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

a very common bit-oriented data link protocol issued by ISO.
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
None of these
a method access control technique for multiple-access transmission media

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Computer Networking
The main difference between TCP and UDP is

All of these
None of these
UDP is a datagram where as TCP is a connection oriented service
UDP is connection oriented where as TCP is datagram service
TCP is an Internet protocol where as UDP is an ATM protocol

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Computer Networking
You type the following command into the router and receive the following output:Router#show serial 0/0 ^% Invalid input detected at '^' marker.Why was this error message displayed?

You need to be in privileged mode.
Part of the command is missing.
The router does not have a serial0/0 interface.
You cannot have a space between serial and 0/0.

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Computer Networking
When setting up Frame Relay for point-to-point subinterfaces, which of the following must not be configured?

The subinterface type as point-to-point
An IP address on the physical interface
PAP
The local DLCI on each subinterface
The Frame Relay encapsulation on the physical interface

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Computer Networking
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

a form of TDMA in which circuit switching is used to dynamically change the channel assignments
None of these
All of these
a medium access control technique for multiple access transmission media
the method of determining which device has access to the transmission medium at any time.

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