AWS DevOps Configuration Management & Infrastructure as Code

Question 1

What is the primary benefit of Infrastructure as Code (IaC)?

Accepted Answer

It provides consistent and repeatable infrastructure deployments

Answer

Infrastructure as Code (IaC) allows infrastructure to be defined and managed using code, ensuring that environments are provisioned identically every time. This eliminates configuration drift, reduces human error, and makes deployments consistent and repeatable across development, testing, and production environments. This consistency is a primary benefit of IaC.

Question 2

Which tool is commonly used for configuration management?

Accepted Answer

Ansible

Answer

Ansible is a popular open-source automation engine used for configuration management, application deployment, and orchestration. It operates agentlessly, using SSH, and allows users to define desired system states in human-readable YAML playbooks. This makes it highly effective for managing server configurations and ensuring consistency across environments.

Question 3

What is a key advantage of using declarative syntax in IaC?

Accepted Answer

It provides clearer intention of desired outcomes

Answer

Declarative syntax in IaC focuses on *what* the desired state of the infrastructure should be, rather than *how* to achieve it. This makes the configuration files easier to read, understand, and maintain, as they clearly express the end goal without detailing every step. This clarity improves collaboration and reduces errors.

Question 4

What does 'idempotency' mean in the context of configuration management?

Accepted Answer

It provides consistent results on multiple runs

Answer

Idempotency in configuration management means that applying the same configuration multiple times will always result in the same system state, without unintended side effects. This is crucial for reliability, as it ensures that scripts can be run repeatedly without causing issues or unnecessary changes. It guarantees consistent results, which is vital for automated deployments.

Question 5

Which AWS service is designed for infrastructure automation?

Accepted Answer

AWS CloudFormation

Answer

AWS CloudFormation is an AWS service that enables users to model and provision AWS and third-party resources using Infrastructure as Code. It allows you to define your infrastructure in templates and then reliably deploy and update it across your AWS accounts. This service is central to automating infrastructure management within the AWS ecosystem.

AWS Practice Test

AWS Practice Test

AWS DevOps Configuration Management & Infrastructure as Code