To determine the necessary condition to be checked before deletion from a queue, let's analyze the options given:

1. **Overflow**: This condition relates to adding elements to a queue, indicating that the queue is full and no new elements can be added. It doesn't apply to deletion because it has nothing to do with removing elements.

2. **Underflow**: This is the critical condition to check before deleting an element from a queue. It occurs when a deletion is attempted from an empty queue, which means there are no elements available to remove.

3. **Rear value**: The rear value is the last element of the queue and is not relevant when considering a deletion operation. Knowing the rear value does not impact the ability to delete from the queue.

4. **Front value**: While the front value indicates which element will be removed from the queue when a deletion is performed, it does not need to be checked in terms of "condition" before the deletion can occur.

### Final Answer
The necessary condition to be checked before deletion from the Queue is **b. Underflow**.

Question

To determine the necessary condition to be checked before deletion from a queue, let's analyze the options given:

1. **Overflow**: This condition relates to adding elements to a queue, indicating that the queue is full and no new elements can be added. It doesn't apply to deletion because it has nothing to do with removing elements.

2. **Underflow**: This is the critical condition to check before deleting an element from a queue. It occurs when a deletion is attempted from an empty queue, which means there are no elements available to remove.

3. **Rear value**: The rear value is the last element of the queue and is not relevant when considering a deletion operation. Knowing the rear value does not impact the ability to delete from the queue.

4. **Front value**: While the front value indicates which element will be removed from the queue when a deletion is performed, it does not need to be checked in terms of "condition" before the deletion can occur.

### Final Answer
The necessary condition to be checked before deletion from the Queue is **b. Underflow**.

Knowee AI · Accepted Answer

To determine the necessary condition to be checked before deletion from a queue, let's analyze the options given:

1. **Overflow**: This condition relates to adding elements to a queue, indicating that the queue is full and no new elements can be added. It doesn't apply to deletion because it has nothing to do with removing elements.

2. **Underflow**: This is the critical condition to check before deleting an element from a queue. It occurs when a deletion is attempted from an empty queue, which means there are no elements available to remove.

3. **Rear value**: The rear value is the last element of the queue and is not relevant when considering a deletion operation. Knowing the rear value does not impact the ability to delete from the queue.

4. **Front value**: While the front value indicates which element will be removed from the queue when a deletion is performed, it does not need to be checked in terms of "condition" before the deletion can occur.

### Final Answer
The necessary condition to be checked before deletion from the Queue is **b. Underflow**.

The necessary condition to be checked before deletion from the Queue is__a.Overflowb.Underflowc.Rear valued.Front valueClear my choice

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The necessary condition to be checked before deletion from the Queue is__

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