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 / guest
Answer:: A
This will block ftp traffic since ftp uses ports 20 and 21.
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When you use the Cisco IOS command show configuration on a router which part of the output shows the specific conferred IP addresses and shored masks? A. the IP host table B. the interfaces output C. each section of the output D. the global configuration statements E. the section under the autonomous system number
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Explain what is the default behavior of access-list?
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CCNA 
