LARAVEL Professional Standards & Competencies 5 — Questions and Answers
Question 1: What is the professional Laravel standard for handling jobs that fail after all retry attempts are exhausted?
- Silently discard the failed job
- Log to the `failed_jobs` table and implement the `failed()` method on the job class (Correct answer)
- Automatically retry indefinitely
- Send the failure directly to the user's browser
Correct answer: Log to the `failed_jobs` table and implement the `failed()` method on the job class
Laravel stores failed jobs in the `failed_jobs` table and calls the job's `failed()` method, allowing developers to handle cleanup or notifications.
Question 2: Which Laravel practice is essential for preventing mass assignment vulnerabilities in Eloquent models?
- Setting `$guarded = []` on all models
- Defining `$fillable` to whitelist assignable attributes or using `$guarded` to blacklist (Correct answer)
- Disabling Eloquent and using raw queries
- Encrypting all model attributes
Correct answer: Defining `$fillable` to whitelist assignable attributes or using `$guarded` to blacklist
Defining `$fillable` (whitelist) or `$guarded` (blacklist) on Eloquent models prevents mass assignment of unintended attributes from user input.
Question 3: In a professional Laravel project using CI/CD, which command validates that migrations are in sync before deploying?
- php artisan migrate:check
- php artisan migrate:status (Correct answer)
- php artisan db:show
- php artisan schema:dump
Correct answer: php artisan migrate:status
`php artisan migrate:status` lists all migrations and whether they have been run, helping identify pending migrations before a production deploy.
Question 4: What is the professional approach to caching frequently-read, rarely-changed data in Laravel?
- Store it in a PHP static variable
- Use `Cache::remember()` with an appropriate TTL and cache driver (Correct answer)
- Always re-query the database for freshness
- Write the data to a flat file manually
Correct answer: Use `Cache::remember()` with an appropriate TTL and cache driver
`Cache::remember()` retrieves cached data if available, or executes the closure and stores the result for the given TTL, minimizing redundant database calls.
Question 5: Which professional practice applies when scheduling recurring tasks in a Laravel application?
- Create individual cron entries for every command
- Define all scheduled tasks in `app/Console/Kernel.php` using the `schedule()` method and use a single cron entry (Correct answer)
- Use `setTimeout` in JavaScript to trigger server tasks
- Hard-code sleep intervals inside artisan commands
Correct answer: Define all scheduled tasks in `app/Console/Kernel.php` using the `schedule()` method and use a single cron entry
Laravel's task scheduler centralizes all recurring commands in `Kernel.php` with fluent frequency methods, requiring only one `* * * * * php artisan schedule:run` cron entry.
Question 6: What is the correct professional approach for seeding a production database in Laravel?
- Run `php artisan db:seed` with the default DatabaseSeeder that includes test data
- Create separate production seeders and run them with `--class` flag after careful review (Correct answer)
- Manually insert records via the database GUI
- Use migrations to insert production data alongside schema changes
Correct answer: Create separate production seeders and run them with `--class` flag after careful review
Production seeders should contain only required reference data, run explicitly with `php artisan db:seed --class=ProductionSeeder` after review to avoid inserting test data.
Question 7: Which Laravel feature enforces consistent coding standards across a development team?
- Laravel Telescope
- Laravel Pint (PHP CS Fixer wrapper) (Correct answer)
- Laravel Horizon
- Laravel Octane
Correct answer: Laravel Pint (PHP CS Fixer wrapper)
Laravel Pint is an opinionated PHP code style fixer built on PHP-CS-Fixer that enforces consistent code formatting aligned with Laravel conventions.
LARAVEL Professional Standards & Competencies 5
What is the professional Laravel standard for handling jobs that fail after all retry attempts are exhausted?