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WorksheetsCS8591-COMPUTER NETWORKS-UNIT-1
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Provides a connection oriented reliable service for sending messages
a)
TCP
b)
UDP
c)
IP
d)
All of the above
2.
Which of the following layer is called as end to end layer ?
a)
Physical Layer
b)
Datalink Layer
c)
Network Layer
d)
Transport Layer
3.
What is the meaning of bandwidth in network?
a)
Transmission capacity for communication channel
b)
Connected computers in the network
c)
Class of IP used in Network
d)
None of the above
4.
Computer network is
a)
Collection of hardware components and computers
b)
Interconnected by communication channel
c)
Sharing of resources and information
d)
All of the above
5.
Which of the following layer does error checking of data ?
a)
Data Link Layer
b)
Network Layer
c)
Physical Layer
d)
Transport Layer
6.
The physical layer is responsible for the transmission of __ over the physical medium
a)
Packets
b)
bits
c)
message
d)
segment
e)
all of the above
7.
Protocols are
a)
Agreements on how communication components and DTE’s are to communicate
b)
Logical communication channel used for transferring data
c)
Physical communication channel used for transferring data
d)
None of the above
8.
In a broad sense a railway track is an example of
a)
Simple
b)
Half Duplex
c)
Full Duplex
d)
All of the above
9.
A device that can convert digital signals to analog
a)
A packet
b)
A modem
c)
An emulator
d)
None of the above
10.
Local area networks can transmit
a)
Faster than telecommunications over public telephone lines
b)
Slower than telecommunication over public lines
c)
By using twisted or coaxial cable
d)
Both A and C
11.
A local area network
a)
That connects thirty personal computers can provide more computing power than a minicomputer
b)
Control error detection and correction
c)
Constructs packets of data and sends them across the network
d)
None of the above
12.
Which layer of OSI model is responsible for semantics and syntax of data ?
a)
Application
b)
Presentation
c)
Session
d)
Transport
13.
Which layer of OSI provides reliable process to process message delivery and error recovery
a)
Transport Layer
b)
Physical Layer
c)
Data Link Layer
d)
Presentation Layer
14.
At network layer protocol defined by TCP/IP is
a)
TCP
b)
UDP
c)
IP
d)
None of the above
15.
The______is the physical path over which a message travels
a)
Protocol
b)
Medium
c)
Signal
d)
All of the above
16.
Which topology requires a central controller or hub?
a)
Mesh
b)
Star
c)
Bus
d)
Ring
17.
Which topology requires a multipoint connection?
a)
Mesh
b)
Star
c)
Bus
d)
Ring
18.
Communication between a computer and a keyboard involves________
a)
simplex
b)
hal-duplex
c)
full-duplex
d)
automatic
19.
________connection provides a dedicated link between two devices
a)
point-to-point
b)
multipoint
c)
primary
d)
secondary
20.
______ is the protocol suite for the current internet.
a)
ACM
b)
UNIX
c)
TCP/IP
d)
NCP
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