In MVC, ________ is/are responsible for sending back the user response or output.
- Controller
- Model
- Router
- View
In the MVC pattern, the View is responsible for presenting the user interface and sending back the response or output to the user. It receives data from the Controller and displays it to the user in an appropriate format.
For a global e-commerce site, integrating a payment gateway that supports ________ is crucial for handling multiple currencies.
- Cross-Site Scripting
- Multi-Currency Support
- OAuth Authentication
- Two-Factor Authentication
Integrating a payment gateway with multi-currency support is essential for a global e-commerce site to facilitate transactions in different currencies, ensuring seamless cross-border transactions.
To enhance the default behavior of the CodeIgniter framework, a developer decides to use hooks. The implementation of these hooks should be placed in the ________ directory.
- application/config/hooks
- application/hooks
- system/config/hooks
- system/hooks
CodeIgniter hooks are stored in the application/hooks directory. This allows developers to extend or modify the behavior of the framework at specific points during the execution of the application.
While setting up an automated email notification system, a developer encounters issues with email deliverability. The first component to check would be ________.
- SMTP Server
- Email Template
- DNS Records
- Spam Filters
The correct option is "DNS Records." DNS records, specifically the SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) records, play a crucial role in email deliverability. Incorrect DNS configurations can lead to emails being marked as spam.
The ________ directory is crucial for managing different cache types in a CodeIgniter application.
- cache
- controllers
- helpers
- views
The 'cache' directory in CodeIgniter is essential for managing various cache types. Caching improves application performance by storing temporary data that can be quickly retrieved, reducing the need for time-consuming operations. Developers can configure and manage caching through this directory.
A developer creates a custom logging library in CodeIgniter for enhanced application monitoring. The appropriate method to integrate this library into the application's workflow is ________.
- Extend the CI_Log class
- Manually include the library in controllers
- Register the library in the autoload.php file
- Use autoload configuration
To integrate a custom library in CodeIgniter, developers should extend the CI_Log class. This ensures that the custom library functions as part of the core logging functionality, allowing for enhanced application monitoring. Autoload configuration is used for loading libraries, but extending the CI_Log class is the appropriate method for custom logging functionality.
When implementing pagination in an e-commerce site with filters, the developer must ensure that selected filters persist across different pages. This is typically achieved by ________.
- Embedding filter selections in the URL as query parameters
- Reloading filters on each page using AJAX
- Storing filter selections in session variables
- Using cookies to store filter selections
To ensure selected filters persist across pages, it's common to embed filter selections in the URL as query parameters. This allows the server to reconstruct the filter state on each request, ensuring a consistent user experience across paginated results.
The database configuration file in CodeIgniter is located at application/config/________.php.
- config
- database
- database.php
- dbconfig
The database configuration file in CodeIgniter is located at application/config/database.php. It holds settings such as database connection details, type, hostname, username, password, and other database-specific configurations. Developers customize this file to establish database connections and configure database-related settings.
What are DKIM and SPF, and why are they important in email integration?
- DKIM (DomainKeys Identified Mail) provides a digital signature to verify the sender's identity, while SPF (Sender Policy Framework) specifies which mail servers are authorized to send emails on behalf of a domain.
- DKIM and SPF are alternative names for email attachments.
- DKIM and SPF are both email delivery services.
- DKIM ensures secure email encryption, while SPF enhances email content filtering.
DKIM and SPF are essential in email integration. DKIM provides a digital signature to verify the sender's identity, and SPF specifies authorized mail servers. Together, they enhance email security and reduce the risk of email spoofing.
How does CodeIgniter handle RESTful API authentication?
- Basic Authentication
- JWT (JSON Web Tokens)
- OAuth 2.0
- Using API keys
CodeIgniter handles RESTful API authentication through OAuth 2.0, which is a widely used protocol for securing API access. OAuth 2.0 provides a standardized way for applications to authenticate and authorize users without exposing their credentials. This enhances the security of RESTful API interactions in CodeIgniter.