Service mesh concept in Microservices - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a service mesh in microservices architecture?

A service mesh is a dedicated layer that manages communication between microservices. It helps with routing, security, and monitoring without changing the microservices themselves.

beginner

Name two common features provided by a service mesh.

Two common features are traffic management (like load balancing and routing) and security (like encryption and authentication between services).

intermediate

How does a service mesh improve security between microservices?

It encrypts communication between services and enforces policies like authentication and authorization automatically.

intermediate

What role do sidecar proxies play in a service mesh?

Sidecar proxies run alongside each microservice instance to handle communication tasks like routing, retries, and security, without changing the service code.

beginner

Give an example of a popular service mesh technology.

Istio is a popular service mesh that provides traffic management, security, and observability for microservices.

What is the main purpose of a service mesh?

A To replace microservices with monoliths

B To store data for microservices

C To build user interfaces

D To manage communication between microservices

A service mesh manages communication between microservices, handling routing, security, and monitoring.

Which component usually runs alongside each microservice in a service mesh?

A Sidecar proxy

B Database

C Load balancer

D API gateway

Sidecar proxies run alongside microservices to manage communication tasks.

How does a service mesh enhance security?

A By removing firewalls

B By storing passwords in plain text

C By encrypting service-to-service communication

D By disabling authentication

Service meshes encrypt communication and enforce authentication to improve security.

Which of these is a popular service mesh tool?

A Istio

B Docker

C Kubernetes

D Jenkins

Istio is a widely used service mesh technology.

What problem does a service mesh solve in microservices?

A Writing frontend code

B Complex communication and security management

C Database schema design

D Hardware provisioning

Service mesh simplifies communication and security between many microservices.

Explain what a service mesh is and why it is useful in microservices.

Think about how microservices talk to each other and what problems a service mesh solves.

Describe the role of sidecar proxies in a service mesh.

Imagine a helper that manages communication tasks for each microservice.