Nokia Certified Network Associate – Data Center — Question 14

Which of the following is NOT an advantage of using a PCE for the computation of TE-constrained LSP paths, as compared to using CSPF locally on the PE router?

Answer options

• A. The ability to create cross-area TE-constrained LSP paths
• B. The ability to create LSP paths with bandwidth reservation
• C. The ability to create LSPs with primary and secondary paths
• D. The ability to ensure that some LSP paths are disjoint

Correct answer: D

Explanation

The correct answer is D because using a PCE does not inherently ensure that LSP paths will be disjoint, which can be achieved through other means. Options A, B, and C are all advantages of using a PCE, as it allows for more complex path computations across multiple areas, bandwidth allocation, and the establishment of backup paths.