Question: Operating Systems Questions please help 1. What are the advantages of using dedicated hardware devices forrouters and gateways? What are the disadvantages of using these

Operating Systems Questions please help

1. What are the advantages of using dedicated hardware devices forrouters and gateways? What are the disadvantages of using these devices compared with using general-purpose computers?

2. Discuss the advantages and disadvantages of caching name translations for computers located in remote domains.

3. Is it always crucial to know that the message you have sent has arrived at its destination safely? If your answer is yes, explain why. If your answer is no, give appropriate examples.

4. The original HTTP protocol used TCP/IP as the underlying network protocol. For each page, graphic, or applet, a separate TCP session was constructed, used, and torn down. Because of the overhead of building and destroying TCP/IP connections, performance problems resulted from this implementation method. Would using UDP rather than TCP be a good alternative? What other changes could you make to improve HTTP performance?

5. In what ways is using a nameserver better than using static host tables? What problems or complications are associated with name servers? What methods could you use to decrease the amount of traffic nameservers generate to satisfy translation requests?

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