Alcatel-Lucent NRS I – Interior Routing Protocols and High Availability — Question 27

In which of the following types of areas does an OSPF router not set the E bit in its Type 1 LSA?

Answer options

• A. Not so stubby area
• B. Stub area
• C. Backbone area
• D. Normal area

Correct answer: B

Explanation

The correct answer is B, as stub areas do not allow external routes and therefore the E bit is not set in their Type 1 LSAs. In contrast, not so stubby areas, backbone areas, and normal areas can include external routes, which is why the E bit is typically set in those cases.