Scenario:
You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation. The customer has disabled your access to the show runningconfig command.
How old is the Type 4 LSA from Router 3 for area 1 on the router R5 based on the output you have examined?
A. 1858
B. 1601
C. 600
D. 1569
Its a little tricky question…
In the test Area 2 is a stub area. Therefore there is no Type 4 LSAs (Summary ASBR LSA) in that area. These Type 4 LSAs from other areas are being converted on the ABR (Router 4) of area 2 to Type 3 LSAs (Summary LSA).
I dont agree with you
I have simulate this network on GNS3, and when I entered the command:
show ip ospf database asbr-summary
I saw two asbr-summary LSAs, one concerns the area 0 and the other concerns area 1
the question was asked to check the area ones, and the LSA ID is 4.4.4.4
In the R5 we had to seek the 4.4.4.4 not the 3.3.3.3
Fortunately 3.3.3.3 and 4.4.4.4 have the same age: 1858.
Make the simulation on GNS3
On R3 enter the command: show ip ospf database asbr-summary