Data Patterns Firmware Engineer Interview Questions and Answers

About C++ programming mcq oops concept

Q1. Explain oops concept, pillars of c++, differences
Ans. 
OOPs concept in C++ involves encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class). Example: class Car { private: int speed; public: void accelerate() { speed += 10; } };

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class ElectricCar : public Car { public: void chargeBattery() {...read more
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Q2. Program on Queue, difference between structure and class
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A queue is a data structure that follows the FIFO (First In First Out) principle. Structure and class are similar in C++, but classes have additional features like data hiding and inheritance.
• In C++, a structure is a user-defined data type that can hold different types of data. It is used to group related data together. Example: struct Queue { int front, rear; int capacity; int* array; };

• A class in C++ is similar to a ...read more
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Good all C and Cpp questions

Q1. Embedded systems, c++ , projects
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Q1. Communication protocols for avionics systems
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Communication protocols used in avionics systems
• ARINC 429: Widely used for digital data transmission in avionics

• CAN bus: Used for communication between avionics systems and components

• Ethernet: Used for high-speed data transfer in modern avionics

• MIL-STD-1553: Commonly used for military avionics systems

• A429: A newer protocol based on ARINC 429, offering higher data rates
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Aptitude and basics of c programming

Q1. About embedded c concepts and c programming
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Q1. Introduction and situation oriented questions
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A good coding skill is needed with basics of any language.

Q1. Knowledge screening on 2nd round
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Q2. Linked list, data structures
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Q3. C C++ programming
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I got placed through Cdac and we had one written test which has aptitude questions and c snippet questions and code writing for 2 programs

Q1. This was mostly related to the field of embedded mostly, told me to write few basic c program on paper like stacks,linked lists and other stuff also asked mostly about project
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Q2. Asked me to explain linked list programs,stacks program,what is embedded systems,interrupts related, communication protocols,basic electronic components
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Q1. Pointer snippets and structure snippets
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Q2. Communication protocols
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