Which of the following refers to a security access control methodology whereby the 48-bit address is
assigned to each network card which is used to determine access to the network?
A.
Snooping
B.
Spoofing
C.
Encapsulation
D.
MAC filtering
Explanation:
In computer networking, MAC filtering (or EUI filtering, or layer 2 address filtering) refers to a
security access control methodology whereby the 48-bit address is assigned to each network card
which is used to determine access to the network. MAC addresses are uniquely assigned to each
card, so using MAC filtering on a network permits and denies network access to specific devices
through the use of blacklists and whitelists.
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.
an authentic source by forging the IP address, email address, caller ID, etc. In IP spoofing, a hacker
modifies packet headers by using someone else’s IP address to hide his identity. However, spoofing
cannot be used while surfing the Internet, chatting on-line, etc. because forging the source IP
address causes the responses to be misdirected.
added around some data. A TCP/IP host sends data by performing a process in which four layers
encapsulate data (adds headers and trailers) before physically transmitting it.
d