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352-001 · Question #159
352-001 Question #159: Real Exam Question with Answer & Explanation
The correct answer is A: MPLS-TP is a newer packet transport technology that replaces SONET/SDH.. MPLS-TP is a connection-oriented packet transport standard replacing SONET/SDH, featuring extended OAM capabilities and using IANA-assigned label 13 (GAL) for in-band OAM identification.
Question
You have been hired by a startup company to provide optical services using MPLS-TP. Which three options describe reasons to use the MPLS-TP standard in your design? (Choose three.)
Options
- AMPLS-TP is a newer packet transport technology that replaces SONET/SDH.
- BMPLS-TP includes extensions to native MPLS OAM for fault detection, monitoring, and propagation.
- CMPLS-TP requires a routing protocol.
- DMPLS-TP uses an IANA assigned label 13 for OAM.
- EMPLS-TP uses Ethernet Y.1731 OAM.
Explanation
MPLS-TP is a connection-oriented packet transport standard replacing SONET/SDH, featuring extended OAM capabilities and using IANA-assigned label 13 (GAL) for in-band OAM identification.
Common mistakes.
- C. MPLS-TP is specifically designed to operate without a dynamic routing or signaling control plane - static provisioning is one of its key differentiators from native MPLS, making this statement false.
- E. MPLS-TP uses ITU-T G.8113 OAM, not Ethernet Y.1731; Y.1731 is an Ethernet-specific OAM standard and is not part of the MPLS-TP specification.
Concept tested. MPLS-TP transport standard OAM features and GAL label
Reference. https://www.rfc-editor.org/rfc/rfc5921
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