Q6. You are configuring an extended IP access-list. You want to permit ip traffic from the host 188.8.131.52. What is the correct syntax?
A. access-list 102 permit ip 184.108.40.206 0.0.255.255 any
B. access-list 102 permit ip host 220.127.116.11 any
C. access-list 102 permit ip any 18.104.22.168
D. access-list 102 permit ip 22.214.171.124 0.0.255.255
Correct Answer: B
Wild card masking:
Wild card masking is used to permit or deny a group of addresses. For example, if we have a source address 126.96.36.199 and want all the hosts on the last octet to be considered, we use a wild card mask, 188.8.131.52.
Host 184.108.40.206 is same as 220.127.116.11 with a wild card mask of 0.0.0.0, considers only specified IP.
Any is equivalent to saying 0.0.0.0 with a wild card mask of 255.255.255.255. This means none of the bits really matter. All IP addresses need to be considered for meeting the criteria.
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