2702A1 Discussion Sheet

2702A1 Discussion Sheet - 2702A1 Discussion Sheet SHORT...

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2702A1 Discussion Sheet SHORT ANSWER 1. ANS: Baseband is a transmission form in which (typically) digital signals are sent through direct current (DC) pulses applied to the wire. This direct current requires exclusive use of the wire’s capacity. As a result, baseband systems can transmit only one signal, or one channel, at a time. Broadband is a form of transmission in which signals are modulated as radiofrequency (RF) analog waves that use different frequency ranges. Unlike baseband, broadband technology does not encode information as digital pulses. REF: 88 2. ANS: Cost of installation - Can you install the media yourself, or must you hire contractors to do it? Will you need to move walls or build new conduits or closets? Will you need to lease lines from a service provider? Cost of new infrastructure versus reusing existing infrastructure - Can you use existing wiring? In some cases, for example, installing all new Category 7 UTP wiring may not pay off if you can use existing Category 5 UTP wiring. If you replace only part of your infrastructure, will it be easily integrated with the existing media? Cost of maintenance and support - Reuse of an existing cabling infrastructure does not save any money if it is in constant need of repair or enhancement. Also, if you use an unfamiliar media type, it may cost more to hire a technician to service it. Will you be able to service the media yourself, or must you hire contractors to service it?
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