1 Which tool is commonly used for data visualization? A Microsoft Excel B Notepad C Calculator D Paint
2 Which CSS property is used to change the background color of an element? A color B bgcolor C background-color D background
3 Which JavaScript function is used to handle a user's click event on a button? A onclick B onmouseover C onload D onsubmit
4 Which storage technique is best for handling large volumes of unstructured data? A Spreadsheets B Relational databases C NoSQL databases D Data warehouses
5 Which of the following is an application of Big Data? A Weather forecasting B Typing a letter C Drawing a picture D Playing a game
6 Which of the following is an example of quantitative data? A Gender B Nationality C Age D Blood type
7 In JavaScript, what does the 'function' keyword do? A Declares a variable B Defines a function C Calls a function D Creates a loop
8 What is the purpose of the <title> tag in HTML? A To define a heading in the body B To specify the title of the document shown in the browser tab C To create a tooltip D To add a comment
9 Which of the following best describes pseudocode? A A graphical representation of an algorithm B A programming language with strict syntax C A structured English-like description of an algorithm D A type of flowchart symbol
10 What is a domain name? A A name that identifies a website on the internet B A type of web browser C A server location D A programming language
11 What is the first step in the data science workflow? A Data cleaning B Data collection C Data visualization D Data modeling
12 What is data science? A The study of computer hardware B The study of extracting insights from data C The study of programming languages D The study of network security
13 Which CSS property is used to change the text color of an element? A background-color B font-size C color D text-align
14 Which of the following is a cloud storage service? A Google Drive B Microsoft Word C Adobe Photoshop D VLC Media Player
15 Which principle of computational thinking deals with understanding the problem clearly? A Problem Understanding B Solution Selection C Algorithm Design D Debugging
16 What is the term for raw, unorganized facts and figures? A Information B Data C Knowledge D Insight
17 Which JavaScript method is used to display an alert box? A prompt() B alert() C confirm() D message()
18 What does Big Data refer to? A Small amount of data B Very large and complex data sets C Only text data D Data stored on a pen drive
19 What is the main advantage of using flowcharts? A They are easy to understand visually B They run faster C They use less memory D They are machine code
20 What does time complexity measure? A Memory usage B Number of steps an algorithm takes C Number of errors D Code length
21 What is the purpose of a dry run in algorithm development? A To execute the algorithm on a computer B To manually trace the algorithm with sample data to check its logic C To measure the actual execution time D To compile the algorithm
23 Which type of data describes qualities or characteristics? A Quantitative data B Qualitative data C Structured data D Unstructured data
24 Which storage technique is best for storing large amounts of unstructured data? A Spreadsheet B Relational database C NoSQL database D Flat file
25 Where is the correct place to insert a JavaScript file in an HTML document? A In the <head> section B In the <body> section C After the </html> tag D Anywhere in the document