MCQs and Quiz related to Computer Networking.
First layer of OSI model is______
Option 1
|
link layer |
Option 2
|
physical layer |
Option 3
|
transport layer |
Option 4
|
network layer |
Which of the following might be used by a company to satisfy its growing communications needs?
Option 1
|
front end processor |
Option 2
|
concentrator |
Option 3
|
controller |
Option 4
|
multiplexer |
Option 5
|
all of the these |
The x.25 standard specifies a
Option 1
|
technique for start-stop data |
Option 2
|
technique for dial access |
Option 3
|
DTE/DCE interface |
Option 4
|
None of these |
Which of the following communication modes support two-way traffic but in only one direction at a time?
Option 1
|
three-quarters duplex |
Option 2
|
simplex |
Option 3
|
half duplex |
Option 4
|
None of these |
What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?
Option 1
|
2 |
Option 2
|
4 |
Option 3
|
5 |
Option 4
|
3 |
Option 5
|
None of these |
In OSI network architecture, the routing is performed by
Option 1
|
network layer |
Option 2
|
transport layer |
Option 3
|
data link layer |
Option 4
|
session layer |
Option 5
|
none of these |
In OSI network architecture, the dialogue control and token management are responsibility of
Option 1
|
session layer |
Option 2
|
network layer |
Option 3
|
transport layer |
Option 4
|
data link layer |
Which of the following performs modulation and demodulation?
Option 1
|
fiber optics |
Option 2
|
modem |
Option 3
|
satellite |
Option 4
|
coaxial cable |
Option 5
|
none of the these |
The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
Option 1
|
demodulation |
Option 2
|
modulation |
Option 3
|
synchronizing |
Option 4
|
digitising |
How many OSI layers are covered in the X.25 standard?
Option 1
|
Two |
Option 2
|
Three |
Option 3
|
Seven |
Option 4
|
Six |
Option 5
|
None of these |