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The most expensive method of accessing the Internet is to employ leased lines that directly connect to the ISP. This will enhance access rate to anywhere between 64 K and 1.5 Mbps, based on the system in use. Equipment called data service units (DSU) & channel service units (CSU) are set up in pairs, one pair at the customer site & the other at the ISP site. There is no phone dialing needed since the connection is direct. Also the only protocol required to complete the access is TCP/IP, for much the similar reason. Based on the transfer rate needed and the distance between the sites, cabling amongst them can be made with fiber optic cables or unshielded twisted-pair (UTP) copper wire.
What is basic purpose of Routers
Selective Repeat ARQ - Processing at the receiver additionally complex - The window size is reduced to 2(m-1) (2m/2 at most) - Both the transmitter as well as the receiv
Recognize the command to show the hardware platform information Ans) Show version is the command to show the hardware platform information
You are logged into a router, what command would represent you the IP addresses of routers linked to you? Ans)show cdp neighbors detail
Q. What do you mean by Modems? Telephone Modems - A telephone line has a bandwidth of approximately 2400 Hz for data transmission
What is a pseudo tty? A pseudo tty or false terminal enables external machines to connect by Telnet or rlogin. Without a pseudo tty, no connection can take place.
Three layers are called upper layers a) Application Layer - 7 b) Presentation Layer - 6 c) Session Layer - 5
Network Infrastructure: This project will require replacement of major networking components throughout the office. Virtualization will result in increased speed and reliability fo
Switches operate at layer 2. They enhance bandwidth by decreasing the number of devices sharing the media. They isolate collisions. Like a bridge they forward traffic based upon la
Q. Explain about Virtual Circuit Switching? Virtual Circuit Switching - All packets belong to a message (or) session is preserved. - Single route is selected between s
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