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How Does a Firewall Protect
Firewalls work by controlling the information that comes in and out of the network. By using the Application Proxy service, the flow of information to the network can be controlled. A proxy is an application program that permits or forbids access by accepting or rejecting requests sent to it. Only valid users can log in and pass through a proxy service. It works on the Application level of the OSI model . Another technique that can be used is Encryption. A firewall may also combine encryption to provide confidentiality and authenticity. However this feature never works alone but is always combined with one of the above methods.
Security Security is the protection of hardware software and data from unauthorized access. Restricted physical access to computer password protection limiting user priv
GRP uses a composite metric complete up of bandwidth and delay by default, it updates each 60 Seconds and will trigger an update if the topology changes.
For VOIP, first you need to consider the codec to use. Although there are many voice codecs, MyCo wants the safest bet and suggests that you design with the most known and oldest c
Can you tell how actually NAT works?
Q. Explain about Congestion control? Congestion control Open-loop congestion control - prevent congestion before it happens retransmission policy - Ret
Configure the Logical Topology Step: Configure the host computers. Configure the static IP address, subnet mask, and gateway for every host computer. Note: The followi
Performance Running on inexpensive hardware oracle web cache increase the throughput of website by several orders of magnitude. In addition oracle web cache signific
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Q. Explain Simple Mail Transfer Protocol? Electronic Mail -Simple Mail Transfer Protocol (SMTP) is used to support email on the Internet -Addressing consists of two pa
The Network layer is used to route physical data to the destination point, it decides the actual path from where data travels to destination point. The network layer supports both
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