Symfony is a powerful PHP framework renowned for its versatility and robustness. Established in 2005, it follows the MVC architecture, offering reusable components and tools for web development. With a strong community, Symfony excels in creating everything from small apps to complex enterprise systems, making it a top choice for PHP developers.
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Practice Test
71. In Symfony, what is an entity in the context of Doctrine ORM?
A. A type of route
B. A JavaScript library
C. A PHP class that represents a database table
D. A type of middleware
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Answer: A PHP class that represents a database table
72. What is the purpose of annotations in Doctrine ORM entity classes?
A. To create HTML templates
B. To define API routes
C. To configure mapping information between PHP entities and database tables
D. To manage database migrations
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Answer: To configure mapping information between PHP entities and database tables
73. Which Doctrine annotation is commonly used to define the primary key of an entity?
A. ### @Entity
B. ### @PrimaryKey
C. ### @Id
D. ### @Key
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Answer: ### @Id
74. In Symfony Doctrine ORM, what is a repository class used for?
A. To create HTML templates
B. To define API routes
C. To encapsulate database queries and provide a convenient way to fetch entities
D. To manage middleware
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Answer: To encapsulate database queries and provide a convenient way to fetch entities
75. What is the purpose of the Doctrine EntityManager in Symfony?
A. To create HTML templates
B. To define API routes
C. To manage database connections, perform CRUD operations on entities, and execute queries
D. To handle HTTP requests and responses
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Answer: To manage database connections, perform CRUD operations on entities, and execute queries
76. In Symfony Doctrine ORM, what is the purpose of the @ManyToOne annotation?
A. To create HTML templates
B. To define API routes
C. To establish a many-to-one relationship between entities
D. To manage middleware
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Answer: To establish a many-to-one relationship between entities
77. What is a DQL (Doctrine Query Language) in Symfony Doctrine ORM?
A. A JavaScript library
B. A configuration file
C. A domain-specific language for querying objects stored in the database
D. A type of routing
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Answer: A domain-specific language for querying objects stored in the database
78. What is the purpose of Doctrine migrations in Symfony applications?
A. To create HTML templates
B. To define API routes
C. To manage and version-control database schema changes over time
D. To handle HTTP requests and responses
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Answer: To manage and version-control database schema changes over time
79. Which command is used to generate and execute database migrations in Symfony Doctrine ORM?
A. php artisan migrate
B. php bin/console doctrine:migrations:migrate
C. symfony doctrine:generate-migration
D. composer doctrine:migrate
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Answer: php bin/console doctrine:migrations:migrate
80. What is the primary purpose of Symfony's security component?
A. To create HTML templates
B. To manage database migrations
C. To provide authentication and authorization features for Symfony applications
D. To define API routes
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Answer: To provide authentication and authorization features for Symfony applications
