LARAVEL Case Studies & Practical Application 3

Question 1

A financial app must log every change to an Account model (old values, new values, user who changed it). What is the most maintainable Laravel approach?

Accepted Answer

Create an AuditLog model and record changes inside an Eloquent observer's updating and deleting hooks

Answer

Eloquent observers centralize audit logic outside controllers and fire automatically on model lifecycle events.

Question 2

You are building a reporting dashboard that runs 5 complex SQL aggregations, each taking 2–4 seconds. Users refresh frequently. What caching strategy works best with Laravel?

Accepted Answer

Cache each query result with Cache::remember() using a meaningful key and a TTL like 300 seconds

Answer

Cache::remember() returns cached data on subsequent calls and only re-runs the query when the TTL expires.

Question 3

A legacy Laravel 8 app uses string-based middleware like 'auth'. You are upgrading to Laravel 11, which requires class-based middleware. What file defines the global middleware stack in Laravel 11?

Accepted Answer

bootstrap/app.php using withMiddleware()

Answer

Laravel 11 removed Kernel.php and consolidates HTTP configuration, including middleware, into bootstrap/app.php.

Question 4

A public blog needs to prevent the same IP from submitting more than 5 comments per minute. Which built-in Laravel feature handles this with minimal code?

Accepted Answer

Rate limiting via RateLimiter::for() in a service provider and applying the throttle middleware to the comment route

Answer

Laravel's throttle middleware backed by RateLimiter::for() provides named, configurable rate limits per route or route group.

Question 5

You need to store user profile photos securely so that each file URL expires after 15 minutes. Which Laravel Storage method generates a temporary signed URL?

Accepted Answer

Storage::temporaryUrl($path, now()->addMinutes(15))

Answer

temporaryUrl() is the Storage facade method that generates a pre-signed, time-limited URL supported by drivers like S3.

LARAVEL - Laravel PHP Framework Practice Test

LARAVEL - Laravel PHP Framework Practice Test

LARAVEL Case Studies & Practical Application 3