HARMAN Senior Software Engineer Interview Questions, Process, and Tips

Q1. Question related to C++11 fetaures and STL libraries
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Q2. Doubly linked list complete implementation
Ans. 
Doubly linked list is a data structure with nodes having pointers to both previous and next nodes.
• Each node has a 'prev' and 'next' pointer

• Insertion and deletion can be done at any position

• Traversal can be done in both directions
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Q3. Oops concepts and use in real time project
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Oops concepts are fundamental to software engineering and are used in real-time projects for better code organization and maintenance.
• Encapsulation: Hiding implementation details and exposing only necessary information.

• Inheritance: Reusing code and creating a hierarchy of classes.

• Polymorphism: Using a single interface to represent multiple types of objects.

• Abstraction: Focusing on essential features and ignoring implem...read more
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Q4. Linux basic commands usage
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Linux basic commands are essential for any software engineer. They include commands for file management, system monitoring, and networking.
• File management commands: ls, cd, mkdir, rm, cp, mv

• System monitoring commands: top, ps, df, free, uptime

• Networking commands: ping, traceroute, netstat, ifconfig

• Other useful commands: grep, tar, ssh, chmod, chown

• It's important to understand the syntax and options for each command.

• Exa...read more
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Q5. Any Design patterns explaination if used in previous project
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Yes, I have used the Factory and Singleton design patterns in my previous project.
• I used the Factory pattern to create objects of different classes based on a common interface.

• This helped in reducing the coupling between the client code and the implementation classes.

• I used the Singleton pattern to ensure that only one instance of a class is created and used throughout the application.

• This helped in reducing the memory...read more
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Q1. 2 TECHNICAL AND 1 HR
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Q2. Coding + theory + practical based question + scenario u faced while facing bugs In depth questions about python, generator, iterator, decorators
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Q3. Javascripts basic questions, python basic to advance level
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Codings related questions and multichoice option

Q1. Why we hire u in our company?
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Q2. After 5 years where you look ur self ?
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Q1. WAP to check Power of 2
Ans. 
Check if a given number is a power of 2
• Check if the number is greater than 0

• Use bitwise AND operation to check if only one bit is set in the binary representation of the number

• If the result is 0, then the number is a power of 2
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Q2. RTOs task scheduling process
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Q3. Realtime Audio data handling, .wav format frame structure.
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Q1. Audio protocols - pdm , pcm , tdm , dmic
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Q2. Fft vs dft , usage of cimsis dsp
Ans. 
FFT is a faster algorithm for calculating DFT. CMSIS DSP is a library for signal processing on ARM Cortex-M processors.
• FFT is a more efficient algorithm for calculating the Discrete Fourier Transform (DFT).

• CMSIS DSP is a library provided by ARM for signal processing on Cortex-M processors.

• CMSIS DSP provides optimized functions for common signal processing tasks like filtering, FFT, and matrix operations.
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Q1. 1- Project explain 2- How was structure independent or independent 3- Any challenges
Ans. 
I led a project to develop a new mobile app, ensuring the code structure was independent and scalable. Faced challenges with tight deadlines and changing requirements.
• Led project to develop mobile app

• Ensured code structure was independent and scalable

• Challenges with tight deadlines and changing requirements
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Q2. 1- String questions
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Q3. Maps in java. Some string manipulation question in Js, TS
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Q1. Manageral round
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Q1. Prepare well for code questions in any language and data structures + role specific tool n tech.
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Q1. Managerial + Tech round. Less tech questions, but be prep'd
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Q1. Negotiate as per company's salary band w.r.t the role n no. of years experience.
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