1. What is REST API ? Junior A. an independently deployable service owning one business capability and its own data B. a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure C. a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls D. an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes
2. Which term means: "an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes"? Junior A. Service mesh B. gRPC C. Microservice D. REST API
3. Which statement is correct? Junior A. REST API — an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes B. REST API — a client-supplied token letting a server safely deduplicate retried write requests C. REST API — a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure D. REST API — a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services
4. What is Microservice ? Junior A. a client-supplied token letting a server safely deduplicate retried write requests B. a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services C. a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls D. an independently deployable service owning one business capability and its own data
5. Which term means: "an independently deployable service owning one business capability and its own data"? Junior A. Service mesh B. Circuit breaker C. Idempotency key D. Microservice
6. Which statement is correct? Junior A. Microservice — a client-supplied token letting a server safely deduplicate retried write requests B. Microservice — an independently deployable service owning one business capability and its own data C. Microservice — an infrastructure layer (e.g. Istio) handling mTLS, retries and traffic policy between services transparently D. Microservice — a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services
7. What is API gateway ? Mid A. a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure B. an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes C. a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services D. an independently deployable service owning one business capability and its own data
8. Which term means: "a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services"? Mid A. REST API B. gRPC C. Circuit breaker D. API gateway
9. Which statement is correct? Mid A. API gateway — a client-supplied token letting a server safely deduplicate retried write requests B. API gateway — a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services C. API gateway — an infrastructure layer (e.g. Istio) handling mTLS, retries and traffic policy between services transparently D. API gateway — an independently deployable service owning one business capability and its own data
10. What is gRPC ? Mid A. a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure B. an infrastructure layer (e.g. Istio) handling mTLS, retries and traffic policy between services transparently C. a client-supplied token letting a server safely deduplicate retried write requests D. a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls
11. Which term means: "a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls"? Mid A. gRPC B. Microservice C. Service mesh D. Idempotency key
12. Which statement is correct? Mid A. gRPC — a client-supplied token letting a server safely deduplicate retried write requests B. gRPC — an independently deployable service owning one business capability and its own data C. gRPC — an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes D. gRPC — a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls
13. What is Idempotency key ? Mid A. an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes B. a client-supplied token letting a server safely deduplicate retried write requests C. a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure D. a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls
14. Which term means: "a client-supplied token letting a server safely deduplicate retried write requests"? Mid A. REST API B. Idempotency key C. Circuit breaker D. Microservice
15. Which statement is correct? Mid A. Idempotency key — a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services B. Idempotency key — an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes C. Idempotency key — an independently deployable service owning one business capability and its own data D. Idempotency key — a client-supplied token letting a server safely deduplicate retried write requests
16. What is Service mesh ? Senior A. a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls B. an independently deployable service owning one business capability and its own data C. a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure D. an infrastructure layer (e.g. Istio) handling mTLS, retries and traffic policy between services transparently
17. Which term means: "an infrastructure layer (e.g. Istio) handling mTLS, retries and traffic policy between services transparently"? Senior A. REST API B. Circuit breaker C. Service mesh D. gRPC
18. Which statement is correct? Senior A. Service mesh — an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes B. Service mesh — an infrastructure layer (e.g. Istio) handling mTLS, retries and traffic policy between services transparently C. Service mesh — a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls D. Service mesh — an independently deployable service owning one business capability and its own data
19. What is Circuit breaker ? Senior A. a high-performance RPC framework using HTTP/2 and protobuf, common for low-latency service-to-service calls B. a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure C. a client-supplied token letting a server safely deduplicate retried write requests D. an HTTP interface exposing resources via verbs (GET/POST/PUT/DELETE) and status codes
20. Which term means: "a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure"? Senior A. API gateway B. REST API C. Circuit breaker D. Idempotency key
21. Which statement is correct? Senior A. Circuit breaker — a client-supplied token letting a server safely deduplicate retried write requests B. Circuit breaker — a single entry point that routes, authenticates, rate-limits and aggregates calls to backend services C. Circuit breaker — a pattern that stops calling a failing dependency for a cooldown period to prevent cascading failure D. Circuit breaker — an independently deployable service owning one business capability and its own data