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Friday, June 27, 2008

Questions

According to the following access list, what would happen to a packet coming from the source address 192.168.5.67?

access-list 50 permit 192.168.5.16 0.0.0.15
access-list 50 permit 192.168.5.32 0.0.0.15
access-list 50 permit 192.168.5.48 0.0.0.7
access-list 50 permit 192.168.5.0 0.0.0.0

A. The packet would be denied because of the implicit deny statement.

B. The packet would be permitted because of the permit 192.168.5.32 0.0.0.15 statement.

C. The packet would be permitted because of the permit 192.168.5.48 0.0.0.7 statement.

D. The packet would be permitted because of the permit 192.168.5.0 0.0.0.0 statement.

A. The packet would be denied because of the implicit deny statement at the end of the access list. Answer B is incorrect because the first permit statement only matches the range of addresses from 192.168.5.16-31. Answer C is incorrect because the third permit statement only matches the range of addresses from 192.168.5.48-63. Answer D is incorrect because the last permit statement only matches the 192.168.5.0 network address.

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