Deck 2: Business Information

Question 1

Raster graphics involves the use of binary codes to represent object type,size,and orientation.

Answer 1

False

Question 2

When transmitting video information,compression ratios can range as high as 100:1 with little loss of perceived quality.

Answer 2

True

Question 3

Voice communication can only be done using an analog signal.

Answer 3

False

Question 4

Standard voice telephone lines,such as those found in residences,limit bandwidth to:

A)300 Hz
B)3,400 Hz
C)20,000 Hz
D)1,410,000 Hz

Question 5

When using analog communications,channel capacity is measured in hertz (Hz)where 1 Hz equals 1000 oscillations per second.

Question 6

Which of the following represents a digital form of information?

A)a gas gauge
B)a fax transmission
C)a watch that displays time as HH:MM
D)a page filled with English prose

Question 7

Services transmitting video information use a series of vector images to represent moving images.

Question 8

When using data communications with 8-bit codes,the number of alphabetic symbols

A)must be exactly 256
B)must be exactly 512
C)can be greater than 1024 bytes
D)must be less than 256

Question 9

System response time and system cost are closely related to each other.

Question 10

Response time is extremely important when implementing email systems.

Question 11

PBX and Centrex systems provide similar functionality from the users point-of-view.

Question 12

A stereo compact disc typically requires the bandwidth for each channel to be:

A)300 Hz
B)3,400 Hz
C)8,000 Hz
D)20,000 Hz

Question 13

The terms byte and octet describe the same amount of information.

Question 14

Interlacing is a method of reducing the bandwidth requirements for video transmissions.

Question 15

The Joint Photographic Experts Group (JPEG)is a collaborative standards-making effort between ISO and ITU-T.

Question 16

A single bit of information represents two states or values.

Question 17

Which of the following represents the most basic unit of digital information?

A)byte
B)nibble
C)pixel
D)bit

Question 18

Today,all networked information is sent using digital formats.

Question 19

Common examples of data include text and numerical information.

Question 20

The United States national version of IRA is referred to as the American Standard Code for Information Interchange (ASCII).

Question 21

The _________ service supports the communication of individual pictures,charts,or drawings.

Question 22

In digital systems,the information rate and the capacity of a digital channel are measured in:

A)mhz
B)dps
C)bps
D)ghz

Question 23

A __________ system uses a sequence of discrete,discontinuous values or symbols to represent information.

Question 24

________ files contain very little formatting and do not support formatting such as boldface,italics,or underline.

Question 25

A ________ is the smallest single component of a digital image.

A)RGB
B)megapixel
C)pixel
D)none of the above

Question 26

_________ is a 16-bit code that is backward compatible with IRA / ASCII.

Question 27

With _________ compression receivers can reproduce an exact digital duplicate of the original audio stream transmitted by the sender by expanding / decompressing the file that is received.

Question 28

The number of different characters that can be represented in the International Reference Alphabet text code is:

A)512
B)256
C)128
D)64

Question 29

_________ is capable of representing symbols and characters used in all the major languages spoken around the world.

A)UTF-8
B)ASCII
C)IRA
D)UCST

Question 30

The time interval between when a user presses a key and when the result of that action arrives at his or her workstation is called the:

A)response time
B)turn-around time
C)think time
D)delay time

Question 31

When _________ compression is used,irreversible changes are made to the original file that diminish the quality of the original audio stream when the receiver decompresses the file.

Question 32

A _________ is an on-premise telephone switch,owned or leased by an organization that interconnects the telephones at that location and provides outside access to the public telephone systems and other voice services.

Question 33

_________ screens use thin sandwiches of glass containing a liquid-crystal material to display images.

A)PDF
B)LCD
C)CRT
D)all of the above

Question 34

Some of the International Reference Alphabet text code patterns represent invisible,nonprintable characters called __________.

Question 35

Analog information sources include:

A)sounds
B)music
C)video
D)all of the above

Question 36

_________ images are the most common type of image being transmitted over today's enterprise networks.

A)Color
B)Black and white
C)Pixilated
D)Grayscale

Question 37

The _________ (IRA)character set is the most common format for English language text files.

Question 38

Historically,the most commonly used text code is the __________,in which each character in this code is represented by a unique 7-bit pattern.

A)UTF-8
B)IRA
C)Morse code
D)none of the above

Question 39

Nondigital __________ systems use a continuous range of values to represent Information.

Question 40

________ consists of information that can be represented by a finite alphabet of symbols,such as the numbers 0 through 9 or the symbols represented on a computer keyboard.

Question 41

A representation of images that uses an array of pixels is called ______.

Question 42

_________ is a subjective measure of the user's perception of the overall value of the network application or service.

Question 43

________ is a page-description language that is built into many desktop printers and virtually all high-end printing systems.

Question 44

A representation of images that uses straight and curved line segments is called ________.