Networking problems
- 1. An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as
Options- A. Cyclic redundancy check
- B. Checksum
- C. Error detecting code
- D. Error rate
- E. None of the above Discuss
Correct Answer: Cyclic redundancy check
- 2. What is the name of the device that connects two computers by means of a telephone line?
Options- A. Tape
- B. modem
- C. bus
- D. cable
- E. None of the above Discuss
Correct Answer: modem
- 3. The area of coverage of a satellite radio beam is known as
Options- A. Footprint
- B. Circular polarization
- C. Beam width
- D. Identity
- E. None of the above Discuss
Correct Answer: Footprint
- 4. Typewriter terminals can print computer-generated data at a rate of
Options- A. 10 characters per second
- B. 120 characters per second
- C. 120 characters per minute
- D. 1200 characters per minute
- E. None of the above Discuss
Correct Answer: 120 characters per second
- 5. After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?
Options- A. Telex
- B. Word processor
- C. Facsimile
- D. Electronic mail
- E. None of the above Discuss
Correct Answer: Facsimile
- 6. RS-232-G
Options- A. is an interface between two data circuit terminating equipment as examplified by a local and remote modem
- B. is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
- C. specifies only the mechanical characteristics of an interface by providing a 25-pin connector
- D. requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
- E. None of the above Discuss
Correct Answer: is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
- 7. In a _____ topology, if there are n devices in a network, each device has n - 1 ports for cables.
Options- A. ring
- B. bus
- C. star
- D. mesh
- E. None of the above Discuss
Correct Answer: mesh
- 8. The _____ layer is the layer closest to the transmission medium.
Options- A. transport
- B. network
- C. data link
- D. physical
- E. None of the above Discuss
Correct Answer: physical
- 9. A distributed data processing configuration in which all activities must pass through a centrally located computer is called a:
Options- A. ring network
- B. spider network
- C. hierarchical network
- D. data control network
- E. None of the above Discuss
Correct Answer: spider network
- 10. What is the main difference between DDCMP and SDLG?
Options- A. DDCMP does not need special hardware to final the beginning of a message.
- B. DDCMP has a message header
- C. SDLC has a IP address
- D. SDLC does not use CRC
- E. None of the above Discuss
Correct Answer: DDCMP does not need special hardware to final the beginning of a message.
More in Computer Science:
Programming
Copyright ©CuriousTab. All rights reserved.