Formel D Interview Questions and Answers

Microservices are smaller, independent services that work together, while monolithic model is a single, large application.

• Microservices are smaller, independent services that can be developed, deployed, and scaled independently.

• Monolithic model is a single, large application where all components are tightly coupled.

• Microservices communicate with each other through APIs, while monolithic applications use in-process communication.

• Microservices allow for better fault isolation a...read more

Inter service communication in a distributed system involves communication between different services to achieve a common goal.

• Use of APIs for communication between services

• Message queues for asynchronous communication

• Service discovery for locating and connecting to services

• Implementing protocols like REST, gRPC, or MQTT

• Handling communication failures and retries

I automate using Robot framework by creating test cases in a keyword-driven format and utilizing built-in libraries and custom keywords.

• Create test cases using Robot framework syntax

• Utilize built-in libraries for common tasks

• Develop custom keywords for specific automation needs

• Leverage variables and data-driven testing

• Integrate with external tools and APIs for comprehensive automation

Kubernetes handles scaling by automatically adjusting the number of pods based on resource usage.

• Kubernetes uses Horizontal Pod Autoscaler (HPA) to automatically scale the number of pods based on CPU or memory usage.

• HPA adjusts the number of replicas of a Deployment, ReplicaSet, or StatefulSet.

• Kubernetes also supports Vertical Pod Autoscaler (VPA) for adjusting resource requests and limits of pods based on resource usage.

• Cluster Autoscaler automatically adjusts the size of th...read more

Containers are a lightweight, standalone executable package that includes everything needed to run a piece of software, while pods are a group of one or more containers that share resources and are scheduled together on the same host.

• Containers are individual units of software that package up code and dependencies, while pods are a higher-level concept in Kubernetes that can contain one or more containers.

• Containers are isolated from each other and communicate over network in...read more