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CCNA® Cisco Certified Network Associate: Study Guide, Seventh Edition by Todd Lammle

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Answers to Review Questions

1. B. Standard IP access lists use the numbers 1–99 and 1300–1999 and filter based on source IP address only. Option C is incorrect because the mask must be in wildcard format.

2. C. 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.

3. C. Using a named access list just replaces the number used when applying the list to the router’s interface. ip access-group Blocksales in is correct.

4. B, D. The wildcard 0.0.0.0 tells the router to match all four octets. This wildcard format ...

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