By implementing load balancing and distributing the traffic to multiple instances running our application, we introduce better resiliency and higher availability, but, as a drawback, we also introduce complexity as far as maintaining session state is concerned. In a single server setup, the application can easily maintain the state of the application; since all connections are received by the server, the application has a complete picture of incoming requests. When we implement a load balancer, the load balancer receives the connections and forwards the requests to multiple servers running the application, causing each application part to only be able to see the traffic to itself. When a load balancer detects an instance with a high load, it will try to redirect the users to another instance and if we maintain the session state in the application, the...
AWS Certified SysOps Administrator ??? Associate Guide
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AWS Certified SysOps Administrator ??? Associate Guide
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Overview of this book
AWS certifications are becoming one of the must have certifications for any IT professional working on an AWS Cloud platform. This book will act as your one stop preparation guide to validate your technical expertise in deployment, management, and operations on the AWS platform. Along with exam specific content this book will also deep dive into real world scenarios and hands-on instructions.
This book will revolve around concepts like teaching you to deploy, manage, and operate scalable, highly available, and fault tolerant systems on AWS. You will also learn to migrate an existing on-premises application to AWS. You get hands-on experience in selecting the appropriate AWS service based on compute, data, or security requirements. This book will also get you well versed with estimating AWS usage costs and identifying operational cost control mechanisms.
By the end of this book, you will be all prepared to implement and manage resources efficiently on the AWS cloud along with confidently passing the AWS Certified SysOps Administrator – Associate exam.
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Current Title:
AWS Certified SysOps Administrator ??? Associate Guide
Table of Contents (26 chapters)
Preface
Free Chapter
Overview of AWS Certified SysOps Administrators and Associated Certification
The Fundamentals of Amazon Web Services
Managing AWS Security with Identity and Access Management
Networking with the Virtual Private Cloud
Managing Servers on AWS with Elastic Compute Cloud
Handling Server Traffic with Elastic Load Balancing
Understanding Simple Storage Service and Glacier
Understanding Content Distribution with CloudFront
AWS Storage Options
Working with the Route 53 Domain Name System
Working with Relational Database Services
Introduction to ElastiCache
Amazon DynamoDB - A NoSQL Database Service
Working with Simple Queue Service
Handling Messaging with Simple Notification Service
Getting Started with Simple Workflow Service
Overview of AWS Lambda
Monitoring Resources with Amazon CloudWatch
Understanding Elastic Beanstalk
Automation with the CloudFormation Service
Cloud Orchestration with OpsWorks
Exam Tips and Tricks
Mock Tests
Assessments
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Customer Reviews