350-501 Automation and Quality of Services Practice Question
An SP uses SR-PCE for traffic engineering. Which protocol does the SR-PCE use to communicate path computation requests and responses with path computation clients (PCCs)?
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
✓
PCEP
PCEP (Path Computation Element Protocol) is used between PCCs (e.g., routers) and a PCE (e.g., SR-PCE) for path computation requests and responses.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
BGP-LS
Why it's wrong here
BGP-LS is used to advertise link-state information to the PCE, not for path computation requests.
- ✗
NETCONF
Why it's wrong here
NETCONF is for configuration, not path computation.
- ✓
PCEP
Why this is correct
PCEP is the standard protocol for path computation.
- ✗
RESTCONF
Why it's wrong here
RESTCONF is used for configuration, not path computation.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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