Exam 8: Wireless Networking

Describe the use of CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance)to access a shared medium.

Using Bluetooth version 2.0,communicating nodes can be as far as ____ meters apart.

If intermittent and difficult-to-diagnose wireless communication errors occur,____ might be the culprit.

MATCHING Match each item with a statement below: a.mobile wireless f.802.11b b.fixed wireless g.802.11a c.access point h.802.11g d.uplink i.802.11n e.downlink -The locations of the transmitter and receiver do not move.

WiMAX is defined by the IEEE 802.11 standard.

Wireless networks are laid out using the same topologies as wired networks.

In ____ scanning,the station transmits a special frame,known as a probe,on all available channels within its frequency range.

The use of multiple frequencies to transmit a signal is known as ____________________ technology.

MATCHING Match each item with a statement below: a.mobile wireless f.802.11b b.fixed wireless g.802.11a c.access point h.802.11g d.uplink i.802.11n e.downlink -The receiver can be located anywhere within the transmitter's range.

Describe what an administrator can do if during a wireless router configuration,something goes awry.

MATCHING Match each item with a statement below: a.mobile wireless f.802.11b b.fixed wireless g.802.11a c.access point h.802.11g d.uplink i.802.11n e.downlink -Uses DSSS (direct-sequence spread spectrum)signaling.

Wireless signals experience attenuation.

The ______________________________ is a unique character string used to identify an access point.

Explain how the satellite Internet access service known as a satellite return arrangement works.

LEO satellites orbit the Earth with an altitude as low as ____ miles.

Explain how residential WiMAX is installed.

MATCHING Match each item with a statement below: a.mobile wireless f.802.11b b.fixed wireless g.802.11a c.access point h.802.11g d.uplink i.802.11n e.downlink -Transmission from a satellite transponder to an earth-based dish-shaped antenna.

In ____,a wireless signal splits into secondary waves when it encounters an obstruction.

Define reassociation and provide two examples explaining when it occurs.

Describe the wireless spectrum.