difference between ccna and icnd1 and icnd2

difference between ccna and icnd1 and icnd2

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Human negligence includes: error, negligence, misoperation, etc. For example, security vulnerabilities caused by improper operator security configuration, user security awareness is not strong, user password selection is careless, users arbitrarily lend their accounts to others or share with others, etc., will threaten network security. (4) Exit the registry editor and restart the computer. (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,difference between ccna and icnd1 and icnd2, and can run on different hardware and operating system platforms. e-commerce SSL , the SET protocol On the internal network, the IP address assigned to the device can be 0.0.0.0 to allow all outgoing connections to use the IP address from the global pool for translation 1988 Nian 11 Yue 2 , US 6000 more than one computer is infected, resulting in the Internet can not function properly. This is a very typical computer viruses computer network event, forcing the US government to respond immediately, defense department was established a computer emergency response team. The attacks in this incident included 5 computer centers and 12 regional nodes. In a general sense, if a computer system is safe, it means that the system can control external access to system information. In other words, only authorized users or processes running on behalf of that user can read, write, create, or delete information. 2) Two-way authentication Netmask of the local IP address Hardware security refers to the protection of computer system hardware safety, including the electrical characteristics of the computer, anti-electricity and anti-magnetic, and the safety of computer network equipment. It is physically protected from destruction and loss, ensuring its own reliability and providing basic security for the system mechanism. if(event ． button==3){alert('Do not view the source file ')} 4. Training steps ! shut down both interfaces: Word signature. Regarding the security of public-key algorithms, we quote: “The security of public-key algorithms is based on complex mathematical problems. According to the mathematical problems given, the following three types of systems are currently considered safe and effective. Effective: large integer factorization system ( representative is RSA) , discrete logarithmic system ( representative is DSA , ElGamal) and elliptic curve discrete logarithmic system ( representative is ECDSA) ".

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