UTA INSY 2303 Final Exam Review (Units 1-4) Latest Update Questions and Correct Answers _______ are based on vectors stored as a set of instructions describing the coordinates for lines and shapes in a three-dimensional space. - Correct Answer:3-D graphics
_______ are used for creating software applications, Web sites, operating systems,
and utilities. - Correct Answer:Development tools
_______ is a very clever process that requires one key to encrypt data, but a different key to decrypt it; the encryption key can't be used to decrypt the message. - Correct
Answer:Public key encryption
A _______ contains circuitry that converts the data-carrying signals from a digital device to signals that can travel over various communications channels. - Correct
Answer:Modem
A _______ converts digital signals from a computer into audible analog signals that can
travel over telephone lines. - Correct Answer:Voiceband modem
A _______ is a fixed Internet connection that uses a voiceband modem and the telephone company's circuit-switched network to transport data between your computer
and your ISP. - Correct Answer:Dial-up connection
A _______ is a flat, rigid disk made of aluminum or glass and coated with magnetic iron
oxide particles. - Correct Answer:Hard disk platter
A _______ is based on an HTML source document that is stored as a file on a Web
server. - Correct Answer:Web page
A _______ typically contains a collection of related information organized and
formatted so it can be accessed using a browser. - Correct Answer:Web site
A bitmap graphic is composed of a grid of tiny rectangular cells where each cell is a
picture element, commonly called a pixel. - Correct Answer:True
A data storage system has two main components: a _______ and a _______. - Correct
Answer:Storage medium; storage device
A hard disk drive contains one or more platters and their associated read-write heads. -
Correct Answer:True
A read-write head mechanism in the disk drive magnetizes particles to write data, and
senses the particles' polarities to read data. - Correct Answer:True
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Access time - Correct Answer:The average time it takes a computer to locate data on the storage medium and read it.
ALU (Arithmetic logic unit) - Correct Answer:The part of the CPU that performs
arithmetic and logical operations on the numbers stored in its registers.
Analog data - Correct Answer:Data that is measured or represented on a continuously varying scale, such as a dimmer switch or a watch with a sweep second hand.
Application software - Correct Answer:A set of computer programs that help users perform a specific task such as word processing.
Bitmap - Correct Answer:An image, such as a digital photo, that is stored as a grid work of colored dots.
Capacity - Correct Answer:The amount of data that can be stored, usually measured in gigabytes (GB) or terabytes (TB).
CD, DVD, and Blu-ray (BD) technologies are classified as optical storage, which represents data as microscopic light and dark spots on the disc surface. - Correct
Answer:True
Circuit switching - Correct Answer:The method used by the telephone network to
temporarily connect one telephone with another for the duration of a call.
Client-side scripts - Correct Answer:A program code that is executed by a client's browser, as opposed to being executed by the server.
Cloud computing - Correct Answer:A process that provided access to information,
applications, communications, and storage over the Internet.
Cloud storage - Correct Answer:A storage area that is located on a remote server, usually on the Internet, rather than on a local storage device.
Communications network - Correct Answer:A collection of devices used to originate, send, route, and receive data transmissions.
Compression - Correct Answer:Any technique that recodes the data in a file so that it contains fewer bits
Compression is commonly referred to as "zipping". - Correct Answer:True
Control unit - Correct Answer:The part of the microprocessor that directs and
coordinates processing.
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