LARAVEL Professional Standards & Competencies 2 — Questions and Answers
Question 1: Which Laravel artisan command generates a new service provider?
- php artisan make:service
- php artisan make:provider (Correct answer)
- php artisan create:provider
- php artisan generate:provider
Correct answer: php artisan make:provider
The `php artisan make:provider` command scaffolds a new service provider class in the `app/Providers` directory.
Question 2: In professional Laravel development, what is the primary purpose of the Repository pattern?
- To cache database queries automatically
- To abstract the data layer and decouple business logic from persistence (Correct answer)
- To replace Eloquent models with raw SQL
- To manage multiple database connections
Correct answer: To abstract the data layer and decouple business logic from persistence
The Repository pattern abstracts the data access layer so business logic is decoupled from how data is stored or retrieved.
Question 3: What is the recommended way to handle environment-specific configuration in Laravel?
- Hardcode values in config files
- Use .env files with config() helper for access (Correct answer)
- Store settings in the database only
- Use PHP constants defined in bootstrap/app.php
Correct answer: Use .env files with config() helper for access
Laravel uses `.env` files for environment-specific values accessed via `env()` or `config()`, keeping secrets out of version control.
Question 4: Which PSR standard does Laravel's autoloading follow?
- PSR-1
- PSR-2
- PSR-4 (Correct answer)
- PSR-7
Correct answer: PSR-4
Laravel uses Composer's PSR-4 autoloading standard, mapping namespace prefixes to directory structures.
Question 5: When should you use Laravel's `shouldQueue` interface on a notification?
- When the notification must be sent synchronously
- When the notification delivery should be deferred to a background job (Correct answer)
- When the notification targets multiple channels simultaneously
- When the notification requires database storage
Correct answer: When the notification delivery should be deferred to a background job
Implementing `ShouldQueue` on a notification causes it to be dispatched to the queue, preventing slow deliveries from blocking the HTTP response.
Question 6: Which Laravel feature is the professional standard for preventing N+1 query problems?
- Query caching
- Eager loading with `with()` (Correct answer)
- Raw SQL joins
- Disabling lazy loading globally
Correct answer: Eager loading with `with()`
Eager loading via `with()` loads related models in a single query, eliminating the N+1 problem that occurs with lazy loading in loops.
Question 7: In Laravel, what is the professional practice for storing sensitive credentials used by third-party services?
- In config/services.php with hardcoded values
- In the .env file, referenced via config files (Correct answer)
- In a secrets.json file committed to the repository
- In the database encrypted with bcrypt
Correct answer: In the .env file, referenced via config files
Sensitive credentials belong in `.env` and are referenced through `config/services.php`, keeping secrets out of version control.
LARAVEL Professional Standards & Competencies 2
Which Laravel artisan command generates a new service provider?