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- Herausgeber: John Wiley & Sons
- Kategorie: Wissenschaft und neue Technologien
- Serie: Sybex Study Guide
- Sprache: Englisch
The latest edition of the official study guide for the AWS Advanced Networking certification specialty exam The newly revised second edition of the AWS Certified Advanced Networking Study Guide: Specialty (ANS-C01) Exam delivers an expert review of Amazon Web Services Networking fundamentals as they relate to the ANS-C01 exam. You'll find detailed explanations of critical exam topics combined with real-world scenarios that will help you build the robust knowledge base you need for the test--and to succeed in the field as an AWS Certified Networking specialist. Learn about the design, implementation and deployment of AWS cloud-based Networking solutions, core services implementation, AWS service architecture design and maintenance (including architectural best practices), monitoring, Hybrid networks, security, compliance, governance, and network automation. The book also offers one year of free access to Sybex's online interactive learning environment and expert study tools, featuring flashcards, a glossary of useful terms, chapter tests, practice exams, and a test bank to help you keep track of your progress and measure your exam readiness. The coveted AWS Advanced Networking credential proves your skills with Amazon Web Services and hybrid IT network architectures at scale. It assesses your ability to apply deep technical knowledge to the design and implementation of AWS Networking services. This book provides you with comprehensive review and practice opportunities so you can succeed on the challenging ANS-C01 exam the first time around. It also offers: * Coverage of all relevant exam domains and competencies * Explanations of how to apply the AWS skills discussed within to the real world in the context of an AWS Certified Networking-related career * Complimentary access to the practical Sybex online learning environment, complete with practice exams, flashcards, a glossary, and test bank AWS certification proves to potential employers that you have the knowledge and practical skills you need to deliver forward-looking, resilient, cloud-based solutions. The AWS Certified Advanced Networking Study Guide: Specialty (ANS-C01) Exam, 2nd Edition, is your ticket to the next big step in your career.
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Table of Contents
Cover
Table of Contents
Title Page
Copyright
Dedication
Acknowledgments
About the Author
About the Technical Editor
Introduction
Interactive Online Learning Environment and Test Bank
AWS Certified Advanced Networking - Specialty (ANS-C01) Study Guide Exam Objectives
Objective Map
How to Contact the Publisher
Assessment Test
Answers to Assessment Test
PART I: Network Design
Chapter 1: Edge Networking
Content Distribution Networking
CloudFront
Global Accelerator
Elastic Load Balancers
API Gateway
CloudFront Design Considerations
Summary
Exam Essentials
Exercises
Written Lab
Review Questions
Chapter 2: Domain Name Services
DNS and Route 53
DNS Logging and Monitoring
Route 53 Advanced Features and Policies
Route 53 Service Integrations
Route 53 Application Recovery Controller
Hybrid Route 53
Multi-account Route 53
Multi-Region Route 53
Using Route 53 Public Hosted Zones
Using Route 53 Private Hosted Zones
Using Route 53 Resolver Endpoints in Hybrid and AWS Architectures
Using Route 53 for Global Traffic Management
Domain Registration
Summary
Exam Essentials
Exercises
Review Questions
Chapter 3: Hybrid and Multi-account DNS
Implementing Hybrid and Multi-account DNS Architectures
Route 53 Hosted Zones
Traffic Management
Domain Delegation and Forwarding
Configuring Records in Route 53
Configuring DNSSEC
Multi-account Route 53
DNS Endpoints
Configuring Route 53 Monitoring and Logging
Summary
Exam Essentials
Written Labs
Review Questions
Chapter 4: Load Balancing
Elastic Load Balancing
ELB Connectivity Patterns
Autoscaling
AWS Service Integrations
ELB Configuration Options
Target Groups
Encryption and Authentication
Summary
Exam Essentials
Exercises
Written Labs
Review Questions
Chapter 5: Logging and Monitoring
CloudWatch
Transit Gateway Network Manager
VPC Reachability Analyzer
Access Logs
X-Ray
Flow Logs
Baseline Network Performance
Inspector
Application Insights
Config
Summary
Exam Essentials
Written Labs
Review Questions
PART II: Network Implementation
Chapter 6: Hybrid Networking
Hybrid Connectivity
OSI Layer 1
OSI Layer 2
Encapsulation and Encryption
Routing Fundamentals
The BGP Routing Protocol
Direct Connect
Site-to-Site VPN
AWS Account Resource Sharing
Summary
Exam Essentials
Exercises
Written Labs
Review Questions
Chapter 7: Connecting On-Premises Networks
On-Premises Network Connectivity
VPNs
Layer 1 and Types of Hardware to Use
Transit Gateway
PrivateLink
Resource Access Manager
Testing and Validating Connectivity Between Environments
Summary
Exam Essentials
Written Labs
Review Questions
Chapter 8: Inter-VPC and Multi-account Networking
Networking Services of VPCs
Hub-and-Spoke VPC Architectures
Wide-Area Networking
Expanding AWS Networking Connectivity
Authentication and Authorization
Summary
Exam Essentials
Exercises
Review Questions
Chapter 9: Hybrid Network Routing and Connectivity
Industry-Standard Routing Protocols Used in AWS Hybrid Networks
Optimizing Routing
Connectivity Methods for AWS and Hybrid Networks
AWS Networking Limits and Quotas
Available Private and Public Access Methods for Custom Services
Available Inter-Regional and Intra-Regional Communication Patterns
Summary
Exam Essentials
Written Lab
Exercises
Review Questions
PART III: Network Management and Operations
Chapter 10: Network Automation
Network Automation
Infrastructure as Code
Integrating Network Automation Using Infrastructure as Code
Summary
Exam Essentials
Exercises
Review Questions
Chapter 11: Monitor, Analyze, and Optimize Network Traffic
Monitoring, Analyzing, and Optimizing AWS Networks
Monitor and Analyze Network Traffic to Troubleshoot and Optimize Connectivity Patterns
Analyzing Logging Output to Assess Network Performance and Troubleshoot Connectivity
Optimize AWS Networks for Performance, Reliability, and Cost-Effectiveness
Optimizing Network Throughput
Summary
Exam Essentials
Written Labs
Exercises
Review Questions
PART IV: Network Security, Compliance, and Governance
Chapter 12: Security, Compliance and Governance
Security, Compliance, and Governance
Threat Models
Common Security Threats
Securing Application Flows
Network Architectures That Meet Security and Compliance Requirements
Securing Inbound Traffic Flows
Securing Outbound Traffic Flows
Securing Inter-VPC Traffic
Implementing an AWS Network Architecture to Meet Security and Compliance Requirements
Develop a Threat Model and Identify Mitigation Strategies
Compliance Testing
Automating Security Incident Reporting and Alerting
Summary
Exam Essentials
Exercises
Written Labs
Review Questions
Chapter 13: Network Monitoring and Logging
Network Monitoring and Logging Services in AWS
Alerting Mechanisms
Log Creation with Different AWS Services
Log Delivery Mechanisms
Mechanisms to Audit Network Security Configurations
Traffic Mirroring and Flow Logs
CloudWatch
Correlating and Analyzing Information Across Single or Multiple AWS Log Sources
Summary
Exam Essentials
Exercises
Review Questions
Chapter 14: Confidentiality and Encryption
Confidentiality and Encryption
Network Encryption Options Available on AWS
VPN Connectivity Over Direct Connect
Encryption Methods for Data in Transit
Network Encryption and the AWS Shared Responsibility Model
Security Methods for DNS Communications
Implementing Network Encryption Methods to Meet Application Compliance Requirements
Implementing Encryption Solutions to Secure Data in Transit
Certificate Management Using a Certificate Authority
Summary
Exam Essentials
Exercises
Review Questions
Appendix: Answers to Review Questions
Chapter 1: Edge Networking
Chapter 2: Domain Name Services
Chapter 3: Hybrid and Multi-account DNS
Chapter 4: Load Balancing
Chapter 5: Logging and Monitoring
Chapter 6: Hybrid Networking
Chapter 7: Connecting On-Premises Networks
Chapter 8: Inter-VPC and Multi-account Networking
Chapter 9: Hybrid Network Routing and Connectivity
Chapter 10: Network Automation
Chapter 11: Monitor, Analyze, and Optimize Network Traffic
Chapter 12: Security, Compliance and Governance
Chapter 13: Network Monitoring and Logging
Chapter 14: Confidentiality and Encryption
Index
End User License Agreement
List of Tables
Chapter 1
TABLE 1.1 AWS ELB Product Comparisons: ELB Types
TABLE 1.2 AWS ELB Product Comparisons: Layer 7
TABLE 1.3 AWS ELB Product Comparisons: Characteristics
TABLE 1.4 AWS ELB Security
TABLE 1.5 AWS ELB Kubernetes Controller
TABLE 1.6 AWS ELB Logging and Monitoring
Chapter 8
TABLE 8.1 Standard vs. Enterprise
Chapter 9
TABLE 9.1 BGP Limits
TABLE 9.2 Amazon Route 53
TABLE 9.3 AWS Transit Gateways
TABLE 9.4 AWS App Mesh
Chapter 14
TABLE 14.1 IPSec TLS Comparison
List of Illustrations
Chapter 1
FIGURE 1.1 AWS global CloudFront network
FIGURE 1.2 AWS CloudFront edge distributions
FIGURE 1.3 AWS CloudFront regional edge nodes
FIGURE 1.4 Caching data at CloudFront edge locations
FIGURE 1.5 Origin Shield
FIGURE 1.6 Lambda@edge
FIGURE 1.7 Geo-restriction
FIGURE 1.8 Geolocation
FIGURE 1.9 Global Accelerator high-level architecture
FIGURE 1.10 Global Accelerator speed comparison test
FIGURE 1.11 Cross-zone load balancing
FIGURE 1.12 ALB features
FIGURE 1.13 Gateway load balancer features
FIGURE 1.14 Gateway load balancer VPC interconnections
FIGURE 1.15 NLB features
FIGURE 1.16 Edge API gateways
FIGURE 1.17 Regional API gateways
FIGURE 1.18 API Gateway deployed in a VPC
FIGURE 1.19 Private API gateways
Chapter 2
FIGURE 2.1 URL format
FIGURE 2.2 DNS server hierarchy
FIGURE 2.3 DNS resolution process
FIGURE 2.4 Sample resource record
FIGURE 2.5 DNSSEC key creation
FIGURE 2.6 DNSSEC KSK generation
FIGURE 2.7 DNS Resolver
FIGURE 2.8 Route 53 health checks
FIGURE 2.9 Route 53 health check configuration
FIGURE 2.10 Route 53 health check notification
FIGURE 2.11 Route 53 routing policies
FIGURE 2.12 Route 53 simple routing policy
FIGURE 2.13 Route 53 Multivalue response
FIGURE 2.14 Route 53 latency-based routing policy
FIGURE 2.15 Route 53 failover routing policy
FIGURE 2.16 Route 53 round-robin routing policy
FIGURE 2.17 Route 53 weighted routing policy
FIGURE 2.18 Route 53 geolocation routing policy
FIGURE 2.19 Route 53 geo-proximity routing policy
FIGURE 2.20 Hybrid DNS architecture
FIGURE 2.21 Multi-account DNS
FIGURE 2.22 Multi-account forward requests
FIGURE 2.23 Resolver endpoints
FIGURE 2.24 Route 53 regional failover
FIGURE 2.25 Domain lookup
FIGURE 2.26 Domain choice
FIGURE 2.27 Route 53 domain registration contact information
Chapter 3
FIGURE 3.1 Route 53 hosted zones
FIGURE 3.2 Route 53 private hosted zones
FIGURE 3.3 Route 53 public hosted zones
FIGURE 3.4 Traffic policy editor
FIGURE 3.5 Traffic policy creation step 1
FIGURE 3.6 Traffic policy creation step 2
FIGURE 3.7 Traffic latency-based routing
FIGURE 3.8 Geolocation routing
FIGURE 3.9 Weighted-based routing
FIGURE 3.10 Failover-based routing
FIGURE 3.11 Multivalue-based routing
FIGURE 3.12 Health check configuration step 1
FIGURE 3.13 Health check configuration step 2
FIGURE 3.14 Resolver forwarding rules
FIGURE 3.15 Route 53 record types
FIGURE 3.16 A record
FIGURE 3.17 AAAA record
FIGURE 3.18 CNAME record
FIGURE 3.19 MX record
FIGURE 3.20 Start of Authority record
FIGURE 3.21 TXT record
FIGURE 3.22 PTR record
FIGURE 3.23 Alias record
FIGURE 3.24 SRV record
FIGURE 3.25 SPF record
FIGURE 3.26 NAPTR record
FIGURE 3.27 CAA record
FIGURE 3.28 Inbound/outbound endpoint configuration
FIGURE 3.29 Outbound resolver endpoints
FIGURE 3.30 Outbound endpoint configuration
FIGURE 3.31 Inbound resolver endpoints
FIGURE 3.32 Inbound endpoint configuration
FIGURE 3.33 CloudTrail event history
FIGURE 3.34 Route 53 query logging configuration
Chapter 4
FIGURE 4.1 Gateway load balancing
FIGURE 4.2 Internal load balancing
FIGURE 4.3 External load balancing
FIGURE 4.4 Autoscaling
FIGURE 4.5 Global Accelerator
FIGURE 4.6 Certificate Manager integration with ALB
FIGURE 4.7 Cross-zone load balancing
FIGURE 4.8 Sticky feature configuration
FIGURE 4.9 Deregistration delay
FIGURE 4.10 ELB deletion protection
FIGURE 4.11 ELB deletion protection warning
FIGURE 4.12 Health check configuration
FIGURE 4.13 SSL/TLS offload
FIGURE 4.14 SSL/TLS passthrough
Chapter 5
FIGURE 5.1 CloudWatch metrics
FIGURE 5.2 CloudWatch metric groups
FIGURE 5.3 Enabling detailed monitoring
FIGURE 5.4 CloudWatch log groups
FIGURE 5.5 CloudWatch alarms configuration screen
FIGURE 5.6 CloudWatch Metric Insights
FIGURE 5.7 Network Reachability Analyzer configuration screen
FIGURE 5.8 Network Reachability Analyzer trace results
FIGURE 5.9 Network load balancer CloudWatch logs
FIGURE 5.10 CloudTrail logs
FIGURE 5.11 X-Ray workflow map
FIGURE 5.12 Creating a VPC Flow Log
FIGURE 5.13 Config dashboard
FIGURE 5.14 Config query editor
Chapter 6
FIGURE 6.1 OSI model
FIGURE 6.2 Small form-factor pluggable interfaces
FIGURE 6.3 Ethernet MAC address
FIGURE 6.4 Ethernet MAC address format
FIGURE 6.5 802.1Q VLAN identifiers
FIGURE 6.6 VxLAN tunnel with endpoints
FIGURE 6.7 GRE header
FIGURE 6.8 IPSec transport mode header
FIGURE 6.9 IPSec tunnel mode header
FIGURE 6.10 BGP ASs
FIGURE 6.11 BGP peering table
FIGURE 6.12 Direct Connect private VIF
FIGURE 6.13 Direct Connect public VIF
FIGURE 6.14 VPN backup
FIGURE 6.15 Hardware high availability connections
FIGURE 6.16 Direct Connect configuration wizard
FIGURE 6.17 Direct Connect configuration dialog
FIGURE 6.18 Direct Connect review and create dialog
FIGURE 6.19 Virtual interface creation
FIGURE 6.20 LAG creation
FIGURE 6.21 Direct Connect gateway
FIGURE 6.22 Virtual private gateway
FIGURE 6.23 Site-to-site VPN
Chapter 7
FIGURE 7.1 Dual tunnel site-to-site VPN
FIGURE 7.2 Accelerated site-to-site VPN
FIGURE 7.3 Layer 2 switch
FIGURE 7.4 Basic routing
FIGURE 7.5 Gateways
FIGURE 7.6 Software-defined networking
FIGURE 7.7 Windows
ping
FIGURE 7.8 Windows traceroute
Chapter 8
FIGURE 8.1 VPC peer connection
FIGURE 8.2 Nontransitive peering
FIGURE 8.3 Meshed VPC peering
FIGURE 8.4 Shared resource VPC
FIGURE 8.5 PrivateLink VPC endpoint partner configuration
FIGURE 8.6 PrivateLink VPC endpoint AWS Services configuration
FIGURE 8.7 Hub-and-spoke VPC networks
FIGURE 8.8 AWS Transit Gateway service
FIGURE 8.9 SD-WAN basic architecture
FIGURE 8.10 AWS organizations
FIGURE 8.11 AWS Directory Service configuration screen
Chapter 9
FIGURE 9.1 Edit VPC route
FIGURE 9.2 Route table configuration
FIGURE 9.3 Enabling route propagation
FIGURE 9.4 Service quota dashboard
FIGURE 9.5 Service request
FIGURE 9.6 Quota history tracking
Chapter 10
FIGURE 10.1 Cloud Development Kit workflow
FIGURE 10.2 CloudFormation workflow
FIGURE 10.3 CloudFormation designer
FIGURE 10.4 EventBridge scheduler
FIGURE 10.5 EventBridge target
FIGURE 10.6 EventBridge create schedule
FIGURE 10.7 S3 bucket listing
FIGURE 10.8 S3 bucket object listing
Chapter 11
FIGURE 11.1 Unicast data flow
FIGURE 11.2 Multicast data flow
FIGURE 11.3 Configuring Transit Gateway multicast
FIGURE 11.4 Edge caching
FIGURE 11.5 DynamoDB Accelerator
Chapter 12
FIGURE 12.1 Monolithic architecture
FIGURE 12.2 Microservices architecture
FIGURE 12.3 Serverless architecture
FIGURE 12.4 Containerized architecture
FIGURE 12.5 Edge architecture
FIGURE 12.6 Network Firewall traffic flow
FIGURE 12.7 AWS Shield DDoS protection
FIGURE 12.8 AWS VPC security group inbound
FIGURE 12.9 AWS VPC security group outbound
FIGURE 12.10 AWS VPC NACL inbound
FIGURE 12.11 AWS VPC NACL outbound
FIGURE 12.12 NACL subnet associations
FIGURE 12.13 Untrusted VPC
FIGURE 12.14 Perimeter VPC
FIGURE 12.15 Three-tier architecture
FIGURE 12.16 Hub-and-spoke architecture
Chapter 13
FIGURE 13.1 VPC Flow Logging
FIGURE 13.2 Creating a VPC Flow Log
FIGURE 13.3 Creating a VPC Flow Log
FIGURE 13.4 Created VPC Flow Log
FIGURE 13.5 Flow Log tab
FIGURE 13.6 Flow Log data
FIGURE 13.7 VPC security group inbound
FIGURE 13.8 VPC Traffic Mirroring
Chapter 14
FIGURE 14.1 IPSec VPN
FIGURE 14.2 IPSec handshake
FIGURE 14.3 TLS handshake
FIGURE 14.4 CloudFront edge TLS encryption
FIGURE 14.5 Encrypted load balancing
FIGURE 14.6 Bastion host
FIGURE 14.7 RDS encryption
FIGURE 14.8 S3 encryption
Guide
Cover
Title Page
Copyright
Dedication
Acknowledgments
About the Author
Introduction
Table of Contents
Begin Reading
Appendix: Answers to Review Questions
Index
End User License Agreement
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AWS®Certified Advanced NetworkingStudy Guide
Specialty (ANS-C01) Exam
Second Edition
Todd Montgomery
Copyright © 2024 by John Wiley & Sons, Inc. All rights reserved.
Published by John Wiley & Sons, Inc., Hoboken, New Jersey.Published simultaneously in Canada and the United Kingdom.
ISBNs: 9781394171859 (paperback), 9781394171873 (ePDF), 9781394171866 (ePub)
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at www.wiley.com/go/permission.
Trademarks: WILEY, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without written permission. AWS is a registered trademark of Amazon Technologies, Inc. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book.
Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representations or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.
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Cover image: © Jeremy Woodhouse/Getty Images, Inc.Cover design: Wiley
This book is dedicated to My Nguyen for all her support and patience.
Acknowledgments
First off, I would like to acknowledge and thank you, the readers of this book. You are the reason for all the long hours of research and writing to complete this rather large undertaking. I truly want to give back to the tech community, and this is my contribution to the networking community that I have spent my life in. I hope that by allowing me to transfer some of my knowledge to you, you can be more successful in your career and, of course, pass the AWS Advanced Networking exam. If you become a better networking engineer because of something you picked up reading this book, then I will feel satisfied.
To my wonderful daughter, who is now in college at Georgia State University, I want to thank you for the support and giving me encouragement when yet another weekend was consumed writing this book. My Nguyen was so understanding and supportive, it just never stops amazing me. She understood the sacrifices made and our missed time together as I hid out in libraries around the city pounding out text to complete yet another chapter. She is an amazing woman and helped me across the finish line of completing this book. Thank you, My!
There is the whole team at Wiley that I want to acknowledge and thank for all the support and assistance they gave me through this project. Thank you, Ken Brown, helping me through every project I undertake with Wiley; you have helped me so much over the years and I really appreciate everything you do. Kelly Talbot was the force behind the scenes as the development editor who tried to keep me out of the ditch as much as possible. Kelly, thank you for all the hours you dedicated to making this book as professional and accurate as we possibly could, I know it was not easy. I want to thank the managing editor, Pete Gaughan, for all his hard work. As always, there is a team of Wiley professionals in offices coast to coast who work behind the scenes to edit and produce quality books. To all the hidden Wiley professionals, thank you for all the great work you do!
—Todd Montgomery
About the Author
Todd Montgomery has been in the networking industry for more than 40 years. Todd holds many AWS, CompTIA, Cisco, and Juniper certifications. Todd has spent most of his career in the field working on-site in data centers throughout North America and around the world. He has worked on the most advanced networks of equipment manufacturers, systems integrators, and end users in the data center and cloud computing environments of the private sector, service providers, and the government sector. Todd currently works as a data center network automation engineer in Austin, Texas. He is involved in network implementation and support of emerging data center technologies and AWS public cloud services. Todd lives in Austin, Texas, and in his free time enjoys auto racing, traveling, general aviation, and Austin's live music venues. He can be reached at [email protected].
About the Technical Editor
Doug Holland is a software engineer and architect at SnapLogic and previously spent 13 years at Microsoft Corporation. He holds a master's degree in software engineering from the University of Oxford. Before joining Microsoft, he was awarded the Microsoft MVP and Intel Black Belt Developer awards.
Introduction
There is a lot to know to really understand advanced networking in general and specifically how to configure and manage all the networking services AWS offers us in their cloud. As I was researching and performing deep dives into all the topics I needed to cover for the exam, I kept thinking, this could really be a massive book that would take years to put together and then still not cover everything with as much detail as I wanted. However, that is the business we are in; it's very complex, and the technologies, protocols, and service offerings change all the time. Maybe that's why we find networking so interesting. I have been a hands-on networking engineer for my whole career and have worked on some of the largest networks in the world and helped bring many new networking technologies to the global market. I have also taken more than 50 networking certification exams over the last 30 or so years. The AWS Advanced Networking Specialty Exam ranks as one of the most difficult tests I have ever taken. I came from the enterprise networking world and spent many years working with many AWS cloud services and still found it to be a difficult exam. This exam is very different than a networking vendor's certification test track. I cannot stress this enough: you must learn networking from a cloud perspective and know the material in the exam blueprint at a deep and detailed level. This is not an associate level certification; it goes very deep into networking, and you must know the material well if you expect to pass the exam.
Every effort has been made to include as much detail as possible in the guide. However, I strongly suggest that you also read the FAQ, developer guides, and white papers that AWS has posted on the services covered in the exam. As is often said, the more, the better. Many of the services covered in this book are chargeable in AWS; however, I urge you to get as much console time as you can to better understand the topics. You do not have to enable everything; just “take a look” in the console to get a better understanding of the services.
The exam goes way beyond just identifying the services and their basic functions. There will be detailed scenario questions that really make you think. Read the questions carefully and take the time to really understand what is being asked before you select the best answer. There may be several answers that look plausible, but read each one closely and select the most appropriate answer from the options given. Remember, one word in the question or answer can change everything.
Interactive Online Learning Environment and Test Bank
Studying the material in the AWS Certified Advanced Networking Study Guide Specialty (ANS-C01) Exam Second Edition is an important part of preparing for the AWS Certified Advanced Networking - Specialty (ANS-C01) exam, but we provide additional tools to help you prepare. The online test bank will help you understand the types of questions that will appear on the certification exam.
The Sample Tests in the test bank include all the questions in each chapter as well as the questions from the assessment test that appears after this introduction. In addition, there are two practice exams with 50 questions each. You can use these tests to evaluate your understanding and identify areas that may require additional study.
The flashcards in the test bank will push the limits of what you should know for the certification exam. There are 100 questions provided in digital format. Each flashcard has one question and one correct answer.
The online glossary is a searchable list of key terms introduced in this exam guide that you should know for the AWS Certified Advanced Networking - Specialty (ANS-C01) exam.
To start using these to study for the AWS Certified Advanced Networking - Specialty (ANS-C01) exam, go to www.wiley.com/go/sybextestprep, register your book to receive your unique PIN, and then once you have the PIN, return to www.wiley.com/go/sybextestprep; find your book and click register or log in and follow the link to register a new account or add this book to an existing account.
Like all exams, the Advanced Networking certification from AWS is updated periodically and may eventually be retired or replaced. At some point after AWS is no longer offering this exam, the old editions of our books and online tools will be retired. If you have purchased this book after the exam was retired or are attempting to register in the Sybex online learning environment after the exam was retired, please know that we make no guarantees that this exam's online tools will be available once the exam is no longer available.
AWS Certified Advanced Networking - Specialty (ANS-C01) Study Guide Exam Objectives
This table provides the extent, by percentage, that each section is represented on the actual examination.
Section
% of Examination
Domain 1: Network Design
30%
Domain 2: Network Implementation
26%
Domain 3: Network Management and Operations
20%
Domain 4: Network Security, Compliance, and Governance
24%
Total
100%
Exam objectives are subject to change at any time without prior notice and at AWS's sole discretion. Please visit the AWS Certified Advanced Networking - Specialty (ANS-C01) website at https://aws.amazon.com/certification/certified-advanced-networking-specialty for up-to-date information on the certification and details on taking the exam. It is important to be familiar with the current exam objectives that can be downloaded here: https://d1.awsstatic.com/training-and-certification/docs-advnetworking-spec/AWS-Certified-Advanced-Networking-Specialty_Exam-Guide.pdf.
Objective Map
Objective
Chapter
Domain 1: Network Design
1.1: Design a solution that incorporates edge network services to optimize user performance and traffic management for global architectures.
1
1.2: Design DNS solutions that meet public, private, and hybrid requirements.
2
1.3: Design solutions that integrate load balancing to meet high availability, scalability, and security requirements.
4
1.4: Define logging and monitoring requirements across AWS and hybrid networks.
5
1.5: Design a routing strategy and connectivity architecture between on-premises networks and the AWS cloud.
6
1.6: Design a routing strategy and connectivity architecture that include multiple AWS accounts, AWS regions, and VPCs to support different connectivity patterns.
6
Domain 2: Network Implementation
2.1: Implement routing and connectivity between on-premises networks and the AWS cloud.
7
2.2: Implement routing and connectivity across multiple AWS accounts, regions, and VPCs to support different connectivity patterns.
8
2.3: Implement complex hybrid and multi-account DNS architectures.
3
2.4: Automate and configure network infrastructure.
10
Domain 3: Network Management and Operations
3.1: Maintain routing and connectivity on AWS and hybrid networks.
9
3.2: Monitor and analyze network traffic to troubleshoot and optimize connectivity patterns.
11
3.3: Optimize AWS networks for performance, reliability, and cost-effectiveness.
11
Domain 4: Network Security, Compliance, and Governance
4.1: Implement and maintain network features to meet security and compliance needs and requirements.
12
4.2: Validate and audit security by using network monitoring and logging services.
13
4.3: Implement and maintain confidentiality of data and communications of the network.
14
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Assessment Test
You have deployed AWS Lambda@edge to run code that gets triggered by CloudFront events. You want to validate that the Lambda function is triggered when a specific header is present in the request. Which action should you take?
Modify your CloudFront distribution to forward the specific header to the origin
Modify your CloudFront distribution to add a custom header and prepend the value of true
Modify CloudFront to whitelist the specific header
Code the Lambda function to check for the presence of the specific header in the request
Implement the AWS WAF service to create a rule that allows requests with the specific header
You are deploying the AWS Elastic Load Balancer service to distribute inbound traffic across multiple EC2 instances. You want to verify that the load balancer is routing traffic to instances in multiple availability zones. Which action can you take to accomplish this?
Modify the load balancer to use the cross-zone algorithm
Create a load balancer all-at-once routing policy
Launch the backend EC2 instances in multiple availability zones and register them with the load balancer
Use the weighted routing policy on the load balancer
Enable Route 53 latency-based routing to route traffic to instances in multiple availability zones
You are the senior cloud networking engineer for an international e-commerce company. You manage a global network of web servers that are hosted in six different AWS regions. The current task is to configure Route 53 to route traffic to the web servers in the region that have the lowest latency for each user. Which routing policy would you use to accomplish this?
Simple routing
Failover routing
Geolocation routing
Geo-proximity routing with traffic biasing
Latency routing
You manage the public hosted zone for your domain
tipofthehat.com
and want to configure Route 53 to route traffic for the
www.tipofthehat.com
subdomain to a new EC2 instance you are deploying in us-east-1. Which option is the correct configuration?
Create an
NS
record for the
www.tipofthehat.com
subdomain that points to the name servers for the public hosted zone
Create an
A
record for the
www.tipofthehat.com
subdomain that points to the public IP address of the EC2 instance
Create an
MX
record for the
www.tipofthehat.com
subdomain that points to the mail servers for the public hosted zone
Create a
TXT
record for the
www.tipofthehat.com
subdomain that contains the public IP address of the EC2 instance
Create a
CNAME
record for the
www.tipofthehat.com
subdomain that points to the public IP address of the EC2 instance
Your company has a pool of EC2 instances running web applications. You plan to use the AWS Network Load Balancer service to distribute traffic across the EC2 instances. You must architect the network to ensure that the load balancer is able to handle spikes in traffic and that it is highly available. Which configuration should you use?
Deploy a single network load balancer with a single subnet
Configure a single network load balancer with multiple subnets in the same availability zone
Use a single network load balancer with multiple subnets in different availability zones
Deploy a multi-AZ network load balancer with a single subnet in each availability zone
Deploy a multi-AZ network load balancer with multiple subnets in each availability zone
You are a cloud networking engineer for a large financial services company. The firm has a fleet of EC2 instances that are all running a web application. You plan on using CloudWatch to monitor the network performance of the EC2 instances. Your plan is to generate CloudWatch alerts if the network performance drops below a defined threshold that you configure. Which metrics would be the best to monitor for the network performance of the EC2 instances?
NetworkIn
NetworkOut
PercentPacketLoss
PacketsReceived
PacketsSent
Your company has a VPC that contains a fleet of EC2 instances running a web application. You are planning to configure CloudTrail to log all API calls that are made to the EC2 instances. You also want to use VPC Flow Logs to capture information about the network traffic that is flowing to and from the EC2 instances. Which one of the following options will enable you to capture the source and destination IP addresses, the ports, and the protocols of the network traffic that are associated with the API calls?
Configure CloudTrail to log all API calls to the EC2 instances and configure VPC Flow Logs to export the logs to CloudWatch Logs
Configure CloudTrail to log all API calls to the EC2 instances and configure VPC Flow Logs to export the logs to Amazon S3
Configure CloudTrail to log all API calls to the EC2 instances and configure VPC Flow Logs to export the logs to a Lambda function
Configure CloudTrail to log all API calls to the EC2 instances and configure VPC Flow Logs to export the logs to a CloudWatch Logs Insights query
You are setting up AWS GuardDuty for a large construction company in Austin, Texas. They have multiple accounts and VPCs in the company. You need to ensure that all findings are sent to a central security operations center account for correlation, analysis, and a unified response. Which option would best fit this requirement?
Enable GuardDuty in each account and configure it to send findings to the SOC account using Amazon SNS
Enable GuardDuty in the SOC account and monitor all the accounts using cross-account access
Enable GuardDuty in each account and configure it to send findings to the SOC account using Amazon SQS
Enable GuardDuty in the SOC account and configure it to assume an IAM role in each monitored account
Enable GuardDuty in each account and configure it to send findings to the SOC account using AWS Lambda
Your company has a default VPC running in the ap-northeast-2 Seoul region that hosts a fleet of EC2 instances running a web application. You want to use AWS Direct Connect to connect the VPC to your on-premises data center in Goyang. You must establish a connection that is highly available. Which of the following offers the highest level of availability?
Establish a single Direct Connect connection with a single 10 Gbps port
Establish a single Direct Connect connection with two 10 Gbps ports
Establish two Direct Connect connections, each with a single 10 Gbps port
Establish two Direct Connect connections, each with two 10 Gbps ports
You are a senior networking engineer at a large bank that has a VPC that contains a fleet of EC2 instances running a web application. You also have data center servers that need to be able to communicate with the EC2 instances. You want to use AWS Transit Gateway to connect your VPC to your data center. You must ensure that the connection is highly available, and you can scale the network as needed. Which of the following will meet this requirement?
Create a single Transit Gateway attachment with a single 10 Gbps BGP session
Create a single Transit Gateway attachment with two 10 Gbps BGP sessions
Create two Transit Gateway attachments, each with a single 10 Gbps BGP session
Create two Transit Gateway attachments, each with two 10 Gbps BGP sessions
You work for a construction company that has a VPC that contains a fleet of EC2 instances running a web application in the eu-west-2 London region. You want to use the AWS Reachability Analyzer to verify that the EC2 instances are reachable from the Internet. You need to be able to trace the path the network traffic takes from the Internet to the EC2 instances. Which option should you use to configure AWS Reachability Analyzer?
Configure AWS Reachability Analyzer to analyze the path from a specific IP address on the Internet to the EC2 instances
Configure AWS Reachability Analyzer to analyze the path from a specific CIDR block on the Internet to the EC2 instances
Configure AWS Reachability Analyzer to analyze the path from a specific EC2 instance to the Internet
Configure AWS Reachability Analyzer to analyze the path from a specific VPC to the Internet
Your company has two VPCs, one for production and one for development. You want to allow the EC2 instances in the production VPC to communicate with the EC2 instances in the development VPC. Your CIO has asked you to do this without using a VPN or Direct Connect. Which option should you use to configure VPC peering?
Create a VPC peering connection between the production VPC and the development VPC
Create a VPN connection between the production VPC and the development VPC
Create a Direct Connect connection between the production VPC and the development VPC
Create a Bastion host in the production VPC and allow the EC2 instances in the development VPC to connect to the Bastion host
Your company has a microservices architecture that is deployed on AWS. They are requesting that you use AWS App Mesh to control the traffic between the microservices. You must ensure that the traffic is routed in a way that minimizes latency and maximizes availability. Which of the following options should you use to configure App Mesh?
Create a virtual service for each microservice and use a service mesh router to route the traffic between the virtual services
Create a virtual service for each of the microservices and use a service mesh router to route the traffic between the microservices
Create a virtual service for each microservice and use a service mesh proxy to route the traffic between the microservices
Create a single virtual service for all the microservices and use a service mesh proxy to route the traffic between the microservices
Your company has a VPC that runs six EC2 instances hosting a custom web application. You want to use CloudFormation to create a new subnet in the VPC and then launch a new EC2 instance in the subnet. Which of the following options best fits this requirement?
Create the new subnet in the VPC using the AWS CLI. Then, deploy the new EC2 instance to the subnet using the AWS CLI
Create the subnet in the VPC using the AWS Management Console. Then, deploy the new EC2 instance to the subnet using the AWS Management Console
Create a new subnet and deploy the new EC2 instance using a CloudFormation template
Create the new subnet using the AWS CLI and deploy the new EC2 instance using a CloudFormation template
The research organization that you work for has deployed a cluster of EC2 instances that are running a high-performance computing application. You want to implement the AWS Elastic Fabric Adapter interface to increase the performance of the application. Which options would provide the best performance improvement?
Create a single Elastic Fabric Adapter interface and attach it to all the cluster EC2 instances
Create multiple Elastic Fabric Adapter interfaces and attach one EFA to each EC2 instance in the cluster
Create a single Elastic Fabric Adapter interface and attach it to a subset of the cluster EC2 instances
Create multiple Elastic Fabric Adapter interfaces and attach one EFA to a subset of the EC2 instances in the cluster
You are the senior network engineer for a large shipping company. The company's production VPC hosts a fleet of EC2 instances running a custom web application. You are planning on configuring Traffic Mirroring to capture all ingress and egress traffic from the EC2 instances and storing the captured traffic into a CloudWatch Logs log group. What is the best way to configure VPC Traffic Mirroring?
Create a VPC traffic mirror session that mirrors all the traffic to a network interface in the VPC. Then, enable your CloudWatch Logs subscription for the network interface
Configure a VPC traffic mirror session that mirrors all the traffic to a CloudWatch Logs log group
Set up a VPC traffic mirror session that mirrors all the traffic to an AWS S3 bucket Next, configure a CloudWatch Logs subscription for the S3 bucket
Configure a VPC traffic mirror session that mirrors all the traffic into a Kinesis Data Firehose stream. Then, create a CloudWatch Logs subscription for the Kinesis Data Firehose
You work as the senior cloud network engineer for a data analytics company. The company's eu-west-1 Ireland test VPC hosts six large EC2 instances that are all running an AI application. You want to use an AWS Elastic Network Interface (ENI) to create a dedicated network interface for each of the EC2 instances. Which option should you use to create dedicated network interfaces for each EC2 instance?
Create a single ENI and attach it to all the EC2 instances in the VPC
Create multiple ENIs and attach one each to the EC2 instance in the VPC
Create a single ENI and attach it to a subset of the EC2 instances in the VPC
Create multiple ENIs and attach one ENI to a subset of the EC2 instances in the VPC
You are a network engineer for a large university. It has a website that is hosted in the AWS us-west-1 California region. You are concerned about the website being attacked by a DDoS attack and are planning on using the AWS Shield service to protect your website. Which of the following provides the best protection against a DDoS attack?
Enable AWS Shield Standard
Enable AWS Shield Advanced
Enable AWS Shield Standard and AWS Shield Advanced
Enable AWS Shield Advanced and configure custom DDoS protection rules
Your company has a fleet of EC2 instances running a critical web application. You are planning on using the AWS Firewall Manager to create a centralized firewall policy for all of the EC2 instances. Which option allows you to create a centralized firewall policy?
Create a firewall policy in each VPC that the EC2 instances are in
Create a firewall policy in a single VPC and attach it to all the EC2 instances
Create a firewall policy in AWS Firewall Manager and attach it to all the EC2 instances
Create a firewall policy in AWS Firewall Manager and attach it to the VPCs that the EC2 instances are in
You are a network engineer for a chain of retail stores in eastern Canada. The company has deployed a fleet of EC2 instances running a secure web application. You plan to use the AWS Certificate Manager to create a certificate to secure the web application. Which option allows you to create a certificate that will be trusted by all major browsers?
Create a self-signed certificate
Create a certificate that is signed by a third-party certificate authority
Create a certificate that is signed by AWS Certificate Manager
Create a certificate that is signed by Amazon Trust Services
Answers to Assessment Test
D. To accomplish this requirement, you would need to modify the Lambda function to check for the presence of the specific header in the request. The Lambda function will trigger only when a specific header is present in the request. You must modify the Lambda function code to check for the presence of the header, and if the header is present, the function will continue processing; otherwise, it can return the appropriate response that you define. The other options are not correct because they do not provide a way to trigger the Lambda function based on the presence of a specific header. Forwarding headers and adding custom headers do not affect how Lambda functions are triggered. Whitelisting headers can allow CloudFront to forward headers to the origin but does not affect how Lambda functions are triggered. The AWS Web Application Firewall is used to protect against web exploits but does not affect how Lambda functions are triggered.
C. To ensure that Elastic Load Balancer routes traffic to instances in multiple availability zones, launch the backend EC2 instances in multiple availability zones and register them with the load balancer. Once this has been completed, the load balancer will automatically distribute incoming traffic across the registered instances in all availability zones. The other options are incorrect because they do not provide a way to route traffic to instances in multiple availability zones. Cross-zone load balancing and routing policies will affect how traffic is distributed across registered instances but do not ensure that instances are launched in multiple availability zones. Using Amazon’s Route 53 DNS latency-based routing can route traffic based on the lowest network latency but does not affect how the Elastic Load Balancer routes traffic.
D. Geo-proximity routing with traffic biasing is the best routing policy to use to accomplish this requirement. Geo-proximity routing with traffic biasing routes traffic to the resource that is closest to the user's location, but it also allows you to configure bias routing so that traffic is more likely to be routed to a particular region. This ensures that traffic is routed to a region that has the lowest latency for a particular user. Geo-proximity routing with traffic biasing uses the source IP address of the user's request to determine the closest AWS resource. The user's IP address is used to calculate the distance between the user and the resource. The resource that is closest to the user is then routed to. If you have configured Route 53 traffic biasing, it will also consider the weight that you have assigned to each region. This means you can bias the routing so that traffic is more likely to be routed to a particular region. Simple routing is the simplest routing policy. It routes traffic to the first resource that is listed in the record and does not consider the location of the user. Failover routing is used to route traffic to a backup resource if the primary resource is unavailable and is not the best routing policy to use in this case. Geolocation routing routes traffic to the resource that is closest to the user's location, and latency routing routes traffic to the resource that has the lowest latency; however, neither of these routing policies allow you to bias the routing.
E. A
CNAME
record maps a subdomain to another domain name or IP address. In this requirement, you must map the
www.tipofthehat.com
subdomain to the public IP address of the EC2 instance. The
NS
record specifies the name servers for a hosted zone and is not used to route traffic to a specific IP address. The
A
record is used to specify the IP address for a domain name and is not used to route traffic to a subdomain.
MX
records specify the mail servers for a domain name.
TXT
records are used to specify text associated with a domain name. MX and txt records are not used to route traffic to a specific IP address.
E. The multi-AZ network load balancer has two load balancers that are in different availability zones. Deploying the multi-AZ network load balancer with multiple subnets in each availability zone is the best configuration to use to meet your requirements. The multi-AZ network load balancer is highly available because it has two load balancers each in a different availability zone. If one availability zone goes down, the other availability zone will still be able to handle traffic. Also, using multiple subnets in each availability zone will help to distribute traffic across the subnets, which will improve performance. Using a single NLB with a single subnet is not highly available. If the subnet goes down, the load balancer will also go down. Using a single NLB with multiple subnets in the same availability zone is not as highly available as a multi-AZ NLB. If the availability zone goes down, all subnets in the availability zone will also go down. Deploying a single NLB with multiple subnets in different availability zones is not a good option because it does not distribute traffic across the subnets. Configuring the multi-AZ NLB with a single subnet in each availability zone is not a good option because it does not distribute traffic across the subnets.
C. PercentPacketLoss would be the preferred metric for monitoring the network performance of the EC2 instances. PercentPacketLoss measures the percentage of packets that are lost in transit. If the metric is high, it means that there is a problem with the network performance. A high packet loss metric indicates that there is a problem with the network performance. This could be because of a congested network, a faulty network device, or a software bug. NetworkIn measures the number of bytes that are received by the EC2 instance. NetworkOut measures the number of bytes that are sent by the EC2 instance. PacketsReceived measures the number of packets that are received by the EC2 instance and PacketsSent measures the number of packets that are sent by the EC2 instance. These metrics are not as useful for monitoring network performance as PercentPacketLoss because they do not consider the number of packets that are lost.
A. The best option is to configure CloudTrail to log all API calls to the EC2 instances and enable VPC Flow Logs and export the logs to CloudWatch Logs. CloudTrail will log the source and destination IP addresses, the ports, and the protocols of the API calls. VPC Flow Logs will log the source and destination IP addresses, the ports, and the protocols of the network traffic. When you combine the logs from CloudTrail and VPC Flow Logs, you will be able to see the source and destination IP addresses, the ports, and the protocols of the network traffic that is associated with the API calls. CloudTrail allows you to track AWS API calls made on your behalf. VPC Flow Logs enables you to capture information about the network traffic that is flowing to and from your VPC. By combining the logs from CloudTrail and VPC Flow Logs, you can get a complete picture of the activity that is happening in your VPC.
Configuring CloudTrail to log all API calls to the EC2 instances and configuring VPC Flow Logs to export the logs to Amazon S3 is not as good an option as configuring the logs to export to CloudWatch Logs. By using CloudWatch Logs, you have a centralized location to store and analyze your log data, which makes it easier to troubleshoot problems. Configuring CloudTrail to log all API calls to the EC2 instances and configuring VPC Flow Logs to export the logs to a Lambda function is not as desirable an option as configuring the logs to export to CloudWatch Logs. Lambda functions are a powerful tool that can be used to automate tasks, but they are not as good a solution for storing and analyzing log data as CloudWatch Logs. Configuring CloudTrail to log all API calls to the EC2 instances and configuring VPC Flow Logs to export the logs to a CloudWatch Logs Insights query is not as good an option as configuring the logs to export to CloudWatch Logs. CloudWatch Logs Insights is a powerful tool that allows you to query your log data, but it is not as easy to use as CloudWatch Logs.
B. GuardDuty supports cross-account access enabling you to designate one AWS account as a master account that can view and manage GuardDuty findings from member accounts. This enables you to centralize the management of GuardDuty findings in a single SOC account. SNS, SQS, and Lambda are not used for sending GuardDuty findings between accounts, assuming an IAM role is not necessary for cross-account access with GuardDuty.
C. AWS Direct Connect is a service that allows you to create a dedicated network connection between your on-premises network and AWS. Establishing two Direct Connect connections, each with a single 10 Gbps port, will provide the highest availability. If one connection goes down, the other connection will still be available. Creating a single Direct Connect connection with a single 10 Gbps port will not provide the highest level of availability. Establishing a single Direct Connect connection with two 10 Gbps ports would also not provide the highest level of availability. In both options, if the connection goes down, you will lose connectivity to AWS. Creating two Direct Connect connections, each with two 10 Gbps ports, will provide more bandwidth at a higher cost than option C.
D. AWS Transit Gateway service allows you to create a central hub for your network traffic. Transit Gateway attachments allow you to connect your VPCs and on-premises networks to the gateway. BGP sessions are used to establish communication between the Transit Gateway and your networks. Creating two Transit Gateway attachments, each with two 10 Gbps BGP sessions, will meet the requirements of the scenario. This is because it will provide the highest level of availability and the ability to scale the network as needed. Creating a single Transit Gateway attachment with a single 10 Gbps BGP session will not meet the requirements of the scenario because it will not provide high availability. Creating a single Transit Gateway attachment with two 10 Gbps BGP sessions does not provide the ability to scale the network as needed. Creating two Transit Gateway attachments, each with a single 10 Gbps BGP session, will not provide the highest level of availability.
B. AWS Reachability Analyzer service allows you to analyze network paths between two points in your AWS network. You can use Reachability Analyzer to troubleshoot connectivity issues and to verify that your network is configured correctly. Configuring AWS Reachability Analyzer to analyze the path from a specific CIDR block from the Internet to the EC2 instances is the best option in this case. This is because it will allow you to see the path that the network traffic takes from the Internet to the EC2 instances, regardless of the specific IP address that is used to access the EC2 instances.
Configuring AWS Reachability Analyzer to analyze the path from a specific IP address on the Internet to the EC2 instances is not as good an option as configuring the analysis to analyze the path from a specific CIDR block on the Internet to the EC2 instances. This is
