Computer Networking
Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LANs, what type of device(s) are needed to connect them? Choose the most correct answer.

Hub
Router
None of these
Cable
Modem

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Computer Networking
The Internet Control Message Protocol (ICMP)

allows gateways to send error a control messages to other gateways or hosts
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
None of these
All of these
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem

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Computer Networking
HDLC (High-level Data Link Control) is

a very common bit-oriented data link protocol issued by ISO.
None of these
a method of determining which device has access to the transmission medium at any time
network access standard for connecting stations to a circuit-switched network
a method access control technique for multiple-access transmission media

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

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

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

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