What does a type 3 code 13 representchoose two a echo

Question: 26
What does a type 3 code 13 represent?(Choose two.
A. Echo request
B. Destination unreachable
C. Network unreachable
D. Administratively prohibited

Exam Name: Certified Ethical Hacker
Exam Type: EC-Council
Exam Code: 312-50 Total Questions: 255
Page 9 of 77
E. Port unreachable
F. Time exceeded
Answer: B, D
Explanation:
Type 3 code 13 is destination unreachable administratively prohibited. This type of message is
typically returned from a device blocsheets a port.
Question: 27
Destination unreachable administratively prohibited messages can inform the hacker to what?
Question: 28
Which of the following Nmap commands would be used to perform a stack fingerprinting?
Question: 29
Name two software tools used for OS guessing.(Choose two.

Exam Name: Certified Ethical Hacker
Exam Type: EC-Council
Exam Code: 312-50 Total Questions: 255
Page 10 of 77
Explanation:
Nmap and Queso are the two best-known OS guessing programs. OS guessing software has the
ability to look at peculiarities in the way that each vendor implements the RFC's. These
differences are compared with its database of known OS fingerprints. Then a best guess of the
OS is provided to the user.