21. Which header file in C++ provides functionality for string manipulation? A. <string> B. <cstring> C. <sstream> D. <locale> Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
22. In Java, which class provides the implementation of a doubly linked list? A. HashSet B. Vector C. ArrayList D. LinkedList Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
23. Which Python module is commonly used for creating and manipulating tuples? A. tuple B. array C. collections D. collections Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
24. What is the main use of the priority_queue in C++ Standard Library? A. To perform quick sorting operations. B. To manage a collection of elements in a priority order. C. To handle data streams efficiently. D. To perform quick sorting operations. Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
25. Which Java class is used for implementing a queue with priority order? A. HashMap B. ArrayList C. PriorityQueue D. LinkedList Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
26. In Python, which module allows for efficient implementations of various algorithms and data structures? A. math B. functools C. collections D. heapq Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
27. Which C++ header provides functionality for managing sets and their operations? A. <list> B. <vector> C. <set> D. <unordered_map> Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
28. Which standard library class in C++ supports both ordered and unordered associative containers? A. map B. vector C. list D. unordered_map Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
29. What does the random module in Python provide? A. Functions for generating random numbers. B. Data structure manipulation. C. Efficient sorting algorithms. D. Advanced mathematical functions. Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
30. Which Java standard library provides utility functions for manipulating strings? A. StringUtils B. StringBuffer C. String D. StringBuilder Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
