5.2.3 Practice Questions

Question 1

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?

answer

Wardialing

Wardriving

Banner grabbing

Firewalking

Answer 1

Banner grabbing

Question 2

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?

answer

Netcraft

Shodan

Telnet

P0f

Answer 2

P0f

Question 3

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?

answer

nmap -sT –script=banner ip_address

nmap -sX –script=banner ip_address

nmap -sN –script=banner ip_address

nmap -sV –script=banner ip_address

Answer 3

nmap -sV –script=banner ip_address

Question 4

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

answer

nmap

Telnet

P0f

Netcraft

Answer 4

Netcraft

Question 5

Which of the following best describes telnet?

answer

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

An online tool that is used to obtain server and web server information.

A tool that connects to an open TCP port and returns anything sent in a five-second period.

A Linux tool that analyzes network traffic and returns information about operating systems.