Exam 300-410 topic 1 question 342 discussion

Actual exam question from Cisco's 300-410

Question #: 342
Topic #: 1

Refer to the exhibit. A network engineer is provisioning end-to-end traffic service for two different enterprise networks with these requirements:
• The OSPF process must differ between customers on HQ and Branch office routers, and adjacencies should come up instantly.
• The enterprise networks are connected with overtapping networks between HQ and a Branch office.

Which configuration meets the requirements for a customer site?

A. ISP(config-if)#int f1/0 -
ISP(config-if)#ip vrf forwarding EA
ISP(config-if)#description TO->EA2_Branch
ISP(config-if)#ip add 172.16.200.2 255.255.255.0

ISP(config-if)#no shut -
B. ISP(config-vrf)#int f0/0 -
ISP(config-if)#ip vrf forwarding EB
ISP(config-if)#description TO->EB1_Branch
ISP(config-if)#ip add 172.16.100.2 255.255.255.0

ISP(config-if)#no shut -
C. ISP(config)#int f2/0 -
ISP(config-if)#ip vrf forwarding EA
ISP(config-if)#description TO->EA1_HQ
ISP(config-if)#ip address 172.16.100.2 255.255.255.0

ISP(config-if)#no shut -
D. ISP(config-if)#int f3/0 -
ISP(config-if)#ip vrf forwarding EA
ISP(config-if)#description TO->EA2_Branch
ISP(config-if)#ip address 172.16.200.2 255.255.255.0
ISP(config-if)#no shut

Show Suggested Answer

Suggested Answer: A 🗳️

by DUBC89x at Dec. 7, 2022, 12:27 a.m.

Comments

Submit Cancel

inteldarvid

2 years ago

Selected Answer: A

A correct

upvoted 1 times

...

Almylle

2 years, 1 month ago

Selected Answer: A

A is correct, the other alternatives all have the worng ip vrf forwarding for the interfaces.

upvoted 4 times

...

6dd4aa0

2 years, 3 months ago

A is correct. Took me a long while to figure out. The hint is at the OSPF commands. Followed by, the figure where it shows the two OSPF regions must tally with VRF. VRF EA points to OSPF 100 and VRF EB points to OSPF 200. Int FA0/0 and Int FA1/0 points to VRF EA, based on the OSPF 100. Int FA2/0 and Int FA3/0 points to VRF EB, based on the OSPF 200.

upvoted 4 times

d740f62

1 year, 3 months ago

Awesome

upvoted 1 times

...

ellen_AA

2 years, 6 months ago

All ISP interfaces point to the wrong VRF, except A

upvoted 3 times

...

DUBC89x

2 years, 8 months ago

I think this is not the complete picture.

upvoted 1 times

[Removed]

2 years, 7 months ago

The answer appears to be correct. Look at the rest of the interface assignments compared to the VRF they are in. A is the only one that matches interface to the proper VRF.

upvoted 2 times

...