ccna kurs pdf

ccna kurs pdf

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An Internet worm is an independent program that can run without the intervention of computer users. It spreads by continuously gaining some or all of the control rights on the vulnerable computers in the network. The biggest difference between a worm and an ordinary virus is that it does not require human intervention, and can replicate and spread autonomously and continuously. Since the interception and encryption of data in this program are mainly carried out during the sending and receiving process,ccna kurs pdf, it mainly introduces the processing of the data during the data sending and receiving process. Figure 8.3 IE client settings (4) follow the example of EDI trading form, requires the software to follow the same protocol and message format, the software developed by different manufacturers have compatibility and interoperability functions, and can run on different hardware and operating system platforms. 3.4 Encryption technology of computer network (3) To solve the backdoor program left by the virus, remove all the Tftp*.exe and Root.exe files in the Scripts directory of the IIS service . (2) The network is full of useless data packets, and the source addresses are all forged. (2) Online merchants: In online electronic stores that meet SET specifications, providing goods or services must be a company organization that has the conditions for the use of corresponding electronic money and engages in commercial transactions. (1) Link encryption means that the transmitted data is only encrypted at the data link layer on the physical layer, regardless of the source and sink. It is used to protect data between communication nodes. The receiver is each node machine on the transmission path, and the data must be decrypted and re-encrypted in each node machine , in turn, until it reaches the destination. 2. Virus solution Mode, it means to use PORT mode. Windows 98SE : In the compressed package Win98_41.cab . (4) Non-repudiation, the sender’s digital certificate is only owned by the sender, so after the sender uses his digital certificate to digitally sign the email before transmission, the sender cannot deny sending the email. Virus infection can be divided by the boot-type virus, file virus and the hybrid virus . 3 species. Among them, boot viruses mainly infect the boot area of ​​the disk.

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Latest Cisco CCNA 200-301 Dumps

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