350-501 MPLS and Segment Routing Practice Question
Which three statements accurately describe the benefits of Segment Routing over RSVP-TE for traffic engineering? (Choose three.)
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
✓
It does not require a signaling protocol like RSVP.
SR-TE reduces state by not requiring per-LSP state on intermediate nodes, supports distributed intelligence via IGP, and does not require a separate protocol like RSVP. However, SR-TE still requires CSPF for path computation, and RSVP-TE also supports fast reroute.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
It does not require a signaling protocol like RSVP.
Why this is correct
Correct: SR uses IGP, no RSVP needed.
- ✗
It provides faster convergence than RSVP-TE FRR.
Why it's wrong here
FRR convergence can be similar; not a distinguishing benefit.
- ✓
It uses the IGP to distribute topology and segment information, enabling distributed intelligence.
Why this is correct
Correct: IGP distributes SIDs.
- ✓
No per-LSP state is maintained on transit routers.
Why this is correct
Correct: Only the headend maintains state.
- ✗
It eliminates the need for CSPF path computation.
Why it's wrong here
CSPF may still be used for optimal path selection.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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