Queue
CBSE · Class 12 · Computer Science
Flashcards for Queue — CBSE Class 12 Computer Science. Quick Q&A cards covering key concepts, definitions, and formulas.
What is a Queue data structure and what principle does it follow?
Answer
A Queue is an ordered linear data structure that follows the First-In-First-Out (FIFO) principle. Elements are added at one end called REAR (or TAIL) and removed from the other end called FRONT (or HE
Give three real-life examples of Queue applications.
Answer
1. Students standing in queue for morning assembly 2. Customers forming a queue at bank cash counter 3. Vehicles queued at fuel pumps 4. Train ticket waiting list (W/L1, W/L2, etc.) 5. Customer servic
What is the ENQUEUE operation in a queue?
Answer
ENQUEUE is the operation used to insert a new element into the queue at the rear end. Elements can be inserted until the queue reaches its capacity. Attempting to insert beyond capacity results in an
What is the DEQUEUE operation in a queue?
Answer
DEQUEUE is the operation used to remove one element at a time from the front of the queue. Elements can be deleted until the queue becomes empty. Attempting to delete from an empty queue results in an
List all five basic operations supported by a Queue data structure.
Answer
1. ENQUEUE - Insert element at rear 2. DEQUEUE - Remove element from front 3. IS EMPTY - Check if queue has any elements 4. PEEK - View front element without removing it 5. IS FULL - Check if queue ca
Write the Python function to create an empty queue using list.
Answer
```python myQueue = list() ``` This creates an empty list that will serve as our queue data structure.
Write the Python function for ENQUEUE operation.
Answer
```python def enqueue(myQueue, element): myQueue.append(element) ``` The append() function adds an element at the end of the list, which serves as the rear of the queue.
Write the Python function for DEQUEUE operation.
Answer
```python def dequeue(myQueue): if not (isEmpty(myQueue)): return myQueue.pop(0) else: print('Queue is empty') ``` The pop(0) function removes the element from index 0, which i
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Queue covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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