GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam GMU IT 105 Final Exam ...
GMU IT 105 Final Exam Questions and
Answers
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.
✓ ~~~True
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.
Page (256), simplex, half-duplex, full-duplex
, ✓ ~~~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
Packet switching is also called datagram switching.
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