Quiz: Microservices Basics

5 questionsNo time limitPass: 60%+10 XP on first pass

When to split a monolith, how microservices find each other with a Eureka discovery server, and how a Spring Cloud API Gateway routes every request — with tested Spring Boot 4 and Spring Cloud 2025 code.

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Question 1
What problem does a discovery server like Eureka solve?
Storing user passwordsLetting services find each other's current addresses by nameCompiling microservices fasterReplacing the database
Question 2
In a gateway route, what does lb://course-api mean?
A local file pathA load-balancer hardware deviceLook up course-api's instances in discovery and load-balance between themA database connection string
Question 3
Which is a key rule of microservice data design?
All services share one database for consistencyEach service owns its own dataData is stored only in KafkaServices never store data
Question 4
When is a monolith the better choice?
For a new product with a small teamNever — microservices are always betterOnly for banking appsWhen you need more than one database
Question 5
What is the API gateway's main role?
Running database migrationsBeing the single entry point that routes requests and handles cross-cutting concernsRegistering services in EurekaSending Kafka events

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