IT 105 Final
Academic Review Pack – Key Topics & Questions
The OSI model defines four layers used by computer systems to communicate over a network. -
False
Random access files are the same as relative access files. - False
In computer hardware, a port is simply a connector at the end of a bus into which a device can
be plugged. - True
The operating system provides I/O support services that can be used by every program. - True
The wiring on the motherboard interconnects all of the peripheral cards that are plugged in to
connectors, together with circuitry that steers I/O to the CPU and memory. This arrangement is
known as a: - Backplane
A channel that carries messages in only one direction is known as a duplex channel. - False
A full-duplex channel may carry messages in both directions, but only one direction at a time. -
False
An Intranet is an organizational network, where the user interfaces and applications are based
primarily on Web services. - True
Ethernet is called the Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
protocol. - True
, Ports are used in the Transport layer to identify the application that is to receive the message. -
True
There must be a way to break long messages into smaller units. These units are called segments.
- False
The use of packets simplifies operations and increases communication efficiency. - True
Channels can be made up of multiple links. - True
Packet switching is also called datagram switching. - True
Multimedia applications require relatively few MIPS (Million Instructions Per Second). - False
Client-server computing typically provides easier administration of services. - True
A Cluster typically provides high availability and fault tolerance. - True
Clustering is used to increase the available computing power by combining the power of the
individual systems. - True
Which of the following multiplexing techniques is normally used with digital signals? - Time
division multiplexing (TDM)
Which of the following computers are mounted on a board similar to a motherboard that can be
plugged into connectors on a rack? - Blade servers
Academic Review Pack – Key Topics & Questions
The OSI model defines four layers used by computer systems to communicate over a network. -
False
Random access files are the same as relative access files. - False
In computer hardware, a port is simply a connector at the end of a bus into which a device can
be plugged. - True
The operating system provides I/O support services that can be used by every program. - True
The wiring on the motherboard interconnects all of the peripheral cards that are plugged in to
connectors, together with circuitry that steers I/O to the CPU and memory. This arrangement is
known as a: - Backplane
A channel that carries messages in only one direction is known as a duplex channel. - False
A full-duplex channel may carry messages in both directions, but only one direction at a time. -
False
An Intranet is an organizational network, where the user interfaces and applications are based
primarily on Web services. - True
Ethernet is called the Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
protocol. - True
, Ports are used in the Transport layer to identify the application that is to receive the message. -
True
There must be a way to break long messages into smaller units. These units are called segments.
- False
The use of packets simplifies operations and increases communication efficiency. - True
Channels can be made up of multiple links. - True
Packet switching is also called datagram switching. - True
Multimedia applications require relatively few MIPS (Million Instructions Per Second). - False
Client-server computing typically provides easier administration of services. - True
A Cluster typically provides high availability and fault tolerance. - True
Clustering is used to increase the available computing power by combining the power of the
individual systems. - True
Which of the following multiplexing techniques is normally used with digital signals? - Time
division multiplexing (TDM)
Which of the following computers are mounted on a board similar to a motherboard that can be
plugged into connectors on a rack? - Blade servers
