Answer:: A This will block ftp traffic since ftp uses ports 20 and 21.

What do the following statements in an extended access list

accomplish?

access-list 101 deny TCP 172.16.4.0 0.0.0.255 172.16.3.0
0.0.0.255 eq 21

access-list 101 deny TCP 172.16.4.0 0.0.0.255 172.16.3.0
0.0.0.255 eq 20

access-list 101 permit TCP 172.16.4.0 0.0.0.255 0.0.0.0
255.255.255.255

A. This will block ftp traffic.

B. This will block http traffic.

C. This will permit ftp traffic.

D. This will permit tftp traffic.

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Answer:: A

This will block ftp traffic since ftp uses ports 20 and 21.

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