pls ans asap...I will thumb up

QUESTION 37 The starvation can happen if a low priority job never gets a chance to use CPU. The solution is aging in which priorities are reassigned to all tasks intermittently. with time a low priority task becomes higher priority. with time a high priority task becomes low priority. priorities lose their significance later. QUESTION 39 The Linux command to copy file1 to file2, which is 'cp file1 file2' is an example of a system call True False QUESTION 40 One difference between multi-tasking using fork() versus using threads is that inter-process communication between threads is a lot faster than between forked children because context switching is faster, inter-processor communications between forked children is not needed. inter-process communication between forked children is a lot faster than between threads because context switching is faster QUESTION 41 One difference between multi-tasking using fork() versus using threads is that if a parent process in multithreading terminates, all threads terminate automatically. if a parent process in fork() terminates, all children terminate automatically