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GMU IT 105 Final Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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GMU IT 105 Final Exam | Questions And Answers Latest {2024- 2025} A+ Graded | 100%Verified
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. - 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
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
Which of the following is FALSE regarding fiber-optic cabling - It is vulnerable to most forms of noise.
Abbreviated Hz, is the unit used to measure what? - Frequency
The USB protocol allows packets to be scheduled for delivery at regular time intervals. This technique is
known as what? - Isochronous data transfer
Which of the following is not a component of a communication frame? - Bit Rate
TCP sends a control packet to TCP at the Web site, requesting a connection; this results in a brief back-
and-forth series of requests and acknowledgments known as what? - Handshaking
Reading data in all the packets as they pass through the network is known as what? - Packet sniffing
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