Bus4-111 Ch4-6
What 802 Working Group creates Ethernet standards?
802.3
A specific encryption method is called a
cipher
What type of switch connects switches to other switches?
core switches
Most wireless systems operate in the _______ range
GHz
Frequency is measured in the terms of
Hertz
What organization (most specifically) creates Ethernet Standards?
IEEE
Who are the most dangerous types of employees?
IT security employees
The general term for evil software is ___________
malware
For sensitive assets, reusable passwords _________
should not be used
Wireless network standards operate at _______
the Data Link Layer
Wi-Fi Standards come from the ________ Working Group.
802.11
A local area network operates ___________
on customer premises
The frequency spectrum extends
to infinity
Compared to wired transmission, propagation problems in radio transmission are ________.
worse
Vulnerability-based attacks that occur before a patch is available are called ________ attacks
zero-day
In binary signaling there is (are) ________ state(s).
2
What type of copper wiring is widely used in Ethernet?
4-pair UTP
If another device is near, bus in an unknown direction, it is better to use _________
an omnidirectional antenna
Requiring someone prove his or her identity is _________
authentication
Using bodily measurements for authentication is _________
biometrics
The most serious problem with wireless transmission is WLANs is ______
multi-path interference
Wireless access points typically link wireless clients to ________
servers on the wired network
What kinds of attack is most likely to succeed against a system with no technological vulnerabilities?
social engineering
An encryption, what must be kept secret?
the key
The target attackers probably first broke into Target using the credentials of a(n)
employee in a firm outside Target
Optical fiber cords use two strands ________.
for full-duplex transmission
Ethernet messages are ___________
frames
Wireless radio transmission speed is usually measured in terms of ________
frequency
Ethernet standards are specified at the ________ layer.
physical data link
Ethernet forwarding devices are __________
switches
