Advanced MVC frameworks often implement ________ to manage dependencies among components efficiently.
- Dependency Injection
- Lazy Loading
- Method Overloading
- Polymorphism
Advanced MVC frameworks often implement Dependency Injection to manage dependencies among components efficiently. Dependency Injection involves providing a component with its dependencies rather than allowing it to create them. This promotes flexibility, testability, and easier maintenance by decoupling components and facilitating easier component substitution.
How do you load a custom library in a CodeIgniter controller?
- $this->library->load('custom_library');
- $this->load->library('custom_library');
- $this->load_library('custom_library');
- $this->load_library('custom_library');
In a CodeIgniter controller, you can load a custom library using the syntax: $this->load->library('custom_library');. This initializes the library, making its functions and methods available within the controller.
When a developer encounters a complex query requirement that involves conditional aggregation, the most suitable Query Builder method to use is ________.
- aggregate()
- conditional()
- group_by()
- having()
In CodeIgniter's Query Builder, the having() method is used for conditional aggregation. It is applied after the group_by() clause and is suitable for handling complex queries that involve conditional aggregations.
When implementing a multi-lingual site in CodeIgniter, the Model adapts the data retrieval logic using ________.
- Config Files
- Helper Functions
- Language Files
- Routes
CodeIgniter supports multi-lingual sites by allowing the Model to adapt data retrieval logic using Language Files, making it easier to manage and organize language-specific content in the application.
What is a major security concern when implementing the direct post method in payment gateways?
- Cross-Site Scripting (XSS)
- Data Interception
- Man-in-the-Middle Attacks
- Tokenization
The major security concern when implementing the direct post method is data interception, where sensitive information can be intercepted during transmission. This vulnerability must be addressed to ensure secure payment transactions.
Why is user input validation important in preventing SQL injection?
- It enhances user experience
- It ensures the correct syntax of SQL queries
- It is not important in preventing SQL injection
- It prevents attackers from accessing the server
User input validation is crucial in preventing SQL injection as it ensures that the input adheres to the expected data format, thereby preventing malicious input that could be used to manipulate SQL queries.
Which OAuth grant type is most suitable for a web application with a server backend?
- Authorization Code
- Client Credentials
- Implicit
- Resource Owner Password Credentials
The Authorization Code grant type is recommended for web applications with a server backend because it provides an additional layer of security by requiring the exchange of an authorization code for an access token.
The process where the Model sends data to the View is known as ________.
- Data Binding
- Data Flow
- Data Rendering
- Data Transmission
The process where the Model sends data to the View is known as Data Rendering. In this step, the Model provides data to the View, and the View is responsible for presenting it to the user in a suitable manner.
For load balancing, CodeIgniter allows the specification of multiple database servers in the ________ array.
- config
- connection
- database
- server
CodeIgniter allows the specification of multiple database servers in the database array. This feature is useful for load balancing and managing multiple database connections efficiently.
In a typical payment gateway integration, which component is responsible for handling customer payment details securely?
- Application interface
- Database server
- Payment gateway API
- Web server
The payment gateway API is responsible for securely handling customer payment details. It encrypts and transmits sensitive information, such as credit card numbers, to the payment gateway for processing while ensuring data integrity and confidentiality.