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Computer Networking

Computer Networking
What PPP protocol provides dynamic addressing, authentication, and multilink?

NCP
HDLC
X.25
LCP

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Computer Networking
What is the maximum distance with maximum data rate for 802.11b?

Over 200 feet
About 65-75 feet
About 90-100 feet
About 150 feet

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Computer Networking
Which of the following describe the DHCP Discover message?1. It uses FF:FF:FF:FF:FF:FF as a layer 2 broadcast.2. It uses UDP as the Transport layer protocol.3. It uses TCP as the Transport layer protocol.4. It does not use a layer 2 destination address.

3 and 4
4 only
1 only
1 and 2

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Computer Networking
Which multiplexing technique shifts each signal to a different carrier frequency?

FDM
asynchronous TDM
All of these
synchronous TDM

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Computer Networking
A communications device that combines transmissions from several I/O devices into one line is a:

multiplexer
modifier
full-duplex line
concentrator
None of these

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Computer Networking
What is the main difference between DDCMP and SDLG?

None of these
DDCMP has a message header
SDLC does not use CRC
SDLC has a IP address
DDCMP does not need special hardware to final the beginning of a message.

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