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GCIH · Question #130

Adam works as a Network administrator for Umbrella Inc. He noticed that an ICMP ECHO requests is coming from some suspected outside sources. Adam suspects that some malicious hacker is trying to perfo

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Reconnaissance, Scanning, and Enumeration

Question

Adam works as a Network administrator for Umbrella Inc. He noticed that an ICMP ECHO requests is coming from some suspected outside sources. Adam suspects that some malicious hacker is trying to perform ping sweep attack on the network of the company. To stop this malicious activity, Adam blocks the ICMP ECHO request from any outside sources. What will be the effect of the action taken by Adam?

Options

  • ANetwork turns completely immune from the ping sweep attacks.
  • BNetwork is still vulnerable to ping sweep attack.
  • CNetwork is protected from the ping sweep attack until the next reboot of the server.
  • DNetwork is now vulnerable to Ping of death attack.

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Topics

#ping sweep#ICMP filtering#network reconnaissance#countermeasure effectiveness
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