Data Types

Question 1

What is analog data?

Answer 1

Data represented in a continuous and variable form.

Question 2

What does ASCII stand for?

Answer 2

American Standard Code for Information Interchange.

Question 3

What is bandwidth?

Answer 3

The maximum rate of data transfer across a network or communication channel, usually measured in bits per second.

Question 4

What is binary?

Answer 4

A numerical system that uses only two digits, zero and one, to represent data in computing.

Question 5

What is a Boolean expression?

Answer 5

A logical statement that can only be true or false and uses operators like AND, OR, and NOT.

Question 6

What is a character?

Answer 6

A single letter, digit, or symbol used in writing text.

Question 7

What is a character set?

Answer 7

A collection of characters that a computer can recognize and process, like ASCII or Unicode.

Question 8

What is a compression ratio?

Answer 8

The ratio of the original data size to the compressed data size, indicating how much the data has been reduced.

Question 9

What is a control structure?

Answer 9

Constructs in programming that control the flow of execution, such as loops and conditional statements.

Question 10

What is data?

Answer 10

Raw facts and figures that can be processed to produce meaningful information.

Question 11

What is data compression?

Answer 11

The process of reducing the size of data to save space or transmission time.

Question 12

What are data types?

Answer 12

Categories of data that define what kind of value can be stored, like integers, floats, and strings, and how it can be used.

Question 13

What is a declaration in programming?

Answer 13

A statement that specifies the name and type of a variable or function without assigning a value.

Question 14

What is digital data?

Answer 14

Data represented using discrete binary values (zeroes and ones).

Question 15

What is floating point?

Answer 15

A way to represent real numbers that can have fractional parts using a format that includes a base and an exponent.

Question 16

What is Huffman encoding?

Answer 16

A compression technique that uses variable-length codes for data representation based on frequency of occurrence.

Question 17

What is information?

Answer 17

Data that have been processed or organized in a meaningful way to be useful.

Question 18

What is an integer?

Answer 18

A whole number.

Question 19

What is keyword encoding?

Answer 19

A method of data compression that replaces frequently occurring patterns with shorter codes.

Question 20

What does lossless mean?

Answer 20

A type of data compression where no information is lost and the original data can be perfectly reconstructed.

Question 21

What does lossy mean?

Answer 21

A type of data compression that reduces file size by permanently eliminating some information, which may affect quality.

Question 22

What is numeric data?

Answer 22

Any value that is a number.

Question 23

What is overflow?

Answer 23

A condition in which a calculation exceeds the maximum value that can be represented within a given number of bits.

Question 24

What is pulse-code modulation (PCM)?

Answer 24

A method used to digitally represent analog signals.

Question 25

What is a radix point?

Answer 25

The decimal point in a number system that indicates the separation between integer and fractional parts.

Question 26

What does real refer to in data types?

Answer 26

A data type representing numbers that can have fractional parts, often called floating-point numbers.

Question 27

What is reclocking?

Answer 27

The process of refreshing the timing signals in digital data to ensure accuracy and synchronization.

Question 28

What is run-length encoding?

Answer 28

A simple compression technique that replaces sequences of repeated characters with a single character and a count.

Question 29

What is scientific notation?

Answer 29

A method of representing very large or very small numbers by using powers of 10.

Question 30

What is signed-magnitude representation?

Answer 30

A way of encoding positive and negative numbers where one bit represents the sign and the remaining bits represent the magnitude.

Question 31

What is a string in computing?

Answer 31

A sequence of characters treated as a single data element and used for text manipulation.

Question 32

What is strong typing?

Answer 32

A feature in programming languages where each variable is explicitly declared to be of a specific type, reducing errors.

Question 33

What is ten's complement?

Answer 33

A mathematical method for representing negative numbers in a decimal system.

Question 34

What is Unicode?

Answer 34

A universal character set that includes characters from virtually all writing systems, allowing for consistent encoding and representation of text globally.