________ is a technique in MVC that involves breaking down complex Views into smaller, reusable components.
- Abstraction
- Encapsulation
- Inheritance
- Templating
Templating is a technique in MVC (Model-View-Controller) that involves breaking down complex Views into smaller, reusable components. Templating simplifies the presentation layer by allowing the creation of modular and maintainable views. It promotes code reusability and separation of concerns within the application architecture.
How do migrations in CodeIgniter assist in maintaining consistency across different environments?
- Version Control
- Database Synchronization
- Schema Management
- Code Deployment
Migrations in CodeIgniter play a crucial role in managing database schema changes. The "Schema Management" option refers to the capability of migrations to update the database schema, ensuring consistency across various environments during application deployment.
In client-side validation, which language is commonly used to validate form inputs before submission?
- CSS
- JavaScript
- PHP
- Python
JavaScript is commonly used for client-side form validation. It enables validation before data submission, improving user experience by providing real-time feedback. This helps in catching errors early and reduces the load on the server for validation tasks.
For robust email integration, ________ is used to verify the sender's identity to prevent email spoofing.
- DKIM
- HMAC
- OAuth
- SSL/TLS
DomainKeys Identified Mail (DKIM) is a method used to verify the authenticity of the sender's identity in email communication. It involves adding a digital signature to the email message, which can be verified by the recipient's email server. This helps prevent email spoofing and ensures the integrity of the email content.
How does CodeIgniter's 'Hooks' feature interact with custom libraries?
- Custom libraries cannot be used in conjunction with Hooks
- Hooks are used exclusively for system-level functions
- Hooks can be used to extend the functionality of custom libraries
- Hooks have no interaction with custom libraries
CodeIgniter's Hooks feature allows the extension of custom libraries by providing points in the execution flow where additional functionality can be added.
When sending an email using the Email Class, which parameter is essential to specify the email subject?
- attach()
- headers()
- message()
- subject()
The subject() function in the Email Class is essential when sending an email. It is used to set the email subject, providing a clear and concise description of the email's content. This parameter is crucial for conveying the purpose or topic of the email to the recipient.
Custom error pages in CodeIgniter are typically managed through the ________ directory.
- application/error-pages
- application/errors
- application/system/errors
- application/views/errors
CodeIgniter typically manages custom error pages in the application/views/errors directory. This is where you can create custom views for various error types, providing a more user-friendly experience for your application's users when errors occur.
How does CodeIgniter's view caching mechanism work?
- It compresses views and stores them in a separate folder.
- It encrypts views and caches them in the database.
- It generates dynamic views on-the-fly without caching.
- It stores pre-rendered views in a cache for faster retrieval.
CodeIgniter's view caching mechanism works by storing pre-rendered views in a cache, enhancing performance by avoiding repeated rendering of the same views. This is especially useful in scenarios where views don't change frequently.
How does the use of Object-Relational Mapping (ORM) frameworks contribute to SQL injection prevention?
- It abstracts database interactions
- It encrypts the database
- It uses plain SQL queries
- It validates user inputs only
Object-Relational Mapping (ORM) frameworks, such as those used in CodeIgniter, contribute to SQL injection prevention by abstracting database interactions. This means that the framework automatically handles the translation of high-level object-oriented code into the underlying SQL queries, reducing the risk of SQL injection by preventing direct user input in SQL statements.
In OAuth, what is the difference between an access token and a refresh token?
- A string representing the resource owner's authorization grant
- A token issued to the client to access protected resources
- A token that contains information about the user
- A token used to obtain a new access token
In OAuth, an access token is used to access a resource, while a refresh token is used to obtain a new access token when the original one expires. The refresh token provides a way to maintain access without requiring the user to re-authenticate.