Information Technology - National Institute of Oriented School (ITNIOS)
Computer Networking
Set 1
Question 1:
In OSI network architecture, the dialogue
control and token management are responsibility of
a. session layerb. network layerc. transport layerd. data link layere. none of above
Question 2:
In OSI network architecture, the routing is
performed by
a. network layerb. data link layerc.
transport layerd. session layere. none of above
Question 3:
Which of the following performs modulation and
demodulation?
a. fiber opticsb. satellitec. coaxial cabled. modeme.
none of the above
Question 4:
The process of converting analog signals into
digital signals so they can be processed by a receiving computer is referred to
as:
a. modulation b.
demodulation c. synchronizing d. digitising
Question 5:
How many OSI layers are covered in the X.25
standard?
a. Two b.
Three c. Seven d. Six e. None of above
Question 6:
Layer one of the OSI model is
a. physical layer b. link layer c.
transport layer d. network layer e. none of above
Question 7:
The x.25 standard specifies a
a. technique for start-stop data b. technique for dial
access c. DTE/DCE interface d. data bit rate
e. none of above
Question 8:
Which of the following communication modes
support two-way traffic but in only one direction at a time?
a. simplex b.
half duplex c. three-quarters duplex d. all of the above e. none of the above
Question 9:
Which of the following might be used by a
company to satisfy its growing communications needs?
a. front end processor b. multiplexer c.
controller d. concentrator e. all of the above
Question 10:
What is the number of separate protocol layers
at the serial interface gateway specified by the X.25 standard?
a. 4 b.
2 c. 6 d. 3
3. none of the above
Correct Answers:
1. a 2.
A 3. D 4. D 5. B 6. A 7.
C 8. B 9. E 10. d
No comments:
Post a Comment