System Architecture and Reliability
Which is a characteristic of distributed processing compared with centralized processing?
- AOverall operations management and security management can be done in one place, which makes management easy
- BCommunication between computers becomes unnecessary, so the system is not affected by network failures
- CProcessing is divided among several computers, so the effect of one computer's failure is easier to localize and capacity is easier to increase by adding computers, but operations management and keeping data consistent become more complex
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Answer: C. Processing is divided among several computers, so the effect of one computer's failure is easier to localize and capacity is easier to increase by adding computers, but operations management and keeping data consistent become more complex
Distributed processing divides the work among several computers. It has the advantages that the effect of one computer's failure is easier to keep partial and that computers are easy to add as the load grows. On the other hand, communication between the computers becomes necessary, and managing the equipment, implementing security measures and keeping data consistent become more complex. Easy management in one place is an advantage of centralized processing, in which a single computer does the work.
- A. This is an advantage of centralized processing. In distributed processing the equipment to manage is spread out, so management is more complex.
- B. Distributed processing needs communication between computers and is also affected by network failures.
- C. Correct. Localized failures and easy expansion are the advantages, and complex management is the drawback.
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