Question:1
Number of bits per symbol used in Baudot code is
a. 7
b. 5
c. 8
d. 9
Question 2:
What is the main difference between DDCMP and SDLC?
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
Question 3:
An example of digital, rather than analog, communication is
a. DDD
b. DDS
c. WATS
d. DDT
Question 4:
Terminals are required for
a. real-time, batch processing & time-sharing
b. real time, time-sharing & distributed message processing
c. real time, distributed processing & manager inquiry
d. real-time, time sharing & message switching
Question 5:
The receive equilizer reduces delay distortions using a
a. tapped delay lines
b. gearshift
c. descrambler
d. difference engine
Question 6:
Ina synchronous modem, the receive equilizer is known as
a. adaptive equilizer
b. impariment equilizer
c. statistical equilizer
d. compromise equilizer
Question 7:
The channel in the data communication model can be
a. postal mail services
b. telephone lines
c. radio lines
d. any of the above
Question 8:
A data terminal serves as an
a. Effector
b. sensor
c. both a and b
d. neither a nor b
Question 9:
Which of the following transmission systems provide the highest data rate to in individual device?
a. computer bus
b. telephone lines
c. voice and mode
d. lease lines
Question 10:
A protocol is a set of rules governing a time sequence of events that must take place
a. between peers
b. between an interface
c. between modems
d. across an interface
1. b
2. a
3. b
4. d
5. a
6. a
7. d
8. c
9. a
10. a
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