Service Communication Patterns Quiz: Are You Connected? Quiz

1. Synchronous vs. Asynchronous

   Which communication pattern blocks the sender until the receiver has processed the request and sent a response?

   1. Asynchronous Communication
   2. Synchronous Communication
   3. Pub/Sub Messaging
   4. Event-Driven Architecture
   5. Syncronus Communication

2. Asynchronous Advantages

   Which of the following is a primary benefit of using asynchronous communication in a microservices architecture?

   1. Reduced latency in request processing
   2. Stronger data consistency guarantees
   3. Improved fault tolerance and resilience
   4. Simplified error handling
   5. Easier debugging process

3. Message Queue Selection

   Which component is typically used to facilitate asynchronous communication between microservices?

   1. Load Balancer
   2. API Gateway
   3. Message Queue (e.g., RabbitMQ, Kafka)
   4. Database
   5. Redis Cache

4. Pub/Sub Pattern

   In the publish-subscribe (Pub/Sub) pattern, what is the role of the 'broker'?

   1. To directly call the subscribers with updates
   2. To filter and route messages from publishers to subscribers
   3. To convert messages from one format to another
   4. To authenticate and authorize users.
   5. To provide a single point of failure.

5. Eventual Consistency

   Which consistency model is most commonly associated with asynchronous communication patterns?

   1. Strong Consistency
   2. Atomic Consistency
   3. Immediate Consistency
   4. Eventual Consistency
   5. Consistent Hashing

6. REST API Considerations

   Which HTTP method is typically used for creating a new resource in a RESTful API?

   1. GET
   2. PUT
   3. PATCH
   4. POST
   5. DELETE

7. gRPC vs. REST

   Which communication protocol generally offers better performance and efficiency compared to REST, especially for internal microservice communication?

   1. SOAP
   2. gRPC
   3. HTTP/1.1
   4. GraphQL
   5. RESTful

8. Circuit Breaker Pattern

   What is the primary purpose of the Circuit Breaker pattern in microservice communication?

   1. To automatically scale the number of microservice instances.
   2. To prevent cascading failures by stopping requests to failing services.
   3. To implement authentication and authorization for microservices.
   4. To monitor the performance of microservices.
   5. To automatically retry failed requests.

9. Saga Pattern

   Which pattern is commonly used to manage distributed transactions across multiple microservices?

   1. Two-Phase Commit (2PC)
   2. Saga Pattern
   3. Distributed Lock
   4. Eventual Consistency
   5. Centralized Transaction Manager

10. Handling Communication Failures

    What is the name for implementing a delay between retries when a communication with a service fails?

    1. Rate Limiting
    2. Retry Storm
    3. Backpressure
    4. Exponential Backoff
    5. Dead Letter Queue