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Business Data
Communications 1st
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Question Bank accompanying
Business Data Communications
By Manish Agrawal
Chapter 1 - Introduction
1.
Business Data Communications refers to the movement of data from _____.
a)
b)
one computer to another computer
one computer application on a computer to another computer application on
another computer
one computer network to another computer network
one person to another
c)
d)
Answer: (b)
2.
The continent with the highest growth rate of Internet traffic is _____.
a)
b)
c)
d)
North America
Asia
South America
Europe
Answer: (c)
3.
Businesses generate more network data than consumers.
a)
b)
True
False
Answer: (b)
4.
The novelty of the telegraph was that _____.
a)
b)
c)
d)
it allowed instantaneous long-distance communication over a wire
it allowed people to talk to each other
it allowed one wire to connect a user to multiple destinations
it allowed users to draw graphs
Answer: (a)
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Chapter 1 - Introduction
5.
The novelty of multiplexing is that _____.
a)
b)
c)
d)
it allows instantaneous long distance communications
it allows one wire to carry multiple signals simultaneously
it allows one wire to connect a user to multiple destinations
None of the above
Answer: (b)
6.
The novelty of switching is that _____.
a)
b)
c)
d)
it allows instantaneous long distance communications
it allows one wire to carry multiple signals simultaneously
it allows one wire to connect a user to multiple destinations
it breaks data down into small units of information
Answer: (c)
7.
The novelty of packet switching is that _____.
a)
b)
c)
d)
it allowed instantaneous long distance communications for the first time
it enabled long distance voice communication for the first time
it allows all users to be connected to all other users simultaneously
None of the above
Answer: (c)
8.
Packetization is the process of _____.
a)
b)
c)
d)
sending letters to friends
sending user data over networks
communicating between computer applications
breaking down user data into small segments
Answer: (d)
9.
The header of a data packet contains all of the following except _____.
a)
b)
c)
d)
sender address
receiver address
packet size
user data
Answer: (d)
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Chapter 1 - Introduction
10.
Layering is the practice of _____.
a)
arranging functionality of components so that upper layers support the services of
lower layers
arranging functionality of components so that lower layers support the services of
upper layers
breaking down user data into small segments
using one wire to carry multiple signals simultaneously
b)
c)
d)
Answer: (b)
11.
One feature common to most computer software and data communications is _____.
a)
b)
c)
d)
the use of layering to organize functionality
the use of packetization
the use of routing
the use of signaling
Answer: (a)
12.
The physical layer in the TCP/ IP stack is responsible for _____.
a)
b)
c)
d)
error control
identifying and locating the destination
signaling
segmentation and reassembly of packets
Answer: (c)
13.
The data link layer in the TCP/ IP stack is responsible for _____.
a)
b)
c)
d)
error control
identifying and locating the destination
signaling
segmentation and reassembly of packets
Answer: (a)
14.
The network layer in the TCP/ IP stack is responsible for _____.
a)
b)
c)
d)
error control
identifying and locating the destination
specifying end user needs
segmentation and reassembly of packets
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Chapter 1 - Introduction
Answer: (b)
15.
The transport layer in the TCP/ IP stack is responsible for _____.
a)
b)
c)
d)
error control
identifying and locating the destination
specifying end user needs
segmentation and reassembly of packets
Answer: (d)
16.
The application layer in the TCP/ IP stack is responsible for _____.
a)
b)
c)
d)
error control
identifying and locating the destination
specifying end user needs
segmentation and reassembly of packets
Answer: (c)
17.
The contribution of the OSI model was that _____.
a)
b)
c)
d)
it helped develop the technology used for routing
it helped develop the technologies used for signaling
it helped develop the technologies used for reliable data delivery
it helped specify the concept of layers in data communication
Answer: (d)
18.
The presentation layer in the OSI model is responsible for _____.
a)
b)
c)
d)
error control
specifying end user needs
presenting information to end users
syntax conversion from host-specific syntax for network transfer
Answer: (d)
19.
The session layer in the OSI model is responsible for _____.
a)
b)
c)
d)
error control
specifying end user needs
creating and terminating connections
tracking cookies
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Chapter 1 - Introduction
Answer: (c)
20.
A protocol is a set of rules that _____.
a)
b)
c)
d)
define layers
permit information systems to exchange information with each other
break down user data into small segments
arrange functionality of components
Answer: (b)
21.
A unique feature of the Internet compared to phone and TV networks is that _____.
a)
b)
c)
d)
the Internet has a higher data transfer rate
the Internet uses a common packet format to transfer data from any application
the Internet was operational long before phone and TV networks
the Internet can be used to transmit information
Answer: (b)
22.
A technology defined at the data link layer is _____.
a)
b)
c)
d)
Ethernet
IP
TCP
SMTP
Answer: (a)
23.
The OSI model has ______ layers.
a)
b)
c)
d)
5
6
3
7
Answer: (d)
24.
The TCP/ IP stack has ______ layers.
a)
b)
c)
d)
5
6
3
7
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Chapter 1 - Introduction
Answer: (a)
25.
The common packet format that can be transferred by any network and that serves all
applications is defined at the _______ layer.
a)
b)
c)
d)
data link
network
transport
application
Answer: (b)
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