Exam 412-79v8 topic 1 question 63 discussion

Actual exam question from ECCouncil's 412-79v8

Question #: 63
Topic #: 1

A penetration tester performs OS fingerprinting on the target server to identify the operating system used on the target server with the help of ICMP packets.

While performing ICMP scanning using Nmap tool, message received/type displays "3 – Destination Unreachable[5]" and code 3.
Which of the following is an appropriate description of this response?

A. Destination port unreachable
B. Destination host unavailable
C. Destination host unreachable
D. Destination protocol unreachable A

Show Suggested Answer

Suggested Answer: Explanation 🗳️

by jagadeesh666 at Oct. 21, 2020, 6:26 a.m.

Comments

Submit Cancel

jagadeesh666

4 years, 9 months ago

Destination port unreachable TYPE-3 (Destination Unreachable) codes 0 Net Unreachable 1 Host Unreachable 2 Protocol Unreachable 3 Port Unreachable 4 Fragmentation Needed and Don’t Fragment was Set 5 Source Route Failed 6 Destination Network Unknown 7 Destination Host Unknown 8 Source Host Isolated 9 Communication with Destination Network is Administratively Prohibited 10 Communication with Destination Host is Administratively Prohibited 11 Destination Network Unreachable for Type of Service 12 Destination Host Unreachable for Type of Service 13 Communication Administratively Prohibited [RFC1812] 14 Host Precedence Violation [RFC1812] 15 Precedence cutoff in effect [RFC1812]

upvoted 2 times

...