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QUESTION

(a) Describe the role of DNS root servers in the Internet network.

(b) What do you understand by the handover concept in a mobile network?

(c) List five methods which can be used to secure a LAN?

(d) An end user has reported that he is not getting connection to the main server. Assuming that the computer of the user and the server are connected to a switch, write down a procedure for troubleshooting the above problem using

(i) A command in the operating system.

(ii) Physical inspection.

Computer Network & Security, Computer Science

  • Category:- Computer Network & Security
  • Reference No.:- M9584981

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