Computing EglishComputing English.docVIP

专英-pyw 第  PAGE \* MERGEFORMAT 15 页 共  NUMPAGES \* MERGEFORMAT 15 页 Computing English Final-Term Exam Preparation Final-Term exam, July 3th There are 4 parts: ——Fill-in-the-blanks (10 questions, each worth 2 points) = 20 ——Multiple choices (10 questions, each worth 2 points) = 20 ——True/False (10 questions, each worth 2 points) = 20 ——Open-ended questions (2/3 questions) = 40（You have to answer the questions without watching any video） Tips： ——Final exam is harder than Mid-term exam ——For all questions * WRITE something → Never leave it blanks! * Dont worry about incorrect spelling ——Study for the open-ended questions. It worth40 points! Open-ended Questions： （1）Summarize the journey that a successfully delivered packet has to go through in the internet. —— Data is separated into several packets. Look up the IP address in the DNS Server. Each packet is labelled appropriately with header. Packet launched onto the LAN, processed by local router and went to the corporate intranet. At each router, look at the routing table, if the IP address is inside the network, send to the destination. Otherwise, send to the router switch specified by the gateway IP address. Once it arrived, the network interface read it, send it to the proxy. Only packets with acceptable address and content can go through to the proxy and firewall. Packets are then read by the web server application. （2）Differences between Web 1.0, Web 2.0 and Web 3.0? —— Web 1.0: all the pages are static,only create link between pages. —— Web 2.0: all the pages are dynamic; create link between pages, people and media; people can freely add any keyword tags into any page/people/media folksonomy. —— Web 3.0: We attached meaning to every word/sentence. Everything is machine readable, has unique ID and can be formally classified ontology. We link specific data together, e.g. link person called A to the specific seat in the airplane. （3）What are all the new applications and features cr