What is the primary purpose of session management in web applications?
- Enhancing security by storing user data securely
- Facilitating server-side rendering
- Improving database performance
- Managing and persisting user data across multiple requests
Session management is crucial for persisting user-specific data across different requests. It allows web applications to maintain stateful interactions with users by storing data like user preferences, authentication details, etc. This enhances the user experience and makes it easier to manage user-related information.
To add custom query parameters to pagination links, the ________ configuration option is used.
- custom_params
- page_query_string
- link_params
- query_options
The page_query_string configuration option in CodeIgniter allows the addition of custom query parameters to pagination links, facilitating customization based on specific requirements.
In a scenario where a user logs in through a social media account and their profile picture and bio are automatically updated in the app, this process is known as ________.
- Data Synchronization
- OAuth Integration
- Social Media Scraping
- User Profiling
The correct option is "Data Synchronization." This process involves updating user data in the app in real-time based on changes in the external source, in this case, the social media account. It ensures that the app reflects the latest information from the user's profile.
How does exception handling contribute to a program's robustness?
- Enhances code reliability by handling unexpected errors gracefully
- Increases code complexity and performance issues
- Only applicable in certain programming languages
- Reduces the need for testing
Exception handling improves a program's robustness by allowing it to gracefully handle unexpected errors. It prevents abrupt termination and provides mechanisms to recover or log errors, contributing to overall code reliability.
When integrating a third-party library in CodeIgniter, it is usually placed in which directory?
- application/libraries
- application/third_party
- system/libraries
- system/third_party
When integrating a third-party library in CodeIgniter, it is usually placed in the "application/third_party" directory. This directory serves as a designated location for external libraries that are not part of the CodeIgniter core. Organizing third-party libraries in this directory helps maintain a clean and structured project layout.
During a system upgrade, a developer uses ________ in CodeIgniter to ensure database compatibility with new features.
- controllers
- migrations
- models
- seeds
In CodeIgniter, migrations are used to version control the database schema. During a system upgrade, a developer can create and run migrations to modify the database structure, ensuring compatibility with new features.
What is the primary security concern when allowing file uploads in a web application?
- Allowing unauthorized access to user data
- Executing malicious scripts through file uploads
- Exposing the server's file structure
- Overloading the server with excessive file uploads
The primary concern is the risk of executing malicious scripts through file uploads. By allowing users to upload files, there is a potential threat of uploading files containing scripts that can harm the application and compromise security. Proper validation and filtering are essential to mitigate this risk.
Which tool is commonly used for managing database migrations in CodeIgniter?
- Artisan
- CodeIgniter Migrate Tool
- Migrations are managed manually
- phpMyAdmin
CodeIgniter Migrate Tool is commonly used for managing database migrations. It provides a command-line interface to handle migration tasks, making it easier for developers to version control and apply changes to the database schema.
A common issue when integrating third-party libraries in CodeIgniter is __________, which can be resolved by careful version management.
- Class Overloading
- Dependency Collision
- Method Overriding
- Namespace Conflict
One common problem is a Dependency Collision, where different libraries or components may rely on conflicting versions of the same dependency. This can be resolved by carefully managing the versions of the libraries and their dependencies.
In CodeIgniter, the setting $config['sess_ ________'] can be used to enable session encryption for added security.
- encrypt_sessions
- encryption
- secure_encrypt
- session_encrypt
The setting $config['sess_encryption'] in CodeIgniter can be used to enable session encryption. When set to on, it encrypts the session data for added security. This is particularly useful when dealing with sensitive information in the session, providing an additional layer of protection against unauthorized access.