Alcatel-Lucent NRS I – Interior Routing Protocols and High Availability — Question 2

Which OSPFv3 LSA type is generated by an ABR to advertise prefixes from one area to another?

Answer options

• A. AS External
• B. Intra-Area Prefix
• C. Inter-Area Router
• D. Inter-Area Prefix

Correct answer: A

Explanation

The correct answer is A, AS External, as this LSA type is specifically used by ABRs to advertise routes from one OSPF area to another. The other options do not pertain to the function of advertising prefixes between areas; Intra-Area Prefix refers to prefixes within the same area, Inter-Area Router describes routers that connect areas, and Inter-Area Prefix is not the correct term for this function.