NCompass TechStudio Interview Questions and Answers

- The test was conducted in EvalGround Platform.
- At Stage 1, there was 10 simple English MCQ questions.
- At stage 2, two basic level questions were there from Array.
- At stage 3, three easy to medium level questions were there on Array and Strings.
- At stage 4, three SQL based questions were there where they gave class level diagram and the questions were basically based on Joins.

Q1. The interview round was about 10 minutes.
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Q2. The interviewer mainly asked questions based on my resume and my projects.
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Q3. Most of the questions were asked on web development, more precisely backend development.
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Q4. Python data structures and time complexities of Array and HashMap.
Ans. 
Python data structures and time complexities of Array and HashMap.
• Arrays have O(1) time complexity for accessing elements by index and O(n) for searching and insertion

• HashMaps have O(1) time complexity for accessing, searching, and insertion on average

• Arrays use contiguous memory while HashMaps use a hash function to map keys to indices

• Arrays are best for simple data structures while HashMaps are best for key-value pai
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Q5. Difference between Python, Java and JavaScript.
Ans. 
Python is a high-level, interpreted language. Java is a compiled language. JavaScript is a scripting language.
• Python is dynamically typed, while Java is statically typed.

• Java is platform-independent, while Python is not.

• JavaScript is mainly used for front-end web development.

• Python is popular for data analysis and machine learning.

• Java is commonly used for enterprise applications and Android app development.
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Q6. Lifecycle of an Android Activity.
Ans. 
The lifecycle of an Android Activity includes several stages from creation to destruction.
• An Activity is created with onCreate() method

• It becomes visible with onStart() method

• It becomes interactive with onResume() method

• It goes to background with onPause() method

• It becomes invisible with onStop() method

• It is destroyed with onDestroy() method
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Q1. The HR round was about 10 minutes.
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Q2. Tell me about yourself.
Ans. 
I am a software developer intern with a passion for coding and problem-solving.
• Currently pursuing a degree in Computer Science

• Proficient in programming languages such as Java, C++, and Python

• Experience with web development frameworks like React and Angular

• Strong problem-solving and analytical skills

• Completed several coding projects, including a mobile app for tracking expenses
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Q3. Asked me about my family members.
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Mcqs, aptitude and basic coding questions, mysql queries, english mcqs et

Q1. Question on mysql joins
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Q2. Questions on list datastucture
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The first round was both aptitude and coding test

Q1. SQL queries for a given problem statement
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Q2. Questions related to projects that I have worked
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Logical questions without DSA were asked. If you have good grasp with programming you will be able to solve them.

Q1. Questions were based on the coding questions asked in the previous rounds.
Ans. Next in the HR round, some basic HR questions were asked. If you qualify the technical round, qualifying this shouldn't be difficult.
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Q2. Hr will ask about your interests and hobbies too.
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Basic data structure and algorithm asked in an interview

Asked some simple question and hr discussion why you want to join company