Fatpipe Networks Embedded Software Engineer Interview Questions and Answers

Q1. What is the purpose of the volatile keyword in programming?
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Q2. What are the use cases of unions in the C programming language?
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Q1. What is the purpose of using a 120-ohm resistor in the Controller Area Network (CAN) protocol?
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Q2. What is Pulse Width Modulation (PWM), and how does it work?
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Q1. General discussion.
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Q2. What are your strengths and hobbies?
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Q1. Regular HR questions
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Q2. What's your salary expectation
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10 multiple choice questions and 4 algorithm questions.

Q1. What's RESTful api?
Ans. 
RESTful api is an architectural style for designing networked applications.
• REST stands for Representational State Transfer

• Uses standard HTTP methods like GET, POST, PUT, DELETE

• Resources are identified by URIs

• Stateless communication between client and server

• Responses are typically in JSON or XML format
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Q2. How do you debug with gdb?
Ans. 
Debugging with gdb involves setting breakpoints, stepping through code, inspecting variables, and analyzing memory.
• Set breakpoints at specific lines of code using 'break' command

• Step through code using 'next' or 'step' commands

• Inspect variables using 'print' command

• Analyze memory using 'x' command

• Use 'continue' command to resume execution
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Q3. Tell me about OSI model
Ans. 
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how different networking protocols work together.

• The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has specific functions and communicates w...read more
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Q4. General linux command line questions
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6 sections C coding, Microprocessor coding, C mcq, Microprocessor mcq, General essay writing about yourself and some general stuffs in 100 words.

Q1. Basic C programming questions, resume project.
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Q2. Storage class, compilation process, datatypes, structure, array, file
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