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Computer System Structure - Q1.Users are having trouble...

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Q1.Users are having trouble connecting to Internet hosts. You suspect there is a problem with the Domain Name System (DNS) server and want to verify this. What troubleshooting step can you take to determine whether the DNS server is resolving Internet host names? Some of the potential solutions are given below: Please select the appropriate solution and justify your answer. [25 marks] a. Issue the Winipcfg command from a local workstation. b. Try to connect to an Internet host using the Internet Protocol (IP) address instead of the IP host name c. Ping the DNS server to see if it is functioning. d. Use the traceroute command to test the functionality of the DNS server Q2. Describe the basic protocols and modes of IPSec operation and their fundamental difference. [25 marks] Q3. Identify two potential problems with using packet switching on a network. Explain your answer. [25 marks] Q4. You are the administrator of a small network. You recently installed a network interface adapter in one of the computers. The user of this computer says he can’t access the network now. You need to isolate the problem.
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