Apexon Senior Consultant Interview Questions and Answers

Q1. Best coding practises
Ans. 
Best coding practices involve writing clean, efficient, and maintainable code.
• Use meaningful variable and function names

• Follow consistent coding style and formatting

• Write comments to explain complex logic

• Avoid duplicate code by using functions and classes

• Test code thoroughly before deployment
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Q2. What is TDD and writing of testcases
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TDD stands for Test-Driven Development, which involves writing test cases before writing the actual code.
• TDD is a software development process where tests are written before the code implementation.

• Test cases are written based on the expected behavior of the code.

• Developers write just enough code to pass the tests, ensuring code quality and functionality.

• TDD helps in identifying bugs early in the development process.

• Ex...read more
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Q1. Deep understanding on your project
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Q2. Why did you choose this way or this techstack and so on
Ans. 
I chose this tech stack because of its scalability, performance, and community support.
• Chose tech stack based on scalability needs

• Selected for performance optimization

• Considered community support for troubleshooting and updates
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Q1. What is higher order functions
Ans. 
Higher order functions are functions that can take other functions as arguments or return functions as results.
• Higher order functions can accept functions as parameters.

• Higher order functions can return functions as output.

• Examples include map, filter, and reduce functions in JavaScript.
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Q2. What is difference b/t types and interface and there use cases
Ans. 
Types define the structure of data while interfaces define the behavior of classes. Types can be used for defining variables and parameters, while interfaces can be used for defining contracts for classes.
• Types define the structure of data, such as primitive types (int, string) or custom types (class, struct)

• Interfaces define the behavior that a class must implement, without specifying how it should be implemented

• Types...read more
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Q1. Data migration strategies
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Q1. Project scenarios
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Q1. Why do you want to join Luxoft
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Q1. Which protocol/protocols works when there is a communication between 2 Pbx systems?
Ans. 
The protocols that work when there is a communication between 2 Pbx systems are SIP (Session Initiation Protocol) and H.323.
• SIP (Session Initiation Protocol) is commonly used for setting up and tearing down voice or video calls over IP networks.

• H.323 is an older protocol used for multimedia communication over IP networks.

• Both SIP and H.323 are commonly used in VoIP (Voice over Internet Protocol) systems to facilitate c
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Q1. 1.Java8, spring boot 2. Microservices architecture
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Q2. Micro service architecture design Pattern
Ans. 
Micro service architecture design patterns are best practices for designing and implementing microservices.
• Use the API Gateway pattern to route requests to the appropriate microservice

• Implement the Circuit Breaker pattern to handle failures gracefully

• Utilize the Service Registry pattern to dynamically discover and communicate with services

• Apply the Saga pattern for managing distributed transactions

• Use the CQRS pattern
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Q1. Design test plan for problem
Ans. 
Designing a test plan for a problem
• Identify the problem statement and objectives

• Define test scope and criteria

• Create test cases based on requirements

• Assign resources and timelines for testing

• Execute test cases and document results
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Q2. Auromation tool
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Q3. Current working model
Ans. 
Currently using agile methodology with daily stand-ups, bi-weekly sprints, and regular client check-ins.
• Agile methodology

• Daily stand-ups

• Bi-weekly sprints

• Regular client check-ins
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Q4. Technical questions
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Coding questions related to JavaScript and React concepts.

They seek a problem-solving approach and adherence to coding standards.