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MCQ

A devices that links two homogeneous packet-broadcast local networks, is

gateway

repeater

bridge

hub

None of the above

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MCQ

Which of the following divides the high speed signal into frequency bands?

t-switch

modem

frequency-division multiplexer

time-division multiplexer

None of the above

Discussion

MCQ

HDLC (High-level Data Link Control) is

a method of determining which device has access to the transmission medium at any time

a method access control technique for multiple-access transmission media

a very common bit-oriented data link protocol issued by ISO.

network access standard for connecting stations to a circuit-switched network

None of the above

Discussion

MCQ

Error control is needed at the transport layer because of potential errors occurring _____.

from transmission line noise

in routers

from out-of-sequence delivery

from packet losses.

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MCQ

How many digits of the DNIC (Data Network Identification Code) identify the country?

first three

first four

first five

first six

None of the above

Discussion

MCQ

Phase shift keying (psk) method is used to modulate digital signals at 9600 bps using 16 levels. Find the line signaling speed (i.e., modulation rate)

2400 bands

1200 bands

4800 bands

9600 bands

DHCP Management Console

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Data Communication and Networking

Miscellaneous or General

Computer Basics

Computer Softwares

History and Generations

CPU and its components

Computer Languages

Computer Hardware

Input Devices

Output Devices

Computer Memory

Digital Logic Gate

Number System

Computer Codes

Operating System

Disk Operating System (DOS)

Database Systems

Computer Security and Viruses

Mixed

Computer Awareness

Files and its types

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