Exam 300-135 topic 7 question 66 discussion

Actual exam question from Cisco's 300-135

Question #: 66
Topic #: 7

Refer to the exhibit. PC A is able to ping its gateway but is unable to access resources in VLAN 200. Which statement describes the root cause?

A. Interface VLAN 300 needs also to be configured on Switch B.
B. An ACL is needed on Switch A Gi0/1 to allow traffic to pass.
C. The subnet mask for interface VLAN 300 does not match the subnet mask for PC A.
D. There needs to be a port channel between Switch A and Switch B to communicate properly.

Show Suggested Answer

Suggested Answer: C 🗳️

by tio1 at Oct. 26, 2019, 1:25 p.m.

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tio1

5 years, 8 months ago

sorry, 192.168.1.x or 192.168.2.x range of ip. with this placement they are able to communicate

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C is correct, but in practice it would work, even with those subnet masks pca and vlan 300 are able to communicate. to make the question also in practice stick, it would have been ip for vlan 300 with ip in the 192.168.1.x or 192.168.1.x range of ip. with this placement they are able to communicate

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diegonamaste

5 years, 6 months ago

Within subnet mask 255.255.252.0 the range IP is from 192.168.0.1 to 192.168.3.255, so switch A thinks the entire range IP 192.168.2.x is its own IP. C is correct. the subnet mask must be fixed to 255.255.255.0

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