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To search for any information needed on tomorrow’s Web, one only has to _____.
［A］wade through screen after screen of extraneous data
［B］ask the Web to dispatch some messenger to his door
［C］use smart software programs called “agents”
［D］explore Web sites by the thousands and pick out what’s relevant
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更多 “ To search for any information needed on tomorrow’s Web, one only has to _____.［A］wade through screen after screen of extraneous data［B］ask the Web to dispatch some messenger to his door［C］use smart software programs called “agents”［D］explore Web sites by the thousands and pick out what’s relevant ” 相关考题
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（68） are those programs that help find the information you are trying to locate onthe WWW.（68）A. WindowsB. Search EnginesC. Web SitesD. Web Pages
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● ___(68)___ are those programs that help find the information you are trying to locate on the WWW.(68)A. Windows B. Search Engines C. Web Sites D. Web Pages
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If you don’t know exactly where to find the information, you may use one of the many search engines on the Web. ()
此题为判断题(对，错)。
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If you need to access information and know where it is on the Web, you only need to enter the entire www address into your browser’s Uniform. Resource Locator (URL) field.()
此题为判断题(对，错)。
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One of the difficulties in building an SQL-like query lange for the Web is the absence of a database schema for this huge, heterogeneous repository of information. However, if we are interested in HTML documents only, we can construct a virtual(66)from the implicit structure of these files. Thus, at the highest level of(67), every such document is identified by its Uniform. Resource Locator(URL), has a title and a text Also, Web servers provide some additional information such as the type, length, and the last modification date of a document. So, for data mining purposes, we can consider the site of all HTML documents as arelation:Document(url,(68), text, type, length, modify)Where all the(69)are character strings. In this framework, anindividual document is identified with a(70)in this relation. Of course, if some optional information is missing from the HTML document, the associate fields will de left blank, but this is not uncommon in any database.A．schemaB．relationC．platformD．module
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l (3) are those programs that help find the information you are trying to locate on the WWW.A. WindowsB. Search EnginesC. Web SitesD. Web Pages www.54yjs.cn
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______ are those programs that help find the information you are trying to locate on the WWW.A．WindowsB．Search EnginesC．Web SitesD．WebPages
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are those programs that help find the information you are trying to locate on the WWW.A．WindowsB．Search EnginesC．Web SitesD．Web Pages
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●A project manager is called to an informal meeting with the customer and a problem is raised. This problem has major implications for the project manager's company, but the customer wants to pursue a solution at the meeting.The project manager should (72) .(72)A. tell the customer that he will not address any problems becausethis is only an information exchange meetingB. tell the customer that the problem is not sufficiently defined to determine the appropriate actionC. collect as much information on the problem without committing his company to a solutionD. give the customer a range of solutions that might be acceptable to his Company
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For any information system to serve its purpose,the information must be ( ) when it is needed.A.integralB.availableC.irreplaceableD.confidential
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（ ）are specialized programs that assist you locating information on the web.A.OSB.Browse C.DBMS D.Search engines
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The router SIS-R has been configured in a CIS network. As a network administrator, you were required to enable MPLS on that router.Which of the following description is making sense on the basis of the output information?（）A. CEF switching is only needed to forward labeled packets.B. CEF switching is needed on both ingress and egress interfaces on which MPLS is enabled.C. Interface-level CEF switching is needed only on egress interfaces that are sending IP packets on which the egress LSR performs the label imposition process.D. Interface-level CEF switching is needed only on ingress interfaces that are receiving IP packets on which the ingress LSR performs the label imposition process.
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For any information system to serve its purpose, the information must be( )when it is needed.A.integral
B.available
C.irreplaceable
D.confidential
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共用题干
First Image-recognition Software1. Dartmouth researchers and their colleagues have created an artificial intelligence software that uses photos to locate documents on the Internet with far greater accuracy than ever before.2. The new system,which was tested on photos and is now being applied to videos,shows for the first time that a machine learning algorithm（运算法则）for image recognition and retrieval is ac-curate and efficient enough to improve large-scale document searches online.The system uses pix- el（像素）data in images and potentially video—rather than just text-to locate documents. It learns to recognize the pixels associated with a search phrase by studying the results from text-based image search engines. The knowledge gleaned（收集)from those results can then be ap-plied to other photos without tags or captions（图片说明）,making for more accurate document search results.3 .“Over the last 30 years,”says Associate Professor Lorenzo Torresani,a co-author of the stud-“the Web has evolved from a small collection of mostly text documents to a modern,massive, fast-growing multimedia data set,where nearly every page includes multiple pictures or videos. When a person looks at a Web page, he immediately gets the gist（主旨）of it by looking at the pictures in it.Yet,surprisingly,all existing popular search engines,such as Google or Bing, strip away the information contained in the photos and use exclusively the text of Web pages to perform the document retrieval. Our study is the first to show that modern machine vision systems are accurate and efficient enough to make effective use of the information contained in image pix-els to improve document search.”The researchers designed and tested a machine vision system—a type of artificial intelligence that allows computers to learn without being explicitly programmed—that extracts semantic（语义的）information from the pixels of photos in Web pages. This information is used to enrich the description of the HTML page used by search engines for document retrieval.The researchers tested their approach using more than 600 search queries（查询）on a database of 50 million Web pa-ges.They selected the text-retrieval search engine with the best performance and modified it to make use of the additional semantic information extracted by their method from the pictures of the Web pages .They found that this produced a 30 percent improvement in precision over the original search engine purely based on text.A:using photosB: description of the HTML pageC: current popular search enginesD: document searchE: information in imagesF: machine vision systems
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共用题干
First Image-recognition Software1. Dartmouth researchers and their colleagues have created an artificial intelligence software that uses photos to locate documents on the Internet with far greater accuracy than ever before.2. The new system,which was tested on photos and is now being applied to videos,shows for the first time that a machine learning algorithm（运算法则）for image recognition and retrieval is ac-curate and efficient enough to improve large-scale document searches online.The system uses pix- el（像素）data in images and potentially video—rather than just text-to locate documents. It learns to recognize the pixels associated with a search phrase by studying the results from text-based image search engines. The knowledge gleaned（收集)from those results can then be ap-plied to other photos without tags or captions（图片说明）,making for more accurate document search results.3 .“Over the last 30 years,”says Associate Professor Lorenzo Torresani,a co-author of the stud-“the Web has evolved from a small collection of mostly text documents to a modern,massive, fast-growing multimedia data set,where nearly every page includes multiple pictures or videos. When a person looks at a Web page, he immediately gets the gist（主旨）of it by looking at the pictures in it.Yet,surprisingly,all existing popular search engines,such as Google or Bing, strip away the information contained in the photos and use exclusively the text of Web pages to perform the document retrieval. Our study is the first to show that modern machine vision systems are accurate and efficient enough to make effective use of the information contained in image pix-els to improve document search.”The researchers designed and tested a machine vision system—a type of artificial intelligence that allows computers to learn without being explicitly programmed—that extracts semantic（语义的）information from the pixels of photos in Web pages. This information is used to enrich the description of the HTML page used by search engines for document retrieval.The researchers tested their approach using more than 600 search queries（查询）on a database of 50 million Web pa-ges.They selected the text-retrieval search engine with the best performance and modified it to make use of the additional semantic information extracted by their method from the pictures of the Web pages .They found that this produced a 30 percent improvement in precision over the original search engine purely based on text.The new system was found more effective in document search than the_______.A:using photosB: description of the HTML pageC: current popular search enginesD: document searchE: information in imagesF: machine vision systems
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Just how much does the Constitution protect your digital data?The Supreme Court will now consider whether police can search the contents of a mobile phone without a warrant if the phone is on or around a person during an arrest.California has asked the justices to refrain from a sweeping ruling particularly one that upsets the old assumption that authorities may search through the possessions of suspects at the time of their arrest.It is hard,the state argues,for judges to assess the implications of new and rapidly changing technologies.The court would be recklessly modest if it followed California’s advice.Enough of the implications are discernable,even obvious,so that the justices can and should provide updated guidelines to police,lawyers and defendants.They should start by discarding California’s lame argument that exploring the contents of a smart phone—a vast storehouse of digital information—is similar to,say,rifling through a suspect’s purse.The court has ruled that police don’t violate the Fourth Amendment when they sift through the wallet or pocketbook of an arrestee without a warrant.But exploring one’s smart phone is more like entering his or her home.A smart phone may contain an arrestee’s reading history,financial history,medical history and comprehensive records of recent correspondence.The development of“cloud computing,”meanwhile,has made that exploration so much the easier.Americans should take steps to protect their digital privacy.But keeping sensitive information on these devices is increasingly a requirement of normal life.Citizens still have a right to expect private documents to remain private and protected by the Constitution’s prohibition on unreasonable searches.As so often is the case,stating that principle doesn’t ease the challenge of line-drawing.In many cases,it would not be overly onerous for authorities to obtain a warrant to search through phone contents.They could still invalidate Fourth Amendment protections when facing severe,urgent circumstances,and they could take reasonable measures to ensure that phone data are not erased or altered while a warrant is pending.The court,though,may want to allow room for police to cite situations where they are entitled to more freedom.But the justices should not swallow California’s argument whole.New,disruptive technology sometimes demands novel applications of the Constitution’s protections.Orin Kerr,a law professor,compares the explosion and accessibility of digital information in the 21st century with the establishment of automobile use as a virtual necessity of life in the 20th:The justices had to specify novel rules for the new personal domain of the passenger car then;they must sort out how the Fourth Amendment applies to digital information now.
The author believes that exploring one’s phone contents is comparable toA.getting into one’s residence.
B.handling one’s historical records.
C.scanning one’s correspondences.
D.going through one’s wallet
考题
（72）are specialized programs that assist you locating information on the web.A.OS
B. Browse
C. DBMS
D.Search engines
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（ ）are specialized programs that assist you locating information on the web.A.OS
B.Browse
C.DBMS
D.Search engines
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（）are specialized programs that assist you locating information on the web.
A.OS
B.Browse]
C.DBMS
D.Search engines
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A customer’s new rack contains 12 x p655 servers. The customer currently has an HMC with one 128-port async adapter with a rack mounted 16-port RAN. The HMC is already attached to two pSeries p630s. What upgrades， if any， are needed to the HMC to support the new p655 servers？（）A、No upgrades are needed.B、Add another 16-port RAN.C、Add an 8-port async adapter.D、Add an additional 128-port adapter.
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Your network contains a server named Server1 that has the Routing role service installed. Server1 has two network connections. One network connection connects to the internal network. The other network connection connects to the Internet.All network connections connected to the internal network use private IP addresses. You install a Web server named Web1. Web1 hosts a secured Web site that only allows connections over TCP port 8281. Web1 is connected to the internal network.You need to ensure that the secure Web site can be accessed from the Internet.What should you do from the Routing and Remote Access console？（）A、Configure Routing Information Protocol (RIP), and then activate authentication on the RIP interface.B、Configure Routing Information Protocol (RIP), and then configure the incoming packet protocol settings on the RIP interface.C、Configure Network Address Translation (NAT), and then add a new service to the NAT interface.D、Configure Network Address Translation (NAT), and then enable the Secure Web Server (HTTPS) service on the NAT interface.
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单选题A navigator fixing a vessel’s position by radar （）.A
can use radar information from one object to fix the positionB
should never use radar bearingsC
should only use radar bearings when the range exceeds the distance to the horizonD
must use information from targets forward of the beam
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单选题Tomorrow is Tom’s birthday. Have you got any idea _____the party is to be held?A
whatB
whichC
thatD
where
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单选题There’s only one day to go. You ______ finish your schoolwork by tomorrow.A
canB
willC
mustD
may
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单选题You are designing a Windows Azure application that will include two web roles. The web roles will communicate with on-premise development computers and on-premise databases. Web Role 1 must connect to development computers and databases. Web Role 2 must connect to only databases. What should you recommend？（）A
Create one endpoint group that contains the development computers and one endpoint group that contains the databases. Connect Web Role 1 to both endpoint groups. Connect Web Role 2 to only the database endpoint group.B
Create one endpoint group that contains the development computers and databases. Connect Web Role 1 and Web Role 2 to the endpoint group.C
Create one endpoint group that contains the development computers and one endpoint group that contains the databases. Connect the endpoint groups. Connect Web Role 1 and Web Role 2 to the development computer group.D
Create one endpoint group that contains the development computers and databases， and connectit to Web Role 1. Create one endpoint group that contains only the databases， and connect it to Web Role 2.
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