Computer Data Basics Test Online

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Question 1

1. Which of the following is not a basic operation in a database?

Question 2

2. Which of the following is a secondary source of data?

Answer

Sensor reading

Answer

Live experiment data

Answer

Survey conducted by you

Answer

Official government website

Question 3

3. What is the full form of ASCII?

Answer

Automated Standard Code for International Interface

Answer

American Standard Code for Information Interchange

Answer

American Software for Common Internet Input

Answer

Advanced System for Computer Input and Information

Question 4

4. Which data type is used to store true/false values?

Question 5

5. Which term refers to the visual representation of data?

Answer

Data mining

Answer

Data modeling

Answer

Data redundancy

Answer

Data visualization

Question 6

6. Which of the following is not a characteristic of good quality data?

Answer

Completeness

Answer

Redundancy

Answer

Timeliness

Question 7

7. Which of the following is used for data storage?

Question 8

8. Which of these best describes data encryption?

Answer

Printing data

Answer

Converting data into a secure code

Answer

Storing data in the cloud

Answer

Sorting records alphabetically

Question 9

9. Which of the following is a numeric data type?

Question 10

10. Which of the following stores data temporarily?

Answer

Hard Drive

Question 11

11. Which one is a binary data format?

Question 12

12. What is data latency?

Answer

The security level of the data

Answer

The number of columns

Answer

Delay in processing or transferring data

Answer

The size of the database

Question 13

13. Which process combines data from different sources?

Answer

Data compression

Answer

Data integration

Answer

Data cleaning

Answer

Data visualization

Question 14

14. Which of the following is qualitative data?

Answer

Height in centimeters

Answer

Country names

Answer

Weight in kilograms

Answer

Age in years

Question 15

15. Which of the following is not a digital data format?

Answer

Chalkboard

Question 16

16. What is a record in a database?

Answer

A column of values

Answer

A single field

Answer

A row of related data

Answer

A single data item

Question 17

17. What does the term "data" refer to?

Answer

Raw facts and figures

Answer

Processed information

Answer

Instructions given to the computer

Answer

Graphics only

Question 18

18. Which one is not a data type?

Question 19

19. What is a data warehouse?

Answer

A central repository of integrated data for analysis

Answer

A store for archived documents

Answer

A large server room

Answer

A place to store physical files

Question 20

20. What is structured data stored in?

Answer

Tables with rows and columns

Answer

Audio formats

Question 21

21. Which of the following is an example of data mining?

Answer

Copying files

Answer

Typing a report

Answer

Extracting useful patterns from large datasets

Answer

Formatting text

Question 22

22. Which of the following can be used to analyze data?

Answer

Microsoft Excel

Answer

Calculator

Answer

Microsoft Word

Question 23

23. Which of the following is the smallest unit of data in a computer?

Question 24

24. Which device is primarily used to input data?

Question 25

25. What is data redundancy?

Answer

Backing up data

Answer

Encrypting data

Answer

Repeating data storage unnecessarily

Answer

Deleting important data

Question 26

26. What does CRUD stand for?

Answer

Count, Remove, Upload, Download

Answer

Create, Run, Undo, Deliver

Answer

Create, Read, Update, Delete

Answer

Convert, Run, Use, Download

Question 27

27. Which of the following is an example of real-time data?

Answer

Old census data

Answer

Archived research papers

Answer

Monthly attendance reports

Answer

Stock market prices

Question 28

28. What does "data processing" mean?

Answer

Deleting data

Answer

Typing data

Answer

Saving data

Answer

Converting raw data into meaningful information

Question 29

29. Which of these best describes metadata?

Answer

Data about data

Answer

Processed data

Answer

Compressed data

Answer

Backup data

Question 30

30. Which process refers to making backup copies of data?

Answer

Formatting

Question 31

31. What is the process of identifying and correcting errors in data called?

Answer

Data migration

Answer

Data compression

Answer

Data mining

Answer

Data cleaning

Question 32

32. Which of the following is considered volatile data storage?

Question 33

33. Which of the following is considered structured data?

Answer

Audio files

Answer

Video files

Answer

Spreadsheets

Question 34

34. What does data compression achieve?

Answer

Reduces the size of data files

Answer

Converts data into graphics

Answer

Increases file size

Answer

Deletes unnecessary data

Question 35

35. Which of the following statements is true?

Answer

Data is unprocessed facts

Answer

Data is always stored on paper

Answer

Data is meaningful by itself

Answer

Data equals information

Question 36

36. What is big data?

Answer

Extremely large and complex data sets

Answer

Small sets of data

Answer

Offline data

Answer

Data with big fonts

Question 37

37. What is the primary purpose of a data model?

Answer

To increase data

Answer

To visually organize and define data relationships

Answer

To print data

Answer

To delete old records

Question 38

38. Which of these is quantitative data?

Answer

Color of eyes

Answer

Age of a person

Answer

Type of car

Question 39

39. Which of the following data types is used to represent textual data?

Question 40

40. Which of the following formats is commonly used to store tabular data?

Question 41

41. What is the purpose of data validation?

Answer

To convert data to audio

Answer

To color rows

Answer

To ensure data quality and accuracy

Answer

To delete incorrect data

Question 42

42. Which component stores data permanently in a computer?

Question 43

43. Which unit represents approximately 1,024 bytes?

Question 44

44. Which of the following is a primary source of data?

Answer

Questionnaire response

Answer

Newspaper report

Answer

Research article

Question 45

45. Which of the following ensures data integrity?

Answer

Data formatting

Answer

Data validation

Answer

Data duplication

Question 46

46. What is the purpose of data sampling?

Answer

To compress data

Answer

To encrypt data

Answer

To reduce the size of data for quicker analysis

Answer

To analyze entire datasets

Question 47

47. What is a database?

Answer

An organized collection of data

Answer

A type of software

Answer

A networking device

Answer

A collection of images

Question 48

48. Which one is used to display data output?

Answer

Microphone

Question 49

49. Which one is an example of unstructured data?

Answer

Excel sheet

Answer

HTML table

Answer

Image file

Question 50

50. Which process refers to arranging data in a specific order?

Answer

Validation

Answer

Structuring

Question 51

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Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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