Spring Cloud Spring Cloud Gateway & Load Balancing

Question 1

What replaces the deprecated Netflix Zuul as the recommended API gateway in Spring Cloud?

Accepted Answer

Spring Cloud Gateway

Answer

Spring Cloud Gateway, built on Spring WebFlux and Project Reactor, is the modern replacement for the deprecated Netflix Zuul API gateway.

Question 2

Which programming model does Spring Cloud Gateway use for reactive, non-blocking request processing?

Accepted Answer

Spring WebFlux with Project Reactor

Answer

Spring Cloud Gateway is built on Spring WebFlux and Project Reactor, providing non-blocking, reactive request routing and filtering.

Question 3

In Spring Cloud Gateway, what is a 'Predicate' used for?

Accepted Answer

Matching incoming requests to determine which route to apply

Answer

Predicates in Spring Cloud Gateway are conditions evaluated against incoming requests (path, headers, method, etc.) to determine if a route matches.

Question 4

What is the purpose of a 'Filter' in Spring Cloud Gateway?

Accepted Answer

Modifying the incoming request or outgoing response before/after routing

Answer

Filters in Spring Cloud Gateway can inspect and modify HTTP requests and responses, enabling cross-cutting concerns like authentication, logging, and header manipulation.

Question 5

Which Spring Cloud Gateway predicate routes requests where the path matches `/api/orders/**`?

Accepted Answer

Path=/api/orders/**

Answer

The Path predicate factory in Spring Cloud Gateway routes requests whose URI path matches the specified Ant-style pattern.

Spring Cloud Practice Test

Spring Cloud Practice Test

Spring Cloud Spring Cloud Gateway & Load Balancing