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what are the categories of LAN
Q. Use of Infrared? - Frequencies among 300 GHz and 400 THz - Short-range communication - High frequencies can't penetrate walls - Necessitate line-of-sight propagati
Repeaters - Operate only in physical layer - Connects two segments of the same LAN - Both segments must be of the same protocol - Only forwards frames; does not filter
ACK Received If an ACK is received by the sender. The SR sender marks that packet as having been received by the receiver.
features
Memory Memory Layout BOOTROM This device stores the information of the startup diagnostic code in permanently. It performs diagnostics of hardware wh
TCP Segment Structure Figure shows the format of the TCP segment. The header consists of a 20 bytes fixed part plus a variable size options fields. The description o
Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies
In point-to-point message passing, single process sends/receives message to/from another process. There are four communication modes for sending a message: i) Buffered mode
Domain Name A domain name is a way to recognize and locate computers connected to the Internet. This is a text name of a computer in network or Internet. Domain names are chan
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