Wireless signals experience attenuation. T/F
Spread spectrum is a popular way of making wireless transmissions more secure. T/F
Wireless networks are laid out using the same topologies as wired networks. T/F
An ad hoc arrangement would work well for a WLAN with many users. T/F
WiMAX is defined by the IEEE 802.11 standard. T/F
In wireless communication, to exchange information, two antennas must be tuned to the same __.
A directional antenna issues wireless signals along a(n) __ direction.
In __, a wireless signal splits into secondary waves when it encounters an obstruction.
__ is a significant problem for wireless communications because the atmosphere is saturated with electromagnetic waves.
In __ wireless systems, the transmitting antenna focuses its energy directly toward the receiving antenna which results in a point-to-point link.
In the case of connecting two WLANs, access points could be as far as __ feet apart.
In __ scanning, the station transmits a special frame, known as a probe, on all available channels within its frequency range.
A unique characteristic of the 802.11 data frame is its __ field.
The average geographic range for an 802.11a antenna is __ meters.
__ is the least popular WLAN standard
An 802.11g antenna has a geographic range of __ meters.
__ may use either the 2.4-GHz or 5-GHz frequency range.
__ is an 802.11n feature that allows two adjacent 20-MHz channels to be combined to make a 40-MHz channel.
__ is an 802.11n network feature allowing the combination of multiple frames into one larger frame.
__ is a command-line function for viewing and setting wireless interface parameters and it is common to nearly all versions of Linux and UNIX.
If intermittent and difficult-to-diagnose wireless communication errors occur, __ might be the culprit.
Most satellites circle the Earth __ miles above the equator in a geosynchronous orbit.
__ satellites are the type used by the most popular satellite data service providers.
Which satellites transmit and receive signals in the 12 to 18 GHz band?
Clients are able to exchange signals with satellites as long as they have a __ path.
Line Of Sight
To establish a satellite Internet connection, each subscriber must have a __.
The use of multiple frequencies to transmit a signal is known as __ technology.
The __ is a unique character string used to identify an access point.
A(n) __ assesses client requirements, facility characteristics, and coverage areas to determine an access point arrangement that will ensure reliable wireless connectivity within a given area.
802.11b and g signals can extend a maximum of __ feet and still deliver data reliably.
__ means that satellites orbit the Earth at the same rate as the Earth turns.
Uses the 2.4-2.4835-GHz frequency range.
The locations of the transmitter and receiver do not move.
Uses channels in the 5-GHz band and provides a maximum theoretical throughput of 54 Mbps.
Accepts wireless signals from multiple nodes and retransmits them to the rest of the network.
Represents the connection between a carrier’s antenna and a client’s transceiver.
Uses the 2.4-GHz frequency band and provides a maximum theoretical throughput of 54 Mbps.
The receiver can be located anywhere within the transmitter’s range.
Refers to the connection between a client’s transceiver and the carrier’s antenna.
Boasts a maximum throughput of 600 Mbps.