Muh Six Snix Flix Chapter 7
What is the strongest security protocol for 802.11 today?
802.11i
Which offers stronger security?
802.11i
If a firm has many access points, it should use ________ initial authentication mode in 802.11i.
802.1X
In what initial authentication mode of 802.11i is a central authentication server used?
802.1X
A change in power from 2 mW to 17 mW corresponds to approximately ________ decibels.
9
Which of the following secures communication between the wireless computer and the server it wishes to use against evil twin attacks?
VPNs
The Wi-Fi Alliance calls 802.11i ________.
WPA2
A security might use SNMP Get commands to ________.
collect information to look for a rogue access point
Bluetooth Low Energy ________.
conserves battery power
802.11i 802.1X initial authentication mode was created for ________.
corporations with multiple access points
In VPNs designed to frustrate evil twin attacks, the shared secret between the client and the server is ________.
not transmitted
Bluetooth uses ________ operation.
one-to-one
If a master has multiple slaves, Bluetooth will use ________ operation.
one-to-one
Wi-Fi direct ________ uses access points.
never
A change in power from 100 W to 1 W corresponds to approximately ________ decibels.
-20
A change in power from 2 mW to 205 mW corresponds to approximately ________ decibels.
20
In 802.11i PSK mode, the pass phrase should be at least ________ characters long.
20
Compared to an omnidirectional antenna, a dish antenna quadruples radiated power. How much is this change in decibels?
6 dB
Which is the correct formula for decibels?
A) 10 * P2/P1 B) 10 * (P2/P1)2 C) Log10(P2/P1) D) none of the above Answer: D
An 8/1 increase in power corresponds to approximately ________ decibels.
A) 3 B) 6 C) 20 D) none of the above Answer: D
Which initial authentication mode is used for message-by-message encryption, authentication, and message integrity?
A) 802.1X B) PSK C) both A and B D) neither A nor B Answer: D
The ________ standard dominates IoT transmission today.
A) Bluetooth B) Zigbee C) Wi-Fi direct D) none of the above Answer: D
A lamp in a Zigbee network would probably be a ________.
A) client B) server C) router D) none of the above Answer: D
If a drive-by hacker succeeds in connecting to an internal access point, the network traffic is ________.
A) still protected by a firewall B) still protected by encryption C) both A and B D) neither A nor B Answer: D
Bluetooth LE ________.
A) uses about 0.1 to 0.5 watts B) assumes that transmissions will be infrequent C) has terse connection openings D) all of the above Answer: D
Passive RFID chips get the power needed to transmit from ________.
A) wall power B) coin batteries C) the electricity that always flows through the air in small quantities D) none of the above Answer: D
In 802.1x initial authentication mode, the VERIFIER is the ________.
A) wireless client B) wireless access point C) authentication server D) none of the above Answer: D
A Bluetooth profile for sending a command from a wireless light switch to a lamp is probably a ________ profile.
Bluetooth LE
802.11i provides ________.
Both confidentiality and message integrity
802.11i can defeat rogue access points.
FALSE
Employees who set up rogue access points usually have malicious motives.
FALSE
Nearly all public Wi-Fi hotspots encrypt your transmissions.
FALSE
You can test whether an evil twin attack has taken place against your wireless client.
FALSE
Communication after authentication is protected most strongly if the ________ initial authentication is used.
It does not matter which initial authentication mode is used.
Bluetooth ________ is likely to be used most of the time in IoT transmission.
LE
A group of devices on a desk that communicate wirelessly is called a ________.
PAN
In 802.11i ________, hosts must know a shared initial key.
PSK initial authentication mode
________ can operate in the 2.4 service band.
Zigbee
In Zigbee, ad hoc networking's mesh is operated by ________.
Zigbee Routers
Bluetooth LE normally uses ________ for power.
a coin battery
When two devices communicate using NFC, how close must they be?
a few inches
An evil twin access point is usually ________.
a laptop computer
Which of the following is true of Bluetooth?
a master may have multiple slaves and a slave may have multiple masters
In 802.11i, protection is provided between the client and the ________.
access point
Zigbee is designed to be used in a(n) ________ network.
ad hoc
In Bluetooth LE, ________ notify other Bluetooth devices that it is available.
advertisements
You should use a VPN ________.
always
A rogue access point is usually created by ________.
an employee
Which of the following is usually set up by a hacker outside the building?
an evil twin access point
In Bluetooth LE, ________ provide information.
beacons
Classic Bluetooth provides transmission speeds of ________.
both 3 Mbps and 24 Mbps
What initial authentication mode does 802.11i use?
both 802.1X and PSK
Which of the following is an ad hoc networking protocol?
both Zigbee and Z-Wave
Site surveys should be done ________.
both after the initial provisional placement of access points and periodically afterwards
Which of the following is a risk in 802.11i PSK mode?
both unauthorized sharing of the pre-shared key and a weak passphrase me be selected.
A security might use SNMP Set commands to ________.
change an access point's power
After two wireless clients authenticate themselves via PSK to an access point, they will use ________ to communicate with the access point.
different pairwise session keys
If Wi-Fi supported the basic printing profile, ________.
documents could be printed without downloading drivers
A VPN provides ________.
end-to-end security
For a game joystick, you would use the ________ Bluetooth profile.
human interface device
NFC transmission standards have been set for ________.
its service band
Selecting locations for access points first involves ________.
laying out circles of a chosen diameter in a diagram of the building
In IoT device transmission, published distance limits are relevant for ________.
legitimate users
The protection of communication between a wireless client and the access point is ________.
link security
IoT transmissions usually involve ________.
low transmission distances
The state of security in IoT transmission standards is ________.
mixed
After authentication in 80.11i PSK mode, a wireless client communicates with the access point via a(n) ________ key.
pairwise session
Centralized access point management ________.
reduces management costs
802.11i PSK initial authentication mode was created for ________.
residences with a single access point
A ________ is an unauthorized internal access point.
rogue
When a wireless client in an evil twin attack transmits, ________.
the evil twin reads the frame, encrypts it, and passes on the frame
If a company uses 802.11i for its core security protocol, an evil twin access point will set up ________ 802.11i connection(s).
two
In 802.1x initial authentication mode, the authenticator is the ________.
wireless access point
