Choreography vs orchestration in Microservices - Quick Revision & Key Differences

Recall & Review

beginner

What is orchestration in microservices?

Orchestration is a centralized approach where a single service controls and manages the interactions between multiple microservices to complete a business process.

beginner

What does choreography mean in microservices?

Choreography is a decentralized approach where each microservice works independently and reacts to events from other services without a central controller.

beginner

Which approach uses a central coordinator: orchestration or choreography?

Orchestration uses a central coordinator to manage service interactions, while choreography does not have a central controller.

intermediate

Name one advantage of choreography over orchestration.

Choreography allows services to be more loosely coupled and scalable because they communicate through events without a central point of control.

intermediate

What is a potential downside of orchestration?

Orchestration can create a single point of failure and may become complex to manage as the number of services grows.

In microservices, which approach relies on event-driven communication without a central controller?

A Choreography

B Orchestration

C Monolithic

D Synchronous API calls

Choreography uses event-driven communication where services react to events independently without a central controller.

Which of the following is a characteristic of orchestration?

A No single point of failure

B Decentralized control

C Services communicate only through events

D Centralized workflow management

Orchestration involves centralized workflow management where one service controls the process.

What is a common risk when using orchestration in microservices?

A Services become too independent

B Increased network latency

C Single point of failure

D No control over service interactions

Orchestration can create a single point of failure because one service manages the entire workflow.

Which approach generally offers better scalability in microservices?

A Choreography

B Synchronous blocking calls

C Monolithic

D Orchestration

Choreography allows services to scale independently by reacting to events without central coordination.

In choreography, how do services coordinate their actions?

A Through a central orchestrator

B By emitting and listening to events

C By polling a shared database

D Using direct synchronous calls only

Services coordinate by emitting and listening to events in an event-driven manner.

Explain the main differences between choreography and orchestration in microservices.

Think about who controls the workflow and how services communicate.

Describe a scenario where choreography would be more suitable than orchestration.

Consider when services should act independently and react to events.