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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.
Access Networks and Physical Media Access networks are the physical links(S) that connect an end systems to its edge router. Which is the first router on a path fr
Network Service Model The network service model defines the characteristics of end to end transport of data between one edge of the network to the other that is betwe
What is DHCP? DHCP is short for Dynamic Host Configuration Protocol. Its major task is to automatically assign an IP address to devices across the network. It first checks for
Question: The input to the circuit in the figure is a square wave that is symmetrical about 0V. Sketch the output waveform.
Microcells As cells become smaller, antennas move from the tops of tall buildings or hills, to the tops of small buildings or the sides of large buildings, and finally to lamp
Write the layer on which layer does L2F, PPTP and L2TP operate?
Process communicating End systems communicate with each other by the processes. A process can be thought of a s program that is running within end systems. Process
What is meant by Symmentric Multiprocessing (SMP)? It treats all processors as equal. Any processor can do the work of any other processor. Applications are divided into thread
IGP= Interior gateway routing protocol and EIGRP= Enhanced Interior Gateway routing protocol IGP = use in one Autonomous and EIGRP = use with many autonomous
Describe about the term- network If network tends to lose the packets, it is better to acknowledge each one of them separately, so the lost packets could be retransmitted. On t
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