The process by which a service worker takes control of a page and becomes active is known as activation. Service workers go through several lifecycle phases, and activation is the point at which the service worker becomes active and can start intercepting network requests.

In CSS Modules, class names are indeed made locally scoped by default to avoid naming conflicts. These class names are transformed into unique hashes during the build process, ensuring that they won't clash with other styles elsewhere in the application. So, the correct answer to fill in the blank is "hash."

In styled-components, you can pass props to your styles by passing them as arguments to template literals. This allows you to conditionally apply styles based on the props of a component. It's a powerful feature that enables dynamic styling based on the component's state or data, making your UI more flexible and responsive.

In React, a "Render Prop" is a technique where a component's prop is a function that it uses to share its internal state or some behavior with its child components. This allows for a flexible way to compose components and share logic between them. It is not related to styling or rendering modes.

The diffing algorithm in React optimizes the update process by comparing the new virtual DOM with the previous one. This process, known as "reconciliation," allows React to identify the specific changes that need to be made to the actual DOM, minimizing unnecessary updates and improving performance. The other options are not accurate; React does not re-render the entire tree, use inline styles for optimization, or skip updates without a reason.

React Portals are used when you need to render UI elements like modals, tooltips, or popovers that should visually "float" above their parent components. Portals enable you to render content outside the parent DOM hierarchy while maintaining proper parent-child relationships in terms of events. They are not primarily used for rendering performance optimization, state management, or global CSS styling.

In Immutable.js, to apply a function to each item in a List and return a new List with the results, you would use the map() method. The map() method creates a new List by applying the provided function to each element of the original List, allowing you to perform transformations on the data while maintaining immutability. This is a common operation when working with collections in Immutable.js, and it's a powerful tool for data manipulation.

The "commit" list in React DevTools helps identify components that are candidates for optimization. These components may have unnecessary re-renders or performance bottlenecks, making them prime targets for optimization efforts. It doesn't relate to Redux changes, errors, or Git commits, as it focuses specifically on React component performance.

The primary difference between getServerSideProps and getStaticProps in Next.js is that getServerSideProps retrieves data at runtime on the server during each request, making it suitable for dynamic content. On the other hand, getStaticProps fetches data at build time and is used for pages with data that doesn't change frequently, resulting in faster performance.

Code splitting with React Suspense and React.lazy() is a technique that allows you to split your code into smaller chunks and load only the components needed for the current view. This helps reduce initial load times and improves performance. Minification and gzip compression optimize code size but don't address dynamic loading. Pre-rendering on the server-side enhances SEO and initial load, but it doesn't load code dynamically. A CDN helps with delivery but doesn't handle dynamic loading.