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Question: What is the AWS Well-Architected Framework?
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Answer: To The AWS Well-Architected Framework provides architectural best practices for designing and operating
reliable, secure, efficient, and cost-effective systems in the cloud. It consists of five pillars:
• Operational Excellence
• Security
• Reliability
• Performance Efficiency
• Cost Optimization.
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Question: What is Amazon Route 53?
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Answer: Amazon Route 53 is a scalable and highly available Domain Name System (DNS) web service designed
to route end users to internet applications. It translates domain names like www.example.com into IP addresses
and can be used to route traffic for various AWS services.
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Question: Can you explain the difference between horizontally scaling and vertically scaling an application?
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Answer: The Horizontal scaling involves adding more instances of resources such as servers or containers to distribute
the load across multiple machines.
The Vertical scaling, on the other hand, involves increasing the capacity of existing resources, such as upgrading
a server's CPU, RAM, or storage, to handle increased load.
Horizontal scaling typically provides better scalability and fault tolerance compared to vertical scaling.
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Question: What is AWS Lambda and how does it differ from traditional server-based architectures?
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Answer: AWS Lambda is a serverless computing service that allows you to run code in response to events
without provisioning or managing servers. It differs from traditional server-based architectures in that you only pay
for the compute time consumed while your code is running, without worrying about server provisioning, scaling, or maintenance.
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Question: What are the different storage classes available in Amazon S3, and when would you use each?
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Answer: Amazon S3 offers various storage classes, including:
• Standard
• Standard-IA (Infrequent Access)
• One Zone-IA
• Intelligent-Tiering
• Glacier
• Glacier Deep Archive.
Each class is optimized for different use cases based on factors like access frequency, durability, and cost.
For example, Standard is suitable for frequently accessed data, while Glacier is ideal for long-term archival.
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Question: Can you explain the concept of Cross-Region Replication in Amazon S3?
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Answer: The Cross-Region Replication in Amazon S3 allows you to automatically replicate objects
from one S3 bucket to another in a different AWS region.
This helps in achieving data redundancy, disaster recovery, and compliance requirements by maintaining copies of data
in multiple geographic locations.
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