False. Those are not social networking sites, and they don't develop contracts.
Answer:
d. Ensure file caching and flushing are enabled for all disk drives.
Explanation:
When the disk reading and writing is delayed and the server performance is also slow after taking over management of a server.Previously the server has several server components.So to increase the performance we should ensure caching of the file and make sure that the flushing is enabled for all disk drives.Hence the answer to this question is option d.
The answer to your question, is true
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It stands for Electronic Business, a typical example of this is a online store.