Exam 12: Electronic Commerce Systems

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A network topology is the physical arrangement of the components of the network.

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What is a digital certificate?

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A digital certificate is like an electronic identification card that is used in conjunction with a public key encryption system to verify the authenticity of the message sender.Trusted third parties known as certification authorities (CA s)(for example,Veri-Sign,Inc.)issue digital certificates,also called digital IDs.The digital certificate is actually the sender's public key that the CA has digitally signed.The digital certificate is transmitted with the encrypted message to authenticate the sender.

Which of the following statements is correct? The client-server model

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IP spoofing is a form of masquerading to gain unauthorized access to a Web server.

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What is the World Wide Web?

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The client-server model can only be applied to ring and star topologies.

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A virtual private network:

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The more individuals that need to exchange encrypted data,the greater the chance that the key will become known to an intruder.To overcome this problem,private key encryption was devised.

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In a star topology,when the central site fails

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What is a seal of assurance?

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In a ring topology

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An IP Address:

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Describe a denial of service (DoS)attack and identify three common forms.

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Which of the following statements is correct?

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Because of network protocols,users of networks built by different manufacturers are able to communicate and share data.

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List and briefly define the privacy conditions inherent to the Safe Harbor agreement

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Contrast a LAN and a WAN.Typically,who owns and maintains a WAN?

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The primary difference between a LAN and a WAN is

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The rules that make it possible for users of networks to communicate are called protocols.

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Sniffer software is

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