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MCQ

Switching at the network layer in the Internet uses the datagram approach to:

Message switching

Circuit switching

IP switching

Packet switching

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

first three

first four

first five

first six

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With telecommunications and a personal computer you can

"download" free public domain programs

send letters to be printed and delivered by the post office

order goods at a substantial discount

All of the above

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MCQ

Which of the following statements is incorrect?

The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission

Half-duplex line is a communication line in which data can move in two directions, but not at the same time.

Teleprocessing combines telecommunications and DP techniques in online activities.

Batch processing is the preferred processing mode for telecommunication operations

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Communication circuits that transmit data in both directions but not at the same time are operating in

a simplex mode

a half-duplex mode

a full-duplex mode

an asynchronous mode

None of the above

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The physical layer, in reference to the OSI model, defines

data link procedures that provide for the exchange of data via frames that can be sent and received

the interface between the X.25 network and packet mode device

the virtual circuit interface to packet-switched service

All of the above

None of the above

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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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