What role does escaping user inputs play in securing a database against SQL injection?
- Escaping prevents malicious SQL code from being executed by treating special characters appropriately
- Escaping user inputs helps to encrypt data during transmission
- It allows direct execution of user inputs in SQL queries
- It has no impact on security
Escaping user inputs is crucial as it involves modifying special characters to make them safe for inclusion in SQL statements, preventing attackers from injecting malicious code.
In the context of XSS, what is the purpose of Content Security Policy (CSP)?
- Control access to databases
- Encrypt sensitive data
- Restrict the sources of content that can be loaded
- Validate form inputs
Content Security Policy (CSP) is a security standard that helps prevent XSS attacks by allowing website owners to specify the trusted sources of content. It restricts the execution of scripts to trusted domains, reducing the risk of malicious script injection.
In CodeIgniter, setting the ________ parameter to FALSE disables auto-commit for the transaction.
- auto_commit
- commit_mode
- disable_auto_commit
- transaction_auto
Setting the auto_commit parameter to FALSE in CodeIgniter disables auto-commit for the transaction. This means changes won't be automatically saved to the database, giving you more control over when to commit.
What is a 'custom exception' and when should it be used?
- A user-defined exception created to handle specific error conditions
- An exception that is never used in practice
- An exception that occurs only in custom-built applications
- An exception thrown by the programming language itself
A 'custom exception' is an exception defined by the programmer to handle specific error conditions in their code. It should be used when there are unique error scenarios that require special handling beyond the standard exceptions provided by the language.
In CodeIgniter, the logging level that includes error messages, debug messages, and informational messages is known as ________.
- ALL
- DEBUG
- ERROR
- INFO
The logging level ALL in CodeIgniter includes error messages, debug messages, and informational messages, providing a comprehensive view of the application's log.
What advanced technique is used in CodeIgniter for optimizing JSON and XML data serialization and deserialization?
- Benchmarking
- Caching
- REST API
- XML-RPC
In CodeIgniter, caching is a common technique used to optimize JSON and XML data serialization and deserialization. Caching reduces the processing time by storing the results of expensive operations.
________ is a key technique in optimizing RESTful APIs in CodeIgniter for better performance.
- Caching
- Encryption
- Middleware
- Throttling
Caching is a crucial technique in CodeIgniter for optimizing RESTful APIs. It involves storing the results of expensive API calls and returning the cached result when the same inputs occur again. This reduces the load on the server and improves overall performance.
To prevent CSRF, a ________ token is often added to forms as a hidden field.
- CSRF
- Random
- Session
- Token
CSRF protection
Which method is used in CodeIgniter to encrypt and decrypt data securely?
- Cipher library
- Encryption is not supported
- OpenSSL library
- mcrypt library
CodeIgniter uses the OpenSSL library for secure encryption and decryption of data. OpenSSL provides a robust set of cryptographic functions, and CodeIgniter leverages it to ensure the confidentiality and integrity of sensitive information. Avoiding outdated libraries like mcrypt is crucial for maintaining security.
In the context of the Email Class, what is the significance of setting MIME types?
- MIME types are irrelevant when dealing with emails.
- MIME types are used to determine the file extension of attachments.
- MIME types define the media type of the email content, such as text or HTML.
- MIME types help in compressing email attachments.
Setting MIME types in the Email Class is crucial for defining the media type of the email content. For example, specifying 'text/html' indicates that the email contains HTML content. It ensures proper rendering on the recipient's end.