QUIZZERIA

Which module is used to work with regular expressions in Python?

• regex

• re

• regx

• reg

Which of the following statements is true about Python sets?

• Sets allow duplicate values

• Sets are mutable and ordered

• Sets are immutable

• Sets do not allow duplicate values   

What will sorted([3, 1, 4, 1, 5], reverse=True) return?

• [1, 1, 3, 4, 5]

• [5, 4, 3, 1, 1] 

• [5, 1, 4, 1, 3]

• [3, 1, 4, 1, 5]

What is the purpose of enumerate() in Python?

• It adds an index to an iterable  

• It creates a list from a range

• It sorts a list

• It removes duplicates from a list

Which of the following collections in Java allows duplicate keys?

• HashMap

• TreeMap

• Hashtable

• None of the above  

Which of the following is NOT a wrapper class in Java?

• Integer

• Float

• Character

• String  

Which of the following is the correct way to implement an interface in Java?

• class A implements B {}

• class A extends B {}

• class A implements B, C {}

• Both (a) and (c)  

What will happen if an exception is thrown inside a finally block in Java?

• The program will terminate  

• The exception will be ignored

• The exception will be caught automatically

• None of the above

What is the size of int on a typical 32-bit system?

• 2 bytes

• 4 bytes   

• 8 bytes

• 1 byte

What does the typedef keyword do in C?

• Defines a new data type  

• Allocates memory dynamically

• Initializes a pointer

• Declares a function