What is the purpose of the head pointer in a linked list?

To store the data of the first node

What is the purpose of a tail pointer in a singly linked list?

To store the data of the last node

In a singly linked list, what is the purpose of the next pointer in each node?

Holds the data of the current node

Which of the following statements about head and tail pointers in a linked list is true?

Head points to the first node, and tail points to the last node

Head points to the last node, and tail points to the first node

Head points to the next node, and tail points to the previous node

Head points to the previous node, and tail points to the next node

What is the significance of a null pointer in a linked list?

Marks the beginning of the list

In a circular linked list, how can you detect the end of the list while traversing?

Traverse until the first node is reached again

In a singly linked list, how can you efficiently insert a new node between two existing nodes?

Adjust the next pointer of the preceding node

Adjust the previous pointer of the succeeding node

Adjust both the next and previous pointers of the surrounding nodes

Create a new node and update the pointers accordingly

When deleting a node in a circular linked list, how do you update the pointers of the surrounding nodes?

Adjust both the next and previous pointers of the surrounding nodes

Adjust only the next pointer of the preceding node

Adjust only the previous pointer of the succeeding node

No need to update pointers in a circular linked list

Which of the following represents the correct algorithm for adding a new node at the beginning of a singly linked list?

Create a new node, set its next pointer to the head, and update the head to point to the new node.

Traverse to the end of the list, set the next pointer of the last node to the new node.

Create a new node, set its next pointer to null, and update the tail to point to the new node.

Set the next pointer of the current node to the new node, and update the current node to the new node.

What is the correct algorithm for deleting a node with a specific value from a singly linked list?

Traverse the list, find the node with the specified value, update the next pointer of the preceding node to skip the node.

Traverse the list, find the node with the specified value, update the next pointer of the preceding node.

Traverse the list, find the node with the specified value, set its next pointer to null.

Set the next pointer of the current node to the next node, effectively skipping the node with the specified value.

What is the standard algorithm for searching a value in a singly linked list?

Start from the head, compare the value with each node's data until a match is found or the end of the list is reached.

Start from the tail, compare the value with each node's data until a match is found or the beginning of the list is reached.

Use binary search by dividing the list into two halves and comparing with the middle node.

Traverse the list in reverse, comparing the value with each node's data until a match is found or the end of the list is reached.

What is the correct algorithm for adding a new node after a specific node in a circular linked list?

Set the next pointer of the new node to the next node of the specified node, and set the specified node's next pointer to the new node.

Create a new node, set its next pointer to the next node of the specified node, and update the specified node's next pointer.

Traverse the list until the specified node is found, set its next pointer to the new node, and set the new node's next pointer accordingly.

Create a new node, set its next pointer to null, and update the tail to point to the new node.

What is the correct algorithm for deleting the last node from a circular linked list?

Set the next pointer of the last node to the first node, effectively removing it from the circular structure.

Traverse the list until the last node is found, update the last node's next pointer to null.

Set the next pointer of the second-to-last node to null and update the tail to point to the second-to-last node.

Traverse the list until the last node is found, update the tail to point to the second-to-last node.

In a singly linked list of integers, what is the algorithm to find the maximum value (max) among the elements?

Initialize max to the first element. Traverse the list, updating max if a larger element is found.

Set max to the last element. Traverse the list, comparing each element with max and updating if a larger element is found.

Sort the list in descending order and select the first element as max.

Traverse the list, calculating the difference between adjacent elements and updating max if a positive difference is found.

For a circular linked list of floating-point numbers, what is the correct algorithm to find the minimum value (min)?

Set min to the first element. Traverse the list, updating min if a smaller element is found.

Initialize min to the last element. Traverse the list, comparing each element with min and updating if a smaller element is found.

Sort the list in ascending order and select the first element as min.

Traverse the list, calculating the sum of elements and dividing by the total number of elements to find min.

In a singly linked list, how can you efficiently calculate the average value of the elements?

Traverse the list, summing all elements and dividing by the number of elements.

Use a temporary node to keep track of the sum while traversing, and then divide by the number of elements.

Sort the list in ascending order and select the middle element as the average.

Traverse the list, counting the number of elements, and then summing all values.

In the memory representation of a linear linked list, if the variable START holds the value 1000, what does this indicate?

The memory address where the linked list starts.

The index of the first node's information in the INFO array.

The index of the first node's link in the LINK array.

The memory address of the last node's information.

What are the typical steps involved in the algorithm for inserting a new node at the beginning of a Circular Linked List?

Create a new node with the given data Point the next of the new node to the head of the list Update the head pointer to the new node Point the next of the last node to the new node

Create a new node with the given data Point the next of the new node to the head of the list Update the head pointer to the new node Point the next of the new node to the last node

Create a new node with the given data Point the next of the new node to the last node Update the head pointer to the new node Point the next of the last node to the new node

Create a new node with the given data Point the next of the new node to the head of the list Update the head pointer to the new node Point the next of the head to the new node

What is the primary advantage of a Circular Linked List over a Simple Linked List?

It allows us to traverse the whole list starting from any node

It allows for O(1) insertions at the end of the list

It does not require a sentinel node

What is the main advantage of a linked list over an array?

Elements can be inserted in a linked list in O(1) time

Random access is more efficient in linked lists

Linked lists are easier to implement

What are the typical steps involved in the algorithm for inserting a new node at the beginning of a Circular Linked List?

Set newNode = new Node(value, null) newNode.Next = Head head = newNode If (size == 0) Then tail = head [ End If ] Tail.Next = head Set size = size + 1 End

Set newNode = new Node(value, null) newNode.Next = Tail head = newNode If (size == 0) Then tail = head [ End If ] Tail.Next = head Set size = size + 1 End

Set newNode = new Node(value, null) newNode.Next = Head head = newNode If (size == 0) Then tail = newNode [ End If ] Tail.Next = head Set size = size + 1 End

Set newNode = new Node(value, null) newNode.Next = Tail head = newNode If (size == 0) Then tail = newNode [ End If ] Tail.Next = head Set size = size + 1 End

What is the missing line in the algorithm below that is responsible for removing the duplicate node? current = head previous = head while current is not null: /*Missing Line*/ else: previous = current current = current.next

if previous.value == current.value: previous.next = current.next

if value == current.value: previous.next = current.next

if previous == current: current.next = previous.next = current.next

if current.value == current.value: previous.next = current.next

In which scenario is the Linked List an excellent data structure?

When you need to insert elements in the middle of the list

When you need to insert elements at the end of the list

When you need to access elements in sequential order

When you need quick access to elements by index

What risk is associated with Circular Linked Lists if proper validation is not implemented?

Code may go into an infinite loop if validation is not handled properly

Circular Linked Lists are immune to infinite loops

Lack of validation can lead to efficient code execution

Circular Linked Lists do not require validation for safe operation

In a linear linked list memory representation, if a node's INFO array index is 7 and its LINK array index is 8, what does this suggest?

The node's information is stored at index 7 in the INFO array, and its next node's information is stored at index 8 in the LINK array.

The node's information is stored at index 8 in the INFO array, and its next node's information is stored at index 7 in the LINK array.

The node's information is stored at index 7 in both the INFO and LINK arrays.

The node's information is stored at index 8 in both the INFO and LINK arrays.

Which of the following points is/are not true about Linked List data structure when it is compared with an array?

Access of elements in linked list takes less time than compared to arrays

Arrays have better cache locality that can make them better in terms of performance

It is easy to insert and delete elements in Linked List

Random access is not allowed in a typical implementation of Linked Lists

When is a Linked List an appropriate data structure to use?

When you need to access elements in sequential order

When you need to quickly search for elements by value

When you need to insert elements at the beginning of the list

When you need to delete elements from the middle of the list

What is the purpose of this algorithm? { slow = head, fast = head; while (fast != null && fast.next != null) { slow = slow.next ; fast = fast.next.next ; return slow; }

To find the middle node of the linked list.

To determine if the linked list contains a loop.

To find the last node of the linked list.

To find the first node of the linked list.

Data Structure CUP

Authored by Enas Elsayed

Computers

University

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

From the following which is not the operation of data structure?

Operations that manipulate data in some way

Operations that perform a computation

Operations that check syntax errors

Operations that monitor an object for the occurrence of a controlling event

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a circular linked list, insertion of node requires modification of ………………… pointer.

Zero

One

Two

Three

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the missing statement in the max algorithm of the 2d array?
Algorithm: Maximum
Input: Array
Output: maxValue
Method: Let maxValue = Array[0][0]
Repeat for K = LBr to UBr Repeat for J = LBc to UBc
\Missing statement\
[End Loop]c [End Loop]r
Display("Maximum value in Array is: ", maxValue) End

If (Array[K][ J ] > maxValue ) Then maxValue = Array[ K ][ J ] [End If]

If (maxValue >Array[K][ J ] ) Then maxValue = Array[ K ][ J ] [End If]

If (Array[J][ K] > maxValue ) Then maxValue = Array[ J ][ K ] [End If]

If (Array[K][ J ] > maxValue ) Then Array[ K ][ J ] = maxValue [End If]

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which among the following segments of code add the node at the beginning of a single LinkedList?

newNode.next = head , Head = newNode

Head = newNode , newNode.next = head

newNode.next = tail , Head = newNode

newNode.next = head , tail = newNode

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is an advantage of a circular linked list?

If not handled proper validation then code may go in an infinite loop.

Not easy to reverse a circular linked list.

any node can be starting point means we can traverse each node from any point.

Harder to find the end of the list and loop control.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How do you count the number of elements in the circular linked list?

a) set temp = head.Next; while(temp != head) temp = temp.Next; length++; return length;

b) Set temp = head.Next; while(temp != null) temp = temp.Next; length++; return length;

c) Set temp = head.Next; while(temp != head && temp != null) temp = head.Next; length++; return length;

d) Set temp = head.Next; while(temp != head && temp == null) temp = head.Next; length++; return length;

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a singly linked list, how does each node store the reference to the next node?

Pointer

Index

Value

Key

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Data Structure CUP

From the following which is not the operation of data structure?

In a circular linked list, insertion of node requires modification of ………………… pointer.

What is the missing statement in the max algorithm of the 2d array?
Algorithm: Maximum
Input: Array
Output: maxValue
Method: Let maxValue = Array[0][0]
Repeat for K = LBr to UBr Repeat for J = LBc to UBc
\Missing statement\
[End Loop]c [End Loop]r
Display("Maximum value in Array is: ", maxValue) End

Which among the following segments of code add the node at the beginning of a single LinkedList?

Which of the following is an advantage of a circular linked list?

How do you count the number of elements in the circular linked list?

In a singly linked list, how does each node store the reference to the next node?

What is the advantage of a linked list over an array?

In a circular linked list, where does the last node point to?

What is the time complexity for traversing a singly linked list with 'n' nodes?

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