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Q. Applications of networks?
End systems (hosts):
- Run application programs
- Example email, Web
- At -edge of network
Client/server model
- Client host requests accepts service from always-on server
- Example email-client/server, Web-browser/server
Client/server model is applicable in an intranet.
Peer-Peer model:
- No fixed clients/servers
- Every host can act as both client & server
Instance Gnutella, Napster, KaZaA
- WWW
- Instant Messaging (text messaging on cellular phones and Internet chat)
- Peer-to-Peer
- Internet Phone
- Video-on-demand
- Distributed Games
- Remote Login (Telnet)
- File Transfer
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Demarcation is the point in which responsibility changes hands.
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To use a subnet or classless address, table under routers and hosts that have address must keep two pieces of information with every address: the 32-bit address itself and another
ATM designers select cells over packets because of the following facts: Cells are fixed length and memory management for them is easy. Handling variable length packets tends
Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is known as path.
Q. Building a Defense in networking? When building a defense you must use a layered approach that includes securing - The network infrastructure the communications protocol
telecommunication processors
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