Answer:
1. B 2. D
Explanation:
If computers share processing power, it is just a larger computer.
a.on , off
In most computer processors, electron movement is controlled by tiny switches that turn this flow of electricity on and off...zero represents off and one represents on
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. System Analysis
Explanation:
System analysis can be defined as the process of analysing a problem in order to the know the cause thereby finding a way to resolve it or finding a solution to it.
System analysis enables us to easily study procedure or process thereby identifying what the objective of the procedures is which will in turn help to achieve what we needed to achieve.
System analysis is important because it enables easier identification of a problem which make us to find the best way to solve the problem since it is a problem solving technique which ensures that all problem are been resolved accurately and efficiently
Answer:
C. A cold site is a leased facility that contains only electrical and communications wiring, air conditioning, plumbing, and raised flooring. No communications equipment, networking hardware, or computers are installed at a cold site until it is necessary to bring the site to full operation.
Explanation:
