Explain Concepts Related to Infrastructure as Code (IaC) AT0-001 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

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

   • ATo automatically scale applications based on real-time traffic
   • BTo provide a graphical interface for managing cloud resources
   • CTo replace all manual configuration with a single script that runs once
   • DTo manage and provision infrastructure through machine-readable definition files
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2. 12application · medium

   An administrator runs an Ansible playbook that installs a web server and configures a firewall rule. The playbook is executed multiple times during a deployment. The administrator notices that each run produces the same end state, even though the playbook is run repeatedly. Which IaC principle is being demonstrated?

   • AIdempotency
   • BImmutability
   • CReusability
   • DDeclarative syntax
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4. 13application · medium

   A team manages multiple environments (dev, test, prod) using Terraform. They have a module that defines a virtual network. They want to ensure that applying the same configuration to any environment produces the same result, and that they can reuse the module across environments without modification. Which combination of IaC principles are they applying?

   • AReusability and declarative syntax
   • BIdempotency and immutability
   • CImmutability and reusability
   • DIdempotency and reusability
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5. 14application · medium

   A DevOps team manages infrastructure for multiple projects that share common networking and security configurations. They want to avoid duplicating code across project repositories and ensure that updates to the common configuration propagate consistently. Which IaC practice best addresses this need?

   • ACopy the common configuration into each project's repository and maintain them separately.
   • BUse a single monolithic script that contains all configurations for every project.
   • CCreate reusable modules or templates for the common configurations and reference them from each project.
   • DStore the common configuration in a shared network drive and manually copy it to each project when needed.
   Reveal Solution Discussion Select an answer first
6. 15expert · hard

   A company is migrating to a microservices architecture. They want to use IaC to manage the infrastructure for each microservice. They have a requirement that each microservice's infrastructure must be isolated and that changes to one microservice should not affect others. They also want to reuse common components, such as logging and monitoring, across all microservices. Which IaC approach best meets these requirements?

   • AUse separate IaC projects for each microservice, and share common components via reusable modules.
   • BUse a monolithic script that copies common components into each microservice's configuration.
   • CUse a single IaC project that defines all microservices together.
   • DUse a configuration management tool to manage all microservices on the same servers.
   Reveal Solution Discussion Select an answer first