# Queues & Jobs (Laravel)

> Queue configuration, job creation, dispatching jobs, job middleware, failed jobs, job batching, queue workers

- 22 interview questions
- Mid-Level
- [Interview Questions: Laravel](https://sharpskill.dev/en/technologies/laravel/interview-questions.md)

## 1. Which Laravel queue driver uses the database to store jobs?

**Answer**

The database driver stores jobs in a Laravel table (typically 'jobs'). This avoids installing Redis or other external systems, simplifying initial deployment. For large volumes or critical performance, prefer Redis or SQS which offer better performance and scalability.

## 2. Which Artisan command creates a new job class?

**Answer**

The 'php artisan make:job' command generates a new job class in the app/Jobs directory. This class contains a handle method that will be executed by the queue worker. The generated structure also includes useful traits like Dispatchable, InteractsWithQueue, and Queueable to facilitate job management.

## 3. In which method of a Job class is the business logic to execute located?

**Answer**

The handle method contains the job's business logic. Laravel automatically invokes it when the job is processed by the worker. This method supports dependency injection via the service container, allowing services to be injected directly into the method signature for better testability and code maintainability.

## 19 more questions available

- Why use queues for sending emails in a Laravel application?
- Which method dispatches a job synchronously without going through the queue?

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