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Firewalls
Firewalls emerged as a new technology in 1990s but its idea was present near two decades back. Historical context of "Firewall" is quite literal. It was in use to describe a barrier that separates a portion of a building dealing with fire, like a stove or a kitchen, from the rest of the structure. Later firewall found its use in connection with steam engines. It was described as a wall which separates an engine fire from passenger cars. Firewall ideas were greatly matured when Jeff Mogul from Digital Equipment Corporation published his papers in 1988 . His work described various processes that could be used to make networks secure. It was Marcus Ranum of AT&T Bell Laboratories who proposed the design of firewall and its components. He also coined the term "Firewall" for this quickly maturing technology. His work got much attention in 1990 and firewalls gained commercial popularity
Document the Switch Configuration When you have done your troubleshooting, capture the output of the show run command and save it to a text document for each switch.
What are instance variables? Instance variables are those which are explained at the class level. Instance variables require not be initialized before using them as they are au
What is Round Trip Time? The duration of time it takes to send a message from one end of a network to the other and back, is known as RTT.
What is Error Control ? Error control is both error detection and error correction. It allows the receiver to inform the sender of any frames lost or damaged in transmission an
Explain Asymmetric encryption
Transparency really means adumbrating the network and its servers from the users and even the application programmers.
Residential Access Residential access is connecting home end systems ( typically a PC but increasingly a home network) into the network. One form of residential access i
Q. Explain TCP-IP Routing Architecture? The TCP/IP routing architecture looks extremely much like the OSI routing architecture. Hosts utilize a discovery protocol to o
Connectionless Multiplexing and De multiplexing Java program running in a host can create a UDP socket with the line Datagram's socket my socket = new datagram's socket
When you move the NIC cards from one PC to another PC, does the MAC address gets transferred as well? Yes, that's because MAC addresses are hard-wired into the NIC circuitry, n
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