National Infotech Senior Embedded Engineer Interview Questions, Process, and Tips

Q1. What is basic of c
Ans. 
Basics of C include syntax, data types, variables, functions, and control structures.
• C is a procedural programming language

• Variables must be declared before use

• Functions are blocks of code that perform a specific task

• Control structures include if-else, loops, and switch-case

• Data types in C include int, float, char, etc.
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Q2. What is basic of embedded
Ans. 
Embedded systems are specialized computing systems designed to perform specific tasks within a larger system.
• Embedded systems are typically designed to be small, efficient, and reliable.

• They often have limited resources such as memory, processing power, and energy.

• Examples of embedded systems include microcontrollers in household appliances, automotive control systems, and industrial automation.

• Embedded software is spe...read more
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Q3. What is basic of contoller
Ans. 
The basic of a controller is to manage and regulate the operation of a system or device.
• Controllers receive input signals and process them to generate output signals.

• They can be programmed to perform specific tasks or functions.

• Examples include microcontrollers, PLCs, and PID controllers.
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Q1. Volatile keyword
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Q2. Project specific
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Q1. Salary expectations
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Q2. Reason for job change
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Percentage, speed, series, logical abulity, differnces

Q1. C programs, protocols, Embedded C, pointers
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Q2. Strings swapping nibbles using c
Ans. 
Swapping nibbles of strings in C
• Use bitwise operations to swap the nibbles of each character in the string

• Iterate through each character in the string and swap the nibbles

• Ensure to handle edge cases like strings with odd length or non-hex characters
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Q3. I2c, can, spi, uart
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Q1. Normal hr questions
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Q2. Self, company details
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Online c programming test using online tool

Q1. Manager level round - explain about project and area of difficulty in embedded. Which one we work and fix issue
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Q1. Discuss about offer letter
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Very basic c questions like an array

Q1. Programing language
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Syllabus based question

Q1. Introduction, education
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Q1. Mainly focused on basics of c language Stack program
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Q2. Compilation stages , function
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Q1. What is dangling pointer?
Ans. 
A dangling pointer is a pointer that points to a memory location that has been deallocated or freed.
• Dangling pointers can cause crashes or unpredictable behavior.

• They occur when a pointer is not set to NULL after the memory it points to is freed.

• They can also occur when a pointer is used after the memory it points to has been freed.

• Dangling pointers can be avoided by setting pointers to NULL after freeing memory.
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Q1. Difference between static and dynamic library ?
Ans. 
Static libraries are linked at compile-time, while dynamic libraries are linked at run-time.
• Static libraries are included in the final executable file, increasing its size.

• Dynamic libraries are loaded into memory only when needed, reducing the executable size.

• Static libraries are platform-specific, while dynamic libraries can be shared across platforms.

• Static libraries provide faster execution, while dynamic libraries ...read more
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