1. Briefly describe a scenario that causes a data hazard in a pipeline?

2. Briefly describe a scenario that causes a control hazard in a pipeline?

3. Briefly describe a technique that can solve a data hazard?

4. Briefly describe what hardware/inputs/outputs would need to be added to implement the following instruction: xor R3,$35. Exclusive-or the value $35 with the contents of register 3 and store the result in register 3.