350-501 Networking Practice Question
An SP network uses OSPF with RSVP-TE for traffic engineering. Which OSPF extension is required to advertise TE link parameters such as maximum reservable bandwidth?
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
✓
OSPF Type 10 Opaque LSAs
OSPF TE extensions are defined in RFC 3630, which introduces the Opaque LSA (Type 9, 10, 11). Specifically, Type 10 Opaque LSAs carry TE information. The TE LSA is carried in an Opaque LSA of area scope (Type 10).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
OSPF Type 7 LSAs
Why it's wrong here
Type 7 are NSSA external LSAs.
- ✗
OSPF Type 11 Opaque LSAs
Why it's wrong here
Type 11 is for external scope, but TE uses area scope (Type 10).
- ✓
OSPF Type 10 Opaque LSAs
Why this is correct
Correct. Type 10 Opaque LSAs carry TE information.
- ✗
OSPF Type 5 LSAs
Why it's wrong here
Type 5 are external LSAs, not for TE.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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