При необходимости переведу:) Спасибо!
There are 13 root servers that control the overall DNS lookup process for the entire
Internet. If these 13 servers were to become unavailable, much of the Internet would be
inaccessible. Resources would have to be accessed via IP address, not by host name.
However, hackers once managed to attack 11 of the 13 root servers, resulting in
degraded performance. Surprisingly, Internet users did not notice any difference. Can
you explain in details why?
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Suppose your network utilises a WINS server. Also, assume you are the network
administrator and were called in to troubleshoot a problem in which the WINS server
itself could not be accessed using NetBIOS name resolution. Assume all other machines
are working and communicating properly with the WINS server in order to resolve
NetBIOS names. Describe what you view to be the most likely cause of this network’s
problem.