5. Describe Principles of Infrastructure as Code 200-901 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   An organization is adopting IaC. They want to ensure that all changes to infrastructure code are reviewed by peers before being applied. Which version control practice should they implement?

   • AUse a shared folder for configuration files
   • BUse feature branches and pull requests
   • CUse email to approve changes
   • DCommit directly to the main branch
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A network engineer is writing a script to configure VLANs on multiple switches. The script first checks if a VLAN exists, then creates it if missing, and then assigns it to the required interfaces. The engineer runs the script twice and notices that the second run produces no changes. Which characteristic of the script is demonstrated?

   • AVersion control
   • BDeclarative model
   • CImperative model
   • DIdempotency
   Reveal Solution Discussion Select an answer first
4. 8application · medium

   An engineer runs the same Ansible playbook three times against a set of switches. The first run makes changes, the second run makes no changes, and the third run makes no changes. What does this behavior indicate about the playbook?

   • AIt is imperative
   • BIt is using a provisioning tool
   • CIt is idempotent
   • DIt is not working correctly
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A network admin uses Ansible to enforce a desired configuration on routers. The playbook includes a task that ensures a specific ACL is present. After the first run, the ACL is created. On subsequent runs, Ansible reports 'ok' and makes no changes. What is this behavior called?

   • AIdempotency
   • BVersion control
   • CImperative execution
   • DProvisioning
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A network engineer is comparing two approaches to automate router configuration. Approach A uses a script that executes commands in a specific order to configure interfaces. Approach B uses a file that describes the desired interface configuration and lets the tool enforce it. What is the key difference between the two approaches?

   • AApproach A is declarative; Approach B is imperative
   • BApproach A is idempotent; Approach B is not
   • CApproach A is imperative; Approach B is declarative
   • DApproach A uses version control; Approach B does not
   Reveal Solution Discussion Select an answer first