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Explain IBM's SNA Architecture
SNA is a computer networking architecture that was formed by IBM to give a network structure for IBM mainframe, midrange, and personal computer systems. SNA explains a set of proprietary communication protocols and message formats for the exchange and management of data on IBM host networks.
which are 5 major network services
Question : a) Give three examples of vulnerable services which are among the overwhelming majority of successful attacks. b) Name the five outside sources which can be the
State about the communications network 1) The communications network may only accept blocks of data up to a specific size. (2) Error control might be more effective with a
Physical layers defines with synchronizing the 1s and 0s on the wire.
Error control in TCP-duplicate & out-of-order segment- Duplicate segment - The destination TCP merely discards the segment Out-of-order segment - Not acknowledged unt
Line Layer The line layer provides the synchronization multiplexer, multiplexing and automatic protection switching for the layer . primary concerned with the reliable trans
Describe how Link-State routing protocols work
Dotted decimal representation is a syntactic form the IP software uses to express 32-bit binary numbers when communicating with humans. Dotted decimal presents every octet in decim
CONNECTION MULTIPLEXING: In various circumstances transceiver can be in convenient e.g. workstations in a LAN. Connection multiplexer acts multiple computers to a single tran
Can you describe PPP packet format?
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