K-Technologies Senior Software Engineer Interview Questions and Answers

2 coding questions one was greedy and 2nd one was of dp.

Round duration - 60 minutes
Round difficulty - Medium

Coding question was given.

Q1. 
Remove Vowels from a Given String
Given a string STR of length N, your task is to remove all the vowels present in that string and return the modified string.
Explanation:
English alphabets ‘a’, ‘e’, ‘i...read more
Ans. 
Remove vowels from a given string while maintaining the relative position of other characters.
• Iterate through each character in the string and check if it is a vowel (a, e, i, o, u).

• If the character is not a vowel, add it to the modified string.

• Return the modified string as the output.
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Round duration - 40 minutes
Round difficulty - Medium

It was first technical round with technical team.

Q1. What is the difference between MySQL and MongoDB?
Ans. 
MySQL is a relational database management system, while MongoDB is a NoSQL database.
• MySQL is a relational database, meaning it stores data in tables with rows and columns.

• MongoDB is a NoSQL database, storing data in collections of JSON-like documents.

• MySQL uses SQL for querying data, while MongoDB uses a query language similar to JSON.

• MySQL is ACID-compliant, ensuring data integrity, while MongoDB sacrifices some ACID ...read more
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Round duration - 30 minutes
Round difficulty - Medium

Tehnical round 2.
Here my projects and internships were evaluated

Q1. Can you explain your projects, including the technologies used and your approach?
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Round duration - 30 minutes
Round difficulty - Easy

HR questions were asked and remuneration details were given to me

Q1. Current roles annd responsibilities and core competencies related questions
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Q1. Connectors, RoHS and REACH, CAPA
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Q1. Basic family and behaviour
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Q2. How is your strength?
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Q3. What is family background?
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Q1. Mostly about .Net, AWS, Angular
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Q1. Mostly about AWS, .Net
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Q1. Behavioral Round + Salary Discussion
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Q1. What happens in the backend when we cret an object in Java? What should be done before creating the method body in Java?
Ans. 
When an object is created in Java, memory is allocated in the heap for the object and its instance variables.
• Memory is allocated in the heap for the object and its instance variables

• Constructor is called to initialize the object

• Reference to the object is returned
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Q1. Explain the working of Springboot and microservices. What can and cannot be done when using Final keyword in Java?
Ans. 
Springboot is a framework for building Java applications, while microservices is an architectural style for developing applications as a collection of small services.
• Springboot simplifies the development of Java applications by providing a set of pre-configured tools and frameworks.

• Microservices architecture breaks down applications into smaller, independent services that can be developed, deployed, and scaled independ...read more
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