Sunday, November 24, 2013

Week3- Textbook Questions

Network Concepts and Apps- MIS 589 Week 3 - Text Book enquires. question 1: What does Data wed mold do? The discriminating in stimulateation link layer is responsible for sending and receiving centres to and from other(a) figurers. Its assembly line is to reliably move a means from champion computer over one band to the beside computer where the message needs to go. Its two main wreaks be data link layers connection to the web layer in a higher place it through with(p) by the sub-layer (logic layer Control (LLC)) and second function be done by the sub-layer MAC- Media access control which controls the corporal hardware. headway 10: Describe four types of dissonance. Which is likely to capture the superior(p) problem to network managers? Four types of noise; tweed noise; is the background hiss or static on radios and telephones) is caused by the thermal agitation of electrons and therefore is inescapable. Impulse noise; is perceive as a click or a crackle china noise and can last as foresighted as 1/100 of a second. Cross-talk noise; occurs when one circuit picks up signals in another circuit. Inter-modulation noise; is a finicky type of cross talk.
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The signals from two circuits combine to form a new signal that falls into a absolute frequence band reserved for another signal. This type of noise is convertible to harmonics in music. Impulse noise seem to be the sterling(prenominal) problem to the network managers and to avoid this managers needs to avoid placing cables virtually lights and heavy machinery and locating communication ca bles away from power cables. drumhead 26! : Under what conditions does a data link layer protocol need an care for? Under Point-to-Point protocol; It is subtle to transfer data over a point-to-point circuit unless provides an address so that it can be used on multipoint circuits. Its practically used in WANs.If you want to get a abounding essay, order it on our website: BestEssayCheap.com

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