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11th-sample-4
Class 11 Computer Science Assessment
Which of the following is a valid dictionary declaration?
In Python, what is the data type of the result of 'input()' function?
What is the output of bool('False')?
Which of these is used to define a block of code in Python?
Which of the following functions is used to find the length of a string?
Which loop is used when the number of iterations is known?
Which of the following functions is used to find the length of a string?
Which of the following is an input device?
What does a CPU do?
What is the output of bool('False')?
What is cyberbullying? How can it be prevented?
[3 marks]Define string slicing with an example.
[3 marks]Define string slicing with an example.
[3 marks]Explain the concept of key-value pairs in a dictionary.
[3 marks]What are keywords in Python? Give 2 examples.
[3 marks]What is the role of an Operating System?
[3 marks]Differentiate between compiler and interpreter.
[3 marks]What is the role of an Operating System?
[3 marks]Explain the difference between '/' and '//' operators in Python.
[3 marks]What is the difference between a list and a tuple?
[3 marks]Write a script that takes a list of numbers and returns a new list with only even numbers.
[5 marks]Write a program to count vowels in a given string.
[5 marks]Write a program to count vowels in a given string.
[5 marks]Create a dictionary of 3 students with their marks and write code to find the highest marks.
[5 marks]Write a program to count vowels in a given string.
[5 marks]Write a program to count vowels in a given string.
[5 marks]Predict the output: print(2 ** 3 ** 2)
[3 marks]Explanation:Exponentiation is evaluated right-to-left. 3**2 is 9, and 2**9 is 512.
Predict the output: s = 'Python' print(s[::-1])
[3 marks]Explanation:The slice [::-1] reverses the string.
Find the error: for i in range(5) print(i)
[3 marks]Explanation:Missing colon ':' at the end of the for loop statement.
Find the error: d = {1: 'a', 2: 'b'} print(d[3])
[3 marks]Explanation:The key 3 does not exist in the dictionary.
Find the error: x = 10 if x = 10: print('Yes')
[2 marks]Explanation:Assignment operator '=' is used instead of comparison operator '=='.
Predict the output: print(2 ** 3 ** 2)
[2 marks]Explanation:Exponentiation is evaluated right-to-left. 3**2 is 9, and 2**9 is 512.
Find the error: d = {1: 'a', 2: 'b'} print(d[3])
[2 marks]Explanation:The key 3 does not exist in the dictionary.
Find the error: d = {1: 'a', 2: 'b'} print(d[3])
[2 marks]Explanation:The key 3 does not exist in the dictionary.