1 Synchronization Problems: Select all of the following statements that are true. In the unbounded buffer version of the producer-consumer problem, the producer never waits and can produce new data items without regard to the shared buffer size. In the second readers-writers problem discussed in class, the 'queue' semaphore provides a queueing of read and write processes by staggering them. In the first readers-writers problem discussed in class, any write process waiting to enter the critical section may be starved if new read processes are added constantly to the semaphore's queue. In the bounded buffer version of the producer-consumer problem discussed in class, If the shared buffer is full, the consumer process must wait until new data is generated. The naïve semaphore-based solution to the Dining-Philosophers problem discussed in class may lead to deadlocks. O DELL W

1 Synchronization Problems: Select all of the following statements that are true. In the unbounded buffer version of the producer-consumer problem, the producer never waits and can produce new data items without regard to the shared buffer size. In the second readers-writers problem discussed in class, the 'queue' semaphore provides a queueing of read and write processes by staggering them. In the first readers-writers problem discussed in class, any write process waiting to enter the critical section may be starved if new read processes are added constantly to the semaphore's queue. In the bounded buffer version of the producer-consumer problem discussed in class, If the shared buffer is full, the consumer process must wait until new data is generated. The naïve semaphore-based solution to the Dining-Philosophers problem discussed in class may lead to deadlocks. O DELL W

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Monitors: Select all of the following statements that are true. Only one process can be active in the monitor at a time. The Urgent Queue stores suspended processes that are waiting on a specific condition. When the "Signal and Continue"-approach (Mesa semantics) is applied, the signaling process P is placed on the Urgent Queue. A process enters the monitor by calling one of its monitor procedures. The Mesa semantics leads to a more efficient implementation and reduces the number of context switches. Monitors and semaphores are equally powerful from a theoretical point of view.
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