Angular Interview Practice Exam 2025 - Free Angular Practice Questions and Study Guide

The environment.ts file in an Angular project serves a crucial role in defining configuration settings for different environments, making option B the right choice. This file typically holds environment-specific variables such as API endpoints, feature toggles, and other settings that might differ between development, staging, and production environments.

For instance, you may have a different API URL in the development environment compared to the production environment. By managing these settings in the environment.ts file, you can easily switch between different configurations without the need to modify your application's core code. During the build process, the appropriate environment configuration can be selected (for example, using environment.prod.ts for production builds), thus ensuring that each deployment of the application is set up securely and efficiently according to the requirements of that specific context.

This organization promotes better maintainability and helps in avoiding hard-coded values throughout the application, enhancing its scalability and adaptability to different operational scenarios.