SanDisk India Device Design Centre Interview Questions and Answers

To check stack overflow, monitor stack usage and compare it to the maximum stack size.

• Monitor stack usage by keeping track of the current stack pointer.

• Compare the current stack pointer to the start of the stack and the maximum stack size.

• Use a watchdog timer to detect stack overflow if the stack pointer exceeds the maximum stack size.

• Use a stack overflow handler to gracefully handle stack overflow and prevent sys...read more

The 15th bit of the hexadecimal number 0x12345678 is 0.

• To find the 15th bit, convert the hexadecimal number to binary.

• Counting from right to left, the 15th bit is the 2nd bit from the left.

• In this case, the 15th bit is 0.

I approached the technical question methodically, breaking it down into manageable parts for clarity and efficiency.

• Analyzed the problem statement to understand requirements and constraints.

• Identified key components and algorithms needed to solve the problem.

• Implemented a step-by-step approach, testing each part as I built the solution.

• Utilized debugging techniques to troubleshoot and optimize the code.

• Reviewed th...read more

A low pass analog filter is designed to allow low frequency signals to pass through while attenuating high frequency signals.

• Determine the cutoff frequency for the filter

• Choose a suitable filter design method (e.g., Butterworth, Chebyshev, etc.)

• Select the appropriate order for the filter

• Design the filter circuit using passive components (resistors, capacitors, inductors)

• Simulate and test the filter response using ...read more

A process is an instance of a program, while a thread is a unit of execution within a process. Threading in Linux allows for concurrent execution.

• A process is an independent entity that can be scheduled and allocated resources by the operating system.

• Threads are lightweight units of execution within a process that share the same memory space.

• Threading in Linux is implemented using the clone() system call.

• Threads i...read more

Regression, smoke, and sanity testing are different types of software testing used to ensure the quality of a product.

• Regression testing involves retesting the software after changes to ensure that new code has not adversely affected existing functionality.

• Smoke testing is a preliminary test to check if the basic functionalities of the software are working fine before proceeding with further testing.

• Sanity testing...read more