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2707A1 Discussion Sheet

2707A1 Discussion Sheet - 2707A1 Discussion Sheet SHORT...

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2707A1 Discussion Sheet SHORT ANSWER 1. ANS: Functions of a network operating system: Centrally manage network resources, such as programs, data, and devices (for example, printers) Secure access to a network Allow remote users to connect to a network Allow users to connect to other networks (for example, the Internet) Back up data and make sure it’s always available Allow for simple additions of clients and resources Monitor the status and functionality of network elements Distribute programs and software updates to clients Ensure efficient use of a server’s capabilities Provide fault tolerance in case of a hardware or software problem REF: 416 2. ANS: The issues include: How many clients will connect to the server? What kinds of applications will run on the server? How much storage space will each user need? How much downtime, if any, is acceptable? What can the organization afford? REF: 418 3. ANS: Middleware prevents the need for a shared application to function differently for each different type of client. It stands in the middle of the client and the server and performs some of the tasks that an application in a simple client/server relationship would otherwise perform. Typically, middleware runs as a separate service - and often on a separate physical server - from the NOS. To interact with the middleware, a client issues a request to the middleware. Middleware reformats the request in such a way that the application on the server can interpret it. When the application responds, middleware translates the response into the client’s preferred
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