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255 questions found · practise this subject as a set Show 20 · 50 per page
#QuestionSubject and topicDifficulty
101 Which module is used in Python to store objects such as lists in a binary file? Computer Science/Informatics Practices
Binary files
Easy
102 Which file mode should be used to write pickled data to a new binary file? Computer Science/Informatics Practices
Binary files
Easy
103 What is the correct form of the statement to write a dictionary d into the binary file object f? Computer Science/Informatics Practices
Binary files
Medium
104 The process of converting a Python object into a byte stream is called Computer Science/Informatics Practices
Binary files
Medium
105 A program writes a list and then a dictionary with two pickle.dump() calls, then reads the file with pickle.l… Computer Science/Informatics Practices
Binary files
Hard
106 Which principle does a stack follow? Computer Science/Informatics Practices
Stack
Easy
107 Removing an element from an empty stack is called Computer Science/Informatics Practices
Stack
Easy
108 Starting with an empty Python list s, the operations s.append(10), s.append(20), s.pop(), s.append(30), s.app… Computer Science/Informatics Practices
Stack
Medium
109 Which feature of a web browser is a typical application of a stack? Computer Science/Informatics Practices
Stack
Medium
110 The characters of "CAT" are pushed one by one onto a stack and then all popped and joined in the order popped… Computer Science/Informatics Practices
Stack
Hard
111 What is the postfix form of the infix expression A + B * C? Computer Science/Informatics Practices
Expression notation
Easy
112 Which data structure is used to evaluate a postfix expression? Computer Science/Informatics Practices
Expression notation
Easy
113 What is the value of the postfix expression 4 5 + 3 2 − *? Computer Science/Informatics Practices
Expression notation
Medium
114 What is the postfix form of (A + B) * (C − D)? Computer Science/Informatics Practices
Expression notation
Medium
115 What is the value of the postfix expression 8 2 3 * − 4 +? Computer Science/Informatics Practices
Expression notation
Hard
116 Which principle does a queue follow? Computer Science/Informatics Practices
Queue
Easy
117 In a queue implemented with a Python list q using append() for insertion, which statement removes the front e… Computer Science/Informatics Practices
Queue
Easy
118 Starting with an empty queue, A, B and C are enqueued, one element is dequeued and then D is enqueued. Which … Computer Science/Informatics Practices
Queue
Medium
119 Which real-life system is best modelled by a queue? Computer Science/Informatics Practices
Queue
Medium
120 A student implements a queue with a Python list using append() to insert but pop() with no argument to delete… Computer Science/Informatics Practices
Queue
Hard