Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 303

Which capability does the MPLS TE FRR facility backup protection method provide?

Answer options

• A. creating a bypass LSP for each protected LSP at each point of local repair
• B. assigning a backup TE LSP tunnel to the protected node at the headend of the protected TE LSP
• C. leveraging label stacking to protect selected TE LSPs using a single backup TE LSP
• D. defining the set of characteristics for the backup TE LSP

Correct answer: C

Explanation

The correct answer is C because MPLS TE FRR uses label stacking to enable a single backup TE LSP to protect multiple selected TE LSPs. Options A and B describe methods that do not utilize label stacking, while option D only addresses the characteristics of the backup TE LSP without mentioning the protection mechanism.