Jenkins Jenkins Build Triggers and Scheduling 3

Question 1

What is the purpose of the 'Quiet Period' setting in a Jenkins job configuration?

Accepted Answer

Delays the build start to allow multiple incoming changes to be batched together

Answer

Silences build notifications for a period

Answer

Prevents builds from running during specified hours

Answer

Sets a cooldown between consecutive builds

Question 2

Which trigger type in Jenkins allows builds to be queued when an upstream job is UNSTABLE in addition to successful?

Accepted Answer

Build after other projects are built (with 'Trigger even if the build is unstable' option)

Answer

Poll SCM with unstable flag

Answer

Conditional BuildStep plugin

Answer

Post-build action with threshold

Question 3

In Jenkins, what does setting a job's 'Build Periodically' trigger to 'H H(6-8) * * 1-5' mean?

Accepted Answer

Build once per day, sometime between 6 AM and 8 AM, only on weekdays

Answer

Build every hour between 6 and 8 on weekdays

Answer

Build 6 to 8 times per day on weekdays

Answer

Build at 6:00 AM and 8:00 AM on weekdays

Question 4

What Jenkins feature prevents a new build from being triggered if the same job is already building?

Accepted Answer

Do not allow concurrent builds

Answer

Quiet Period

Answer

Throttle Concurrent Builds plugin

Answer

Build Queue limit

Question 5

Which Jenkins plugin enables triggering builds based on file system changes rather than SCM commits?

Accepted Answer

FSTrigger Plugin

Answer

File Watcher Plugin

Answer

Directory Monitor Plugin

Answer

LocalSCM Plugin

Question 6

When the Generic Webhook Trigger Plugin is used in Jenkins, how is the correct job identified from an incoming webhook payload?

Accepted Answer

By matching a token parameter in the webhook URL

Answer

By the repository URL in the payload

Answer

By the branch name in the payload

Answer

By the sender's IP address

Question 7

What is a key difference between 'Build periodically' and 'Poll SCM' triggers in Jenkins?

Accepted Answer

Build periodically always runs at the scheduled time; Poll SCM only runs if changes are detected

Answer

Poll SCM runs more frequently than Build periodically

Answer

Build periodically requires a plugin; Poll SCM is built-in

Answer

They are functionally identical