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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.
Test Helpful For:	ECAT Entry Test Computer Online Test Interview Questions about Computer All Universities Entrance Test Recruitments Tests

ECAT Data Basics Test Online MCQs

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1. What is data latency?

The number of columns

Delay in processing or transferring data

The size of the database

The security level of the data

2. What is a record in a database?

A single field

A column of values

A single data item

A row of related data

3. Which component stores data permanently in a computer?

Cache

Hard Disk

RAM

CPU

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

Boolean

Float

Char

String

5. What is big data?

Extremely large and complex data sets

Data with big fonts

Offline data

Small sets of data

6. What is the purpose of data validation?

To color rows

To convert data to audio

To delete incorrect data

To ensure data quality and accuracy

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

Kilobyte

Byte

Megabyte

Bit

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

Delete

Encrypt

Update

Insert

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

Data mining

Data cleaning

Data compression

Data migration

10. What does "data processing" mean?

Converting raw data into meaningful information

Deleting data

Saving data

Typing data

11. Which device is primarily used to input data?

Printer

Speaker

Mouse

Monitor

12. Which of these best describes metadata?

Processed data

Data about data

Compressed data

Backup data

13. Which one is a binary data format?

PDF

DOCX

HTML

ZIP

14. Which of the following is considered structured data?

Video files

Images

Audio files

Spreadsheets

15. What is structured data stored in?

Images

Videos

Tables with rows and columns

Audio formats

16. What is data redundancy?

Deleting important data

Repeating data storage unnecessarily

Backing up data

Encrypting data

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

Float

Boolean

Character

Integer

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

Redundancy

Accuracy

Timeliness

Completeness

19. Which of the following ensures data integrity?

Data loss

Data validation

Data formatting

Data duplication

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

To visually organize and define data relationships

To print data

To increase data

To delete old records

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

Textbook

Research article

Newspaper report

Questionnaire response

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

Monthly attendance reports

Old census data

Stock market prices

Archived research papers

23. Which of these best describes data encryption?

Printing data

Storing data in the cloud

Sorting records alphabetically

Converting data into a secure code

24. Which of the following statements is true?

Data is unprocessed facts

Data is meaningful by itself

Data is always stored on paper

Data equals information

25. Which one is used to display data output?

Monitor

Scanner

Keyboard

Microphone

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

Calculator

Microsoft Word

Microsoft Excel

Paint

27. Which one is not a data type?

Column

Float

Boolean

Integer

28. What is a database?

A collection of images

A networking device

An organized collection of data

A type of software

29. Which of the following stores data temporarily?

Hard Drive

RAM

SSD

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

Data mining

Data redundancy

Data visualization

Data modeling

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

JSON

Chalkboard

XML

CSV

32. What does data compression achieve?

Deletes unnecessary data

Reduces the size of data files

Increases file size

Converts data into graphics

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

.jpg

.mp3

.csv

.exe

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

Boolean

Integer

Float

String

35. Which unit represents approximately 1,024 bytes?

Gigabyte

Terabyte

Kilobyte

Megabyte

36. Which process combines data from different sources?

Data integration

Data cleaning

Data compression

Data visualization

37. What does CRUD stand for?

Create, Run, Undo, Deliver

Convert, Run, Use, Download

Count, Remove, Upload, Download

Create, Read, Update, Delete

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

Structuring

Sorting

Cleaning

Validation

39. What is the purpose of data sampling?

To compress data

To reduce the size of data for quicker analysis

To encrypt data

To analyze entire datasets

40. What is a data warehouse?

A large server room

A store for archived documents

A place to store physical files

A central repository of integrated data for analysis

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

Live experiment data

Official government website

Sensor reading

Survey conducted by you

42. Which of the following is qualitative data?

Height in centimeters

Age in years

Weight in kilograms

Country names

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

Graphics only

Instructions given to the computer

Raw facts and figures

Processed information

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

Formatting text

Typing a report

Copying files

Extracting useful patterns from large datasets

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

SSD

Hard disk

USB drive

RAM

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

Archiving

Deleting

Formatting

Copying

47. Which one is an example of unstructured data?

HTML table

Image file

SQL table

Excel sheet

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

RAM

SSD

Mouse

CPU

49. 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

50. Which of these is quantitative data?

Age of a person

Color of eyes

Type of car

Gender

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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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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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