1-Fine-grained multithreading switches between threads __________ .

1-Fine-grained multithreading switches between threads __________ .

A-after significant events

B-as instructed by the user

C-at random

D-on each instruction

2-Coarse-grained multithreading switches between threads __________ . 

A-after significant events

B-as instructed by the user

C-at random

D-on each instruction

3-Processors in a shared memory multiprocessor __________ .

A-access individual memory only

B-are provided access to a single shared memory

C-communicate via message passing

D-have limited access to shared variables