An attacker tries to do

banner grabbing on a remote web server and executes the following command.

$ nmap -sV host.domain.com -p 80

He gets the following output.

Starting Nmap 6.47 (

g ) at 2014-12-08 19:10 EST

Nmap scan report fo

r host.domain.com (108.61.158.211)

Host is up (0.032s latency).

PORT

STATE

SERVICE

VERSION

80/tcp

open

http

Apache httpd

Service detection performed. Please report any incorrect results at

.

Nmap done: 1 IP address (1 host up) scanned in 6.42 seconds

What did the hacker accomplish?

A. nmap cant retrieve the version number of any running remote service.

B. The hacker successfully completed the banner grabbing.

C. The hacker shouldve used

nmap -O host.domain.com.

D. The hacker failed to do banner grabbing as he didnt get the version of the Apache web server.