The purpose of the 802.11 PHY layer is to format packets to be received by the corresponding network protocol on the receiving device.
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Antennas play a vital role in receiving signals, but no role…
Antennas play a vital role in receiving signals, but no role in transmitting.
In FHSS, the amount of time needed to move from one frequenc…
In FHSS, the amount of time needed to move from one frequency to another is the ____ time.
____ effectively prevents collisions because every device mu…
____ effectively prevents collisions because every device must wait until it receives permission before it can transmit.
____ antennas are used for long distance, point-to-point wir…
____ antennas are used for long distance, point-to-point wireless links, such as connecting buildings that are up to 42 kilometers (25 miles) apart.
A 1 Mbps transmission rate is achieved by sending a single s…
A 1 Mbps transmission rate is achieved by sending a single symbol every microsecond.
Highly-directional antennas are generally concave dish-shape…
Highly-directional antennas are generally concave dish-shaped devices.
Following authentication, if the access point accepts the wi…
Following authentication, if the access point accepts the wireless device, it reserves memory space in the AP and establishes a(n) ____ ID for it.
Which type of RF signal uses only a single frequency for tra…
Which type of RF signal uses only a single frequency for transmission?
What units are used to measure RF power gain and loss on a r…
What units are used to measure RF power gain and loss on a relative scale?