Comviva Technology Interview Questions, Process, and Tips

My favorite programming language is Python because of its simplicity, readability, and versatility.

• Simplicity of syntax makes it easy to learn and use

• Readability allows for efficient collaboration with other developers

• Versatility in application across various domains such as web development, data analysis, and automation

Heap and stack memory are two types of memory storage in computer systems. Heap memory is used for dynamic memory allocation, while stack memory is used for static memory allocation.

• Heap memory is used for storing objects that are created at runtime and can be accessed randomly.

• Stack memory is used for storing local variables and function call information.

• Example: When a new object is created using 'new' keyword in Jav...read more

A template is a pre-designed format used as a starting point for a document or file. A literal is a value that is written exactly as it is.

• Template: Used as a starting point for documents or files

• Literal: Value written exactly as it is

• Example: Template for a resume, literal value 'Hello World'

Functional components are stateless components in React that are defined as functions, while class components are stateful components defined as ES6 classes.

• Functional components are simpler and easier to read/write compared to class components

• Functional components do not have access to lifecycle methods or state, while class components do

• Class components can have local state and use lifecycle methods like componentDid...read more

Count the frequency of each element in a string

• Create a dictionary to store the count of each element

• Iterate through the string and update the count in the dictionary

• Return the dictionary with frequencies of each element

Use a tool like Rails migration to add a new column to the database table in production with 100 million data.

• Create a new Rails migration file to add the new column to the database table.

• Test the migration locally to ensure it works as expected.

• Deploy the migration to the production environment during a maintenance window to avoid downtime.

• Consider using tools like ActiveRecord's `change_column` method to efficiently

An application running in cloud with tightly coupled infrastructure can be deployed to on-premise by decoupling the components and using containerization.

• Decouple the application components to make them more portable

• Use containerization technologies like Docker to package the application and its dependencies

• Deploy the containerized application to on-premise servers using tools like Kubernetes for orchestration

I led a project to implement a new CRM system for a large retail company.

• Led a project to implement CRM system

• Worked closely with stakeholders to gather requirements

• Managed a team of developers and testers

• Conducted user training sessions

• Ensured successful deployment and adoption of the new system

Yes, I am open to relocating to Bengaluru for the Senior Engineer position.

• I am willing to relocate to Bengaluru for the right opportunity.

• I have experience relocating for previous job positions.

• I am excited about the prospect of working in Bengaluru and contributing to the team.