ECCouncil Ethical Hacking and Countermeasures V8 EC0-350 Question # 190 Topic 20 Discussion

ECCouncil Ethical Hacking and Countermeasures V8 EC0-350 Question # 190 Topic 20 Discussion

EC0-350 Exam Topic 20 Question 190 Discussion:
Question #: 190
Topic #: 20

You are conducting a port scan on a subnet that has ICMP blocked. You have discovered 23 live systems and after scanning each of them you notice that they all show port 21 in closed state.

What should be the next logical step that should be performed?


A.

Connect to open ports to discover applications.


B.

Perform a ping sweep to identify any additional systems that might be up.


C.

Perform a SYN scan on port 21 to identify any additional systems that might be up.


D.

Rescan every computer to verify the results.


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