d-Matrix interview questions

I completed five interview rounds covering coding, machine learning depth and breadth, and low-level C++/systems topics. The coding rounds focused on algorithms/data structures; the ML rounds explored end-to-end modeling, experimentation, and theory; and the C++ round emphasized memory management, performance, and concurrency.

The step response of an RC circuit refers to how the circuit reacts when a sudden change in voltage is applied, such as a step input (e.g., switching from 0V to V₀ at t = 0). The response can be analyzed for both charging and discharging scenarios.