Computer Networks

This type of SONET device receives an OC-N signal from which it can demultiplex and terminate any number of DSn and/or OC-M signals.

This parameter in an ATM network gives the maximum amount of traffic that can be submitted by a source to an ATM network and is expressed as ATM cells per second.

This channel of ISDN network ensures the transmission of user data at lower rates than 64 kbps.

ISDN modems are interface adapters used for connecting one or more TE2(non- ISDN) devices to an ISDN network.

Telephone lines use serial transmission mode where data is sent sequentially, one bit at a time, over a single channel. Parallel transmission requires multiple simultaneous paths, which standard telephone infrastructure doesn't support.

ARPANET (Advanced Research Projects Agency Network), created by the US Department of Defense in 1969, was the direct precursor to the modern Internet. It pioneered packet-switching technology and TCP/IP protocols that evolved into today's Internet.

Telex is a telecommunication system that combines 'teleprinter' and 'exchange' to enable direct message transmission between teleprinters. The term derives from the technology's ability to automatically route and exchange telegraphic messages.

Wi-Fi (Wireless Fidelity) is the technology that allows wireless connections between devices like laptops and local area networks. It uses radio waves to provide wireless high-speed Internet and network connections. LAN is wired, while 'Configure' and 'Booting' are processes, not technologies.

A multiplexer is a digital circuit that selects one of several input signals and forwards it to a single output. It is commonly called a data selector because it selects which data input to transmit. Data distributor, decoder, and encoder are different circuit functions.

Protocols define standardized rules and conventions that enable two or more systems to communicate with each other. They specify format, timing, sequencing, and error control. Logical (B) and physical (C) channels are the media used, not the protocols themselves.

TELNET (TELetype NETwork) is a network protocol that allows a user to access a remote terminal over a network. It provides terminal emulation, enabling a local terminal to behave as if directly connected to the remote system. The name derives from teletype machines, not telephones.

ARPANET (Advanced Research Projects Agency Network) was developed by the US Department of Defense and was the first operational packet-switching network, serving as the foundation for what later became the modern Internet.

It interconnects different networks and determine the optimal path for a packet of data to traverse through a interconnected series of networks to reach its destination.

This networking configuration shields the developer from some of the many complexities of networking.