Data Structures Final Multiple Choice With A+Credited Answers 2026

DATA STRUCTURES FINAL MULTIPLE CHOICE WITH A+CREDITED ANSWERS 2026 A linked list is a collection of . a. classes c. addresses b. nodes d. memory variables - Correct Answer b nodes A(n) is a list of items, called nodes, in which the next node is determined by the address, called the link, stored in each node. a. array c. linked list b. structure d. hash table - Correct Answer c. linked list The address of the first node in the list is stored in a separate location, called the . a. head c. key b. tail d. top - Correct Answer a. head Searching through a linked list or inserting an item in a linked list may require a___ of the list. a. review c. copying b. deletion d. traversal - Correct Answer d. traversal In a linked list, we always want head to point to the node. a. key c. first b. main d. last - Correct Answer c. first Building a linked list forward places the item to be added at the of the linked list. a. beginning c. middle b. end d. key point - Correct Answer b. end Building a linked list backward places the item to be added at the of the linked list. a. beginning c. middle b. end d. key point - Correct Answer a. beginning Because initially the list is empty, the pointer first must be initialized to . a. NULL c. NIL b. EMPTY d. NOP - Correct Answer a. NULL lists have elements that are in no particular order. a. Search c. Unsorted b. Structured d. Randomized - Correct Answer c. Unsorted In an ordered linked list, the search algorithm is somewhat improved because the list is___ . a. larger c. referenced b. smaller d. sorted - Correct Answer d. sorted Can apply binary search A doubly linked list is a linked list in which every node has a next pointer and a ____ pointer. a. back c. null b. center d. binary - Correct Answer a. back In a doubly linked list, every node contains the address of the next node except for the node. a. middle c. first b. last d. second to last - Correct Answer b. last A doubly linked list can be traversed in direction. a. only the forward c. a circular b. only the backward d. either the forward or backward - Correct Answer d. either the forward or backward A linked list is not a random access data structure such as a(n) . a. stack c. structure b. deque d. array - Correct Answer d. array The header node is placed at the of a list. a. middle c. beginning b. end d. key location - Correct Answer c. beginning A linked list in which the last node points to the first node is called a linked list. a. circular c. standard b. recursive d. doubly - Correct Answer a. circular The last is pointing to first. So if you visualize it, it looks like a circle The process of solving a problem by reducing it to smaller versions of itself is called . a. iteration c. recursion b. succession d. repulsion - Correct Answer c. rec