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