Denormalization increases query performance by reducing the number of joins required to retrieve data. By storing redundant data, it eliminates the need for joins, thus improving performance. 

DB2's data compression feature offers efficient storage utilization by compressing data at the row and page levels. By eliminating redundant or repetitive data patterns, compression reduces the amount of storage space required to store large datasets. This results in cost savings and improved performance, as fewer disk I/O operations are needed to access compressed data. Additionally, DB2's data compression feature is transparent to applications and does not require changes to existing code or queries, making it easy to implement and manage. Overall, DB2's data compression feature effectively addresses the storage utilization requirements of organizations with large datasets. 

Handling different screen sizes in Flutter involves using the LayoutBuilder widget along with breakpoints. By defining conditions based on the available screen width, developers can create responsive layouts that adapt to various screen sizes. This approach allows for a flexible and dynamic UI that works well across different devices. Understanding responsive layout strategies is crucial for delivering a consistent user experience in Flutter applications.

The primary purpose of unit testing in Flutter is to test individual components (units) in isolation. Unit tests focus on verifying that each function or method works as intended. By isolating components, developers can catch and fix bugs early in the development process. This helps ensure the reliability of each unit and contributes to the overall stability and quality of the Flutter app.

The 'ByteBuffer' class in Flutter is utilized for efficient byte-level operations on files. It represents a sequence of bytes and provides methods for reading and writing data at the byte level. Flutter developers often use 'ByteBuffer' when working with binary data or performing low-level file operations that require manipulation at the byte level. Understanding how to use 'ByteBuffer' is essential for developers handling file-related tasks that involve byte-level operations.

Flutter handles differences in screen size and resolution by using responsive UI design principles and layout widgets. Developers can create flexible and adaptive user interfaces that automatically adjust to various screen sizes and resolutions. This approach ensures a consistent and visually appealing experience across different devices. Understanding how to design responsive UIs is essential for delivering a seamless user experience in Flutter applications on diverse platforms.

The keyword 'factory' is used to define a named constructor in Dart. Named constructors provide a way to create instances of a class with different configurations or initializations. The 'factory' keyword is used in conjunction with the constructor name to declare a named constructor. Understanding how to use named constructors with 'factory' is essential for building flexible and modular Dart classes that support various instantiation scenarios.

The command flutter pub clean is used to remove unused plugin dependencies from a Flutter project. Running this command cleans up the project's dependencies, removing any packages that are no longer required. This is useful for optimizing the project and reducing unnecessary dependencies. Knowing how to manage dependencies efficiently is essential for maintaining a clean and performant Flutter project.

The primary command to create a new Flutter project for both iOS and Android is 'flutter create'. This command initializes a new Flutter project with the necessary file structure and dependencies. It is the recommended way to start a new Flutter project and is followed by the project name. Understanding this command is fundamental for developers starting with Flutter to set up their projects efficiently.

Integrating a native SDK in Flutter involves key steps such as identifying the SDK's platform compatibility, setting up platform channels, and handling data conversion between Dart and native code. This ensures effective communication between Flutter and the native SDK. Challenges may include dealing with platform-specific nuances and ensuring smooth data exchange. The integration process requires a good understanding of Flutter platform channels and the native SDK's requirements.

To print output to the console in Dart, you use the 'print()' method. It accepts a single argument (the value to be printed) and displays it in the console. This is a common way to debug and display information in Dart.

To specify a dependency from a hosted source in the pubspec.yaml file, you must include the package name and the source keyword followed by the hosted source URL. This allows your Flutter project to fetch the package from the specified source. Understanding the correct syntax in the pubspec.yaml file is crucial for managing dependencies effectively in a Flutter project.