1. Most operating systems for parallel machines (i) allocate memory in a local memory area when a process requests memory, and (ii) avoid moving a process from one core to another. Why are these...

1. Most operating systems for parallel machines (i) allocate memory in a local memory area when a process requests memory, and (ii) avoid moving a process from one core to another. Why are these optimizations important with a NUMA architecture?

2. What is the key distinction between homogeneous and federated distributed database systems?