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Linked List Traversal Quiz

Linked List
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A 25-question quiz about traversal patterns in linked lists, covering forward traversal, backward traversal in DLLs, circular traversal control, stopping conditions, pointer movement, and loop detection.

25 Questions
~50 minutes
1

Question 1

What is the primary operation required to traverse a singly linked list?

A
Following next pointers one node at a time
B
Following prev pointers
C
Jumping by index
D
Using array brackets
2

Question 2

When does traversal stop in a singly linked list?

A
When the next pointer becomes null
B
When head equals tail
C
After a fixed number of steps
D
When a value repeats
3

Question 3

Which traversal direction is possible in a doubly linked list?

A
Both forward and backward
B
Forward only
C
Backward only
D
Random jumps
4

Question 4

What is the purpose of a traversal pointer?

A
To walk through the list without modifying the structure
B
To permanently change the links
C
To reorder nodes automatically
D
To reset the head pointer
5

Question 5

What traversal risk exists in circular linked lists?

A
Infinite loops if stopping conditions are incorrect
B
Nodes randomly disconnect
C
Traversal stops early automatically
D
Values change unexpectedly
6

Question 6

Which structure requires checking for the head node to stop traversal?

A
Circular linked lists
B
Singly linked lists
C
DLLs with null termination
D
Array-based lists
7

Question 7

Which value is typically used as a traversal starting point?

A
The head
B
The tail’s next
C
A random node
D
The middle node
8

Question 8

Which traversal strategy ensures no node is skipped?

A
Advancing exactly one link per step
B
Jumping two nodes at a time
C
Advancing based on value size
D
Visiting nodes in a random order
9

Question 9

What is needed to traverse backward in a DLL?

A
Using prev pointers
B
Using next pointers only
C
Using array indexing
D
Following a hash map
10

Question 10

Why is traversal O(n) in time complexity?

A
Each node must be visited exactly once
B
Traversal jumps to the end instantly
C
Nodes are stored contiguously
D
Linked lists use binary search
11

Question 11

What does this pseudocode do?

plaintext
curr = head
      while curr != null:
          process(curr)
          curr = curr.next
A
Traverses a singly linked list forward
B
Traverses backward
C
Skips every other node
D
Creates a new list
12

Question 12

What is missing in this circular traversal?

plaintext
curr = head
      while curr != null:
          process(curr)
          curr = curr.next
A
A condition comparing curr back to head
B
A skip pointer
C
A pointer reset to null
D
Backward logic
13

Question 13

What does this diagram represent?

plaintext
[A] -> [B] -> [C]
       ^              |
       |--------------|
A
Circular list traversal loop
B
A linear list
C
A doubly linked list
D
A stack
14

Question 14

What does this traversal count?

plaintext
count = 0
      curr = head
      while curr != null:
          count += 1
          curr = curr.next
A
Number of nodes in a singly linked list
B
Nodes in a circular list
C
Backward traversal count
D
Number of cycles
15

Question 15

What traversal does this represent?

plaintext
curr = tail
      while curr != null:
          process(curr)
          curr = curr.prev
A
Backward traversal in a doubly linked list
B
Forward traversal
C
Circular traversal
D
Search by value
16

Question 16

Why must traversal pointers be stored separately from head?

A
To avoid losing access to the list
B
To reorder nodes automatically
C
To double the memory usage
D
To convert the list into an array
17

Question 17

What does a traversal require in a list with random access disabled?

A
Sequential stepping
B
Arithmetic indexing
C
Direct jumps
D
Array-based lookup tables
18

Question 18

Which traversal stops after exactly n steps?

A
Partial traversal
B
Full traversal of a DLL
C
Circular list traversal
D
Recursive traversal
19

Question 19

How does recursion traverse a linked list?

A
By calling itself with the next node
B
By jumping to the tail first
C
By using array indexing
D
By stopping after constant time
20

Question 20

Which traversal modification can help detect cycles?

A
Using two pointers with different speeds
B
Using prev pointers only
C
Using binary search
D
Using random jumps
21

Question 21

Which traversal requires stopping at the tail?

A
Backward traversal in a DLL
B
Circular traversal
C
Forward traversal in an SLL
D
Skipping traversal
22

Question 22

What does traversal through a sorted linked list allow?

A
Reading values in sorted order
B
Random-access lookup
C
Instant binary search
D
Sorting during traversal
23

Question 23

What prevents infinite traversal in an incorrectly terminated SLL?

A
Ensuring last.next is null
B
Using prev pointers
C
Using tail loops
D
Jumping multiple nodes
24

Question 24

Which traversal reads elements in reverse order without reversing the list?

A
Backward traversal in a DLL
B
Forward traversal in an SLL
C
Circular traversal
D
Partial traversal
25

Question 25

What is the basic requirement for safe traversal?

A
Valid pointer links at every step
B
Odd number of nodes
C
Continuous memory
D
Value-based navigation only

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QUIZZES IN Linked List

1

Introduction

50

A 50-question quiz introducing linked list fundamentals, node structures, operations, complexity, variants, traversal logic, and conceptual behavior.

2

Node Structure and Pointer Fundamentals

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A 40-question quiz covering how linked list nodes store data and pointers, node relationships, pointer manipulation, node diagrams, memory links, and conceptual pointer mechanics.

3

Singly Linked List

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A 30-question quiz covering singly linked list fundamentals, node linking, traversal, insertion, deletion, and pointer behavior.

4

Doubly Linked List

30

A 30-question quiz exploring doubly linked list structure, node connections, pointer behavior, traversal, insertion, deletion, and edge cases.

5

Circular Linked List

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A 30-question quiz covering circular linked list structure, node linking, traversal challenges, insertion, deletion, and behavior of circular pointer loops.

6

Doubly Circular Linked List

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A 20-question quiz covering the structure and behavior of doubly circular linked lists, including bidirectional looping, pointer updates, insertion, deletion, and traversal logic.

7

Linked List Traversal

25

A 25-question quiz about traversal patterns in linked lists, covering forward traversal, backward traversal in DLLs, circular traversal control, stopping conditions, pointer movement, and loop detection.

8

Linked List Insertion Operations

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A 30-question quiz covering insertion at the head, insertion at the tail, and insertion at a specific position in linked lists.

9

Linked List Deletion Operations

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A 30-question quiz covering deletion at head, deletion at tail, deletion by value, and deletion by position in linked lists.

10

Linked List Searching and Pointer Techniques

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A 30-question quiz covering searching in linked lists, the fast–slow pointer technique, and finding the middle node.

11

Palindrome Linked List

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A 25-question quiz covering detection of palindrome linked lists using pointers, reversal, comparison, and traversal logic.