Nokia Certified Network Associate – Data Center — Question 17

Which of the following is an advantage of enabling label stack reduction for a CSPF-calculated path, as compared to using plain CSPF?

Answer options

• A. The number of hops included in the end-to-end path is reduced.
• B. The path calculation can be delegated to an external path computation element (PCE).
• C. There is a larger list of traffic-engineering constraint types that can be imposed on the LSP path.
• D. The routers in the calculated path can take advantage of ECMP to better distribute the traffic load.

Correct answer: C

Explanation

The correct answer, C, is accurate because enabling label stack reduction allows for a wider variety of traffic-engineering constraints to be applied, enhancing path optimization. Options A, B, and D do not directly relate to the benefits of label stack reduction; reducing hops, delegating path calculation, and utilizing ECMP are not specific advantages of this feature.