Exam 350-501 topic 1 question 102 discussion

Actual exam question from Cisco's 350-501

Question #: 102
Topic #: 1

Refer to the exhibit. Router 1 and router 2 are running IBGP, and router 2 and router 3 are running OSPF Area 0. Router 1 is advertising loopback interfaces Lo 0 and Lo 2, and router 2 is redistributing BGP into OSPF Area 0. Which configuration must an administrator apply so that router 2 uses a route map to redistribute only the internal route from Lo 2?

A. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.22/32 router bgp 100 bgp redistribute-internal route-map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric 100 metric-type 1 subnets route-map BGP-To-OSPF
B. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24 router bgp 100 bgp redistribute-static route-map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric-type 2 route-map BGP-To-OSPF
C. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24 router map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric 100 metric-type 1 subnet route-map BGP-To-OSPF
D. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24 router map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 route-map BGP-To-OSPF

Show Suggested Answer

Suggested Answer: A 🗳️

by sherlock0 at Dec. 2, 2021, 1 p.m.

Comments

Submit Cancel

sherlock0

Highly Voted 3 years, 8 months ago

This question is shit you have to read the ans 10 times

upvoted 8 times

...

rans3001

Most Recent 1 year ago

Selected Answer: A

Whenever you redistribute from BGP to something else, BGP will only release externally learned routes. Even if you try to match things specifically with a route-map or the “match internal external” commands, BGP simply will not let them be redistributed. In order to allow BGP to redistribute internal routes, you must explicitly command BGP to do it using the bgp redistribute internal command.

upvoted 2 times

...

thejag

2 years, 5 months ago

A - bgp redistribute-internal

upvoted 2 times

...

mohdema

2 years, 9 months ago

Selected Answer: A

A is the only one with a /32, it's a no brainer A. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.22/32 router bgp 100 bgp redistribute-internal route-map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric 100 metric-type 1 subnets route-map BGP-To-OSPF B. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24 router bgp 100 bgp redistribute-static route-map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric-type 2 route-map BGP-To-OSPF C. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24 router map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric 100 metric-type 1 subnet route-map BGP-To-OSPF D. ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.0/24 router map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 route-map BGP-To-OSPF

upvoted 2 times

...

Djohan23

2 years, 10 months ago

ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.22/32 router bgp 100 bgp redistribute-internal route-map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric 100 metric-type 1 subnets route-map BGP-To-OSPF

upvoted 1 times

...

freddycisco

3 years, 6 months ago

A ip prefix-list BGP-to-ospf seq 5 permit 22.22.22.22/32 router bgp 100 bgp redistribute-internal route-map BGP-To-OSPF permit 10 match ip address prefix-list BGP-to-ospf router ospf 1 redistribute bgp 100 metric 100 metric-type 1 subnets route-map BGP-To- https://community.cisco.com/t5/networking-documents/redistributing-internal-bgp-routes-into-ospf/ta-p/3111243

upvoted 3 times

...