data representation

Question 1

What is data representation?

Answer 1

Data representation is the method of storing, processing, and transmitting data in a format that can be understood by computers.

Question 2

True or False: Data representation only involves numerical data.

Answer 2

False

Question 3

Fill in the blank: In binary representation, the digits used are _____ and _____.

Answer 3

0, 1

Question 4

What is the binary equivalent of the decimal number 10?

Answer 4

1010

Question 5

Which of the following is a common data representation format? A) JSON B) HTML C) XML D) All of the above

Answer 5

D) All of the above

Question 6

What does ASCII stand for?

Answer 6

American Standard Code for Information Interchange

Question 7

True or False: Unicode can represent characters from multiple languages.

Answer 7

True

Question 8

What is the primary purpose of data encoding?

Answer 8

To convert data into a format suitable for transmission or storage.

Question 9

Fill in the blank: A _____ is a collection of bits that represent a single character.

Answer 9

byte

Question 10

What is the hexadecimal representation of the decimal number 255?

Answer 10

FF

Question 11

True or False: Data representation does not affect data integrity.

Answer 11

False

Question 12

What is a common use of binary trees in data representation?

Answer 12

To efficiently store and retrieve hierarchical data.

Question 13

What is the purpose of using compression in data representation?

Answer 13

To reduce the size of data for storage or transmission.

Question 14

Which data representation format uses tags to define elements? A) JSON B) XML C) CSV D) TXT

Answer 14

B) XML

Question 15

What is the main advantage of using a floating-point representation?

Answer 15

It allows for the representation of very large or very small numbers.

Question 16

Fill in the blank: The process of converting data from one format to another is known as _____ .

Answer 16

transcoding

Question 17

True or False: Data representation is only relevant in computer science.

Answer 17

False

Question 18

What does the term ‘metadata’ refer to?

Answer 18

Data that provides information about other data.

Question 19

What is a key benefit of using structured data representation?

Answer 19

It enhances data retrieval and analysis.

Question 20

Which of the following is NOT a characteristic of good data representation? A) Clarity B) Consistency C) Ambiguity D) Accuracy

Answer 20

C) Ambiguity

Question 21

Fill in the blank: A _____ is a standard format for exchanging data between systems.

Answer 21

protocol

Question 22

What is the main purpose of data normalization in databases?

Answer 22

To reduce data redundancy and improve data integrity.

Question 23

True or False: Data representation techniques do not evolve over time.

Answer 23

False

Question 24

What is the significance of the term ‘endianness’ in data representation?

Answer 24

It refers to the order in which bytes are arranged in memory.

Question 25

What is a common format for representing tabular data?

Answer 25

CSV (Comma-Separated Values)

Question 26

Fill in the blank: Data represented in a _____ format is often easier for humans to read.

Answer 26

text