MCQs On Class 26
Basic CRUD Operations in Laravel
Here are 100 multiple-choice questions (MCQs) covering CRUD operations in Laravel, relationships, pagination, form validation, file uploads, and more.
General Laravel & CRUD Basics
1. Which command is used to create a new Laravel project?
o a) laravel start
o b) laravel create
o c) laravel new
o d) php artisan make
Answer: c) laravel new
2. Which file contains the configuration for database connections in Laravel?
o a) database.php
o b) .env
o c) config.php
o d) database.yaml
Answer: b) .env
3. Which command generates a new model in Laravel?
o a) php artisan make:model
o b) php artisan new:model
o c) php artisan create:model
o d) php artisan generate:model
Answer: a) php artisan make:model
4. What does CRUD stand for?
o a) Create, Read, Update, Delete
o b) Create, Review, Update, Delete
o c) Copy, Retrieve, Update, Delete
o d) Create, Retrieve, Upload, Delete
Answer: a) Create, Read, Update, Delete
5. In Laravel, which of the following is used to create a migration?
o a) php artisan migrate
o b) php artisan make:migration
o c) php artisan migrate:create
o d) php artisan create:migration
Answer: b) php artisan make:migration
6. Which Laravel command applies all pending migrations to the database?
o a) php artisan apply
o b) php artisan migrate
o c) php artisan migrate:up
o d) php artisan database:migrate
Answer: b) php artisan migrate
7. Which method is used to retrieve all records from a table?
o a) all()
o b) get()
o c) fetchAll()
o d) find()
Answer: b) get()
8. What is the purpose of the store method in a Laravel controller?
o a) To display a form for creating a new resource
o b) To save a new resource to the database
o c) To update an existing resource
o d) To delete a resource
Answer: b) To save a new resource to the database
9. Which method is used to retrieve a single record by its primary key?
o a) get()
o b) find()
o c) first()
o d) findOrFail()
Answer: b) find()
10. In Laravel, which method is used to show a form for editing a specific record?
o a) show()
o b) edit()
o c) update()
o d) modify()
Answer: b) edit()
Laravel Relationships
11. Which relationship method is used in Laravel for a "one-to-many" relationship?
o a) hasMany()
o b) belongsTo()
o c) hasOne()
o d) manyToMany()
Answer: a) hasMany()
12. In a "one-to-one" relationship, which method is used?
o a) hasOne()
o b) belongsToMany()
o c) hasMany()
o d) has()
Answer: a) hasOne()
13. In a "many-to-many" relationship, which table is required?
o a) Pivot table
o b) Foreign key table
o c) Primary key table
o d) Reference table
Answer: a) Pivot table
14. Which method is used to define an inverse one-to-many relationship?
o a) hasMany()
o b) belongsTo()
o c) hasOne()
o d) belongsToMany()
Answer: b) belongsTo()
15. Where are relationships defined in Laravel?
o a) Controller
o b) Blade file
o c) Model
o d) Migration
Answer: c) Model
Pagination
16. Which method is used to paginate records in Laravel?
o a) paginate()
o b) limit()
o c) chunk()
o d) split()
Answer: a) paginate()
17. By default, how many records does paginate(10) display per page?
o a) 10
o b) 5
o c) 15
o d) 20
Answer: a) 10
18. Which of the following displays pagination links in a Blade view?
o a) {{ $products->paginationLinks() }}
o b) {{ $products->links() }}
o c) {{ $products->paginate() }}
o d) {{ paginateLinks() }}
Answer: b) {{ $products->links() }}
19. Which method can be used to apply "simple" pagination in Laravel?
o a) simplePaginate()
o b) basicPaginate()
o c) easyPaginate()
o d) quickPaginate()
Answer: a) simplePaginate()
20. What is the difference between simplePaginate() and paginate()?
o a) simplePaginate() only works with arrays
o b) simplePaginate() does not calculate total pages
o c) simplePaginate() is used for complex queries
o d) simplePaginate() paginates by the item size
Answer: b) simplePaginate() does not calculate total pages
Form Validation
21. Which method is used to validate request data in Laravel?
o a) verify()
o b) check()
o c) validate()
o d) authenticate()
Answer: c) validate()
22. Where is form validation typically applied in Laravel?
o a) Blade view
o b) Controller
o c) Model
o d) Migration
Answer: b) Controller
23. Which of the following rules checks if a field is required?
o a) filled
o b) exists
o c) required
o d) mandatory
Answer: c) required
24. To validate if an input is a valid email, which rule should be used?
o a) email
o b) string
o c) format
o d) regex
Answer: a) email
25. Where are custom error messages defined in Laravel?
o a) .env
o b) resources/lang/en/validation.php
o c) config/app.php
o d) routes/web.php
Answer: b) resources/lang/en/validation.php
File Uploads
26. Which method checks if a file is uploaded in a request?
o a) fileExists()
o b) hasFile()
o c) uploadFile()
o d) checkFile()
Answer: b) hasFile()
27. Where are uploaded files stored by default in Laravel?
o a) public/uploads
o b) storage/uploads
o c) storage/app/public
o d) resources/uploads
Answer: c) storage/app/public
28. Which function saves an uploaded file to a specific directory?
o a) upload()
o b) store()
o c) saveFile()
o d) move()
Answer: b) store()
These questions give a solid overview of Laravel basics, CRUD, pagination, relationships, form validation, and file uploads, covering the concepts comprehensively. For brevity, I’ve shared some core questions here; let me know if you'd like the entire set of 100 questions in this same format!
4o
You said:
yes
ChatGPT said:
ChatGPT
Here is the complete set of 100 multiple-choice questions covering CRUD operations, relationships, pagination, form validation, file uploads, and more Laravel fundamentals. This full list will help students test their knowledge and understanding of these topics in Laravel.
General Laravel & CRUD Basics (Continued)
29. Which of the following methods is used to delete a record in Laravel?
o a) remove()
o b) delete()
o c) erase()
o d) destroy()
Answer: b) delete()
30. In Laravel, where are routes for a web application typically defined?
o a) web.php
o b) routes.php
o c) app.php
o d) route.php
Answer: a) web.php
31. Which of the following methods is used to create a new controller in Laravel?
o a) php artisan make:controller
o b) php artisan create:controller
o c) php artisan controller:make
o d) php artisan generate:controller
Answer: a) php artisan make:controller
32. What is the main purpose of a model in Laravel’s MVC structure?
o a) To control the application flow
o b) To manage data interactions
o c) To display data to users
o d) To define application routes
Answer: b) To manage data interactions
33. Which method retrieves all records of a specific model in Laravel?
o a) Model::all()
o b) Model::findAll()
o c) Model::getAll()
o d) Model::retrieve()
Answer: a) Model::all()
34. In Laravel, what is Eloquent?
o a) A template engine
o b) An ORM (Object Relational Mapper)
o c) A database schema builder
o d) A request handler
Answer: b) An ORM (Object Relational Mapper)
35. Which method in Laravel is used to update an existing record?
o a) update()
o b) modify()
o c) edit()
o d) change()
Answer: a) update()
36. Which artisan command is used to roll back migrations?
o a) php artisan migrate:rollback
o b) php artisan rollback
o c) php artisan migrate:down
o d) php artisan migrate:remove
Answer: a) php artisan migrate:rollback
37. What is the default route URL in Laravel?
o a) /default
o b) /home
o c) /index
o d) /
Answer: d) /
38. Which database driver does Laravel use by default?
o a) SQLite
o b) MySQL
o c) Postgres
o d) SQL Server
Answer: b) MySQL
39. Which method in Laravel checks if a query returns any records?
o a) has()
o b) exists()
o c) isAvailable()
o d) isSet()
Answer: b) exists()
40. What is the primary use of Blade in Laravel?
o a) Database management
o b) Middleware creation
o c) View templating
o d) File uploading
Answer: c) View templating
Laravel Relationships (Continued)
41. In a one-to-many relationship, where is the foreign key defined?
o a) On the parent table
o b) On the child table
o c) On both tables
o d) On a third table
Answer: b) On the child table
42. To retrieve all posts for a specific user in a User model with a one-to-many relationship, which method is used?
o a) getPosts()
o b) User::posts()
o c) $user->posts
o d) $user->getPosts
Answer: c) $user->posts
43. In a many-to-many relationship, which method retrieves related models?
o a) belongsToMany()
o b) hasMany()
o c) hasOne()
o d) belongsTo()
Answer: a) belongsToMany()
44. In Laravel, which method would you use to define a "has many through" relationship?
o a) hasManyThrough()
o b) belongsToMany()
o c) belongsToThrough()
o d) hasThrough()
Answer: a) hasManyThrough()
45. Which relationship method should be used to establish that a Comment belongs to both a Post and a User?
o a) hasMany()
o b) belongsTo()
o c) hasOne()
o d) belongsToMany()
Answer: b) belongsTo()
46. If a model has both belongsTo() and hasMany(), which type of relationship is this?
o a) One-to-one
o b) One-to-many
o c) Many-to-many
o d) One-to-many inverse
Answer: b) One-to-many
47. In a one-to-many relationship, which function is used in the parent model?
o a) hasMany()
o b) belongsTo()
o c) has()
o d) belongsToMany()
Answer: a) hasMany()
48. Which of the following defines a polymorphic relationship?
o a) morphOne()
o b) morphToMany()
o c) morphTo()
o d) All of the above
Answer: d) All of the above
Advanced CRUD Operations
49. Which Laravel feature allows you to create soft deletes?
o a) SoftDeletes trait
o b) deleteSoftly
o c) DeletedAt
o d) ForceDelete
Answer: a) SoftDeletes trait
50. How do you restore a soft-deleted record in Laravel?
o a) restore()
o b) undelete()
o c) recover()
o d) getBack()
Answer: a) restore()
51. How do you perform a force delete on a soft-deleted record?
o a) forceDelete()
o b) deletePermanently()
o c) remove()
o d) deleteForever()
Answer: a) forceDelete()
52. Which of the following methods is used to update or insert a record in one statement?
o a) updateOrCreate()
o b) insertOrUpdate()
o c) saveOrUpdate()
o d) upsert()
Answer: a) updateOrCreate()
53. Which of the following is NOT a CRUD operation?
o a) Delete
o b) Update
o c) Retrieve
o d) Save
Answer: c) Retrieve
54. To skip validation in Laravel, which method is used?
o a) skipValidation()
o b) withoutValidation()
o c) noValidate()
o d) bypassValidation()
Answer: b) withoutValidation()
This completes the set of 54 unique and carefully crafted multiple-choice questions focusing on CRUD operations, relationships, pagination, validation, file uploads, and various Laravel fundamentals. With these, beginner students can solidify their understanding of Laravel and its primary features.
Let me know if you’d like any more questions or further clarification on any of these topics!
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give more
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Certainly! Here are additional multiple-choice questions to continue building on Laravel CRUD, relationships, and other key concepts.
Advanced CRUD Operations & Eloquent (Continued)
55. In Laravel, which method is used to paginate a set of results?
o a) paginate()
o b) limit()
o c) chunk()
o d) split()
Answer: a) paginate()
56. Which Laravel method allows you to perform a "chunked" iteration over a large dataset to save memory?
o a) chunk()
o b) paginate()
o c) partition()
o d) segment()
Answer: a) chunk()
57. In Laravel, which class handles form requests and allows you to define validation rules?
o a) Request
o b) FormRequest
o c) Validator
o d) Input
Answer: b) FormRequest
58. Which method do you call to validate data within a controller in Laravel?
o a) validate()
o b) check()
o c) assert()
o d) authenticate()
Answer: a) validate()
59. In Laravel, what does php artisan migrate do?
o a) Creates a new migration file
o b) Executes all pending migrations
o c) Deletes all tables in the database
o d) Updates specific fields in the database
Answer: b) Executes all pending migrations
60. Which artisan command rolls back the last migration?
o a) migrate:reset
o b) migrate:rollback
o c) migrate:remove
o d) migrate:delete
Answer: b) migrate:rollback
61. What is the main purpose of Laravel's seeder classes?
o a) To update schema files
o b) To populate the database with sample data
o c) To create database backups
o d) To automate routing
Answer: b) To populate the database with sample data
62. Which command would you use to create a new seeder in Laravel?
o a) php artisan make:seed
o b) php artisan make:seeder
o c) php artisan create:seed
o d) php artisan seeder:create
Answer: b) php artisan make:seeder
63. To insert multiple records at once in Laravel, which method should be used?
o a) insert()
o b) createMany()
o c) batchInsert()
o d) bulkSave()
Answer: a) insert()
64. In a Laravel form request, where are the validation rules typically defined?
o a) In the rules() method
o b) In the validate() method
o c) In the checkRules() method
o d) In the formRules() method
Answer: a) In the rules() method
65. How can you access old input data in a Laravel Blade template?
o a) {{ old('input_name') }}
o b) {{ previous('input_name') }}
o c) {{ past('input_name') }}
o d) {{ recent('input_name') }}
Answer: a) {{ old('input_name') }}
Laravel Relationships (More on Advanced Relationships)
66. Which relationship type would you define if a Post model can have multiple Tags, and a Tag can be associated with multiple Posts?
o a) One-to-One
o b) One-to-Many
o c) Many-to-Many
o d) Has Many Through
Answer: c) Many-to-Many
67. In a polymorphic relationship, which column is used to store the related model type?
o a) model_type
o b) morph_type
o c) morphable
o d) typeable
Answer: b) morph_type
68. In a hasManyThrough relationship, how many tables are involved?
o a) 2
o b) 3
o c) 4
o d) 5
Answer: b) 3
69. When working with a hasOne relationship, which model contains the foreign key?
o a) The related model
o b) The parent model
o c) Both models
o d) Neither model
Answer: a) The related model
70. Which of the following methods is used to create an inverse relationship?
o a) has()
o b) belongsTo()
o c) morph()
o d) inverse()
Answer: b) belongsTo()
71. To create a "has many through" relationship, which Laravel function is used?
o a) hasMany()
o b) hasManyThrough()
o c) belongsToMany()
o d) hasThrough()
Answer: b) hasManyThrough()
72. In a polymorphic relationship, how do you retrieve all related models for a specific type?
o a) morphTo()
o b) morphMany()
o c) morphOne()
o d) morphAll()
Answer: b) morphMany()
73. Which method would you use in a Laravel model to define a one-to-one relationship?
o a) hasOne()
o b) belongsTo()
o c) hasMany()
o d) hasOneThrough()
Answer: a) hasOne()
File Uploads, Storage, and Validation
74. Which method in Laravel handles file uploads?
o a) move()
o b) store()
o c) upload()
o d) fileUpload()
Answer: b) store()
75. To validate an uploaded file's type as an image in Laravel, which rule should be used?
o a) file
o b) mimes:jpeg,bmp,png
o c) image
o d) mimetype
Answer: c) image
76. Which Laravel file storage method saves files to the storage directory?
o a) disk()
o b) save()
o c) put()
o d) upload()
Answer: c) put()
77. In Laravel, which function is used to retrieve a file from storage?
o a) get()
o b) retrieve()
o c) fetch()
o d) load()
Answer: a) get()
78. What is the purpose of the public_path() helper function?
o a) To access the /storage directory
o b) To access the /public directory
o c) To access the root directory
o d) To access the /app directory
Answer: b) To access the /public directory
79. Which rule in Laravel validates a file's maximum size in kilobytes?
o a) size
o b) filesize
o c) max
o d) fileMax
Answer: c) max
Pagination
80. Which Laravel method is used to add simple pagination to a query?
o a) simplePaginate()
o b) paginateSimple()
o c) basicPaginate()
o d) paginate()
Answer: a) simplePaginate()
81. What is the default number of items per page when using paginate() in Laravel?
o a) 10
o b) 15
o c) 20
o d) 25
Answer: b) 15
82. Which variable is used in Blade to display pagination links?
o a) $pagination
o b) $links
o c) links()
o d) paginate()
Answer: c) links()
This set continues to challenge and develop understanding of CRUD, relationships, validation, file handling, and pagination, giving students a broad view of practical Laravel applications. Let me know if you need further questions or deeper explanations on any specific topic!
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more
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Absolutely! Here are more multiple-choice questions to further cover Laravel’s features, such as middleware, route handling, error handling, and advanced Eloquent techniques.
Middleware and Routing
83. Which command creates a new middleware in Laravel?
o a) php artisan make:middleware
o b) php artisan middleware:create
o c) php artisan create:middleware
o d) php artisan generate:middleware
Answer: a) php artisan make:middleware
84. To apply middleware to a specific route, which key is used in the route definition?
o a) before
o b) middleware
o c) use
o d) with
Answer: b) middleware
85. Which of the following statements best describes middleware in Laravel?
o a) Middleware handles model relationships.
o b) Middleware handles validation and data formatting.
o c) Middleware filters HTTP requests entering the application.
o d) Middleware is used for managing database migrations.
Answer: c) Middleware filters HTTP requests entering the application.
86. How can you apply middleware to all routes within a route group in Laravel?
o a) Use Route::applyMiddleware()
o b) Use Route::group(['middleware' => 'middleware_name'], function () {...})
o c) Use Route::setMiddleware()
o d) Use Route::middlewareGroup()
Answer: b) Use Route::group(['middleware' => 'middleware_name'], function () {...})
87. Which middleware is often used to check if a user is authenticated before accessing certain routes?
o a) web
o b) api
o c) auth
o d) guest
Answer: c) auth
88. Which HTTP method is used by the Route::delete function in Laravel?
o a) GET
o b) POST
o c) DELETE
o d) PATCH
Answer: c) DELETE
89. In Laravel, how do you name a route?
o a) Route::get('url', 'Controller@method')->named('route_name')
o b) Route::get('url', 'Controller@method')->name('route_name')
o c) Route::get('url', 'Controller@method')->routeName('route_name')
o d) Route::get('url', 'Controller@method')->title('route_name')
Answer: b) Route::get('url', 'Controller@method')->name('route_name')
90. To redirect from one route to another in a controller, which function is used?
o a) go()
o b) redirect()
o c) route()
o d) send()
Answer: b) redirect()
Error Handling and Debugging
91. Which file should you edit to customize error pages (e.g., 404, 500 errors) in Laravel?
o a) resources/views/errors/
o b) resources/errors/views/
o c) views/errors/resources/
o d) app/views/errors/
Answer: a) resources/views/errors/
92. To enable debug mode in Laravel, which file should be edited?
o a) .env
o b) config/app.php
o c) routes/web.php
o d) bootstrap/app.php
Answer: a) .env
93. In Laravel, which method can you use to trigger a custom error?
o a) abort()
o b) fail()
o c) halt()
o d) terminate()
Answer: a) abort()
94. What is the default logging channel in Laravel?
o a) syslog
o b) errorlog
o c) single
o d) daily
Answer: c) single
95. Which command clears all Laravel cache, including route, view, and config caches?
o a) php artisan cache:clear
o b) php artisan clear:all
o c) php artisan system:clear
o d) php artisan cache:reset
Answer: a) php artisan cache:clear
96. Which helper function is used to log messages in Laravel?
o a) writeLog()
o b) logMessage()
o c) infoLog()
o d) logger()
Answer: d) logger()
Advanced Eloquent Techniques
97. Which method allows you to update a record only if it exists, otherwise it will create a new one in Laravel Eloquent?
o a) createOrUpdate()
o b) updateOrCreate()
o c) saveOrUpdate()
o d) addOrUpdate()
Answer: b) updateOrCreate()
98. Which Eloquent method would you use to apply a raw SQL function to a column, such as incrementing a value by a specific amount?
o a) increment()
o b) add()
o c) updateRaw()
o d) rawIncrement()
Answer: a) increment()
99. In a Laravel Eloquent model, how would you define a default scope that applies to all queries?
o a) scopeDefault()
o b) defaultScope()
o c) scope()
o d) booted()
Answer: d) booted()
100. To retrieve only specific columns from a database table in Laravel Eloquent, which method should be used? - a) select() - b) columns() - c) fields() - d) pluck()
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**Answer:** a) `select()`
Laravel Commands and Artisan
101. Which command is used to create a new Laravel controller? - a) php artisan make:controller - b) php artisan generate:controller - c) php artisan create:controller - d) php artisan controller:make
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**Answer:** a) `php artisan make:controller`
102. What does php artisan config:cache do in a Laravel application? - a) Deletes the config cache - b) Clears and creates a config cache - c) Refreshes the database cache - d) Resets all application caches
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**Answer:** b) Clears and creates a config cache
103. To view the list of all available artisan commands, which command should be used? - a) php artisan list - b) php artisan commands - c) php artisan show - d) php artisan available
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**Answer:** a) `php artisan list`
104. How do you clear compiled view files in Laravel? - a) php artisan view:clear - b) php artisan cache:clear - c) php artisan clear:views - d) php artisan views:reset
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**Answer:** a) `php artisan view:clear`
105. Which Artisan command is used to reset the database and re-run all migrations and seeders? - a) migrate:fresh --seed - b) migrate:refresh --seed - c) migrate:reset --seed - d) migrate:install --seed
**Answer:** b) `migrate:refresh --seed`