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.
For tracking memory usage and execution time, CodeIgniter developers often use ______ markers.
- Benchmark
- Logger
- Profiler
- Trace
CodeIgniter's Profiler class allows developers to mark specific points in the code to track memory usage and execution time. These markers aid in performance analysis and optimization.
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.
What is the concept of 'exception propagation' in error handling?
- Propagation allows an exception to travel up the call stack until it is caught by an appropriate catch block.
- Propagation is a feature in CodeIgniter that automatically logs exceptions.
- Propagation is the process of creating custom exceptions in CodeIgniter.
- Propagation refers to the automatic handling of exceptions by the PHP interpreter.
Exception propagation in CodeIgniter involves allowing an exception to move up the call stack until it encounters a suitable catch block. This mechanism helps in centralized handling of exceptions at higher levels, enhancing code maintainability.
During a penetration test, it's found that a script from an external domain is executing malicious actions. This indicates a potential ________ vulnerability.
- Cross-Origin Resource Sharing (CORS)
- Cross-Site Request Forgery (CSRF)
- Cross-Site Scripting (XSS)
- SQL Injection
The presence of a script from an external domain executing malicious actions suggests a Cross-Site Scripting (XSS) vulnerability, where untrusted data is rendered without proper validation or escaping.
In a multi-step form, ensuring that each step is validated before proceeding to the next is an example of ________ validation.
- Front-to-back
- Incremental
- Sequential
- Step-wise
Sequential validation ensures that each step is validated before moving to the next. It ensures data integrity throughout the form submission process.
In a multi-threaded application, an exception in one thread should be handled in a way that ________.
- Does not affect other threads
- Pauses all threads until resolved
- Prompts the user for a resolution
- Terminates the entire application
Handling an exception in a way that does not affect other threads is essential in a multi-threaded application. Pausing or terminating the entire application is generally not recommended as it could disrupt other threads and impact the overall application stability.