Term
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Definition
| is the physical transmission of data |
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Term
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Definition
| error notification, network topology, and flow control |
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Term
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Definition
| when buffers at a receiving unit are full, a message is sent to the sending unit to halt transmission as to keep from overwhelming the buffer. Think of overflowing cup... too much comes in and ends up spilling over, and liquid is wasted (information is lost, due to dropped data) |
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Term
| What devices are used on the data link layer, layer 2? |
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Definition
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Term
| What is transparent bridging? |
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Definition
| it is where data gets forwarded to a next hop, but because a new header is added to the data with the old one being destroyed before being sent to the next destination, a switch doesn't realize the data was previously forwarded and is just continuing on it's path |
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Term
| In Layer 2, what does the header that gets attached to the data consist of? |
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Definition
| MAC address and the source address |
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Term
| What is the idea behind the logical bus topology? |
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Definition
| the signal has to run through the network from one end to the other |
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Term
| What does layer one, the physical layer, do? |
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Definition
| it sends and receives bits... 0s and 1s |
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Term
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Definition
| the electrical, mechanical, procedural, and functional requirements for activating, maintaining, and deactivating a physical link between end systems |
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Term
| What does DTE stand for and where is it usually found? |
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Definition
| data terminal equipment, and it is found usually at the attached device |
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Term
| What does DCE stand for and where is it usually found? |
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Definition
| data communication equipment, or also known to older generations as data circuit terminating equipment. It is usually found at the service provider |
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Term
Network
Data Link
Physical
what are their associated devices? |
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Definition
3 routers
2 switches and bridges
1 hubs |
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