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EC-Council

EC0-350 · Question #470

Doug is conducting a port scan of a target network. He knows that his client target network has a web server and that there is a mail server also which is up and running. Doug has been sweeping the…

The correct answer is A. UDP is filtered by a gateway B. The packet TTL value is too low and cannot reach the target C. The host might be down F. ICMP is filtered by a gateway. See the full explanation below for the reasoning.

Question

Doug is conducting a port scan of a target network. He knows that his client target network has a web server and that there is a mail server also which is up and running. Doug has been sweeping the network but has not been able to elicit any response from the remote target. Which of the following could be the most likely cause behind this lack of response? Select 4.

Options

  • AUDP is filtered by a gateway
  • BThe packet TTL value is too low and cannot reach the target
  • CThe host might be down
  • DThe destination network might be down
  • EThe TCP windows size does not match
  • FICMP is filtered by a gateway

How the community answered

(42 responses)
  • A
    76% (32)
  • D
    17% (7)
  • E
    7% (3)

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