In CodeIgniter, which utility is commonly used to backup a database?
- backup class
- dbbackup helper
- dbmanager utility
- dbutil library
The backup class in CodeIgniter is commonly used to perform database backups. It provides a simple and convenient way to create and manage backups of your database.
What is the primary HTTP method used to retrieve data in a RESTful API developed with CodeIgniter?
- DELETE
- GET
- POST
- PUT
In a RESTful API, the primary HTTP method used to retrieve data is GET. This method is commonly used for reading resources and does not modify the server's state. In CodeIgniter, you would design your API endpoints to respond to GET requests for data retrieval.
How can you enable profiler in CodeIgniter for debugging purposes?
- $this->config->item('enable_profiler', TRUE);
- $this->enable_profiler(TRUE);
- $this->load->library('profiler');
- $this->output->enable_profiler(TRUE);
To enable the profiler in CodeIgniter, you use the $this->output->enable_profiler(TRUE); method. This will display a report at the bottom of your pages, showing benchmark results, queries, and more.
What is the primary purpose of exception handling in software development?
- To enhance code execution speed
- To handle unforeseen runtime errors
- To improve code readability
- To replace regular error messages
Exception handling in software development serves the purpose of managing unforeseen runtime errors that may occur during program execution. It allows developers to gracefully handle and recover from unexpected issues, preventing the application from crashing abruptly.
In CodeIgniter, the class used for file uploads is named ________.
- FileHandler
- FileUploader
- Upload
- UploadHandler
In CodeIgniter, the class responsible for handling file uploads is named "Upload." Developers use this class to manage and validate uploaded files seamlessly.
Which feature in CodeIgniter allows you to track the performance of database queries?
- Active Record
- Database Caching
- Database Profiler
- Query Builder
CodeIgniter's Database Profiler allows you to track the performance of database queries. It helps in identifying slow queries and optimizing database interactions for better application performance.
To analyze recurring errors in a CodeIgniter application, the developer should primarily check the ________.
- Apache Server Logs
- Application Logs
- CodeIgniter Profiler
- Database Queries
Checking the application logs in CodeIgniter is a crucial step in analyzing recurring errors. The logs provide detailed information about errors, warnings, and other important events, helping developers identify and fix issues efficiently.
Using ___________ can effectively prevent SQL injection by separating SQL code from user input.
- Data Encryption
- Dynamic SQL
- Parameterized Statements
- Stored Procedures
SQL injection attacks can be prevented by using parameterized statements. These statements ensure that user input is treated as data and not executable code, effectively separating SQL code from user input and preventing malicious injection.
A mobile app uses OAuth for authentication. The app should primarily use the ________ grant type to ensure security and efficiency.
- Authorization
- Password
- Client Credentials
- Implicit
The correct option is "Client Credentials." This grant type is suitable for confidential clients, such as the mobile app in this scenario, to obtain an access token without the user's involvement. It enhances security and efficiency by authenticating the client itself.
How does CodeIgniter's session management differ when using database versus file-based storage?
- Database storage allows for more complex session data structures.
- File-based storage is faster and more efficient for session handling.
- File-based storage is recommended for small-scale applications.
- Sessions are more secure when stored in a database due to encryption and server-side validation.
CodeIgniter's session management provides enhanced security when stored in a database by employing encryption and server-side validation. This ensures that sensitive information is better protected. However, developers should be mindful of the performance implications and choose the storage method based on the application's needs.