Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 461

Which issue causes slips on a PRI?

Answer options

• A. incorrect clock source
• B. incorrect encapsulation
• C. incorrectly configured time zone
• D. change in the line code

Correct answer: A

Explanation

The correct answer is A because slips on a PRI typically occur when there is a mismatch in the clock source, leading to synchronization issues. Options B, C, and D do not directly contribute to slip occurrences; encapsulation types and time zone configurations do not affect the timing of the signals on the PRI, and changes in line code relate more to how the data is transmitted rather than synchronization.