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Repeater known as regenerator; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the original bit pattern and transfer the refreshed copy back in to the layer.
Advantages and Disadvantage of Packet Filtering firewall Advantages One screening router can help protect entire network One key advantage of packet filter
Explain in DES Data Encryption Standard : DES stands for Data Encryption Standard and is explained as follows: DES is at present the most widely used key cryptographic systems
Mapping between a hardware address and a protocol address is known Address Resolution. A router or host uses address resolution when it requires to transmit a packet to another dev
(a) Briefly explain the following security goals provided by cryptography: confidentiality, authentication, integrity and non-repudiation. (b) State Kerckhoff's Princip
Transposition technique
Consider a computer system with three users: Alice, Bob and Cindy. Alice owns the file alicerc, and Bob and Cindy can read it. Cindy can read and write the file bobrc, which Bob ow
In this section, you should create a program that emulates a GBN node. Two GBN nodes will be running to send packets to each other through the UDP protocol. For emulation purpose,
doing coursework in Network Security to present a possible solution to the problem at hand by creating a prototype of the new network security infrastructure. This new design shou
People,Procedures,Data Asset Identification-Risk Management The human resources, data information and documentation assets are more difficult to identify. People having knowle
Question: (a) Describe how IPSec provides data source authentication. (b) Which protocol can be used to provide limited traffic analysis confidentiality? Why is it "limite
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