1 What is the process of finding and fixing errors in a computer program called? A Compiling B Executing C Debugging D Designing
2 What is the main benefit of data science? A Increased typing speed B Better decision making C More storage usage D Hardware improvement
3 Which step converts raw data into useful information? A Data cleaning B Data analysis C Data storage D Data collection
4 The process of cleaning and organizing raw data to make it suitable for analysis is called: A Data Deletion. B Data Preparation. C Data Guessing. D Data Hiding.
5 Which HTML attribute is used to provide additional information about an element? A class B id C style D title
7 What is the first stage of the data science life cycle? A Data visualization B Data collection C Model deployment D Data cleaning
9 Which stage involves interpreting results? A Data collection B Data cleaning C Data analysis D Data storage
10 Which sorting algorithm repeatedly swaps adjacent elements? A Selection sort B Insertion sort C Bubble sort D Merge sort
12 Which data type is based on categories like colors or names? A Quantitative B Numerical C Qualitative D Statistical
13 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security
14 Which JavaScript method converts text to a number? A Number() B String() C parseText() D toString()
15 What is the ultimate goal of analyzing data in data science? A To create colourful charts. B To make better decisions. C To collect as much data as possible. D To write long reports.
17 Which debugging technique involves checking output step by step? A Dry run B Tracing C Testing D Compilation
18 Why is data cleaning necessary? A To add errors B To improve data quality C To increase file size D To slow processing
19 Which algorithm gives the best result in minimum steps? A Efficient algorithm B Long algorithm C Simple algorithm D Manual algorithm
20 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.
21 What is the final stage of the data science life cycle? A Data collection B Data cleaning C Decision making or deployment D Data visualization
22 Which JavaScript console method is used for debugging? A console.write() B console.debug() C console.log() D console.print()
23 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
25 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.