Wireless Technology Pretest

What is the lowest frequency for AM-band radio waves?

• 0.5 MHz

• 1.5 MHz

• 10 GHz

• 2.5 MHz

A(n) _____ is an electromagnetic wave of a set frequency that is used to carry data.

• transmission wave

• AM Wave

• carrier wave

• FM Wave

Which organization is responsible for dividing the entire electromagnetic spectrum to prevent electronic equipment from interfering with one another?

• TIA

• IEEE

• ICANN

• FCC

Which of the following is not an antenna style?

• Dipole

• Infrared

• Yagi

• Omni

Th e spread spectrum technique that transmits data on multiple channels sequentially is called _____.

• Access encryption

• orthogonal frequency

• frequency hopping

• direct sequencing

_____ is used with wireless devices that use the 5-GHz radio band and can achieve data rates as high as 54 Mbps.

• Access encryption

• Orthogonal frequency-division multiplexing

• Frequency hopping

• Direct sequencing

If a WAP is present in a wireless network, the network is arranged in _____ mode.

• ad hoc

• Internet-ready

• infrastructure

• local-only

A(n) _____ refers to two or more wireless access points or devices using the same SSID.

• service set identifier

• basic service set

• independent basic service set

• extended service set identifier

Which of the following describes the transmission of two or more streams of data in the same frequency?

• Spatial multiplexing

• Orthogonal frequency-division multiplexing

• MIMO

• CSMA/CD

Wi-Fi refers to devices that are compatible with which IEEE standard?

• 802.3

• 802.6

• 802.11

• 802.13