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As everyone knows, necessarily with the connection 300-135 questions & answers of several hosts and corresponding cable 300-135 exam in the terminal, 100-105 questions & answers forming a computer network can realize in the management 100-105 questions & answers of network software.However, 300-135 exam as a running network, its large amounts of data 300-135 exam and information 300-135 questions & answers are 100-105 questions & answers stored in the host, terminal or 100-105 questions & answers extern memory, 100-105 questions & answers and it is vital that 100-105 questions & answers how to prevent illegal users access.The 300-135 exam range of computer communication is expanding, and 100-105 questions & answers it has gone 300-135 questions & answers far beyond the precinct 100-105 questions & answers of LAN.Therefore, 300-135 questions & answers the data 300-135 exam in 300-135 exam the transmission is vulnerable, and we can encrypt the message 300-135 exam 300-135 exam data to make others expect legal person not know.In 300-135 questions & answers the whole data communication network, we 300-135 questions & answers should take some measures to protect 300-135 exam data.There are some factors to influence 300-135 questions & answers network security.The 300-135 exam first one is Information leak.The information on 300-135 exam the network is wiretapped.The second one is 300-135 questions & answers information tamper.such network infringe is called active offender.The third 300-135 exam one is transmission of illegal traffic.

Users may allow 100-105 questions & answers themselves to 300-135 exam communicate with others on a type, but they 100-105 questions & answers prohibit 300-135 questions & answers 100-105 questions & answers the communication of other types.The fourth 100-105 questions & answers one is 300-135 questions & answers environment effect.The natural environment and social environment have great 100-105 questions & answers 300-135 exam adverse effects on 100-105 questions & answers computer network.The fifth one is human safety 300-135 questions & answers factors.If 300-135 exam the managers do it have a correct 300-135 questions & answers use according to regulations, and even leak the keys information of system on purpose, the safety 100-105 questions & answers consequence 300-135 questions & answers is inestimable.As we know, there are many technologies 300-135 questions & answers to 100-105 questions & answers 300-135 exam protect 300-135 questions & answers computer network, and now the more mature security technology of wildly use is mainlyfirewall technology, anti-virus technology, etc.Firewall technology is the 300-135 questions & answers security application measures that network takes toimplements access control to Internal and external nets communication through the predefined security strategy.