UTA INSY 2303 Final Exam

The _______ number system allows digital devices to represent virtually any number simply by using 0s and 1s. (Unit 1)

Binary

Most graphics software uses a process called pixel _________ to create new pixels by averaging the colors of nearby pixels. (Unit 1)

Interpolation

MIDI files are less compact than digital audio files. (Unit 1)

False

Which of the following options are well suited for using vector graphics? (Unit 1)

All of the above

A(n) _______ is the software that compresses a video stream when a video is stored, and decompresses the file when the video is played. (Unit 1)

Codec

One of the main disadvantages of MIDI is that it cannot produce vocals. (Unit 1)

True

Most music for portable media players is stored in _______ audio file formats. (Unit 1)

Compressed

Which of the following is NOT a type of bitmap format? (Unit 1)

ZIP

Instead of storing the color value for each pixel, a vector graphics file contains instructions that a computer uses to create the shape, size, position, and color for each object in an image. (Unit 1)

True

__________ is music, speech, and other sounds represented in binary format for use in digital devices. (Unit 1)

Digital audio

In the context of bitmap graphics editing, what technique employs algorithms that pull pixels from one area of an image and then apply them to another area? (Unit 1)

Cloning

Digital data can be __________ that have been converted into discrete digits such as 0s and 1s. (Unit 1)

All of the above

8-bit color depth is also called True Color. (Unit 1)

False

Both scanners and digital cameras produce vector graphics. (Unit 1)

False

Lossy compression techniques discard some data from an image to shrink its file size. (Unit 1)

True

In digital video, a lower resolution reduces the bit rate. (Unit 1)

True

TIFF, PNG, and GIF graphics formats offer lossy compression. (Unit 1)

False

A bitmap graphic is composed of a grid of tiny rectangular cells. (Unit 1)

True

Lossy compression throws away some of the original data during the compression process. (Unit 1)

True

_________ enables people to control software with spoken commands, as well as dictate text into a word processing document. (Unit 1)

Speech recognition

To conserve space, applications that require high-quality sound use low sampling rates. (Unit 1)

False

Which of the following is NOT a format that is used for digital audio? (Unit 1)

DOC

Digital photographs are stored as bitmap files. (Unit 1)

True

Digital video is a core technology for which of the following? (Unit 1)

All of the above

Which of the following is NOT a type of digital video container file? (Unit 1)

PNG

In digital video, as long as the proportion of horizontal and vertical pixels remains the same, the aspect ratio is consistent. (Unit 1)

True

Sampling _______ refers to the number of times per second that a sound is measured during the recording process. (Unit 1)

Rate

JPEG fields are compressed using lossy compression. (Unit 1)

True

Video resolutions can be expressed as width x height. (Unit 1)

True

3-D graphics are based on vectors stored as a set of instructions describing the coordinates for lines and shapes in a three-dimensional space. What do these vectors form? (Unit 1)

A wireframe

The number of frames that are displayed per second is measured in _____. (Unit 1)

Fps

A file name extension indicates the file format. (Unit 1)

True

Today's color display devices represent color using the _____ color model. (Unit 1)

RGB

Vector graphics usually require more storage space than bitmaps. (Unit 1)

False

Regardless of sampling rate, digital audio file size can be reduced using audio compression techniques. (Unit 1)

True

Plain, unformatted text is sometimes called ASCII text. (Unit 1)

True

Compressed files usually have _____ at the end of the file name. (Unit 1)

.zip

Lossy compression provides a way to compress data and reconstitute it into its original state. (Unit 1)

False

Which of the following tools would be found in 3-D graphics software? (Unit 1)

All of the above

After a vector graphic is converted to a bitmap, the resulting graphic no longer has the qualities of a vector graphic. (Unit 1)

True

Digital videos look sharpest when they are displayed at a resolution that is larger than the frame size. (Unit 1)

False

What is another term for vector graphics software? (Unit 1)

Drawing Software

A vector graphic consists of a set of instructions for creating a picture. (Unit 1)

True

The number of colors available in a graphic is referred to as color _____. (Unit 1)

Depth

Processing is handled by the computer's central processing unit (CPU). (Unit 2)

True

______ is data that is entered into a computer. ______ is the result produced by a computer. (Unit 2)

Input, Output

A slate tablet configuration is basically a screen in a narrow frame that lacks a physical keyboard. (Unit 2)

True

Intel Corporation is the world's largest chipmaker and supplies a sizeable percentage of the microprocessors that power desktops and laptops. (Unit 2)

True

Most computer ads specify the speed of a microprocessor in gigahertz. (Unit 2)

True

The term instruction cycle refers to the process in which a computer executes a single instruction.​ (Unit 2)

True

In a microprocessor, the __________ fetches instructions. (Unit 2)

Control unit

The ability to switch between programs makes computers multipurpose devices. (Unit 2)

True

In a display device, response rate is the time it takes for one pixel to change from black to white then back to black. (Unit 2)

True

Modern refrigerators, washing machines, and other appliances are controlled by integrated circuits called ____________ that combine sensors with processing circuitry. (Unit 2)

Microcontrollers

Smartwatches are multifunction devices that can include a camera, thermometer, compass, calculator, cell phone, GPS, media player, and fitness tracker. (Unit 2)

True

_________ is a temporary holding area for data and programs. (Unit 2)

RAM

During an instruction cycle, all parts of the instruction are performed by the microprocessor's control unit. (Unit 2)

False

What type of computer should you consider purchasing if you want a system that is ideal for dedicated gamers, serious designers, desktop publishers, and video editors? (Unit 2)

Desktop

A solid state drive can be used as a substitute for a hard disk drive. (Unit 2)

True

Memory cards are typically volatile. (Unit 2)

False

Computers with the same operating systems can typically use the same software and peripheral devices. (Unit 2)

True

A desktop is a portable computing device featuring a touch-sensitive screen that can be used for input as well as for output. (Unit 2)

False

The part of the data bus that runs between the microprocessor and RAM is called the _______ bus. (Unit 2)

Local

Battery life is the time your device operates before it must be recharged. (Unit 2)

True

Which of the following is an example of a computer that is a small, lightweight personal computer that is designed like a clam shell? (Unit 2)

Laptop computer

The electronic components of most digital devices are mounted on a circuit board called a ______________. (Unit 2)

All of the above

RAM is volatile. (Unit 2)

True

The operating systems for smartphones are radically different to those used for tablet computers. (Unit 2)

False

When a peripheral device is connected or disconnected while the host device is operating, it is called hot-plugging. (Unit 2)

True

When interference affects a wireless signal, data must be re-transmitted. (Unit 3)

True

Wi-Fi signals may reach up to 300 feet from the router. (Unit 3)

True

_______ are designed to provide connectivity for devices within a limited area, typically within the premises of a home, office building, business, or school. (Unit 3)

LANs

UDP is faster than TCP but does not perform error checking. (Unit 3)

True

When setting up a Wi-Fi network, the router you select should support the fastest device you'll want to use on the network. (Unit 3)

True

The most widespread wireless channels for communication networks are microwaves and RF signals. (Unit 3)

True

Which type of network cover a large geographical area and usually consists of several smaller networks, which might use different computer platforms and network technologies. (Unit 3)

WAN

You can set up Wi-Fi to use wireless mesh topology OR star topology. (Unit 3)

True

Connection speed is technically a measure of capacity. (Unit 3)

True

The organization that supervises Internet addressing is ARPANET. (Unit 3)

False

__________ LANs are usually arranged in a star topology with computers wired to central switching circuitry that is incorporated in modern routers. (Unit 3)

Ethernet

You may be able to bypass DNS outages by changing your DNS server. (Unit 3)

True

Which type of network connects smart devices or consumer electronics within a range of about 30 feet (10 meters) and without the use of wires or cables. (Unit 3)

PAN

Microwaves have more carrying capacity than radio waves. (Unit 3)

True

Suppose you wanted to run a Web server or FTP server from your home. What type of IP address would you want? (Unit 3)

Static

Which DCE would you use if you wanted to extend a wired network by adding more ports? (Unit 3)

Hub

Which type of network topology connects a peripheral device to a host device? (Unit 3)

Point-to-point

DSL is an example of what type of Internet access? (Unit 3)

Fixed

When connecting to the Internet, most Internet users connect to a Tier 1 network. (Unit 3)

False

Network discovery works in the exact same way on all devices. (Unit 3)

False

On a network, any device that stores or generates data is considered to be a(n) _____. (Unit 3)

DTE

Which of the following is an example of a DCE? (Unit 3)

All of the above

Which type of cables are used for high-capacity trunk lines that provide main routes for telephone, cable, and Internet communications? (Unit 3)

Fiber-optic cables

Wireless connections use licensed frequencies that are available for public use. (Unit 3)

False

The bandwidth of a channel that carries digital data is usually measured in _____. (Unit 3)

Bits per second

Networks can be classified according to their size and geographic scope. (Unit 3)

True

Dropbox is an example of a file hosting service. (Unit 3)

True

Which type of protocol provides a way to transfer files from one computer to another over any TCP/IP network, such as a LAN or the Internet. (Unit 3)

FTP

Which file sharing protocol distributes the role of a file server across a collection of dispersed computers? (Unit 3)

BitTorrent

Which of the following is an advantage of wired connection? (Unit 3)

All of the above

The Internet is the world's largest WAN. (Unit 3)

True