Unit 4: Data and Analysis

1

Layla is creating a pie chart to show market share. Which step is this?

A Data collection B Data cleaning C Data visualization D Data interpretation

2

Raw, unorganized facts and figures that need to be processed to become meaningful are known as:

A Data B Information C Analysis D Knowledge

3

What is the first step in data analysis?

A Decision making B Data collection C Data deletion D Reporting

4

In the context of Big Data, what does 'Velocity' refer to?

A The size of the dataset B The different types of data C The speed at which data is generated and processed D The accuracy of the data

5

Ayesha is analyzing weather data to predict rainfall. She notices that temperature and humidity are both stored as numbers. Based on her analysis, which data types are these?

A Integer and String B Float and Integer C Boolean and Float D String and Boolean

6

Hind is cleaning a dataset by standardizing date formats. What step is this?

A Data collection B Data transformation C Data visualization D Data interpretation

7

Why is unstructured data difficult to analyze?

A It is small B It lacks fixed format C It is numeric D It is accurate

8

A student's name, age, and class are examples of:

A Data B Analysis C A program D A report

9

Which characteristic of Big Data deals with the uncertainty, inconsistency, and trustworthiness of data?

A Volume B Velocity C Veracity D Variety

10

Fahd is using past accident data to predict future risk zones. This is?

A Descriptive analysis B Predictive analysis C Prescriptive analysis D Diagnostic analysis

11

Which characteristic ensures data accuracy?

A Volume B Velocity C Variety D Veracity

12

Data that is descriptive and represents categories, such as gender or city names, is called:

A Quantitative data B Qualitative data C Numerical data D Time-series data

13

Rami is storing student IDs which are always numbers. What data type should he use?

A String B Integer C Float D Boolean

14

Omar is comparing two data sources to check consistency. This is part of?

A Data collection B Data validation C Data visualization D Data storage

15

Which field mainly uses data analysis?

A Painting B Sports only C Data Science D Poetry

16

In the context of Big Data, what does 'Volume' refer to?

A The speed at which data is generated B The different types of data C The amount or size of the data D The accuracy of the data

17

Which data type has some organizational properties but does not fit into a rigid relational model? Examples include XML and JSON files.

A Structured data B Unstructured data C Raw data D Semi-structured data

18

Which of the following is an example of Big Data?

A Daily attendance sheet B Student notebook C Global social media posts D Single exam result

19

Mariam is storing boolean values for a survey (yes/no). Which data type is correct?

A Integer B Float C String D Boolean

20

Zara is creating a chart to show monthly temperature changes. Which data analysis step is she performing?

A Data collection B Data cleaning C Data visualization D Data interpretation

21

Omar is analyzing sales data and finds that some entries have missing values. What step of data analysis should he perform first?

A Data visualization B Data cleaning C Data interpretation D Data collection

22

Kareem is checking if his dataset contains errors. What step is he performing?

A Data collection B Data cleaning C Data visualization D Data analysis

23

What is the first step in the data analysis process?

A Data collection B Data cleaning C Data visualization D Data interpretation

24

Nadia is analyzing temperature data and finds outliers. What should she do next?

A Ignore them B Remove or correct them C Keep them as is D Duplicate them

25

Rahul is working on a project about social media trends. He needs to process millions of tweets per day. What characteristic of Big Data is most relevant here?

A Volume B Velocity C Variety D Veracity