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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.
What are firewalls? Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who need to steal data or computer viruses that
Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frames are 25 bytes long. Calculate the efficiency of stop-and-wait ARQ (a) Transmits a
When a P is returned when a Trace is run, it means the Protocol is unreachable.
Describe the concept of successor and feasible successor?
Multiplexing Multiplexing is the set of techniques that allows simultaneous transmission of multiple signals across a single data like. It is methods for efficient utiliza
What is the basic difference between latches and flip flops? Ans) flip flops have clock signal whereas latches dont require anyclock pulse..
Find the domain Name of 128.252.160.200
Intranet vs Internet vs LAN It is certainly possible that both Intranets and the Internet can coexist. As spelt theoretically, the entire Intranet could be located at a remote
Q. Explain Full Duplex data transmission? - Have two separate Communication channels as well as use each one for simplex Data traffic (in different directions). - If this is
System Deadlock A deadlock refers to the situation when simultaneous processes are holding resources and preventing each other from completing their implementation. The fol
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