H12-821_V1.0 Exam Dumps | On an OSPF network, all OSPF routers generate Router LSAs. If the E bit in a Router LSA is set to 1,

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Question 107/140

On an OSPF network, all OSPF routers generate Router LSAs. If the E bit in a Router LSA is set to 1, the router that generates this LSA is a/an ______.

A. ABR

B. IR

C. ASBR

D. DR

Correct Answer: C

Comprehensive and Detailed In-Depth Explanation:
* Router LSAs (Type 1 LSAs) are generated by every OSPF router to describe its directly connected links and their states.
* The E (External) bit in the Options field of a Type 1 LSA indicates whether the router is acting as an Autonomous System Boundary Router (ASBR).
* If E = 1, it means that the router is an ASBR, which means it is redistributing external routes (e.g., BGP, static routes) into OSPF.
* IR (Internal Router), ABR (Area Border Router), and DR (Designated Router) do not set the E-bit in their Router LSA unless they are also ASBRs.
# Reference: Huawei HCIA-Datacom Study Guide, OSPF Router Types and LSA Options.

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