You need to create an access list that will prevent hosts in the network range of 192.168.160.0 to 192.168.191.0. Which of the following lists will you use?

Question

The range of 192.168.160.0 to 192.168.191.0 is a block size of 32. The network address is 192.168.160.0 and the mask would be 255.255.224.0, which for an access list must be a wildcard format of 0.0.31.255. The 31 is used for a block size of 32. The wildcard is always one less than the block size.

Accepted Answer

access-list 10 deny 192.168.160.0 0.0.191.255

Answer

access-list 10 deny 192.168.160.0 255.255.224.0

Answer

access-list 10 deny 192.168.160.0 0.0.31.255

Answer

access-list 10 deny 192.168.0.0 0.0.31.255

Question 973: You need to create an access list that will prevent hosts in the network range of 192.168.160.0 to 192.168.191.0. Which of the following lists will you use?