What does Jenkins do after activating "Prepare for Shutdown" from "Manage Jenkins"?

• A.None of the above.
• B.Cancel the effect of the "quiet-down" command if Jenkins is already in Quiet Down mode.
• C.Wait for existing builds to complete and then restart Jenkins.
• D.Wait for existing builds to complete and then shut down Jenkins.

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Which are commonly tuned Items to run Jenkins or CloudBees Jenkins Distribution Choose 2 answers

• A.Operating system buffer cache size and Iimits on open files.
• B.Database query performance parameters.
• C.Java memory heap size and garbage collector for heap.
• D.Operating system limits on network packet size and interrupt latency.
• E.Operating system limits on open files and forked processes.

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A Freestyle job is configured to execute concurrent builds, and to only build on a specific agent (agent A) that has 4 execution. You observe that 2 instances of the Job are currently building while several others are waiting in the build queue. Which of the following could explain why the builds are waiting in the build queue?

• A.Changes were made to this Job's conjuration while this Job had builds in the build queue.
• B.Each build in the build queue must be manually attached to an available executor.
• C.The "Execute concurrent builds if necessary" option in the Job configuration has reached its user-defined maximum.
• D.There are not enough Idle executors available on agent A.

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Which of the following are true when using environment directives In a Declarative Pipelined?

• A.If an environment variable Is enclosed In double quotes, the Pipeline DSL dereferences the variable on the master's JVM and passes the calculated string to the sh or bat step; If the environment variable Is enclosed In single quotes, the name of the environment variable Itself Is passed to the "sh" or "bat" step and the shell Interpreter on the agent dereferences the variable.
• B.If an environment variable b enclosed In single quotes, the Pipeline DSL dereferences the variable on the master's JVM and passes the calculated string to the sh or bat step; If the environment variable Is enclosed In double quotes, the name of the environment variable Itself Is passed to the "sh" or "baT step and the she! Interpreter on the agent dereferences the variable.
• C.An environment variable can be specified globally (to apply to all steps In the pipeline), for an individual step, or for one or more specified steps In the Pipeline.
• D.A Declarative Pipeline can use environment variables defined in Jenkins itself (such as BUILD.NUMBER and JENKINS_URL), environment variables defined in an installed plugin (such as GIT_COMMIT or GIT.BRANCH, defined m the Git plugin), or environment variables that are coded as directives In the Pipeline Itself: the semantics are identical for all environment variables.

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How can you set the values of a parameterized build on the command line using the Jenkins CLI (jenkins-cli.jar)?

• A.The Jenkins CL1 can only start builds without parameters.
• B.Append --parameter-KEY-Value to the command line.
• C.Create a file containing KEY=Value pairs (one per line) and use the --parameters file command line argument.
• D.Append -p KEY=Value to the command line.
• E.Append #KEY-Value to the command line.
• F.Set the jenkins_parameters environment variable.

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