1 Which JavaScript console method is used for debugging? A console.write() B console.debug() C console.log() D console.print()
2 The process of removing errors and inconsistencies from data is called? A Data Cleaning. B Data Collection. C Data Modeling. D Data Visualization.
4 Which testing method checks individual units of code? A System testing B Integration testing C Unit testing D Acceptance testing
5 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security
6 What does qualitative data describe? A Numbers only B Measurements C Qualities or characteristics D Calculations
7 In JavaScript, which keyword is used to declare a variable that can be changed later? A let B const C var D variable
8 Which sorting algorithm repeatedly swaps adjacent elements? A Selection sort B Insertion sort C Bubble sort D Merge sort
9 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.
10 What is Data Science mainly about? A Getting knowledge and insights from data. B Creating computer hardware. C Designing websites. D Writing computer programs only.
11 What is data science mainly concerned with? A Writing computer games B Extracting knowledge from data C Repairing hardware D Designing websites
14 Which CSS property is used to change the background color of an element? A color B bgcolor C background-color D background-style
15 What is the main purpose of Data Visualization? A To make data more complicated. B To hide the important facts in data. C To use as many colors as possible. D To help understand trends and patterns easily.
17 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
18 What does 'data' mean in the context of data science? A Only pictures and videos. B A collection of facts, such as numbers, words, or measurements. C Only the software on a computer. D The physical parts of a computer like the mouse and keyboard.
19 What does a bar chart display? A Trends over time B Categories and values C Geographic data D Random data