The default port on which Jenkins starts is [22] recheck a)8080 b)80 c)9080 d)None of the above

Break Down the Problem

1. Identify the commonly used default port for Jenkins.
2. Review the provided options to see which one matches the default port.

Relevant Concepts

• Jenkins is a widely used open-source automation server typically employed for continuous integration and continuous delivery (CI/CD).

Analysis and Detail

1. By default, Jenkins runs on port 8080 when installed via most package managers or a WAR file.
2. Let's inspect the options:
   • a) 8080: This is the known default port for Jenkins.
   • b) 80: This is the default HTTP port.
   • c) 9080: This is not the default Jenkins port.
   • d) None of the above: This suggests that none of the options are correct.

Verify and Summarize

The default port for Jenkins is confirmed to be 8080.

Final Answer

The correct answer is a) 8080.