Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 139

What is a constraint of Cisco MPLS TE tunnel configurations?

Answer options

• A. QoS-aware tunneling is not supported.
• B. Tunnels cannot be configured over IP unnumbered links.
• C. With ISIS as an IGP, only older-style metrics are used.
• D. Tunnels cannot span multiple OSPF areas.

Correct answer: D

Explanation

The correct answer is D because MPLS TE tunnels are restricted from extending across different OSPF areas, which could complicate routing. Options A, B, and C do not represent constraints specific to MPLS TE tunnel configurations, as they address different aspects of tunneling and routing protocols.