IT331_Unit_8_Project

IT331_Unit_8_Project - bits per second Because DSL is...

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IT 331-02 Technology Infrastructure – Unit 8 Project 1
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IT 331-02 Technology Infrastructure – Unit 8 Project 2 1. Explain the difference between Frame Relay and Asynchronous Transfer Mode. Frame Relay is a high-speed data packet transfer service for local and long distance. Frame Relay can also carry voice now. Asynchronous transfer mode is also a high-speed data packet transfer service but can support a wide variety of traffic types at very high transfer speeds (White, 2009). 2. Identify the key features of T-1 Leased Line Services and Alternatives to Dial-up Modems Communication service providers established leased lines that serve as permanent, private connections between two locations. The telephone companies offer many different types of leased line services. The all digital 1.544 Mbps T-1 is the most popular type and it can transfer both voice and computer data. Digital Subscriber Lines (DSL) and cable modems are alternatives to dial up modems. They are faster than dial up modems with transfer rates as high as millions of
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Unformatted text preview: bits per second. Because DSL is highly dependent upon noise levels, a subscriber cannot be any more than 5.5 kilometers (2-3 miles) from the DSL central office. DSL service can be symmetric , in which the downstream and upstream speeds are identical, or asymmetric in which the downstream speed is IT 331-02 Technology Infrastructure – Unit 8 Project 3 faster than the upstream speed (White, 2009). Cable modems allow high speed access to wide area networks such as the Internet. IT 331-02 Technology Infrastructure – Unit 8 Project 4 Most cable modems are external devices that connect to the personal computer through a common Ethernet card. Cable modems can provide data transfer speeds between 500 kbps and 2.5 Mbps (White, 2009). IT 331-02 Technology Infrastructure – Unit 8 Project 5 References White, C. (2009). Data communications and computer networks, a business user's approach, fifth edition. Boston, MA: Course Technology, Cengage Learning....
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IT331_Unit_8_Project - bits per second Because DSL is...

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