**Queue Storage Policy and Node Removal**1. **The storage policy used by a Queue is:** a. FIFO (or LILO) b. FILO (or LIFO) *Describe the reason for your choice.* Your Answer is _____ (a or b)2. **Where does a queue pop a node out?** i. front ii. rear *Describe the reason for your choice.* Your Answer is _____ (i or ii)---**Explanation:**In computer science, a queue is a data structure that operates on a First In, First Out (FIFO) principle. This means that the first element added to the queue will be the first one to be removed, similar to people queuing up in a line. Therefore, the correct storage policy for a queue is FIFO (option a).A queue pops a node out from the front, as this is where the oldest element is located. Hence, the correct choice for where a queue pops a node out is the front (option i).

The correct answer along with the explanation is given below.

1. The storage policy used by a Queue is a. FIFO (or LILO) b. FILO (or LIFO) Describe the reason of your choice. Your Answer is (a or b) 2. Where does a queue pop a node out? i. front ii. rear Describe the reason of your choice. Your Answer is (i or ii)

1. The storage policy used by a Queue is a. FIFO (or LILO) b. FILO (or LIFO) Describe the reason of your choice. Your Answer is (a or b) 2. Where does a queue pop a node out? i. front ii. rear Describe the reason of your choice. Your Answer is (i or ii)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

**Queue Storage Policy and Node Removal**

1. **The storage policy used by a Queue is:**

a. FIFO (or LILO)

b. FILO (or LIFO)

*Describe the reason for your choice.*

Your Answer is _____ (a or b)

2. **Where does a queue pop a node out?**

i. front

ii. rear

*Describe the reason for your choice.*

Your Answer is _____ (i or ii)

---

**Explanation:**

In computer science, a queue is a data structure that operates on a First In, First Out (FIFO) principle. This means that the first element added to the queue will be the first one to be removed, similar to people queuing up in a line. Therefore, the correct storage policy for a queue is FIFO (option a).

A queue pops a node out from the front, as this is where the oldest element is located. Hence, the correct choice for where a queue pops a node out is the front (option i).

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