PPSC Computer Science Ch 18- (Network)

PPSC Computer Science Chapter 18 Network Online Test

Sr. #	Questions	Answers Choice
1	The communication mode that supports two way traffic but only one direction at a time is.	simplex Duplex Half duplex Multiplex
2	What is the name of the software package that allows people ot send electronic mail along a network of computers and work stations.	Memory resident package Protect management package. Data communication package Electronic mail package
3	Sending a file from your personal computer's primary memory or disk to another computer is called.	Uploading Down loading Logging on Hang on
4	A communication device that combines transmissions from several I/O devices into one line is a.	Concentrator Modifier Multiplexer Full duplex line
5	Most data communications involving telegraph lines use.	Simple lines Wideband channel Narrow band channel Dialed service
6	What is the minimum number of wires needed to send data over a serial communication link layer.	1 2 4 6
7	Which data communication method is used to transmit the data over a serial communication link.	Simplex Half duplex Full duplex None
8	When the computer provides the manager with multiple choice of possible answers, the prompting technique is.	Question and answer Form filling Open ended question Menu selection
9	Error detection at a data link level is achieved by	Bit stuffing Cycle redundancy codes Hamming codes Equalization