When encountering a 'database connection error' in a deployed CodeIgniter application, the immediate step is to check the ________ configuration.
- Caching Configuration
- Database Connection
- Error Logging
- Server Environment Configuration
In the case of a 'database connection error' in a deployed CodeIgniter application, the immediate step is to check the database connection configuration. This involves verifying the database hostname, username, password, and database name in the database.php configuration file to ensure they match the production environment.
In CodeIgniter, which library is commonly used for building RESTful APIs?
- Database_Library
- Form_Validation
- REST_Controller
- Session_Library
The REST_Controller library is commonly used in CodeIgniter for building RESTful APIs. It provides a set of convenient methods for handling RESTful requests and responses, making it easier to implement RESTful architecture in your CodeIgniter application.
What is the impact of high-level logging on the performance of a CodeIgniter application?
- High-level logging is not supported in CodeIgniter
- Improves performance by reducing errors
- Negligible impact
- Significant impact, leading to slower performance
High-level logging in CodeIgniter can have a significant impact on performance, potentially causing slower response times due to increased log processing.
In CodeIgniter, efficient use of ________ can significantly reduce database load.
- Active Record
- Database Transactions
- Eloquent ORM
- Query Builder
CodeIgniter's Query Builder provides a convenient way to interact with databases. By using it efficiently, you can optimize queries and reduce database load, leading to improved performance in database operations.
What is the primary purpose of logging in CodeIgniter?
- Data storage
- Debugging
- Error tracking
- User activity tracking
The primary purpose of logging in CodeIgniter is to track errors and issues within the application. It helps developers identify and fix problems, leading to a more robust and stable application.
To ensure backward compatibility in a CodeIgniter application update, unit testing should prioritize ________.
- CodeIgniter core functionalities
- Handling deprecated functions
- New features and enhancements
- User interface changes
To ensure backward compatibility, unit testing should prioritize handling deprecated functions. This ensures that the existing functionalities remain intact even with the updates.
What is the impact of using a whitelist approach for input validation in SQL injection defense?
- It allows only predefined, safe inputs
- It blocks all user inputs
- It encrypts the database
- It relies on blacklisting known dangerous inputs
Using a whitelist approach for input validation in SQL injection defense involves allowing only predefined, safe inputs to be accepted by the application. This approach helps prevent SQL injection by explicitly specifying the permissible inputs, thereby reducing the risk of unauthorized SQL commands being injected into the application.
Form validation that involves checking the data against a set of rules before it's processed is known as ________ validation.
- Dynamic
- Pre-submission
- Real-time
- Static
Pre-submission validation checks data against a set of rules before it's submitted, ensuring that only valid data is processed, enhancing the integrity of the submitted information.
To strengthen CSRF defenses, the technique of ________ is used to ensure the origin of the request.
- Cross-Origin Resource Sharing (CORS)
- Cross-Site Request Forgery (CSRF)
- Cross-Site Scripting (XSS)
- SameSite Cookies
SameSite Cookies is a technique used to strengthen CSRF defenses by controlling when cookies are sent with cross-site requests, ensuring the origin of the request.
What is a typical challenge when implementing complex database migrations?
- Code Refactoring
- Cross-Browser Compatibility
- Data Integrity
- Performance Optimization
Implementing complex database migrations often poses challenges to data integrity. Ensuring that data remains accurate and consistent throughout the migration process is a critical consideration.