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39 Cards in this Set
- Front
- Back
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The amount of output power and usable frequency ranges for wireless devices are determined by which organization?
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regulatory authorities |
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What role d o wireless repeaters play in wireless networking
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they are used to extend the basic service area
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Bluetooth uses what modulation type?
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Frequency Hopping spread spectrum
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Uses three radio chains per band and multiple input/multiple output to transmit data?
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802.11n |
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Operates in 2.4 GHz Industrial, Scientific, and Medical band and supports data rates up to 54 Mbps?
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802.11b/g
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A high Rate/DSSS channel used to transmit data over 802.11g is _______ wide?
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20 MHz
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802.11g wireless networks can operate in which unlicensed RF band?
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2.4GHz
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What can contribute to VSWR in 802.11g?
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Impedance Mismatch
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THE SSID is also known as what?
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Name of th network
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WPA2 requires ____ for the encryption mechanism and _____ for the cipher |
CCMP and AES
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The access method that 802.11a uses to get control of a wirelss medium in order to transmit data is called what? |
(CSMA/CA)
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A beacon is an example of what type of frame?
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Management Frame
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802.11n use an enhanced radio technolgy known as MIMO. which statement correctly describes a benefit of MIMO?
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Increase in range and speedvia multipath
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WPA was developed as an interim solution for which amendment to the 802.11 standard?
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802.11i
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According to the 802.11a amendment, which of the following data rates are mandatory?
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6, 12, adn 24 Mbps
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Statis outupt transmit power of a small office or home office AP is typically:
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15 Dbm and 32 Mw
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802.11a/b/g/n devices use what type of communication?
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Half duplex
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High Rate/ DSSS devices operate in which frequency range?
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2.4GHz
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How many access points can be co-located without overlapping in 802.11g?
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3
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Which 802.11 is multiple radio chains and multiple antennas?
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802.11n, 802.11ac
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Which network access method attempts to avoid collisons?
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CMSA/CA
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without any regulatory domain taken into consideration, the 2.4 GHz freq allows for how many channels using 802.11b?
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14
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What is maximum data rate of HR/DSSS 802.11b devices?
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11 Mbits
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How many non-overlapping channels availble in unlicensed 2.4 GHz Industrial, Scientific, and Medical band?
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3 channels |
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When a WLAN device listens for beacon frames, it is participaing in which phase?
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Passive Scanning
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Which Radio Frequency channels are considered non-overlapping for 802.11g network?
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1, 6, 11
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802.11b is capable of which of the fllowing data rates?
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1, 2, 5.5, 11 Mbps
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What otions are available when configuring WPA2?
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personal and enterprise
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Wireless bridges mus be configured with ______ and _____?
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Same SSID and Same RF channel
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APs work at which layer of the OSI model?
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Layer1 and 2
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Which freq ranges are used in 802.11a?
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5 GHz
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128-bit WEP encrytion uses a user-provided static key of what size?
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24 bit or 104 bit
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When SSID cloaking is enabled, which of the folowing occurs?
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Null beacon probe response
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128bit WEP Privacy encrytion uses ____ Initialization Vector and a _____ static key.
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24 bit and 128 bit
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When an attack passively captures and examines wireless frames from a victim's network, what type of attack is taking place?
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Eavesdropping
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Which of these attacks are considered DOS attacks?
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Deauthentication spoofing Jamming Attacks Floods |
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Which of these encryption technologies have been cracked?
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64bit and 128bit WEP |
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Which of these attacks would typically be associated with malicious eavesdropping?
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Packet reconstruction Protocol Analyze capture |
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Which of thse attacks are considred layer 2 denial of service attacks?
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All previous DOS minus Jamming
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