In Django, a view function is primarily used for handling logic, processing data, interacting with the database, and generating dynamic content to be displayed in response to client requests.

Django's templating engine allows developers to use variables to dynamically generate HTML content. These variables can be passed from views to templates, enabling dynamic and data-driven web pages.

FTP (File Transfer Protocol) is a standard network protocol used for transferring files between a client and a server on a computer network. It specifies how files should be exchanged between systems, making it essential for file sharing and management over networks.

The correct option is Agile. Agile methodology focuses on iterative development, collaboration between cross-functional teams, and continuous delivery of working software. It prioritizes customer feedback and adapts to changing requirements, promoting flexibility and responsiveness in software development projects. Agile methods like Scrum and Kanban are widely used in various industries for their efficiency and adaptability.

Kubernetes is a popular tool for orchestrating containerized applications across clusters of machines. It automates deployment, scaling, and management of containerized applications, making it a key choice for container orchestration.

NgModule in Angular is used to organize and consolidate related modules, components, directives, pipes, and services. It also defines metadata such as routing and providers for dependency injection.

Interpolation search and binary search are both searching algorithms used to find a target value within a sorted array or list. Binary search has a worst-case time complexity of O(log n), making it highly efficient for large datasets. On the other hand, interpolation search is an improvement over binary search, especially when the data being searched is uniformly distributed. It achieves an average time complexity of O(log log n) under ideal conditions, making it faster in scenarios where the data is evenly spaced. However, interpolation search requires the data to be sorted, and its performance can degrade to O(n) in worst-case scenarios if the data distribution is skewed. Additionally, interpolation search is adaptive, meaning it can adjust its search range based on the target value's estimated position, potentially improving performance further. Understanding these complexities helps in choosing the most appropriate search algorithm based on the nature of the data and distribution characteristics.

A switch uses the MAC (Media Access Control) address of the destination device to determine the port to which the data packet should be forwarded within a Local Area Network (LAN).

Memory fragmentation refers to the scattering of free memory space into small unusable fragments, reducing overall memory efficiency. It can be mitigated by using memory compaction and allocation strategies.

Unit Testing focuses on testing individual components or units of code in isolation from the rest of the software system. This allows developers to verify the correctness of each unit's behavior independently before integrating them into larger modules or systems. Integration testing, on the other hand, checks the interactions between these units once they are combined, while Regression testing ensures that changes in code or updates do not negatively impact existing functionalities. System testing evaluates the entire system's functionality in its complete environment.