Summary

Çtico-oom

* A cable modem can provide up to 90 times the speed of a dial-up connection.

* DSL uses the unused bandwidth on a telephone line to deliver fast digital data transmission.

* Satellite delivers downstream data in bursts up to 400 kbps, with upstream speeds of up to 125 kbps

* Wireless provides bridging at 2 Mbps throughput at distances of up to 25 miles.

© 2004 Cisco Systems, Inc. All rights reserved. BCRAN v2.1—4-8

Quiz

Use the practice items here to review what you have learned in this lesson. The correct answers follow in the Quiz Answer Key.

Q1) Broadband is generally defined as any sustained speed above_.

D) 128,000 bps

Q2) A cable modem could provide up to_times the transmission speed (9 Mbps) for remote access in the upstream compared to other technologies.

Q3) Like leased lines, DSL connections are_.

A) inexpensive

B) always on

C) easy to install

D) all of the above

Q4) Most broadband satellite options use a satellite in orbit approximately_above the equator.

A) 22,300 miles

B) 23,300 miles

C) 32,300 miles

D) 28,300 miles

Q5) Wireless technology provides line-of-sight bridging at_throughput at distances of up to 25 miles, but you must have line of sight.

A)

1-Mbps

B)

2-Mbps

C)

3-Mbps

D)

4-Mbps

Q6) LMDS has a slightly higher throughput than_fiber lines.

A)

T1

B)

T3

C)

ISDN

D)

cable

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