Microservices Specialist Assessment

Q: What is this java-spring-boot mock test?

This is a comprehensive java-spring-boot mock test with 25 questions covering API Gateway, Service Discovery, Resilience. It simulates real technical interviews with timed conditions and provides detailed explanations.

Q: How long does the test take?

The test has a time limit of 90 minutes. You can pause and resume, but we recommend completing it in one sitting.

Q: Will I get feedback on my answers?

Yes! After each question, you receive immediate feedback with detailed explanations. At the end, you get a comprehensive report showing your strengths and areas for improvement.

Q: Is this test suitable for FAANG interview preparation?

Absolutely! Our questions are curated by FAANG interviewers and cover the exact topics and difficulty levels you'll encounter in top tech company interviews.

Question 1

In a microservices architecture, what is the primary responsibility of an API Gateway?

Answer

Request routing, authentication, rate limiting, and aggregating responses from multiple services

Question 2

Which service discovery pattern allows a client to query a registry and then directly call a serv...

Answer

Client-side discovery (e.g., Netflix Eureka + Ribbon)

Question 3

What is the 'Circuit Breaker' pattern and which state allows a service to attempt recovery?

Answer

Three states: CLOSED (normal), OPEN (failing), HALF-OPEN (testing recovery)

Question 4

In the 'Saga' pattern for distributed transactions, what is a 'compensating transaction'?

Answer

A transaction that undoes the effects of a previous transaction when a failure occurs

Question 5

What is the difference between 'Orchestration' and 'Choreography' in Saga implementation?

Answer

Orchestration uses a central coordinator; Choreography uses event-driven coordination without a central controller

Question 6

What is 'sticky session' and why is it problematic in horizontally scaled microservices?

Answer

A load balancing technique that routes a user to the same instance; it breaks statelessness and complicates scaling

Question 7

In Kubernetes, what is a 'Service' resource used for?

Answer

Providing stable network endpoint to a set of pods with load balancing

Question 8

What problem does a 'Service Mesh' (like Istio or Linkerd) solve?

Answer

Observability, traffic management, and security between services without changing application code

Question 9

What is 'distributed tracing' and which standard is commonly used (e.g., in Jaeger or Zipkin)?

Answer

Tracking a request across multiple services using trace IDs and spans; OpenTelemetry standard

Question 10

What is the 'Strangler Fig Pattern' in the context of monolith to microservices migration?

Answer

Gradually replacing specific functionalities with microservices while the monolith still handles other requests

Microservices Specialist Assessment

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What You'll Get