ccna job in uk

ccna job in uk

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The IEEE description, LAN technology is the "dispersed in the computer a building or several neighboring buildings, a terminal, a peripheral mass memory device, a controller, a display, and a network to connect to other networks using the network "Connectors, etc. are connected to each other to communicate at a high speed ." 2) Retina recognition technology 3. HTTP processing 2. Simple implementation of network monitoring (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. In this way, the access from the internal host to the outside can be fully controlled. (3) Install really effective anti-virus software and upgrade frequently. 3. Theoretical basis of practical training This is a Trojan horse,ccna job in uk, you will never run it. With the continuous progress of the interactive process of websites, more and more things can become the dissemination medium of Trojan horses, such as Java Script , VBScript , ActiveX.xlm ...Almost every new function of WWW will lead to the rapid evolution of Trojan horses. 2. The digital signature mechanism (Digital Signature Mechanisms) To realize the security of e-commerce, the transaction security of e-commerce is especially important. To achieve truly secure online shopping, you must enter a website that uses SSL or SET . SSL is the protection of the session. The security services provided by SSL include entity authentication, integrity, confidentiality, and non-repudiation through digital signatures. This is the biggest threat facing computer networks, and enemy attacks and computer crimes fall into this category. This type of attack can be divided into the following two types: one is active attack, which selectively destroys the validity and integrity of information in various ways; the other is passive attack, which does not affect the normal operation of the network. Under circumstances, intercept, steal, and decipher to obtain important confidential information. Both of these attacks cause great harm to computer networks and lead to the leakage of confidential data. Man-made malicious attacks have the following characteristics.

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