Computer Networking
Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?

None of these
Attenuation
Interface
Teleprocessor
Modem

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Computer Networking
You want to create a standard access list that denies the subnet of the following host: 172.16.50.172/20. Which of the following would you start your list with?

access-list 10 deny 172.16.48.0 255.255.240.0
access-list 10 deny 172.16.48.0 0.0.15.255
access-list 10 deny 172.16.0.0 0.0.255.255
access-list 10 deny 172.16.64.0 0.0.31.255

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Computer Networking
What is the purpose of Spanning Tree Protocol in a switched LAN?

To create collision domains
To manage the VLAN database across multiple switches
To prevent switching loops in networks with redundant switched paths
To prevent routing loops in networks with redundant paths
To provide a mechanism for network monitoring in switched environments

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Computer Networking
You configure the following access list:access-list 110 deny tcp 10.1.1.128 0.0.0.63 any eq smtpaccess-list 110 deny tcp any eq 23int ethernet 0ip access-group 110 outWhat will the result of this access list be?

Email and Telnet will be allowed in E0.
Everything but email and Telnet will be allowed out E0.
Email and Telnet will be allowed out E0.
No IP traffic will be allowed out E0.

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