(Solved Homework): Q32. Header and trailer nodes can complicate insertion and deletion algorithms.

Q32. Header and trailer nodes can complicate insertion and deletion algorithms.
a. true
b. false

Q33. Which answer most accurately completes the following sentence: A linked list is made up of ____.
a. classes
b. nodes
c. addresses
d. memory variables

Q34. Linked lists built forward or backward are identical in every way.
a. true
b. false

Q35. while(current!=null)

The above statement traverses a linked list.
a. true
b. false

Q36. In the class LinkedListClass, the search method is declared as ____.
a. public
b. private
c. abstract
d. protected

Q37. In an ordered list, we need to modify only the algorithms (as implemented for a regular linked list) for the ____, insert, and delete operations.
a. copy
b. compare
c. traverse
d. search

Q38. Which of the following should be used to traverse a list?
a. the head of the list
b. the tail of the list
c. a reference variable not in the list
d. any node in the list

Q39. Searching, inserting, and deleting require traversal of the linked list.
a. true
b. false

Q40. Searching through a linked list or inserting an item in a linked list requires a ____ of the list.
a. review
b. deletion
c. copy
d. traversal

Q41. private int func3(int m, int n) {
if (m < n)
return 0;
return 1 + func3(m-n, n);

Refer to the code above. What is the value of func3(-5, 1)?
a. -5
b. 0
c. 1
d. 5

Q42. The overhead associated with iterative methods is greater in terms of both memory space and computer time, when compared to the overhead associated with executing recursive methods.
a. true
b. false

Expert Answer

 Answer 33 Node (B: A linked list is made up of nodes

Answer 34 True : Linked lists built forward or backward are identical in every way. for that we need to maintain the doubly linkedlist

Answer 35 True: while(current!=null)
current=head.link; This means if current is empty, create a new list

Answer 36 Private : becuase when we do not want our variable’s value to be changed out-side our class we should declare them private.

Answer 38 C : a reference variable not in the list

Answer 39 False : Searching, inserting, and deletingdoes not require traversal of the linked list

Answer 40 Traversal (D) : Searching through a linked list or inserting an item in a linked list requires a traversal of the list.

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