Computer Network Part-2

6.

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

1)	concentrator
2)	modifier.
3)	multiplexer.
4)	full-duplex line.

7.

Sending a file from your personal computer's primary memory or disk to another computer is called

1)	uploading
2)	downloading
3)	logging on
4)	hang on

8.

What is the name of the software package that allows people to send electronic mail along a network of computers and workstations?

1)	Memory resident package
2)	Project management package
3)	Data communication package
4)	Electronic mail package

9.

The communication mode that supports two-way traffic but only one direction at a time is

1)	simplex
2)	duplex
3)	half duplex
4)	multiplex

10.

HMP (Host Monitoring Protocol) is:

1)	a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
2)	a TCP/IP high level protocol for transferring files from one machine to another
3)	a protocol used to monitor computers
4)	a protocol that handles error and control messages

Computer Networks Part-1

1. Error detection at a data link level is achieved by   1) bit stuffing 2) cyclic redundancy codes 3) Hamming codes 4) equalization 2. When the computer provides the manager with a multiple choice of possible answers, the prompting technique is   1) question and answer 2) form filling 3) open-ended question 4) menu selection 3. Which data communication method is used to transmit the data over a serial communication link?   1) simplex 2) half-duplex 3) full-duplex 4) None of above 4. What is the minimum number of wires needed to send data over a serial communication link layer?   1) 1 2) 2 3) 4 4) 6 5. Most data communications involving telegraph lines use:   1) simplex lines 2) wideband channel 3) narrowband channel 4) dialed service

IBPS Specialist Officer Exam Questions..Very Important Part-4

Question 1:

Which data communication method is used to transmit the data over a serial communication link?

a. simplex

b. half-duplex

c. full-duplex

d. b and c

e. None of above

Question 2:

What is the minimum number of wires needed to send data over a serial communication link layer?

a. 1

b. 2

c. 4

d. 6

e. none of above

Question 3:

Which of the following types of channels moves data relatively slowly?

a. wide band channel

b. voice band challen

c. narrow band channel

Question 4:

Most data communications involving telegraph lines use:

a. simplex lines

b. wideband channel

c. narrowband channel

d. dialed service

Question 5:

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

a. concentrator

b. modifier

c. multiplexer

d. full-duplex line

Question 6:

How much power (roughly) a light emitting diode can couple into an optical fiber?

a. 100 microwatts

b. 440 microwatts

c. 100 picowatts

d. 10 miliwatts

Question 7:

The synchronous modems are more costly than the asynchronous modems because

a. they produce large volume of data

b. they contain clock recovery circuits

c. they transmit the data with stop and start bits

d. they operate with a larger bandwidth

e. none of above

Question 8:

Which of the following statement is correct?

a. terminal section of a synchronous modem contains the scrambler

b. receiver section of a synchronous modem contains the scrambler

c. transmission section of a synchronous modem contains the scrambler

d. control section of a synchronous modem contains the scrambler

e. none of the above

Question 9:

In a synchronous modem, the digital-to-analog converter transmits signal to the 

a. equilizer

b. modulator

c. demodulator

d. terminal

e. none of aobve

Question 10:

Which of the following communications lines is best suited to interactive processing applications?

a. narrow band channel

b. simplex lines

c. full duplex lines

d. mixed band channels

Answers

 ---------------------

1. c

2. b

3. c

4. c

5. c

6. a

7. b

8. c

9. a

10. c

IBPS Specialist Officer Exam Questions..Very Important Part-3

Question:1

A remote batch-processing operation in which data is solely input to a central computer would require

a. telegraphp line

b. simplex lines

c. mixed bad channel

d. all of above

Question 2:

A band is always equivalent to 

a. a byte

b. a bit

c. 100 bits

d. none of above

Question 3:

The loss in signal power as light travels down the fiber is called

a. attenuation

b. progragation

c. scattering

d. interruption

Question 4:

Avalanche photodiode receivers can detect bits of transmitted data by receiving

a. 100 photons

b. 200 photons

c. 2000 photons

d. 300 photons

Question 5:

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

a. a simplex mode

b. a half duplex mode

c. a full duplex mode

d. an asynchronous mode

Question 6:

An example of a medium speed, switched communications service is

a. series 1000

b. data phone 50

c. DDD

d. All of the above

Question 7:

In communication satellite, multiple repeaters are known as

a. detector

b. modulator

c. stations

d. transponders

Question 8:

While transmitting odd-parity coded symbols, the number of zeros in each symbol is

a. odd

b. even

c. a and b both

d. unknown

Question 9:

Data communications monitors available on the software marked include

a. ENVIRON/1

b. TOTAL

c. BPL

d. Telnet

Question 10:

An example of an analog communication method is

a. laser beam

b. microwave

c. voice grade telephone line

d. all of the above

Answers

---

 

1. b

2. d

3. a

4. b

5. b

6. c

7. d

8. d

9. a

10. d

IBPS Specialist Officer Exam Questions..Very Important PART -2

Question 1:

The interactive transmission of data within a time sharing system may be best suited to 

a. simplex lines

b. half-duplex lines

c. full duplex lines

d. biflex-lines

 Question 2:

Which of the following statement is incorrect?

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

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

c. Teleprocessing combines telecommunications and DP techniques in online activities

d. Batch processing is the prefered processing mode for telecommunication operation.

Question 3:

Which of hte following is considered a broad band communication channel?

a. coaxial cable

b. fiber optics cable

c. microwave circuits

d. all of above

Question 4:

Which of the following is not a transmission medium?

a. telephone lines

b. coaxial cables

c. modem- Its a Connecting Device as asked in interview not Interconnecting Device

d. microwave systems

Question 5:

Which of the following does not allow multiple uses or devices to share one communication line?

a. doubleplexer

b. multiplexer

c. concentrator

d. controller

Question 6:

Which of the following signal is not standard RS-232-C signal?

a. VDR

b. RTS

c. CTS

d. DSR

Question 7:

Which of the following statement is incorrect?

a. Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line

b. HDLC is a standard synchronous communication protocol.

c. RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data

d. RTS/CTS is the way the terminal indicates ringing

Question 8:

Which of the following is an advantage to using fiber optics data transmission?

a. resistance to data theft

b. fast data transmission rate

c. low noise level

d. all of above

Question 9:

Which of the following is required to communicate between two computers?

a. communications software

b. protocol

c. communication hardware

d. all of above including access to transmission medium

Question 10:

The transmission signal coding method of TI carrier is called

a. Bipolar

b. NRZ

c. Manchester

d. Binary

Answers:

1. b

2. d

3. d

4. c

5. a

6. a

7. d

8. d

9. d

10. a