Exam 200-301 topic 1 question 274 discussion

Did anyone notice that all the wrong answers have exclamation marks (!!) in the CLI?

The key is " without interruption to traffic flow between other PCs". Thus the trunk port must be allowed for the multiple VLAN`s for the seamless traffic flow.

B. SW4 interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 14,108 SW11# interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 14,108 !! interface Gi0/1 switchport mode trunk switchport trunk allowed vlan 14,108 SW9# interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 14

C is incorrect. First off, it's missing configuration on SW11, port Gi0/2 to allow VL14.

B is correct

B is correct this is an annoying question also

B is correct. SW11 is unconfigured, so their ports (Gi0/2 and Gi0/1) need to be configured as trunks to PC2 can ping PC7. Also, it needs allowing the VLAN 14 fot both interfaces (Gi0/2 and Gi0/1). Alternative C only configures the Gi0/1 interface, not both.

B is the answer, you cannot turn one side trunk only so C is wrong

B is correct, A, C and D lacks configuration of VLAN and Trunk on S4, S11 and S9

C is wrong. The same link between SW11 and SW9 has only VLAN 14 allowed on one side and only VLAN 108 on the other. In this case, none of them pass. This configuration doesn't make sense: SW11# interface Gi0/1 switchport mode trunk switchport trunk allowed vlan 14 SW9# interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 108

Based on the exhibit and the given information, the correct configuration that establishes a successful ping from PC2 to PC7 without interruption to traffic flow between other PCs is: B. SW4 interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 14,108 SW11 interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 14,108 ! interface Gi0/1 switchport mode trunk switchport trunk allowed vlan 14,108 SW9 interface Gi0/2 switchport mode trunk switchport trunk allowed vlan 14 In this configuration, SW4 and SW11 are trunked with allowed VLANs 14 and 108, while SW9 is trunked with only VLAN 14 allowed. This allows traffic to flow between PC2 and PC7, which belong to VLANs 14 and 108 respectively. The other VLANs will also continue to function without interruption.

C doesnt allow all two VLANs between SW4 and SW11 which B does.

It is B

C answer is incorrect, missing configuration for Gi0/2 interface on SW11

just look on SW 4 configuration ( switchport trunk allowed vlan 14,108 )

correct answer is B, don't forget to always check the discussion even if you think the answer is obvious.

Correct ans is: B Because look carefully, for G0/2 of S9, allowed VLAN is 108 not 14.