Exam 350-401 topic 1 question 553 discussion

C is correct. eliminate A and B directly because of the show command then eliminate D cause after enabling VRF on an interface the IP address needs to be reconfigured

C A. R1#ip routing R1#(config)#ip vrf 100 R1#(config-vrf)#rd 100:1 R1#(config-vrf)# address family ipv4 R1(config)#interface Gi0/2 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#show ip route B. R1#ip routing R1#(config)#ip vrf 100 R1(config)#interface Gi0/2 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#showip route C. R1#ip routing R1#(config)#ip vrf 100 R1(config)#interface Gi0/2 R1(config-if)#ip vrf forwarding 100 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#show ip vrf D. R1#ip routing R1#(config)#ip vrf 100 R1(config)#interface Gi0/2 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#show ip vrf

Guys, one trick I learned from VRF Questions and answers and from Labs.. that in VRF we always give IP address after the VRF command, I mean later command of VRF should be IP address. If you give the IP address before and then give VRF, then IP addresses will get removed.

One of the discarding tricks is the command needed to verify the VRF. I remember that show ip vrf command is the one we need in these cases.

C is correct because it's the only option where they assigned the VRF to an interface

A. R1#ip routing R1#(config)#ip vrf 100 R1#(config-vrf)#rd 100:1 R1#(config-vrf)# address family ipv4 ! R1(config)#interface Gi0/2 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#show ip route B. R1#ip routing R1#(config)#ip vrf 100 ! R1(config)#interface Gi0/2 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#showip route C. R1#ip routing R1#(config)#ip vrf 100 ! R1(config)#interface Gi0/2 R1(config-if)#ip vrf forwarding 100 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#show ip vrf D. R1#ip routing R1#(config)#ip vrf 100 ! R1(config)#interface Gi0/2 R1(config-if)#ip address 10.0.1.1 255.255.255.0 R1#show ip vrf

cisco_R3#show ip vrf Name Default RD Interfaces RED 1:1 cust_1 11:11 Et0/0.20 cust_2 22:22 Et0/0.30 cisco_R3#show runn int Et0/0.20 ! interface Ethernet0/0.20 encapsulation dot1Q 20 ip vrf forwarding cust_1 ip address 192.168.1.200 255.255.255.0 secondary ip address 192.168.1.1 255.255.255.0 end cisco_R3#show runn | s vrf ! ip vrf cust_1 rd 11:11 import ipv4 unicast map cust_2_to_cust_1

C looks somewhat OK but all options are weird.

correct, the only that contains "vrf fowarding"

Answer is C.