FEV Embedded Software Developer Interview Questions, Process, and Tips

Constructor is a special member function used for initializing objects. Virtual constructor is not possible in C++. Virtual destructor can be implemented.

• Constructor is a special member function with the same name as the class, used for initializing objects.

• Virtual constructor is not possible in C++ as constructors cannot be virtual.

• Virtual destructor is possible in C++ and is used to ensure proper cleanup of resources...read more

Understanding getter setter, virtual function, encapsulation, abstraction in OOP

• Getter and setter methods are used to access and modify private class members respectively

• Virtual functions in C++ allow dynamic binding and are overridden in derived classes

• Encapsulation is bundling data and methods that operate on the data together

• Abstraction is hiding the complex implementation details and showing only necessary features

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Developing embedded software for real-time monitoring system in automotive industry

• Implementing communication protocols like CAN and LIN

• Optimizing code for resource-constrained environments

• Integrating sensors for data collection and analysis

Friend function is a function that is not a member of a class but has access to its private and protected members. Getter setter are methods used to access and modify private variables. Static variables are shared among all instances of a class. Static functions are functions that can be called without an instance of the class.

• Friend function allows external functions to access private and protected members of a class.

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Diamond problem occurs in multiple inheritance when a class inherits from two classes that have a common base class.

• Diamond problem can be resolved using virtual inheritance in C++.

• Virtual inheritance ensures that only one instance of the common base class is inherited.

• Example: class A is inherited by classes B and C, then class D inherits from both B and C. Using virtual inheritance for B and C in D resolves the diamo

Interrupt service routine handles interrupts, watchdog timer resets system if it hangs, lambda function is an anonymous function, baud rate is data transfer rate, CAN frame format is used in Controller Area Network, SPI is Serial Peripheral Interface, Autosar is an automotive software architecture.

• ISR is a function that handles interrupts from hardware devices

• Watchdog timer resets the system if it hangs or stops respon...read more