DevOps & Automation Flashcards
6 cards from real IT and Technology practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 6 DevOps & Automation flashcards as text
Which configuration management tool uses an agentless, SSH-based approach?
Answer: Ansible
Ansible is agentless and communicates with managed nodes over SSH using YAML-based playbooks, requiring no software installed on targets.
In Docker, what is the function of a Dockerfile?
Answer: Defining the instructions to build a container image
A Dockerfile contains a series of instructions that Docker executes in order to build a repeatable, layered container image.
What metric best measures the speed of a DevOps team's deployment process?
Answer: Deployment frequency
Deployment frequency measures how often code is successfully released to production, directly reflecting pipeline speed and automation maturity.
Which practice involves automatically rolling back a deployment when error rates exceed a threshold?
Answer: Automated rollback
Automated rollback uses monitoring thresholds to detect failures and revert to the previous stable version without manual intervention.
What is the primary benefit of using immutable infrastructure?
Answer: Servers are never modified after deployment, improving consistency
Immutable infrastructure replaces servers rather than patching them in place, eliminating configuration drift and ensuring consistent, reproducible environments.
Which open-source tool is widely used for monitoring metrics and alerting in DevOps environments?
Answer: Prometheus
Prometheus is an open-source time-series monitoring system that scrapes metrics from targets and supports alerting via Alertmanager.