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Chpt 14 networking
| Term | Definition |
|---|---|
| When an analog sound is converted into 8-bit chunks 8000 times a second, this 64 kilobit per second data stream is created. | A) DS0 |
| What exists at both ends of a T1 connection? | B) A CSU/DSU |
| This frame type consists of a single framing bit and 24 data channels, each holding an 8-bit DS0 sample, for a total of 193 bits. | A) DS1 |
| Which line consists of 672 DS0 channels for a total throughput of around 45 Mbps? | B) T3 |
| Which standard supports a throughput of up to 39.8 Gbps? | C) SONET |
| If you purchase a T1 line in the United States, how will packets be switched? (Select two.) | B) Frame Relay |
| What describes the problem with “the last mile”? | A) The connection from a central office to a user’s home is analog whereas the rest of the network is digital. |
| What terms describe a common telephone connection? | E) Answers B and D B) POTS D) PSTN |
| What marks where the telephone company’s responsibility ends and yours begins? | B) Demarc |
| The CCITT established which set of standards? | V standards |
| Which is the fastest ISDN connection? | C) PRI |
| Sinjay is 200 meters from his ISP’s DSLAM. Which DSL version will provide him with, theoretically, up to 100 Mbps of both download and upload speed? | D) VDSL |
| Which protocol is used by cable companies? | B) DOCSIS |
| What is the benefit to using a satellite connection? | C) It is often available in remote locations where DSL and cable are not. |
| Which protocols support multicasting on VoIP networks? | E) Answers A and B A) SIP B) H.323 |
| A ____ line has a maximum throughput of 1.544 Mbps. | T1 |
| A ___________ is a device that converts signals between analog and digital. | modulator |
| It is the job of the ____________to convert between 8 -bit-wide digital data and 1 bit wide digital data. | UART |
| A _________ signal is defined as a digital signal of 64 kbps. | DS0 |
| A ___________ combines individual circuits with hundreds of others, creating a complex circuit on a single wire. | b. Multiplexer |
| ___________ is the primary standard in the United states for long-distance, high speed, fiber optic transmission systems. | Synchronous Optical Network (SONET) |
| In the world of DSL,_________provides equal upload and download speeds up to 15 Mbps. | symmetric DSL(SDSL) |
| __________ uses an IP network to transfer voice calls. | VoIP |
| __________ lines consist of two digital channels over the same copper wire used by regular analog telephones. | T1 |
| ______is a router feature that can help to optimize network traffic by labeling certain data to us a desired connection. |
Created by:
Matthew28
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