1 Which step helps stakeholders understand results easily? A Data visualization B Data collection C Data cleaning D Data storage
2 A chart that shows data as a circle divided into slices is called a...? A Line graph. B Bar chart. C Pie chart. D Flowchart.
3 What is the first stage of the data science life cycle? A Data visualization B Data collection C Model deployment D Data cleaning
4 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security
5 Which CSS property is used to change text color? A font-style B text-color C color D background-color
7 What is the purpose of decision making in data science? A To collect more data B To take actions based on insights C To clean data D To visualize data
10 A map showing the population in different cities of a country is an example of: A Data Visualization. B A text document. C A computer program. D A spreadsheet formula.
12 Which chart is best for showing parts of a whole, like the percentage of students who like different fruits? A Line chart B Scatter plot C Flowchart D Pie chart
14 What is often the first step in the Data Science Life Cycle? A Data Acquisition (getting the data). B Building a website for the data. C Selling the final results. D Presenting the conclusion.
15 Which CSS property is used to change the background color of an element? A color B bgcolor C background-color D background-style
17 Which JavaScript console method is used for debugging? A console.write() B console.debug() C console.log() D console.print()
18 Which tool in a web browser helps developers see errors and messages from their JavaScript code? A The address bar B The console C The settings menu D The history tab
21 In JavaScript, what is used to make decisions and execute different code based on a condition? A A loop B A function C A variable D An if-else statement
22 What is the main benefit of data science? A Increased typing speed B Better decision making C More storage usage D Hardware improvement
23 What does qualitative data describe? A Numbers only B Measurements C Qualities or characteristics D Calculations
25 Which of these is a common type of chart used for data visualization? A A text document. B An audio file. C A computer program. D A bar chart.
26 Which of the following is a data visualization tool? A Spreadsheet charts B Compiler C Antivirus D Text editor
29 Why is data cleaning necessary? A To add errors B To improve data quality C To increase file size D To slow processing
30 What helps users quickly grasp complex data? A Raw tables B Long text C Data visualization D Manual calculations
31 Which stage of the Data Science Life Cycle involves presenting the findings to others? A Data Acquisition. B Data Preparation. C Model Building. D Communication.
33 Which of the following is an example of data? A Student marks list B Final report C Decision D Conclusion
35 What is a named block of code in JavaScript that performs a specific task and can be called multiple times? A A function B A loop C An array D A condition
37 Which chart is commonly used to compare categories? A Line chart B Bar chart C Scatter plot D Histogram
38 Which JavaScript method is used to add a new item to the end of an array? A shift() B pop() C push() D join()
39 Which data science step comes just before decision making? A Data visualization B Data collection C Data cleaning D Data storage
40 What is the main purpose of CSS (Cascading Style Sheets)? A To add interactivity to a website. B To store data for a website. C To create the structure of a website. D To control the visual style and layout of a website.