Business Data Communications Midterm
Practice
Business Data Communications refers to the movement of data from - ANS-One computer
application on a computer to another computer application on another computer
Businesses generate more network data than consumers
True
False - ANS-False
The novelty of the Telegraph was that - ANS-It allowed instantaneous long-distance
communication over a wire
The novelty of multiplexing is that - ANS-It allows one wire to carry multiple signals
simultaneously
The novelty of packet switching is that - ANS-It allows all users to be connected to all other
users simultaneously
Packetization is the process of - ANS-Breaking down user data into small segments
The header of a data packet contains all of the following except - ANS-User data
Layering is the practice of - ANS-Arranging functionality of components so that lower layers
support the services of upper layers
One feature common to most computer software and data communications is - ANS-The use of
layering to organize functionality
The Physical layer in the TCP/ IP stack is responsible for - ANS-Signaling
The Data link layer in the TCP/ IP stack is responsible for - ANS-Error control
The Network layer in the TCP/ IP stack is responsible for - ANS-Identifying and locating the
destination
The Transport layer in the TCP/ IP stack is responsible for - ANS-Segmentation and reassembly
of packets
The Application layer in the TCP/ IP stack is responsible for - ANS-Specifying end user needs
, The contribution of the OSI model was that - ANS-It helped specify the concept of layers in data
communication
The presentation layer in the OSI model is responsible for - ANS-Syntax conversion from
host-specific syntax for network transfer
The session layer in the OSI model is responsible for - ANS-Creating and terminating
connections
At which layer of the OSI model are you likely to see acknowledgments of data segments? -
ANS-Transport
A protocol is a set of rules that - ANS-Permit information systems to exchange information with
each other
A unique feature of the Internet compared to landline phone and traditional cable TV networks is
that - ANS-The Internet uses a common packet format to transfer data from any application
A technology defined at the Data link layer is - ANS-Ethernet
The OSI model has ______ layers - ANS-7
The TCP/ IP stack has ______ layers - ANS-5
The common packet format that can be transferred by any networking technology and that
serves all applications is defined at the _______ layer - ANS-Network layer
Signaling is - ANS-Converting data to signals for transmission over physical media
A Signal is - ANS-Detectable transmitted energy that can be used to carry information
The only layer in the TCP/ IP stack that deals with the limitations of nature is - ANS-The
Physical layer
Signals in copper wire are transmitted as - ANS-Electrical signals
A physical medium is - ANS-The transmission path over which a signal propagates
The term UTP stands for - ANS-Unshielded twisted pair
Cat 5 cable has _____ wires - ANS-8
As a physical medium, copper possesses all of the following properties, except - ANS-Copper
can transmit information over very long distances
Practice
Business Data Communications refers to the movement of data from - ANS-One computer
application on a computer to another computer application on another computer
Businesses generate more network data than consumers
True
False - ANS-False
The novelty of the Telegraph was that - ANS-It allowed instantaneous long-distance
communication over a wire
The novelty of multiplexing is that - ANS-It allows one wire to carry multiple signals
simultaneously
The novelty of packet switching is that - ANS-It allows all users to be connected to all other
users simultaneously
Packetization is the process of - ANS-Breaking down user data into small segments
The header of a data packet contains all of the following except - ANS-User data
Layering is the practice of - ANS-Arranging functionality of components so that lower layers
support the services of upper layers
One feature common to most computer software and data communications is - ANS-The use of
layering to organize functionality
The Physical layer in the TCP/ IP stack is responsible for - ANS-Signaling
The Data link layer in the TCP/ IP stack is responsible for - ANS-Error control
The Network layer in the TCP/ IP stack is responsible for - ANS-Identifying and locating the
destination
The Transport layer in the TCP/ IP stack is responsible for - ANS-Segmentation and reassembly
of packets
The Application layer in the TCP/ IP stack is responsible for - ANS-Specifying end user needs
, The contribution of the OSI model was that - ANS-It helped specify the concept of layers in data
communication
The presentation layer in the OSI model is responsible for - ANS-Syntax conversion from
host-specific syntax for network transfer
The session layer in the OSI model is responsible for - ANS-Creating and terminating
connections
At which layer of the OSI model are you likely to see acknowledgments of data segments? -
ANS-Transport
A protocol is a set of rules that - ANS-Permit information systems to exchange information with
each other
A unique feature of the Internet compared to landline phone and traditional cable TV networks is
that - ANS-The Internet uses a common packet format to transfer data from any application
A technology defined at the Data link layer is - ANS-Ethernet
The OSI model has ______ layers - ANS-7
The TCP/ IP stack has ______ layers - ANS-5
The common packet format that can be transferred by any networking technology and that
serves all applications is defined at the _______ layer - ANS-Network layer
Signaling is - ANS-Converting data to signals for transmission over physical media
A Signal is - ANS-Detectable transmitted energy that can be used to carry information
The only layer in the TCP/ IP stack that deals with the limitations of nature is - ANS-The
Physical layer
Signals in copper wire are transmitted as - ANS-Electrical signals
A physical medium is - ANS-The transmission path over which a signal propagates
The term UTP stands for - ANS-Unshielded twisted pair
Cat 5 cable has _____ wires - ANS-8
As a physical medium, copper possesses all of the following properties, except - ANS-Copper
can transmit information over very long distances
