| Q.1. Error detection at a data link level is achieved by |
|---|
| a.bit stuffing b.cyclic redundancy codes c.Hamming codes d.equalization |
| Answer: b |
Q.2. When the computer provides the manager with a multiple choice of possible answers, the prompting technique is |
| a. question and answer b. form filling c. open-ended question d. menu selection |
| Answer: d |
Q.3. Which data communication method is used to transmit the data over a serial communication link? |
| a. simplex b. half-duplex c. full-duplex d. None of above |
| Answer: c |
Q.4. 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 |
| Answer: b |
Q.5. Most data communications involving telegraph lines use: |
| a. simplex lines b. wideband channel c. narrowband channel d. dialed service |
| Answer: c |
Q.6. 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. |
| Answer: c |
Q.7. Sending a file from your personal computer's primary memory or disk to another computer is called |
| a. uploading b. downloading c. logging on d. hang on |
| Answer: a |
Q.8. What is the name of the software package that allows people to send electronic mail along a network of computers and workstations? |
| a. Memory resident package b. Project management package c. Data communication package d. Electronic mail package |
| Answer: c |
Q.9. The communication mode that supports two-way traffic but only one direction at a time is |
| a. simplex b. duplex c. half duplex d. multiplex |
| Answer: c |
Q.HMP (Host Monitoring Protocol) is: |
| a. a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address b. a TCP/IP high level protocol for transferring files from one machine to another c. a protocol used to monitor computers d. a protocol that handles error and control messages |
| Answer: c |
| Previous | Next |
:: Click the links below for similar type Questions and answers ::
Posted in: 
0 comments:
Post a Comment