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What is Proxy Sever and Firewall
Proxy Sever
Also known as a proxy or application level gateway. It is an application that breaks the connection among sender and receiver. Thus, it helps us to stop hacker from getting Internet address and detail of a private network.
Firewall
Firewall is a method for keeping a network secure. It is mainly used in giving user's access to the Internet in a secure fashion as well as to separate a company's public web server from its internal network.
Inside a device, every address mask is stored as a 32-bit number. When we submit a prefix and an address mask they use a changed form of dotted decimal addressing known CIDR addres
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
Example Programmes for Parallel Systems Now we shall complete this with the examples on shared memory programming. Example 13: Adding elements of an array using two proce
Urgent Pointer This 16 bite which is valid only f the urgent flag is set is used when the segment contains urgent data. If defines the number that must be added t
Source quench is the process where the destination router, or end internetworking device will "quench" the date from the "source", or the source router. This usually occurs when th
INTERNETWORKING - TCP/IP 1. State the following terminologies: a) Node b) Router c) Host d) Subnet e) Network 2. What do you understand by IEEE 802 Local Area network 3.
Define the Class B Addresses? First two octets are the network number as well as the last two octets are the host number 16382 probable blocks for assignment to organi
differntiate between error control and flow control in data link layer
What is Forward Error Correction and data words Forward error correction It is the process in which the receiver tries to guess the message by using redundant bits. Da
Private Networks The information routes from one networks to another network through a leased line. If an organization needs privacy can use a private networks or networ
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