ccna course book in hindi

ccna course book in hindi

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gateway_ip 4) Program pointer integrity check 3. Consolidate control The concept, type, purpose and function of firewall (2) What is the role of the Key file in Kaspersky Anti-Virus ? Figure 3.21 City Key Management System The most widely used is Troyma. As long as someone runs the server-side program, if the client knows the server-side IP address, remote control can be achieved. The following program can be used to observe what the "victim" is doing. Of course,ccna course book in hindi, this program can be used for legitimate business, such as monitoring the operation of student computers. This refers to a traditional symmetric key encryption / decryption method of identification and signature. Party A needs Party B to sign an electronic document. Party A can generate a random code and send it to Party B. Party B uses the symmetric key agreed upon by both parties to encrypt the random code and send the electronic document back to Party A. Party A uses the same symmetric secret key. After the key is decrypted, the message is obtained and the random code is checked . If the random code is checked correctly, Party A can think that the message comes from Party B. This method solves " What you know " (What you know) . It is suitable for remote network transmission, but not suitable for large-scale crowd authentication, because symmetric key management is difficult. In symmetric key encryption / decryption authentication, ID+PIN ( identity unique identification + password ) is often used in practical applications . That is, the sender encrypts the ID and PIN with a symmetric key and sends it to the receiver. After decryption, the receiver compares with the ID and password stored in the background to achieve the purpose of authentication. The bank cards that people use in their daily lives use this authentication method. This method solved is "What" (the What you have have) and "What do you know?" (The What you know) . It is suitable for remote network transmission, and it is not suitable for electronic signature due to the difficulty of symmetric key management.

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Latest Cisco CCNA 200-301 Dumps

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