CS DevOps & Deployment 3

Question 1

Which practice involves automatically releasing every change that passes all pipeline stages to production without manual approval?

Accepted Answer

Continuous deployment

Answer

Continuous deployment pushes every passing change to production automatically, whereas continuous delivery still requires a manual release decision.

Question 2

A rolling deployment updates a service across 10 servers. What is its key characteristic?

Accepted Answer

Servers are updated incrementally in batches so the service stays available throughout

Answer

Rolling deployments replace instances gradually, keeping enough old instances serving traffic to avoid downtime.

Question 3

What is the primary purpose of a container orchestration platform like Kubernetes?

Accepted Answer

Automating deployment, scaling, and management of containerized applications across clusters

Answer

Orchestrators schedule containers onto machines, scale them, restart failures, and manage networking across a cluster.

Question 4

In monitoring, what distinguishes a metric from a log?

Accepted Answer

A metric is a numeric time-series measurement, while a log is a timestamped record of a discrete event

Answer

Metrics are aggregatable numeric values sampled over time, while logs capture detailed individual events as text records.

Question 5

A build passes on a developer's laptop but fails in CI. Which DevOps principle most directly addresses this problem?

Accepted Answer

Environment consistency through containerized or reproducible builds

Answer

Reproducible, containerized build environments eliminate 'works on my machine' failures by making all environments identical.

(CS) Computer Science Practice Test