1 Which type of loop in JavaScript continues to run as long as a specified condition is true? A for loop B while loop C if statement D switch statement
2 Which of the following is not a stage of data science life cycle? A Data collection B Data cleaning C Hardware installation D Data analysis
3 In HTML5, which tag is used to define a footer for a document or a section? A <bottom> B <footer> C <end> D <section>
4 What helps users quickly grasp complex data? A Raw tables B Long text C Data visualization D Manual calculations
7 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.
8 Which CSS property is used to change text color? A font-style B text-color C color D background-color
9 Which JavaScript method is used to add a new item to the end of an array? A shift() B pop() C push() D join()
10 Which CSS pseudo-class is used to select and style an element when you move your mouse over it? A :hover B :active C :focus D :link
11 Which sorting algorithm repeatedly swaps adjacent elements? A Selection sort B Insertion sort C Bubble sort D Merge sort
13 Which error is detected during program execution? A Syntax error B Logical error C Runtime error D Typographical error
14 Which data type is based on categories like colors or names? A Quantitative B Numerical C Qualitative D Statistical
15 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.
16 Which HTML attribute is used to provide additional information about an element? A class B id C style D title
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 Data that has been collected but has not been processed or cleaned is called: A Final Data B Clean Data C Useful Data D Raw Data
20 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security