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Firewalls
After several security related internet newsgroups started overflowing with posts it becomes clear something hand to done to help secure networks. The first firewalls were implemented in routers between different segment s of the network. These firewalls were basically ACLs in routers.
Slowly firewall technology started to evolve. Early firewall technology known as packet filtering was not enough to stop the constant attacks. The firewall had to more intelligent and understand the different protocols.
Routers The network layer (also called layer3) manages device addressing tracks the location of devices on the network and determines the best way to move data. Which
how does PPTP express the data?
.test a number to be prime number in network security
Cost Saving Better performance scalability and viability translates into saving for website operators. Because fewer application web servers are required to meet
The major problems with multiple networks are as given: A computer attached to a given server can only interact with other computers attached to the similar network.
Computer Networks 1. Write about different network structures in use. 2. Explain the architecture and usage of ISDN. 3. Describe the concept of framing in Data Link Layer
working of belmen ford algorithm
ICMP is used to send error and control messages. Ping uses ICMP to carry the echo-request and echo-reply.
Q. Which steps are used at receiver end by check sum? The receiver follows these steps: The unit is divided into "k" sections each of "n" bits All sections are
Memory Memory Layout BOOTROM This device stores the information of the startup diagnostic code in permanently. It performs diagnostics of hardware wh
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