What does the "3" in Junos version 14.2R3.2 represent?

A

In this example, we dissect the format of the software release number to show what it indicates. The generalized format is as follows:

Given the format of -

-> m.nZb.s

The software release number 17.2R1.13, for example, maps to this format as follows:

-> m is the main release number of the product, for example, 17.

-> n is the minor release number of the product, for example, 2.

-> Z is the type of software release, for example, R for FRS or maintenance release.

-> b is the build number of the product, for example, 1, indicating the FRS rather than a maintenance release..

-> s is the spin number of the product, for example, 13.

https://www.juniper.net/documentation/en_US/junos/topics/topic-map/junos-os-installation-packages.html

The "3" in Junos version 14.2R3.2 represents a service build number.

In Junos OS, a version number is composed of four parts separated by periods: major release number, minor release number, service release number, and build number.

• The major release number is incremented for significant changes or new features in the software. It represents a major version of the Junos OS.
• The minor release number is incremented for minor changes, such as bug fixes, security updates, or support for new hardware platforms. It represents a minor version of the Junos OS.
• The service release number is incremented for maintenance releases, which typically include bug fixes and security updates. It represents a maintenance version of the Junos OS.
• The build number is incremented for internal builds of the software, and it is not typically used for end-user releases.

In the version number 14.2R3.2, "14" is the major release number, "2" is the minor release number, "R3" is the service release number, and "2" is the build number. The "R" in "R3" indicates that this is a release for maintenance purposes, and the "3" indicates that it is the third service release for the 14.2 version of the Junos OS.

Therefore, the correct answer to the exam question is A. A service build number.