Innova Solutions Senior Principal Engineer Interview Questions and Answers

Use a hash set to remove duplicates in an array of strings

• Create a hash set to store unique elements

• Iterate through the array and add each element to the hash set

• Convert the hash set back to an array to get the unique elements

React virtual DOM is a lightweight copy of the actual DOM, used for efficient updates and rendering in React applications.

• Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.

• React uses virtual DOM to efficiently update and render components without directly manipulating the actual DOM.

• When changes are made to the virtual DOM, React calculates the most efficient way to update the act...read more

React hooks are functions that let you use state and other React features without writing a class.

• React hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• useContext() is a hook that allows you to use the con...read more

Partitions in Kafka are assigned based on the number of partitions specified when creating a topic.

• Partitions are assigned to brokers in a round-robin fashion.

• The number of partitions should be a multiple of the number of brokers to ensure even distribution.

• Reassignment of partitions can be done manually using the Kafka Reassign Partitions tool.

Yes, I have experience using Terraform for infrastructure as code.

• I have used Terraform to provision and manage infrastructure resources in a declarative manner.

• I have written Terraform configuration files to define the desired state of infrastructure components.

• I have used Terraform to automate the deployment of cloud resources such as virtual machines, storage, and networking.

• I have experience with Terraform modules ...read more

I have over 5 years of experience in Functional QA, including creating test plans, executing test cases, and identifying defects.

• Experience creating test plans and test cases

• Identifying defects and working with development teams to resolve them

• Utilizing automation tools to streamline testing processes

• Collaborating with cross-functional teams to ensure product quality

• Experience in regression testing and performance test