ccna vs network plus

ccna vs network plus

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1.3.1 Insecurity of the Internet 1) Discovery and removal of shock wave virus In IE has a browser toolbar search engine tool button, you can implement web search, it has been tampered with after just to click the search tool button will link to the defacing Web sites. This is because the registry key of the search engine has been modified. The solution is as follows: (6) External programs should be checked with as many virus-checking software as possible ( including programs obtained from hard disks, floppy disks, local area networks, Internet, and E-mail ) . Unchecked executable files cannot be copied into the hard disk. Out of service. The data encryption process is the process of transforming the original digital data ( plaintext ) into digital data ( ciphertext ) completely different from the plaintext according to the encryption algorithm through the encryption system . For port scanning, this technique uses the PORT command to indicate that the passive User DTP is listening on a port on the target computer . Then the intruder tried to list the current directory with the LIST command, and the result was sent out via Server-DTP . If the target host is listening on a port, the transmission will succeed ( resulting in a 150 or 226 response ) . No it, there will be 425 of Can not Build the Data Connection : Connection refused The . Then, use another PORT command to try the next port on the target computer. The advantage of this approach is obvious: it is difficult to track, you can pass through the anti- firewall. The main disadvantage is that the speed is very slow,ccna vs network plus, and some FTP servers can eventually get some clues and turn off the proxy function.

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Latest Cisco CCNA 200-301 Dumps

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