3 Which CSS property is used to change text color? A font-style B text-color C color D background-color
6 Which HTML attribute is used to provide additional information about an element? A class B id C style D title
7 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 algorithm searches an element by dividing the list into halves? A Linear search B Bubble sort C Binary search D Selection sort
18 Which sorting algorithm repeatedly swaps adjacent elements? A Selection sort B Insertion sort C Bubble sort D Merge sort
19 Which algorithm compares each element with all others? A Binary search B Linear search C Quick sort D Merge sort
20 What is the main purpose of an algorithm? A Store data B Design webpages C Solve a problem step by step D Write HTML code
21 Which JavaScript method is used to find the length of an array? A size() B count() C length D total()
23 Which error occurs due to wrong logic in a program? A Syntax error B Runtime error C Logical error D System error
24 Which JavaScript console method is used for debugging? A console.write() B console.debug() C console.log() D console.print()
25 Which testing method checks individual units of code? A System testing B Integration testing C Unit testing D Acceptance testing
29 Which algorithm is best for large sorted data? A Linear search B Binary search C Bubble sort D Insertion sort
31 Which error is detected during program execution? A Syntax error B Logical error C Runtime error D Typographical error
36 Which testing ensures the program meets user requirements? A Unit testing B Integration testing C System testing D Acceptance testing
38 Which JavaScript method converts text to a number? A Number() B String() C parseText() D toString()
39 Which algorithm gives the best result in minimum steps? A Efficient algorithm B Long algorithm C Simple algorithm D Manual algorithm
40 Which debugging technique involves checking output step by step? A Dry run B Tracing C Testing D Compilation
43 What is data science mainly concerned with? A Writing computer games B Extracting knowledge from data C Repairing hardware D Designing websites
44 Which of the following best defines data? A Processed information B Unorganized facts and figures C Final reports D Computer programs
45 Which field combines statistics, programming, and domain knowledge? A Networking B Web development C Data science D Cyber security
46 What is the first stage of the data science life cycle? A Data visualization B Data collection C Model deployment D Data cleaning
47 Which stage involves removing errors and inconsistencies from data? A Data collection B Data cleaning C Data visualization D Data storage
48 What is data visualization? A Storing data in files B Representing data in graphical form C Deleting unwanted data D Writing algorithms
49 Which of the following is a data visualization tool? A Spreadsheet charts B Compiler C Antivirus D Text editor
50 Why is data visualization important? A It increases storage size B It makes data easier to understand C It deletes duplicate data D It hides information
52 Which chart is commonly used to compare categories? A Line chart B Bar chart C Scatter plot D Histogram
54 What is the main goal of data analysis? A To design hardware B To find patterns and insights C To type documents D To send emails
55 Which stage comes after data collection? A Data cleaning B Data visualization C Deployment D Decision making
56 Which stage involves interpreting results? A Data collection B Data cleaning C Data analysis D Data storage
57 Which of the following is an example of data? A Student marks list B Final report C Decision D Conclusion
58 What type of data is represented using numbers? A Qualitative data B Quantitative data C Text data D Image data
59 What does qualitative data describe? A Numbers only B Measurements C Qualities or characteristics D Calculations
60 Which visualization helps identify relationships between variables? A Pie chart B Bar chart C Scatter plot D Table
61 Which step converts raw data into useful information? A Data cleaning B Data analysis C Data storage D Data collection
62 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
63 Which skill is essential for a data scientist? A Drawing skills B Statistical analysis C Hardware repair D Typing speed
64 What does data collection involve? A Presenting data in charts B Gathering raw data from sources C Deleting data D Printing reports
66 Why is data cleaning necessary? A To add errors B To improve data quality C To increase file size D To slow processing
67 Which visualization is best for showing frequency distribution? A Histogram B Pie chart C Line chart D Map
68 What does a bar chart display? A Trends over time B Categories and values C Geographic data D Random data
69 Which step helps stakeholders understand results easily? A Data visualization B Data collection C Data cleaning D Data storage
70 Which software is commonly used for basic data visualization? A Spreadsheet software B Operating system C Antivirus software D Compiler
71 What is meant by data analysis? A Collecting data B Storing data C Examining data to draw conclusions D Deleting data
72 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
74 Which data type is based on categories like colors or names? A Quantitative B Numerical C Qualitative D Statistical
75 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
76 Which visualization is best for comparing percentages? A Pie chart B Line chart C Scatter plot D Histogram
77 What kind of chart uses dots to show data points? A Bar chart B Line chart C Scatter plot D Pie chart
78 Which stage focuses on presenting findings? A Data cleaning B Data visualization C Data collection D Data storage
80 Which life cycle stage checks data accuracy? A Data collection B Data cleaning C Data visualization D Decision making
82 What is the main benefit of data science? A Increased typing speed B Better decision making C More storage usage D Hardware improvement
83 Which stage uses charts and graphs? A Data cleaning B Data visualization C Data collection D Data storage
84 Which data science step comes just before decision making? A Data visualization B Data collection C Data cleaning D Data storage
85 What helps users quickly grasp complex data? A Raw tables B Long text C Data visualization D Manual calculations
86 Which language is used to define the structure and content of a web page? A CSS B JavaScript C HTML D Python
87 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.
88 In JavaScript, which keyword is used to declare a variable that can be changed later? A let B const C var D variable
89 Which JavaScript construct is used to repeat a block of code a certain number of times? A if-else statement B for loop C function D switch statement
90 What is the process of finding and fixing errors in a computer program called? A Compiling B Executing C Debugging D Designing
92 What is a set of step-by-step instructions for a computer to solve a problem called? A An algorithm B A variable C A syntax D A comment
93 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
94 Which HTML5 tag is used to define the main content of a document, separate from the header and footer? A <header> B <footer> C <main> D <article>
95 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
96 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
97 Which CSS property is used to add rounded corners to an element? A border-style B border-radius C corner-style D box-shadow
98 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
99 In HTML5, which tag is used to define a footer for a document or a section? A <bottom> B <footer> C <end> D <section>
100 Which JavaScript method is used to add a new item to the end of an array? A shift() B pop() C push() D join()
101 What will the `console.log(typeof "Hello")` command show in the JavaScript console? A number B boolean C object D string
102 In programming, a set of step-by-step instructions to solve a problem is called a/an: A Variable B Function C Comment D Algorithm
103 What is an error in the code's grammar or spelling called? A Runtime error B Logical error C Syntax error D User error
104 Which tool in a web browser is most commonly used by developers to find and fix errors in JavaScript code? A The browser's console B The history tab C The settings menu D The bookmarks bar
105 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
106 What is Data Science? A The art of drawing pictures on a computer. B The process of building computer hardware. C The study of data to find useful information and patterns. D The process of creating animations and games.
107 Which of the following is a common way to visually represent data? A Writing a long paragraph. B Creating a bar chart. C Recording an audio file. D Sending a text message.
108 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.
109 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.
110 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.
111 What is the main role of a data scientist? A To repair computer hardware. B To design computer motherboards. C To analyze data and find useful insights. D To manage the school's computer lab.
112 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
113 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.
114 In which stage of the data science life cycle are models built to find patterns? A Data Analysis B Data Collection C Problem Definition D Data Deletion
115 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.
116 What is the final stage of the data science life cycle where the results are shared with others? A Data Acquisition B Data Preparation C Communication / Visualization D Asking a question
117 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
118 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.
119 Which of the following is the first step in the Data Science Life Cycle? A Building a model. B Collecting data. C Visualizing data. D Cleaning data.
120 What is the main purpose of Data Visualization? A To store data in a database. B To make the computer run faster. C To represent data graphically for easy understanding. D To write complex algorithms.
121 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.
122 The process of removing errors and inconsistencies from data is called? A Data Cleaning. B Data Collection. C Data Modeling. D Data Visualization.
123 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.
124 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.
125 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.