ZF India Technology Center Senior Engineer Interview Questions, Process, and Tips

Comstack is a communication stack used in embedded systems for handling communication protocols.

• Comstack is a software component that manages communication protocols in embedded systems.

• It provides a standardized way for different components to communicate with each other.

• Comstack can handle various communication protocols such as CAN, LIN, FlexRay, etc.

• It abstracts the low-level details of communication protocols from

Bitwise operations in C programs are used to manipulate individual bits within a byte or word.

• Use bitwise AND (&), OR (|), XOR (^), left shift (<<), and right shift (>>) operators.

• Example: x = x & 0x0F; // Clear upper 4 bits of x

• Example: y = y | 0x80; // Set the 7th bit of y

• Example: z = z ^ 0x01; // Toggle the least significant bit of z

• Example: a = a << 2; // Left shift a by 2 bits

• Example: b = b >> 3; // Right shift b

Developed a mobile app for tracking daily water intake

• Used React Native for cross-platform development

• Integrated with Apple HealthKit and Google Fit APIs

• Implemented push notifications to remind users to drink water

• Incorporated gamification elements to encourage consistent usage