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Why would a host contact a DNS server? If a local DNS server does not know...

Why would a host contact a DNS server? If a local DNS server does not know the IP address for a host name, what will it do? What kind of organization must maintain one or more DNS servers? Why? How does your organization protect itself from DNS cache poisoning? Do you think this is sufficient? Why or why not?

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venereology answered 11 months ago
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