Ethical Hacking 5.2.3 Practice Questions

Nmap can be used for banner grabbing. Nmap connects to an open TCP port and returns anything sent in a five-second period. Which of the following is the proper nmap command?

nmap -sV --script=banner ip_address

Information transmitted by the remote host can be captured to expose the application type, application version, and even operating system type and version. Which of the following is a technique hackers use to obtain information about the services running on a target system?

Banner grabbing

Which of the following is an online tool that is used to obtain server and web server information?

Netcraft

Joe wants to use a stealthy Linux tool that analyzes network traffic and returns information about operating systems. Which of the following banner grabbing tools is he most likely to use?

P0f

Which of the following best describes telnet?

The tool of choice for banner grabbing that operates on port 23.