Computer Science with Python Class XI Quiz
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Questions and Answers

What programming language is used in the textbook provided?

Python

Python is a compiled language.

False

What are the two main types of working modes in Python?

  • Interactive and Script (correct)
  • Compile and Script
  • Script and Batch
  • Interactive and Compile

    • What is the term used for a single line comment in Python?

    <p>Hash symbol (#)</p> Signup and view all the answers

    Which of the following is NOT a valid identifier in Python?

    <p>break</p> Signup and view all the answers

    What is the name of the function that displays output in Python?

    <p>print()</p> Signup and view all the answers

    Which of the following is a valid string literal in Python?

    <p>Hello World</p> Signup and view all the answers

    What is the purpose of the 'in' operator in Python?

    <p>Membership checking</p> Signup and view all the answers

    Python is a case-sensitive language.

    <p>True</p> Signup and view all the answers

    What are the four basic elements of a Python program?

    <p>Expressions, statements, comments, and indentation</p> Signup and view all the answers

    What is the difference between a variable and an identifier?

    <p>An identifier is a name given to a variable, function, or other object in a program, while a variable is a named storage location that holds a value.</p> Signup and view all the answers

    Variables in Python are mutable.

    <p>True</p> Signup and view all the answers

    What is the main purpose of a conditional statement in Python?

    <p>To control the flow of execution based on a condition.</p> Signup and view all the answers

    What is the main purpose of an iteration statement in Python?

    <p>To execute a set of statements repeatedly.</p> Signup and view all the answers

    What is the purpose of the range() function in Python?

    <p>To generate a sequence of numbers</p> Signup and view all the answers

    Which of the following is a valid use of the 'in' operator?

    <p>3 in [3,4,5]</p> Signup and view all the answers

    What is the difference between a 'for' loop and a 'while' loop in Python?

    <p>'for' loop iterates over a sequence of values a specified number of times, 'while' loop continues until a condition becomes False.</p> Signup and view all the answers

    What is the purpose of the break statement in a loop?

    <p>To exit the loop prematurely.</p> Signup and view all the answers

    What is the purpose of the continue statement in a loop?

    <p>To skip the current iteration of the loop and jump to the next one.</p> Signup and view all the answers

    What is meant by 'nesting' of loops?

    <p>A loop inside the body of another loop.</p> Signup and view all the answers

    What are the three main types of data in Python?

    <p>Numbers, strings, and sequences</p> Signup and view all the answers

    What is the difference between mutable and immutable data types in Python?

    <p>Mutable data types allow their values or elements to be changed 'in place', while immutable data types do not.</p> Signup and view all the answers

    Which of the following is an immutable data type in Python?

    <p>Tuple</p> Signup and view all the answers

    What are the three main types of operators in Python?

    <p>Arithmetic, relational, and logical operators</p> Signup and view all the answers

    The division operator '/' in Python always returns a floating-point number.

    <p>True</p> Signup and view all the answers

    What is the difference between '==' and 'is' operators in Python?

    <p>The '==' operator checks for equality of values, while 'is' operator checks for identity (whether two variables refer to the same object in memory).</p> Signup and view all the answers

    What are the main features of a dictionary in Python?

    <p>Collections of key-value pairs, unordered, and mutable.</p> Signup and view all the answers

    What is the purpose of the 'len()' function in Python?

    <p>To return the length of a sequence.</p> Signup and view all the answers

    What is the difference between a list and a tuple in Python?

    <p>Lists are mutable, tuples are immutable.</p> Signup and view all the answers

    Python allows you to sort a list 'in place' using the sort() method.

    <p>True</p> Signup and view all the answers

    What is the purpose of a sorting algorithm?

    <p>To arrange items in a specific order.</p> Signup and view all the answers

    Which of the following sorting algorithms is known for its efficiency with smaller datasets?

    <p>Insertion Sort</p> Signup and view all the answers

    What is the purpose of a 'for' loop in a nested loop structure?

    <p>It iterates over each element in the outer sequence, and the inner loop executes for each iteration of the outer loop.</p> Signup and view all the answers

    What is the purpose of debugging in programming?

    <p>To identify and fix errors in a program.</p> Signup and view all the answers

    Syntax errors are usually easier to detect and correct than runtime errors.

    <p>True</p> Signup and view all the answers

    What is the purpose of exception handling in programming?

    <p>To provide a controlled way to handle errors and unexpected events that occur during program execution.</p> Signup and view all the answers

    What are the keywords used for exception handling in Python?

    <p>try, except, else, and finally.</p> Signup and view all the answers

    What is the purpose of the 'append()' method in Python?

    <p>To add an element to the end of a list.</p> Signup and view all the answers

    What is the purpose of the 'remove()' method in Python?

    <p>To remove the first occurrence of a specific value from a list.</p> Signup and view all the answers

    Signup and view all the answers

    Study Notes

    Computer Science with Python Textbook for Class XI

    • The textbook is for Class XI students, following the CBSE curriculum.
    • It covers four units: Programming & Computational Thinking, Computer System & Organization, Data Management, and Society, Law, and Ethics.
    • Unit 1: Programming and Computational Thinking (PCT-1) covers Python basics, fundamentals, conditional and iterative constructs, strings, lists, tuples, dictionaries, sorting and program debugging techniques.
    • Unit 2: Computer Systems and Organization (CSO) covers basic computer organization, boolean logic, data representation, and program execution.
    • Unit 3: Data Management (DM-1) discusses relational database concepts, SQL basics, table creation, manipulation, querying and indexes. It also covers the basics of NoSQL databases like MongoDB.
    • Unit 4: Society, Law, and Ethics (SLE-1) covers cyber safety basics, social networking guidelines, and data security.
    • The book includes practice exercises and a practical book ('Progress In') for additional practice to further reinforce the concepts.

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    Sumita Arora Class XI Computer Science With Python PDF

    Description

    Test your knowledge with this quiz based on the Computer Science textbook for Class XI students under the CBSE curriculum. Covering key concepts from programming, computer organization, data management, and societal impacts of technology, this quiz will help solidify your understanding of the material. Perfect for preparing for exams or enhancing your learning experience.

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