Nokia Certified Network Associate – Data Center — Question 36

Which of the following statements about the Path Computation Element (PCE) is FALSE?

Answer options

• A. The PCE can obtain topology and traffic-engineering information from the network using either a link-state IGP or BGP-LS.
• B. A stateful PCE proactively monitors all the existing LSPs and triggers the necessary repairs and re-optimizations.
• C. A stateless PCE can calculate cross-area traffic-engineering-constrained LSP paths.
• D. A stateful PCE can allow LSPs to reserve bandwidth.

Correct answer: C

Explanation

Option C is correct because a stateless PCE does not maintain any state information about the LSPs, making it unable to calculate cross-area traffic-engineering-constrained LSP paths. The other options accurately describe the capabilities of PCEs, with A and B correctly outlining the functionalities of both stateful and stateless PCEs, while D highlights the bandwidth reservation ability of stateful PCEs.