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What are proxy servers and how do they protect computer networks?
Proxy servers primarily stop external users who identifying the IP addresses of an internal network. Without information of the correct IP address, even the physical location of the network can't be identified. Proxy servers can make a network virtually invisible to external users.
Persistent and No persistent Connections HTTP can use both persistent and non persistent connection. By defaults uses persistent connections. Persistent Connections
Q. What is Virtual LANs? Virtual LANs - LAN (Local area network) configured by software not by physical wiring Virtual LANs - Divides a LAN into logical, in
distortion
Virtual Private Network ( VPNs) When we use the internet or the risks to the security of our data arise. The solve the security problem a virtual private network used for
What is Uniform Resource Locator Address of location for accessing Web pages. Clicking on an icon or "hot text" is the most common means of accessing and using a URL. Typing
Transition Phases A PPP connection goes through phases which can be shown in a transition phase . Dead: In the dead phase the link is not being used. There is no ac
What is Applets Little programs that can make the Web pages more aesthetically beautiful by means of animations, text, and graphics moving across the screen.
What is the full form of FDM and TDM It is both. Each of the 100 channels is possess its own frequency band (FDM), and on every channel two logical streams are intermixed by th
With an object server, the Client/Server application is written as a set of communicating objects. Client object commune with server objects using an Object Request Broker (ORB). T
Source to Destination Data Transfer - Datagram approach - Each packet is treated independently. - Every pkt will take its own path to reach the destination. - There i
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