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A system Jarvis requested for a specific site "abc.co", in return to this request it got the error as "LOOKUP FAILED". Now consider the following services:
1) SMTP
2) TCP
3) UDP
4) DNS
Which of the above service(s) are failed when we get the error as "LOOKUP FAILED"
  • a)
    1 and 2 failed but not simultaneously
  • b)
    1 and 2 failed simultaneously
  • c)
    and 4 failed
  • d)
    2 and 4 failed
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A system Jarvis requested for a specific site "abc.co", in return to ...
Lookup failed means DNS has failed. The conversion from website name to its IP address can't be done.
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A system Jarvis requested for a specific site "abc.co", in return to this request it got the error as "LOOKUP FAILED". Now consider the following services:1) SMTP2) TCP3) UDP4) DNSWhich of the above service(s) are failed when we get the error as "LOOKUP FAILED"a)1 and 2 failed but not simultaneouslyb)1 and 2 failed simultaneouslyc)and 4 failedd)2 and 4 failedCorrect answer is option 'D'. Can you explain this answer?
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