TCP/IP stack fingerprinting is the passive collection of configuration attributes from a remote device during standard layer 4 network communications. The combination of parameters may then be used…

Question

Options

• Anmap -sS
• Bnmap -sU -p
• Cnmap -O -p
• Dnmap -sT Explanation:

• A
  16% (4)
• B
  8% (2)
• C
  72% (18)
• D
  4% (1)

Explanation

The nmap -O -p switch can be used to perform TCP/IP stack fingerprinting. Nmap is a free open- source utility for network exploration and security auditing. It is used to discover computers and services on a computer network, thus creating a "map" of the network. Just like many simple port scanners, Nmap is capable of discovering passive services. In addition, Nmap may be able to determine various details about the remote computers. These include operating system, device type, uptime, software product used to run a service, exact version number of that product, presence of some firewall techniques and, on a local area network, even vendor of the remote network card. Nmap runs on Linux, Microsoft Windows etc. Answer: B is incorrect. The nmap -sU -p switch can be used to perform UDP port scanning. Answer: A is incorrect. The nmap -sS switch is used to perform a TCP half scan. TCP SYN scanning is also known as half-open scanning because in this a full TCP connection is never Answer: D is incorrect. The nmap -sT switch is used to perform a TCP full scan.

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