計算機水準考試-電子商務設計師分類模拟題專業英語
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電子商務設計師分類模拟題專業英語單項選擇題Originally introduced by Netscape Communications, ] are a general mechanism which HTTP Server side applications, such as CGI _2_, can use to both store and retrieve information on the HTTP 2 side of the connection.Basically, Cookies can be used to compensate for the 4 nature of HTTP? The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based 5 ?1>A.BrowsersB?Cookies C.ConnectionsD. Scripts2、A.graphicsB.processes C.scriptsD. texts3、A?ClientB.Editor C?CreatorD? Server4、A.fixedB?flexible C.stableD? stateless5、A.programsB?applicationsC? frameworksD? constrainsMelissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an 6 from a friend who asks you to open it. This is what happens with Melissa and several other similar email 7 .Upon running, such worms usually proceed to send themselves out to email addresses from the victim7 s address book, previous emails, web pages 8 ?As administrators seek to block dangerous email attachments through the recognition of well-known _9_, virus writers use other extensions to circumvent such protection. Executable (. exe) files are renamed to -bat and ? cmd plus a whole list of other extensions and will still run and successfully infect target users ?Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash moviez which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the 10 access to your network.6、A.attachmentB? packetC? datagramD. message7、A.virtualB. virusC? wormsD? bacteria8、A?memoryB. cachesC? portsD? registers9、A.namesB. cookiesC? softwareD? extensions10>A? crackerB. userC? customerD. clientNetworks can be interconnected by different devices. In the physical layer, networks can be connected by 11 or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer ? They can accept 12 , examine the MAC address,and forward the frames to a different network while doing minor protocol translation in the process. In the net work layer, we have routers that can connect two networks. If two networks have 13 network layer, the router may be able to translate between the packer formats . In the transport layer we f ind transport gateway, which can interface between two transport connections . Finally, in the application layer, application gateways translate message 14 ? As an example, gateways between Internet e-mail and X. 400 e-mail must 15 the e-mail message and change various header fields.11>A.repeatersB. relaysC? packagesD? modems12>A.framesB. packetsC? packagesD. cells13>A.specialB? dependentC. similarD? dissimilar14>A. 關 鍵 詞： 計算機水準 考試 電子商務 設計師 分類 模拟 專業 英語
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