Can a class implement multiple interfaces?

Short answer: Yes, a class can implement multiple interfaces, solving multiple inheritance issues. class FlyingCar : IDriveable, IFlyable

Example code

{
public void Drive() => Console.WriteLine("Driving");
public void Fly() => Console.WriteLine("Flying");
}

Real-world example (ShopNest)

Checkout calls IPaymentGateway.Charge(). Razorpay and Stripe adapters implement the same interface, so ShopNest can switch gateways without rewriting the order service.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.