Quiz 1 - Processes & Threads
.
- 1.The difference between a program and a process is that a program is an active entity while a process is a passive entity.
- A.
True
- B.
False
- 2.The single benefit of a thread pool is to control the number of threads.
- A.
True
- B.
False
- 3.When a child process is created, which of the following is a possibility in terms of the execution or address space of the child process?
- A.
The child process has a new program loaded into it
- B.
The child process runs concurrently with the parent.
- C.
The child is a duplicate of the parent.
- D.
All of the above
- 4.A process control block ____.
- A.
Is an example of a process queue
- B.
Determines which process is to be executed next
- C.
Includes information on the process's state
- D.
Stores the address of the next instruction to be processed by a different process
- 5.A ____ provides an API for creating and managing threads
- A.
Set of system calls
- B.
Thread library
- C.
Multithreading model
- D.
Multicore system
- 6.A _____ uses an existing thread — rather than creating a new one — to complete a task.
- A.
Asynchronous procedure call
- B.
Lightweight process
- C.
Thread pool
- D.
Scheduler activation
- 7.A thread is composed of a thread ID, program counter, register set, and heap.
- A.
True
- B.
False
- 8.The ____ multithreading model multiplexes many user-level threads to a smaller or equal number of kernel threads.
- A.
One-to-one model
- B.
Many-to-many model
- C.
Many-to-one model
- D.
Many-to-some model
- 9.It is possible to have concurrency without parallelism.
- A.
True
- B.
False
- 10.Virtually all contemporary operating systems support kernel threads.
- A.
True
- B.
False
- 11.A _________________ saves the state of the currently running process and restores the state of the next process to run.
- A.
None of the above
- B.
Save-and-restore
- C.
Context switch
- D.
State switch
- 12.A process that has terminated, but whose parent has not yet called wait(), is known as a ________ process.
- A.
Terminated
- B.
Orphan
- C.
Zombie
- D.
Init
- 13.For a single-processor system, there will never be more than one process in the Running state.
- A.
True
- B.
False
Questions: 10 | Attempts: 312 | Last updated: Jul 30, 2011
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