Queues - Data Structures Quiz

What is an abstract data type (ADT)?

• A specific implementation of data
• A physical representation of data
• A type of algorithm
• A logical description of data and operations

Which operation is NOT typically associated with a queue?

• Add an item to the rear
• Remove an item from the front
• Access an item in the middle
• Check if the queue is empty

In a circular queue, what happens when an item is dequeued?

• The front pointer moves to the next item
• The rear pointer moves to the next item
• The queue resets to empty
• The item is removed permanently

What is the primary advantage of using a circular queue over a linear queue?

• It allows for dynamic resizing
• It simplifies the implementation of priority queues
• It allows for faster access to elements
• It prevents memory wastage by reusing freed spaces

How can you determine if a queue is full?

• By comparing the size of the queue to its maximum size
• By checking if the front pointer is at the end
• By checking if the rear pointer is at the start
• By counting the number of items in the queue

What is the purpose of the MOD function in a circular queue?

• To reset the queue
• To determine the size of the queue
• To check if the queue is empty
• To calculate the next index for the rear pointer

In a priority queue, how are items typically ordered?

• By their arrival time
• By their size
• By their type
• By their priority level

What happens when a high-priority item is added to a priority queue?

• It is added to the end of the queue
• It is ignored
• It jumps ahead of lower-priority items
• It is removed from the queue

Which of the following is a characteristic of static data structures?

• They can grow and shrink dynamically
• They are fixed in size
• They are always faster than dynamic structures
• They require more memory

What is the main disadvantage of using a fixed-size array for a queue?

• It is inefficient in terms of memory
• It cannot store data types other than integers
• It cannot dynamically resize
• It is slower than linked lists