350-501 MPLS and Segment Routing Practice Question
An engineer is configuring an MPLS Traffic Engineering tunnel using RSVP-TE. The tunnel is intended to carry voice traffic with strict delay requirements. Which RSVP-TE object should be used to enforce a maximum delay path?
⚠ Common exam trap
Cisco often tests the distinction between path selection tools (like metric types) and path recording or protection mechanisms, leading candidates to confuse 'record-route' or 'fast-reroute' with delay enforcement.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the 'path-option' with 'metric delay' under the tunnel
The 'path-option with metric delay' command instructs RSVP-TE to compute a path that minimizes cumulative delay rather than IGP cost or hop count. This directly enforces a maximum delay constraint for voice traffic by selecting the path with the lowest measured or configured delay metric across the MPLS network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable 'record-route' on the tunnel
Why it's wrong here
Record-route only records the actual path taken.
- ✗
Configure 'fast-reroute' protection
Why it's wrong here
Fast-reroute is for link/node protection, not path optimization.
- ✗
Specify an explicit-path (ERO) manually
Why it's wrong here
Manual ERO does not dynamically enforce delay constraints.
- ✓
Use the 'path-option' with 'metric delay' under the tunnel
Why this is correct
This allows CSPF to use delay as the metric for path computation.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-501 exam.