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____ effectively prevents collisions because every device must wait until it receives permission before it can transmit.

In FHSS, the amount of time needed to move from one frequency to another is the ____ time.

Antennas play a vital role in receiving signals, but no role in transmitting.

____ antennas are used for long distance, point-to-point wireless links, such as connecting buildings that are up to 42 kilometers (25 miles) apart.

Highly-directional antennas are generally concave dish-shaped devices.

A 1 Mbps transmission rate is achieved by sending a single symbol every microsecond.

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 transmission?

The FCC places no limits on the amount of power that can be generated by an IR.

What units are used to measure RF power gain and loss on a relative scale?