Which of the following terms refers to the access of a wireless Internet connection by bringing one’s
own computer within the range of another’s wireless connection, and using that service without the
subscriber’s explicit permission or knowledge?

A.
Samhain

B.
Snooping

C.
Piggybacking

D.
Vampire tap

Explanation:
Piggybacking is a term used to refer to access of a wireless internet connection by bringing one’s
own computer within the range of another’s wireless connection, and using that service without the
subscriber’s explicit permission or knowledge. It is a legally and ethically controversial practice, with
laws that vary in jurisdictions around the world.

Answer A is incorrect. Samhain is an open source multi-platform application that is used for
checking the integrity of centralized files and for detecting host-based intrusion on POSIX systems
(Unix, Linux, Cygwin/Windows). Although it can be used to monitor a single host, it is designed to
monitor multiple hosts with potentially different operating systems from a central location. Samhain
can therefore be configured as a client/server application to monitor many hosts on a network from
a single central location.

Answer D is incorrect. A vampire tap is a cable connection that is made with a unit that clamps onto
and bites into the cable. Vampire taps are often used to attach thick Ethernet transceivers to the
coaxial cable. Without a vampire tap, the cable has to be cut and connectors have to be attached to
both ends.

Answer B is incorrect. Snooping is an activity of observing the content that appears on a computer
monitor or watching what a user is typing. Snooping also occurs by using software programs to
remotely monitor activity on a computer or network device. Hackers or attackers use snooping
techniques and equipment such as keyloggers to monitor keystrokes, capture passwords and login
information, and to intercept e-mail and other private communications. Sometimes, organizations
also snoop their employees legitimately to monitor their use of organizations’ computers and track
Internet usage.