Book Image

AWS Certified Advanced Networking - Specialty Exam Guide

By : Marko Sluga
3 (1)
Book Image

AWS Certified Advanced Networking - Specialty Exam Guide

3 (1)
By: Marko Sluga

Overview of this book

Amazon has recently come up a with specialty certifications which validates a particular user's expertise that he/she would want to build a career in. Since the Cloud market now demands of AWS networking skills this becomes the most wanted certification to upheld ones industry portfolio. This book would be your ideal companion to getting skilled with complex and creative networking solutions. Cloud practitioners or associate-level certified individuals interested in validating advanced skills in networking can opt for this practical guide. This book will include topics that will help you design and implement AWS and hybrid IT network architectures along with some network automation tasks. You will also delve deep into topics that will help you design and maintain network architecture for all AWS services. Like most of our certification guides this book will also follow a unique approach of testing your learning with chapter-level practice exercises and certification-based mock tests. The exam mock tests will help you gauge whether you are ready to take the certification exam or not. This book will also be an advanced guide for networking professionals to enhance their networking skills and get certified. By the end of this book, you will be all equipped with AWS networking concepts and techniques and will have mastered core architectural best practices.
Table of Contents (21 chapters)
Free Chapter
Section 1: Introduction
Section 2: Managing Networks in AWS
Section 3: Managing and Securing Network-Attached Platform Services in AWS
Section 4: Monitoring and Operating the AWS Networks
Section 5: Network automation in AWS
Section 6: The Exam

Health checking

Certain routing policies in Route 53 also support health checks. A health check will allow the DNS service to check the target and determine whether the response it receives is healthy or not. A Route 53 health check can either be TCP or HTTP/HTTPS based. The TCP check will simply check the response on the port, while a HTTP/HTTPS health check can also check for a specific string in the origin. Health checks can also include a maximum response time, which can also determine whether the site is responding too slowly to be of any use to clients.

The health-check operation is demonstrated in the following diagram:

Considering the preceding diagram, we see the following:

  1. The user requests the address,
  2. The Route 53 service checks the origins and determines a healthy host
  3. The address of the healthy host is returned to the user