Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 231

What is a characteristic of prefix segment identifier?

Answer options

• A. It contains the interface address of the device per each link.
• B. It contains a router to a neighbor.
• C. It is locally unique.
• D. It is globally unique.

Correct answer: D

Explanation

The correct answer is D because a prefix segment identifier is designed to be globally unique to avoid any conflicts in a wide area. Option A is incorrect as it refers to interface addresses, which are not the defining characteristic of prefix segment identifiers. Options B and C are also incorrect since they do not accurately describe the global uniqueness of the identifier.