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SNHU - IT-201 Computer Platform Technologies
Written by: Chris Bell - September, 2012

File Management in Client Server Architecture



1. What are the four layers of the file management system?

The four layers of the file management system are the command layer, file control, storage input / output control and secondary storage devices.

2. How does a file management system utilize access controls?

The FMS utilizes access controls by making the user authenticate their identity by entering a name and password. Aside from the system administrator, the user will grant or deny access controls to anyone they choose.

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3. Why is fault tolerance important? What are the features of each RAID level?

Fault tolerance is important because it protects files against CPU hardware failure. So when hardware fails the files remain safe. The RAID levels are 0 data stripping without redundancy, 1 Mirroring, 2 data bit stripping, 3 data byte stripping, 4 data block stripping on separate disks, 5 data block stripping on multiple disks, 6 data block stripping with two sets of parity check data and 10 data stripping combined with mirroring.

4. What are the major features of a client/server architecture? How does it differ from a typical home user's personal computer?

A server is a physical computer that holds software for each of the clients PCs to share, access and use such as a company ERP system. A personal computer only needs information on its own without the need to share with other PCs.

5. What is directory services, and how can it help end users?

Directory services are the middleware that accepts requests and updates. It helps end users because the information that is updated from computer-A will immediately update on computer-B of the network.


References:


Anthony Sequira (February, 2011). Defining Terms: What is a Directory Service?. Retrieved from:
http://www.dummies.com/how-to/content/defining-terms-what-is-a-directory-service.html

www.wisegeek.com (2011). What is Client Server Architecture?. Retrieved from:
http://www.wisegeek.com/what-is-client-server-architecture.htm