pls help in a routing question

[sharaf_sa]

RTA# show ip route ospf

O IA 6.0.0.0/8 [110/65] via 5.0.0.1, 00:00:28, Serial2/1/0

O* E2 0.0.0.0/0 [110/1] via 5.0.0.2, 00:00:16, Serial2/1/0

Refer to the exhibit. On the basis of the information presented, which statement is true?

A - A default route is configured on the local router.

B - Network 6.0.0.0/8 was learned from an OSPF neighbor within the area.

C - OSPF router 5.0.0.2 is an ABR.

D - The default route is learned from an OSPF neighbor.

Answer: B

-----------

I didn't got the idea of the answer, so anyone can help?

[mohammedmahmoud]

hi,

Answer B is correct as the "O IA" means Inter Area OSPF route --> route learned within the same area.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.

[ankbhasi]

Hi Mahmoud,

AFAIK O IA are inter area routes which are originated from other areas and O are intra area routes which are generated from within area.

I believe answer B is correct because 6.0.0.0/8 is learned from neighbor which is within the area and I believe its learned via 5.x.x.x which may be its neighbor and may be in same area.

Regards,

Ankur

*Pls rate all helpfull post

[mohammedmahmoud]

Hi Ankur,

You are absolutely right "O IA" means Inter Area not Intra Area, i truly apologies for this newbie mistake :), and i think that your explaination is definitely right.

HTH,

Mohammed Mahmoud.

[sharaf_sa]

Hi Ankur,

thanks a lot for your answer.any way, it seems that B is the correct answer even though it not clear that 5.x.x.x is within the area.

sharaf

[JanicFerra]

Hi Guys.

I have a doubt, why "D" isnt correct?

Thanks in advance