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- Question
Data are sent over pin _____ of the EIA-232 interface.
Options- A. 2
- B. 3
- C. 4
- D. All of the above
- Correct Answer
- 2
- 1. If digital data rate of 9600 bps is encoded using 8-level phase shift keying (PSK) method, the modulation rate is
Options- A. 1200 bands
- B. 3200 bands
- C. 4800 bands
- D. 9600 bands
- E. None of the above Discuss
- 2. An error-detecting code inserted as a field in a block of data to be transmitted is known as
Options- A. Frame check sequence
- B. Error detecting code
- C. Checksum
- D. flow control
- E. None of the above Discuss
- 3. If delays are recorded as 10 bit numbers in a 50 router network, and delay vectors are exchanged twice a second, how much bandwidth per fill duplex line is occupied by the distributed routing algorithm?
Options- A. 500 bps
- B. 1500 bps
- C. 5 bps
- D. 1000 bps Discuss
- 4. FDDI is a
Options- A. ring network
- B. star network
- C. mesh network
- D. bus based network
- E. None of the above Discuss
- 5. What is the usual number of bits transmitted simultaneously in parallel data transmission used by microcomputers?
Options- A. 16
- B. 9
- C. 8
- D. 4
- E. None of the above Discuss
- 6. The receive equalizer reduces delay distortions using a
Options- A. tapped delay lines
- B. gearshift
- C. descrambler
- D. difference engine
- E. None of the above Discuss
- 7. Which network topology is considered passive?
Options- A. Cross
- B. Ring
- C. Star
- D. Mesh
- E. Bus Discuss
- 8. Four routers have to be interconnected in a point-to-point Network. Each pair of root us may connected by a high-speed line, a medium speed line or a low speed line. Find the total number of topologies.
Options- A. 12
- B. 81
- C. 48
- D. 729 Discuss
- 9. The cheapest modems can transmit
Options- A. 300 bits per second
- B. 1,200 bits per second
- C. 2,400 bits per second
- D. 4,800 bits per second
- E. None of the above Discuss
- 10. Which of the following technique is used for encapsulation?
Options- A. a technique used in best-effort delivery systems to avoid endlessly looping packets.
- B. a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
- C. One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
- D. All of the above
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: 3200 bands
Correct Answer: Frame check sequence
Correct Answer: 1000 bps
Correct Answer: ring network
Correct Answer: 9
Correct Answer: tapped delay lines
Correct Answer: Bus
Correct Answer: 729
Correct Answer: 300 bits per second
Correct Answer: a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
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