350-501 Networking Practice Question
A service provider is designing an OSPF network for MPLS-TE. Which two OSPF LSA types are used to advertise Traffic Engineering information? (Choose two.)
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
✓
LSA Type 10 (Area-local Opaque)
OSPF uses opaque LSAs to carry TE information. Type 10 (area-local) and Type 11 (AS-scoped) opaque LSAs are used for TE. Type 9 is link-local.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
LSA Type 1 (Router)
Why it's wrong here
Router LSA does not carry TE.
- ✓
LSA Type 10 (Area-local Opaque)
Why this is correct
Type 10 carries TE information within an area.
- ✗
LSA Type 9 (Link-local Opaque)
Why it's wrong here
Type 9 is link-local, not used for TE across the domain.
- ✗
LSA Type 4 (ASBR Summary)
Why it's wrong here
ASBR Summary LSA does not carry TE.
- ✓
LSA Type 11 (AS-scoped Opaque)
Why this is correct
Type 11 carries TE information across the AS.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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