The principal disadvantage of the _________ approach is that the transfer of control from one thread to another within the same process requires a mode switch to the kernel.Select one:A.ULTB.KLTC.VAXD.LWP

In ----------------------   thread switching does not require kernel mode privileges (no mode switches) but in ---------------------    thread switching  require kernel mode privileges ( mode switches)Select one:a. ULT,ULTb. KLT,ULTc. ULT,KLTd. KLT,KLT

What is the thread? What are the difference between user-level threads and kernel-supported threads? Under what circumstances is one type “better” than the other?

In most operating systems, communication between independent processes requires the intervention of the kernel to provide protection and the mechanisms needed for communication. However, because threads within the same process share memory and files, they can communicate with each other without invoking the kernel.Group of answer choicesTrueFalse

Multiple threads on a single processor need to be context switched before another thread takes over.Question 2Answera.Trueb.Fals

Are you creating user-level or kernel-level threads? How do you know?2. In what ways is this program easier to implement using threads, rather than forking two child processes?3. In what ways is this program more difficult to implement by using threads rather than forking two child processes?4. What could occur if you added the two threads' results without joining with them first?5. Why did you not need to add mutexes or other locking construct to your program, despite it being multithreaded?