An OSPF router should participate in a maximum of how many areas?

The correct answer is C. 3. Cisco recommends that an OSPF router participate in a maximum of 3 areas. Each area requires its own Link State Database (LSDB) and separate SPF (Shortest Path First) calculations. Belonging to too many areas overloads the router's CPU and memory. The common design is Area 0…

Advanced Addressing and Routing Solutions

Question

Options

How the community answered

(19 responses)

A
5% (1)
B
5% (1)
C
89% (17)

Explanation

Cisco recommends that an OSPF router participate in a maximum of 3 areas. Each area requires its own Link State Database (LSDB) and separate SPF (Shortest Path First) calculations. Belonging to too many areas overloads the router's CPU and memory. The common design is Area 0 (backbone) plus up to two additional areas, totaling 3. While the protocol doesn't enforce a hard limit, exceeding 3 areas per router is considered a design anti-pattern in Cisco best practices.

Topics

#OSPF#area design#multi-area best practice#routing protocol

Community Discussion

No community discussion yet for this question.

Full 300-320 Practice