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ECAT Computer Science Data Basics Test Online

Mustansar KhanLast Updated: May 1, 2025

ECAT Computer Science Data Basics Test

ECAT Computer Science Chapter 11 Data Basics Online Test

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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ECAT Data Basics Test Online MCQs

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1. Which component stores data permanently in a computer?

Cache

RAM

Hard Disk

CPU

2. Which one is an example of unstructured data?

Excel sheet

Image file

SQL table

HTML table

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

Questionnaire response

Textbook

Research article

Newspaper report

4. Which of the following statements is true?

Data is meaningful by itself

Data is always stored on paper

Data is unprocessed facts

Data equals information

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

Cleaning

Structuring

Validation

Sorting

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

Calculator

Paint

Microsoft Word

Microsoft Excel

7. Which of the following stores data temporarily?

Hard Drive

SSD

RAM

8. What does CRUD stand for?

Create, Read, Update, Delete

Convert, Run, Use, Download

Create, Run, Undo, Deliver

Count, Remove, Upload, Download

9. What is the purpose of data sampling?

To analyze entire datasets

To reduce the size of data for quicker analysis

To compress data

To encrypt data

10. Which of the following is considered structured data?

Audio files

Images

Video files

Spreadsheets

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

Monthly attendance reports

Archived research papers

Old census data

Stock market prices

12. Which of the following is qualitative data?

Age in years

Height in centimeters

Country names

Weight in kilograms

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

Data migration

Data compression

Data mining

Data cleaning

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

To print data

To delete old records

To increase data

To visually organize and define data relationships

15. What does "data processing" mean?

Converting raw data into meaningful information

Deleting data

Saving data

Typing data

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

Extracting useful patterns from large datasets

Copying files

Formatting text

Typing a report

17. What does data compression achieve?

Reduces the size of data files

Increases file size

Deletes unnecessary data

Converts data into graphics

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

Update

Insert

Encrypt

Delete

19. Which unit represents approximately 1,024 bytes?

Terabyte

Megabyte

Gigabyte

Kilobyte

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

Chalkboard

XML

JSON

CSV

21. What is structured data stored in?

Tables with rows and columns

Videos

Audio formats

Images

22. What is a database?

A collection of images

An organized collection of data

A networking device

A type of software

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

Data modeling

Data redundancy

Data mining

Data visualization

24. What is the full form of ASCII?

American Standard Code for Information Interchange

Advanced System for Computer Input and Information

American Software for Common Internet Input

Automated Standard Code for International Interface

25. Which of these best describes data encryption?

Converting data into a secure code

Printing data

Sorting records alphabetically

Storing data in the cloud

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

RAM

CPU

SSD

Mouse

27. Which one is used to display data output?

Microphone

Scanner

Monitor

Keyboard

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

Completeness

Redundancy

Timeliness

Accuracy

29. What is a data warehouse?

A place to store physical files

A large server room

A central repository of integrated data for analysis

A store for archived documents

30. Which of the following ensures data integrity?

Data duplication

Data validation

Data formatting

Data loss

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

Char

String

Boolean

Float

32. Which process combines data from different sources?

Data integration

Data cleaning

Data visualization

Data compression

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

Integer

Boolean

Character

Float

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

Instructions given to the computer

Raw facts and figures

Graphics only

Processed information

35. Which of these is quantitative data?

Type of car

Color of eyes

Age of a person

Gender

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

Kilobyte

Megabyte

Bit

Byte

37. Which one is a binary data format?

PDF

DOCX

HTML

ZIP

38. What is a record in a database?

A single data item

A single field

A row of related data

A column of values

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

USB drive

RAM

Hard disk

SSD

40. What is big data?

Small sets of data

Offline data

Data with big fonts

Extremely large and complex data sets

41. Which device is primarily used to input data?

Speaker

Monitor

Printer

Mouse

42. Which of these best describes metadata?

Compressed data

Data about data

Backup data

Processed data

43. What is the purpose of data validation?

To ensure data quality and accuracy

To color rows

To convert data to audio

To delete incorrect data

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

Sensor reading

Survey conducted by you

Official government website

Live experiment data

45. Which one is not a data type?

Integer

Boolean

Column

Float

46. What is data latency?

The security level of the data

The number of columns

The size of the database

Delay in processing or transferring data

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

Copying

Formatting

Archiving

Deleting

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

Boolean

Integer

String

Float

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

.csv

.exe

.mp3

.jpg

50. What is data redundancy?

Backing up data

Repeating data storage unnecessarily

Encrypting data

Deleting important data

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Mustansar KhanLast Updated: May 1, 2025

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ECAT Computer Science Data Basics Test Online

ECAT Computer Science Data Basics Test

ECAT Computer Science Chapter 11 Data Basics Online Test

ECAT Data Basics Test Online MCQs

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Mustansar Khan

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ECAT Computer Science Data Basics Test

ECAT Computer Science Chapter 11 Data Basics Online Test

ECAT Data Basics Test Online MCQs

Uncategorized

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Mustansar Khan

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