Choosing between 'Active Record' and standard SQL in CodeIgniter impacts performance by:
- Active Record is always faster than standard SQL
- Active Record is suitable only for simple queries
- Active Record tends to be slower for complex queries
- Standard SQL is more flexible and performs better
Choosing between 'Active Record' and standard SQL in CodeIgniter impacts performance by: Standard SQL is more flexible and generally performs better for complex queries. While Active Record is convenient for simple queries, it may introduce additional overhead for more intricate database operations. Developers need to consider the nature of the queries and the performance requirements when making this choice.
In an audit, a security expert discovers that a web application is vulnerable to CSRF. The most likely missing security measure is ________.
- Anti-CSRF Tokens
- HTTPS Encryption
- Input Validation
- Session Tokens
Cross-Site Request Forgery (CSRF) is an attack where an attacker tricks the victim's browser into performing an undesired action. To prevent CSRF, web applications commonly use anti-CSRF tokens that are unique per user session. This helps ensure that the request originates from the legitimate user.
When retrieving the latest 10 records from a table sorted by date, the combination of Active Record Class methods to use is: ________.
- get()
- limit()
- order_by()
- select()
To retrieve records with a limit and order them, the sequence is to use select() to choose the columns, order_by() to sort by date, limit() to specify the number of records, and finally get() to execute the query.
In CodeIgniter, what is the best practice for logging database errors?
- Display database errors on the user interface for transparency.
- Ignore database errors to avoid unnecessary log entries.
- Store error logs in a separate database table for easy retrieval and analysis.
- Write errors directly to the application logs for quick debugging.
The best practice for logging database errors in CodeIgniter is to store error logs in a separate database table. This approach allows for easy retrieval, analysis, and monitoring of database-related issues, aiding in efficient debugging and maintenance.
Which of the following is a common practice to prevent SQL injection?
- Disabling error reporting
- Parameterized queries
- Storing sensitive data in plain text
- Using weak passwords
A common practice to prevent SQL injection is to use parameterized queries, which ensure that user input is treated as data and not executable code. This helps to mitigate the risk of malicious SQL injection.
To handle complex scenarios, CodeIgniter's database configuration supports the use of ________ to extend its capabilities.
- drivers
- extensions
- features
- plugins
To handle complex scenarios, CodeIgniter's database configuration supports the use of drivers to extend its capabilities. Drivers allow developers to use different types of databases or customize database functionality as needed.
The practice of writing tests for the smallest pieces of code in a system is known as ________ testing in CodeIgniter.
- Integration
- Regression
- System
- Unit
In CodeIgniter, writing tests for the smallest pieces of code is known as unit testing. It involves testing individual units or components in isolation to ensure they function as expected. This helps identify and fix bugs early in the development process, contributing to overall code reliability and maintainability.
________ is a critical aspect in CodeIgniter that needs optimization for handling high traffic.
- Error Handling
- Routing
- Session Handling
- Templating
Session handling is a crucial aspect in CodeIgniter, especially when dealing with high traffic. Optimizing session management involves efficient storage, retrieval, and handling of user session data to ensure scalability and performance.
In CodeIgniter's Query Builder, what method is used to insert a batch of data into a database table?
- batchInsert()
- bulkInsert()
- insertBatch()
- multiInsert()
The method used to insert a batch of data into a database table in CodeIgniter's Query Builder is insertBatch(). This is handy when you need to insert multiple records at once.
For advanced dependency management in custom libraries, CodeIgniter developers often use the ________ pattern.
- Dependency Injection
- Factory Pattern
- Observer Pattern
- Singleton Pattern
In CodeIgniter, the Factory Pattern is commonly employed for advanced dependency management in custom libraries. It allows developers to create objects without specifying the exact class of the object that will be created. This promotes flexibility and easier maintenance.
An application allows users to share their achievements directly to their social media accounts. This feature primarily utilizes the ________ of the social media platform's API.
- Authentication
- Webhooks
- Endpoints
- Authorization
The correct option is "Authorization." When sharing achievements on social media, the application needs to access the user's account without exposing credentials. Authorization ensures that the app has the necessary permissions to post on the user's behalf.
How can you enable profiling in a CodeIgniter application?
- $config['enable_profiler'] = TRUE;
- $config['enable_profiler'] = FALSE;
- $this->config->set_item('enable_profiler', TRUE);
- $this->config->set_item('enable_profiler', FALSE);
In CodeIgniter, enabling profiling is done by setting the enable_profiler configuration option to TRUE. It provides a detailed report of the execution of your application, helping in performance analysis.