Solution:
The process of transaction can guarantee the reliability of business applications. Locking resources is widely used in distributed transaction management (e.g; two phase commit, 2PC) to keep the system consistent. The locking mechanism, however, potentially results in various deadlocks. In service oriented architecture, the deadlock problem becomes even worse because multiple transactions try to lock shared resources in the unexpectable way due to the more randomicity of transaction requests, which has not been solved by existing research results. In this paper, we investigate how to prevent local deadlocks, caused by the resource competition among multiple sub-transactions of a gl obal transaction, and global deadlocks from the competition among different global transactions. We propose a replication based approach to avoid the local deadlocks, and a timestamp based approach to significantly mitigate the global deadlocks. A general algorithm is designed for both local and global deadlock prevention. The experimental results demonstrate the effectiveness and efficiency of our deadlock prevention approach. Further, it is also proved that our approach provides higher system performance than traditional resource allocation schemes.
This is the required answer.
Answer:
D. a studio monitor
Explanation:
A studio monitor is an electrical equipment that is used to enhance the quality of sound or music. It work like a speaker that can be used professionals to record audio songs, to make films and some other applications with good quality. It is usually used in studios where producer must ensures that the quality of music. As in music industry the quality of music depends on the quality of instrument used for the purpose of recording.
<em>This is the reason that, Jimmy and his friends should choose a Studio Monitor to achieve the most accurate sound quality.</em>
Answer:
Midi Synthesizer, Mic,Boom Mic, Laptop
Explanation:
At the end of the day a keyboard and a pc is all you need as the keyboard alone can cover nearly any instrument.
