ccna glossary pdf

ccna glossary pdf

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(1) attack system data area: i.e. attack computer hard master boot, the Boot sector, the FAT table, the file entry recorded content and the like ( in general, the system data area virus attack malignant virus, corrupted data easily Restore ) . For other requirements, it is recommended to close all UDP ports. Similarly, in Windows 2000/XP , print sharing, 2) The authenticity of the transaction Figure 5.8 Two NAT interface configuration shutdown half closed 0:10:00 udp 0:02:00 (7) Proxy server: A computer ( software ) system that exchanges data with external servers on behalf of internal network users . It sends the approved internal user's request to the external server, and at the same time sends the response of the external network server back to the user. System security settings of the operating system The netmask of foreign_ip . foreign_mask is a 32 bit made . 4 point portion consisting of partial decimal system number, such as 255.255.255.255 . Use 0 on a binary bit to specify a binary position that will be ignored . If needed, you can use subnets. If for foreign_ip use 0 , then on to foreign_mask should use 0 ; otherwise, shall be applied to the input foreign_ip of foreign_mask . (9) ICMP echo scan Flow control: hardware. SET is constantly improving, developing and changing. SET has an open tool SET Toolkit , which can be used by any e-commerce system to deal with security and confidentiality issues during operation. Among them, payment (Payment) and certification (Certificate) are the two main functions provided by SET Toolkit to system starters . 1975 ,ccna glossary pdf, American science writer John · Brunner (John Brunner) wrote a book called "Shockwave Rider" (Shock Wave Rider) book, the book describes for the first time in the information society, just as the computer both the work and the fight against evil story has become one of the best-selling book that year. (2) The virus enumerates the user disk drive letter from back to front. Infect 5 paths each time . The buffer is where data is stored in the memory. When the program tries to put the data in a certain location in the machine memory Table . 5 - . 9 various management model PIX prompt (3) Purchase information and object format. 16. The method of certificate expiration Invite a third-party assessment agency or expert to complete the network security assessment and minimize possible future risks. 6.4 Destructive behavior and defense of computer viruses DELEI() 4) Step 4 : Hide the IP address Use digital certificates to establish a rigorous identity authentication system through the use of symmetric and asymmetric cryptosystems and other cryptographic technologies to ensure that information is not stolen by others except the sender and receiver; information is not tampered with during transmission ; The sender can confirm the identity of the recipient through a digital certificate; the sender cannot deny its own information.

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Latest Cisco CCNA 200-301 Dumps

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