Which of the following statements regarding the internal queue for semaphores is (are) correct? Select all that apply. (a) Without the FIFO queue attached to each binary semaphore, process starvation can happen if no other mechanism to manage the processes waiting (blocked) at a semaphore. (b) Without the FIFO queue attached to each binary semaphore, race conditions can not be prevented. (c) Since each counting semaphore allows multiple processes to proceed beyond wait for a counting semaphore, the FIFO queue is not necessary for each counting semaphore. (d) Inserting a blocked process to (for wait) and removing a leaving process from (for signal) the FIFO queue of a semaphore must be a part of the atomic operation of wait and signal operations. (e) If the FIFO queue attached to each semaphore is in a finite size, the size of the FIFO queue limits the number of processes that can use a semaphore.

Which of the following statements regarding the internal queue for semaphores is (are) correct? Select all that apply. (a) Without the FIFO queue attached to each binary semaphore, process starvation can happen if no other mechanism to manage the processes waiting (blocked) at a semaphore. (b) Without the FIFO queue attached to each binary semaphore, race conditions can not be prevented. (c) Since each counting semaphore allows multiple processes to proceed beyond wait for a counting semaphore, the FIFO queue is not necessary for each counting semaphore. (d) Inserting a blocked process to (for wait) and removing a leaving process from (for signal) the FIFO queue of a semaphore must be a part of the atomic operation of wait and signal operations. (e) If the FIFO queue attached to each semaphore is in a finite size, the size of the FIFO queue limits the number of processes that can use a semaphore.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Which of the following statements regarding the internal queue for semaphores is (are)
correct? Select all that apply.
(a) Without the FIFO queue attached to each binary semaphore, process starvation can
happen if no other mechanism to manage the processes waiting (blocked) at a
semaphore.
(b) Without the FIFO queue attached to each binary semaphore, race conditions can not be
prevented.
(c) Since each counting semaphore allows multiple processes to proceed beyond wait for a
counting semaphore, the FIFO queue is not necessary for each counting semaphore.
(d) Inserting a blocked process to (for wait) and removing a leaving process from (for
signal) the FIFO queue of a semaphore must be a part of the atomic operation of wait
and signal operations.
(e) If the FIFO queue attached to each semaphore is in a finite size, the size of the FIFO
queue limits the number of processes that can use a semaphore.

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