cisco ccna 1 y 2 pdf

cisco ccna 1 y 2 pdf

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Proxy server Figure 9.3 The specific steps of SET digital certificate application (2) Certificate server: SZY 's independent root CA , which is on the same physical computer as the Web server. (2) Master the acquisition of security certificates in E-mail services. (2) Download Fixfun.exe , this is Symantec out of a specially cleared Funlove virus gadgets; after downloading security deposit onto a blank floppy disk. The above download and save process must be carried out on a computer that is confirmed to be virus-free to ensure that the program itself will not be infected. 1. Active defense protection technology Intranet The number on the left is the number of computers that this route passes through. × ms is the round-trip time to send a message to that computer, in ms . Since the round-trip time of each message is different each time, Tracert will display the round-trip time 3 times. Direction conduit permit | deny protocol global_ip global_mask[operator port[port]] foreign_ip foreign_mask [operator port [port]] Encryption system: composed of algorithms and all possible plaintext, ciphertext and keys. Understand the classification, transmission mode and harm of computer viruses Firewall Discarded in the city of Troy, let the enemy drag it into the city as a trophy. Soldiers in the Trojan horse crawled out of the Trojan horse when the enemy was celebrating victory at night and relaxed their vigilance, and joined forces outside the city to capture Troy. The sending process can be divided into two situations. Once the registration is successful, you can engage in e-commerce activities on the Internet. When actually engaged in e-commerce activities, Because the registry is more complicated, Trojan horses often like to hide here, check what programs are under it, In addition, as the implementation language of the protocol program in IE and NetScape , the Java applet still has the following security vulnerabilities: internal (3) The spread is extremely fast, and more attention is paid to deception. In this way, sensitive information is not tampered with during the transmission of digital signatures, and other people who have not been authenticated and authorized cannot see or read the original data, which plays a role in keeping sensitive data confidential in the transmission of digital signatures. Packet) and Multicast Packet . However, the key information in broadcast packets and multicast packets is far less than unicast packets. 1) Destructive Trojan Horse The virus body file of Folder.htt . When the user double-clicks the mouse to enter the infected folder, the virus will be activated. Since the virus is activated once, it will be copied in the memory once,cisco ccna 1 y 2 pdf, so when the user enters the infected file multiple times When folder, the virus will enter the memory in large quantities, causing the computer to run slower and slower, and the virus will also spread through the network along with the letter template.

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Latest Cisco CCNA 200-301 Dumps

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