21.A network technician enters the following line into the router.

3COM思科华为网络技术学院 www.3comcom.com

Tidmore1(config)# access-list 106 deny tcp 192.168.254.0 0.0.0.255 any eq www

What is the effect of this configuration?

3COM思科华为网络技术学院 www.3comcom.com

3COM华为.网络技术学院 http://www.3comcom.com

 A. The change has no effect on the packets being filtered.

 B. All traffic from the 192.168.254.0 LAN to the Internet is permitted. 3COM华为网络.技术学院 http://www.3comcom.com

 C. Web pages from the Internet cannot be accessed by hosts in the 192.168.254.0 LAN.

3COM思科网络技术.学院 http://www.3comcom.com

 D. No hosts in the 192.168.254.0 LAN except 192.168.254.7 can access web pages from the Internet.

Answer: A

22.A network technician enters the following line into the router.

Tidmore1(config)# no access-list 106 permit ip any any

What is the effect of this configuration?

3COM思科华为网络技术学院 www.3comcom.com

 A. The change has no effect on the packets being filtered. 3COM华为网络.技术学院 http://www.3comcom.com

 B. All traffic from the 192.168.254.0 LAN to the Internet is permitted.

 C. Web pages from the Internet cannot be accessed by hosts in the 192.168.254.0 LAN.

 D. No hosts in the 192.168.254.0 LAN except 192.168.254.7 can access web pages from the Internet.

3COM思科华为网络技术学院 www.3comcom.com

Answer: B