Which solution acts as a reverse proxy to accept all API calls and aggregates the required services to fulfill such requests?

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Multiple Choice

Which solution acts as a reverse proxy to accept all API calls and aggregates the required services to fulfill such requests?

Explanation:
An API gateway acts as a reverse proxy at the edge of a system, accepting all API calls from clients and handling the orchestration needed to fulfill those requests. It routes each call to the appropriate microservice or set of services, and can aggregate responses from multiple services into a single, cohesive reply. This central point also manages cross-cutting concerns like authentication, rate limiting, logging, caching, and protocol transformations, so clients interact with one unified interface rather than multiple services. Other options don’t fit this role: an XML Gateway focuses on transforming and routing XML messages in enterprise integrations rather than general API request aggregation; a network-based NIDS monitors traffic for security threats rather than orchestrating API calls; an Internet Gateway is a network device that provides connectivity to the internet, not an API orchestration point.

An API gateway acts as a reverse proxy at the edge of a system, accepting all API calls from clients and handling the orchestration needed to fulfill those requests. It routes each call to the appropriate microservice or set of services, and can aggregate responses from multiple services into a single, cohesive reply. This central point also manages cross-cutting concerns like authentication, rate limiting, logging, caching, and protocol transformations, so clients interact with one unified interface rather than multiple services.

Other options don’t fit this role: an XML Gateway focuses on transforming and routing XML messages in enterprise integrations rather than general API request aggregation; a network-based NIDS monitors traffic for security threats rather than orchestrating API calls; an Internet Gateway is a network device that provides connectivity to the internet, not an API orchestration point.

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