CareerByteCodeโ€™s Substack

CareerByteCodeโ€™s Substack

Trainings

Class 2 - AWS Cloud - Failover & Health Checks in Route 53: Ensuring 24/7 Uptime!

Day 2 of the Cloud DevOps Bootcamp, and today we are diving into the core of AWS cost optimization, auto-scaling, and high-availability networking using Route 53

CareerByteCode's avatar
CareerByteCode
Mar 02, 2025
โˆ™ Paid
11
Share

Hello, Cloud & DevOps Enthusiasts! ๐ŸŽฏ

Weโ€™re back with Day 2 of the Cloud DevOps Bootcamp, and today we are diving into the core of AWS cost optimization, auto-scaling, and high-availability networking using Route 53! ๐ŸŒโšก

๐Ÿ’ก Missed Day 1? Catch up here ๐Ÿ‘‰ Class 1 Recording


๐Ÿ“Œ Todayโ€™s Learning Objectives:

๐Ÿ—๏ธ 1. AWS Auto Scaling & Cost Optimization Strategies

๐Ÿ“Œ Spot Requests in AWS โ€“ Smart Cost Optimization ๐Ÿ’ฐ
๐Ÿ”น What are Spot Instances, and why are they cost-effective?
๐Ÿ”น How to design Spot Requests based on application requirements?
๐Ÿ”น Best practices to avoid instance termination due to price fluctuations.

๐Ÿ“Œ How to Purchase Reserved Instances โ€“ Lock in Cost Savings ๐Ÿ›’
๐Ÿ”น What are Reserved Instances (RI), and how do they help save up to 75% on AWS costs?
๐Ÿ”น Step-by-step guide to purchasing Standard & Convertible Reserved Instances.
๐Ÿ”น How to ensure you only reserve capacity that is truly needed.

๐Ÿ“Œ Reserving AWS Dedicated Hosts โ€“ Full Control Over Your Infrastructure ๐Ÿ 
๐Ÿ”น What are Dedicated Hosts, and how do they differ from normal EC2 instances?
๐Ÿ”น When should you reserve a Dedicated Host vs. use Shared Instances?
๐Ÿ”น Real-world scenarios: Licensing constraints & security compliance considerations.

๐Ÿ“Œ Sizing Virtual Machines (VMs) in AWS โ€“ Choosing the Right Compute Power โš™๏ธ
๐Ÿ”น How to determine CPU, RAM, Storage, and Network requirements?
๐Ÿ”น Understanding AWS EC2 Instance Types (General Purpose, Compute Optimized, Memory Optimized, etc.).
๐Ÿ”น Real-world example: Choosing the right instance type for a web application vs. a database server.

๐Ÿ“Œ AWS Auto Scaling โ€“ Designing for Performance & Cost Efficiency ๐Ÿ”„
๐Ÿ”น What is Auto Scaling, and why is it critical for cloud applications?
๐Ÿ”น Understanding Scaling Policies (Dynamic Scaling, Scheduled Scaling, Predictive Scaling).
๐Ÿ”น How to configure Min Desired Capacity & Max Desired Capacity in auto-scaling groups?

๐Ÿ“Œ Load Balancer with Two Web Servers โ€“ High Availability & Traffic Distribution โš–๏ธ
๐Ÿ”น Step-by-step configuration of an AWS Load Balancer.
๐Ÿ”น Deploying and connecting two EC2 web servers behind the Load Balancer.
๐Ÿ”น How to achieve zero-downtime deployments with AWS Load Balancers?


๐ŸŒ 2. Mastering AWS Route 53 โ€“ DNS Management & Global Traffic Control

๐Ÿ“Œ Understanding AWS Route 53 โ€“ The Backbone of AWS DNS ๐ŸŒŽ
๐Ÿ”น What is Route 53, and why is it different from traditional DNS providers?
๐Ÿ”น Primary functions of Route 53: Domain Registration, DNS Management, and Health Checks.

๐Ÿ“Œ How Route 53 Handles Domain Registration & Hosted Zones ๐Ÿ”—
๐Ÿ”น What are Hosted Zones, and how do they help manage domain records?
๐Ÿ”น Public vs. Private Hosted Zones โ€“ When to use each?

๐Ÿ“Œ High Availability & Scalability with Route 53 โšก
๐Ÿ”น How does AWS ensure 99.99% uptime with Route 53?
๐Ÿ”น How Route 53 integrates with Load Balancers and Auto Scaling Groups.

๐Ÿ“Œ Understanding AWS Route 53 Health Checks & DNS Failover โœ…
๐Ÿ”น What is DNS Failover, and why is it crucial for disaster recovery?
๐Ÿ”น Configuring Active-Passive vs. Active-Active Failover.
๐Ÿ”น How does Route 53 monitor application health and redirect traffic dynamically?

๐Ÿ“Œ Routing Policies in Route 53 โ€“ Managing Global Traffic Efficiently ๐Ÿšฆ
๐Ÿ”น Simple Routing Policy: The most basic DNS resolution method.
๐Ÿ”น Weighted Routing Policy: How to distribute traffic between multiple endpoints.
๐Ÿ”น Latency-Based Routing: Serving users from the nearest AWS region for low-latency access.
๐Ÿ”น Geolocation Routing: Routing users based on their geographic locations.
๐Ÿ”น Failover Routing: Configuring backups in case the primary system goes down.

๐Ÿ“Œ Real-World Use Case: Configuring Route 53 for a Multi-Region Web App ๐ŸŒ
๐Ÿ”น How to set up a Latency-Based Routing Policy across multiple AWS regions.
๐Ÿ”น Using Route 53 with AWS Global Accelerator for ultra-low latency networking.


๐Ÿš€ Why Should You Join This?

โœ… Practical, hands-on approach to AWS Auto Scaling & Route 53
โœ… Industry-best practices for cost optimization & high availability
โœ… Step-by-step guides to deploying scalable cloud architectures
โœ… Real-world assignments & use cases to reinforce learning


๐ŸŽฅ Class 2 Recording & Assignments Coming Soon! Stay Tuned!

๐Ÿš€ Watch, Learn, & Implement the concepts in your own AWS environments!

๐Ÿ”— Catch the Full Blog & Class Details Here:

๐Ÿ’ฌ Drop your questions, insights & assignment submissions in the group! Letโ€™s build & scale together! ๐Ÿš€๐Ÿ”ฅ

This post is for subscribers in the RealTime Expert Support plan

Already in the RealTime Expert Support plan? Sign in
ยฉ 2025 CareerByteCode
Publisher Privacy
Substack
Privacy โˆ™ Terms โˆ™ Collection notice
Start writingGet the app
Substack is the home for great culture