AWS Cloud Architecture & Infrastructure

Question 1

What is the main advantage of using a multi-region architecture in AWS?

Accepted Answer

Improved availability and reduced latency

Answer

A multi-region architecture in AWS significantly improves availability by distributing applications across geographically separate data centers, making them resilient to regional outages. It also reduces latency for users by serving content from a region closer to them. This setup ensures high performance and continuous service delivery even during failures.

Question 2

Which AWS service provides automatic scaling for applications based on demand?

Accepted Answer

AWS Auto Scaling

Answer

AWS Auto Scaling is specifically designed to automatically adjust the number of compute resources for applications in response to demand fluctuations. It ensures that applications have enough capacity to handle peak loads while also optimizing costs by scaling down during periods of low usage. This service maintains application performance and availability without manual intervention.

Question 3

What is the primary function of Amazon VPC?

Accepted Answer

Create logically isolated cloud networks

Answer

Amazon Virtual Private Cloud (VPC) allows users to provision a logically isolated section of the AWS Cloud where they can launch AWS resources in a virtual network they define. This isolation provides enhanced security and control over network configurations, including IP address ranges, subnets, route tables, and network gateways. It essentially creates a private, customizable network environment within AWS.

Question 4

Which AWS service is used to distribute incoming application traffic across multiple targets?

Accepted Answer

AWS Elastic Load Balancer (ELB)

Answer

AWS Elastic Load Balancer (ELB) automatically distributes incoming application traffic across multiple targets, such as EC2 instances, containers, and IP addresses, in one or more Availability Zones. This distribution enhances the fault tolerance and scalability of applications by preventing any single target from becoming a bottleneck. ELB also monitors the health of its registered targets and routes traffic only to healthy ones.

Question 5

Why is AWS CloudFormation used in infrastructure management?

Accepted Answer

Enables infrastructure as code (IaC)

Answer

AWS CloudFormation is used in infrastructure management because it enables Infrastructure as Code (IaC), allowing users to define and provision AWS infrastructure resources using a simple text file. This approach ensures consistent, repeatable deployments, reduces manual errors, and allows infrastructure to be version-controlled and managed like application code. It simplifies the process of building and tearing down environments.

AWS Practice Test

AWS Practice Test

AWS Cloud Architecture & Infrastructure