Question: Your computer sends a DNS server message to your local DNS server. After an unusually long time, your computer receives a DNS response message that

Your computer sends a DNS server message to your local DNS server. After an unusually long time, your computer receives a DNS response message that the hostname in your request message does not exist. This is a host you use every day. List problems that may have happened. (Draw the picture.) Which is the most likely to have caused the long delay and failure to find your host's IP address? How would you test it?

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