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4 Cards in this Set
- Front
- Back
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Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media? - application - transport - data link - physical |
- data link |
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Which statement describes signaling at the physical layer? - Sending the signals asynchronously means that they are transmitted without a clock signal. - In signaling, a 1 always represents voltage and a 0 always represents the absence of voltage. - Wireless encoding includes sending a series of clicks to delimit the frames. - Signaling is a method of converting a stream of data into a predefined code |
- Sending the signals asynchronously means that they are transmitted without a clock signal. |
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What are two reasons for physical layer protocols to use frame encoding techniques? (Choose two.) - to reduce the number of collisions on the media - to distinguish data bits from control bits - to provide better media error correction - to identify where the frame starts and ends - to increase the media throughput |
- to distinguish data bits from control bits - to identify where the frame starts and ends |
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The throughput of a FastEthernet network is 80 Mb/s. The traffic overhead for establishing sessions, acknowledgments, and encapsulation is 15 Mb/s for the same time period. What is the goodput for this network? - 15 Mb/s - 95 Mb/s - 55 Mb/s - 65 Mb/s - 80 Mb/s |
- 65 Mb/s |
