### Answer
A queue is a data structure that operates on the principle of **FIFO (First In First Out)**. In a queue, the first element added to the queue will be the first one to be removed, just like a line of people waiting for service; the person who arrives first is served first. This characteristic distinguishes a queue from other data structures, such as a stack that follows the **LIFO (Last In First Out)** methodology.

**Options Breakdown:**
1. **AFIFO (First In First Out) list** - **Correct Answer**. This defines a queue's behavior accurately.
2. **BLIFO (Last In First Out) list** - Incorrect. This describes a stack.
3. **COrdered array** - Incorrect. An array can store elements in order but does not inherently imply FIFO.
4. **DLinear tree** - Incorrect. A linear tree is not related to the queue concept.

### Final Answer
**A. FIFO (First In First Out) list** is the correct description of a queue.

Question

### Answer
A queue is a data structure that operates on the principle of **FIFO (First In First Out)**. In a queue, the first element added to the queue will be the first one to be removed, just like a line of people waiting for service; the person who arrives first is served first. This characteristic distinguishes a queue from other data structures, such as a stack that follows the **LIFO (Last In First Out)** methodology.

**Options Breakdown:**
1. **AFIFO (First In First Out) list** - **Correct Answer**. This defines a queue's behavior accurately.
2. **BLIFO (Last In First Out) list** - Incorrect. This describes a stack.
3. **COrdered array** - Incorrect. An array can store elements in order but does not inherently imply FIFO.
4. **DLinear tree** - Incorrect. A linear tree is not related to the queue concept.

### Final Answer
**A. FIFO (First In First Out) list** is the correct description of a queue.

Knowee AI · Accepted Answer

### Answer
A queue is a data structure that operates on the principle of **FIFO (First In First Out)**. In a queue, the first element added to the queue will be the first one to be removed, just like a line of people waiting for service; the person who arrives first is served first. This characteristic distinguishes a queue from other data structures, such as a stack that follows the **LIFO (Last In First Out)** methodology.

**Options Breakdown:**
1. **AFIFO (First In First Out) list** - **Correct Answer**. This defines a queue's behavior accurately.
2. **BLIFO (Last In First Out) list** - Incorrect. This describes a stack.
3. **COrdered array** - Incorrect. An array can store elements in order but does not inherently imply FIFO.
4. **DLinear tree** - Incorrect. A linear tree is not related to the queue concept.

### Final Answer
**A. FIFO (First In First Out) list** is the correct description of a queue.

A queue is a:AFIFO (First In First Out) listBLIFO (Last In First Out) listCOrdered arrayDLinear treePrevious

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A queue is a:

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