The Internet is a(66)network of networks which interconnects(67)ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes - long distance collaborations, retrieving free software and documents,(68)library catalogs,(69)in t6 supercomputers - the list of current Internet activities and(70)is large and the range of possible future applications is as unlimited as our imagination.A．worldwideB．abroadC．largeD．extensive
The Internet is a(66)network of networks which interconnects(67)ranging from the simplest personal computers to the most sophisticated mainframes and supercomputers. This network of networks is used for an extraordinary range of purposes - long distance collaborations, retrieving free software and documents,(68)library catalogs,(69)in t6 supercomputers - the list of current Internet activities and(70)is large and the range of possible future applications is as unlimited as our imagination.
A．worldwide
B．abroad
C．large
D．extensive
相关考题：
●Melissa and Love Letter made use of the trust that exists between friends or colleagues.Imagine receiving an (66) from a friend who asks you to open it.This is what happens with Melissa and several other similar email (67) .Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book,previous emails, web pages (68) .As administrators seek to block dangerous email attachments through the recognition of well-known (69) , 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 movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (70) access to your network.(66) A．attachmentB．packetC．datagramD．message(67) A．virtualB．virusC．wormsD．bacteria(68) A．memoryB．cachesC．portsD．registers(69) A．namesB．cookiesC．softwareD．extensions(70) A．crackerB．userC．customerD．client
●A basic premise of OGSA is that everything is (66) by a service：a network enabledentity that (67) some capability through the exchange of messages.Computational resources，storage resources，networks，programs，databases，and so forth are all (68) .This adoption of auniform. service-oriented model means that all components of the environment are virtual.Morespecifically，OGSA represents everything as a Grid service：a Web service that conforms (69) a set of conventions and supports standard interfaces for such purposes as lifetime management.This core set of consistent interfaces，from which all Grid services are implementeD． (70) theconstruction of hierarchical，higher-order services that can be treated in a uniform. way across layersof abstraction.(66) A．definedB．representedC．usedD．passed(67) A．providesB．haveC．expandsD．limits(68) A．elementsB．objectsC．servicesD．capability(69) A．ofB．toC．asD．from(70) A．formsB．groupsC．consistD．Facilitates
● Every valid character in a computer that uses even（66） must always have an even number of 1 bits.● The maximum number of data that can be expressed by 8 bits is（67） .● Integration （68） is the process of verifying that the components of a system work together as described in the program design and system design specifications.● GIF files are limited to a maximum of 8 bits/pixel, it simply means that no more than 256 colors are allowed in （69） .● Computer （70） is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing.（66）A. parityB. checkC. testD. compare（67）A. 64B. 128C. 255D. 256（68）A. tryingB. testingC. checkingD. coding（69）A. an imageB. a fileC. a windowD. a page（70）A. storageB. deviceC. processorD. network
A basic premise of OGSA is that everything is(66)by a service: a network enabledentity that(67)some capability through the exchange of messages. Computational resources, storage resources, networks, programs, databases, and so forth are all(68). This adoption of auniform. service-oriented model means that all components of the environment are virtual. Morespecifically, OGSA represents everything as a Grid service: a Web service that conforms(69)a set of conventions and supports standard interfaces for such purposes as lifetime management. This core set of consistent interfaces, from which all Grid services are implemented.(70)the construction of hierarchical, higher - order services that can be treated in a uniform. way across layers of abstraction.A．definedB．representedC．usedD．passed
Network(67)has full fights and permissions to all resources on a network.A．userB．guestC．administratorD．owner
Youwillwanttwotreesabouttenfeetapart,from_____tosuspendyourtent.(A)there(C)which(B)them(D)where
You will want two trees about ten feet apart, 选择 Youwillwanttwotreesabouttenfeetapart,from_____tosuspendyourtent.(A)there(C)which(B)them(D)where
Network(67)has full rights and permissions to all resources on a network.A．userB．guestC．administratorD．owner
Melissa and Love Letter made use of the trust that exists between friends or colleagues. Imagine receiving an(66)from a friend who asks you to open it. This is what happens with Melissa and several other similar email(67).Upon running, such worms usually proceed to send themselves out to email addresses from the victim' s address book ,previous emails, web pages(68).As administrators seek to block dangerous email attachments through the recognition of well- known (69), virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to . bat and . cnd 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 movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the(70)access to your network.A．attachmentB．paeketC．datagramD．message
ourcompanyisresearchinganewapplicationthatrunsoverIPv6，butpartofitmuststillhaveIPv4support.YourcompanyusesatraditionalIPv4network.YourplanisnottorunIPv6overthewholenetwork，buttosegmentpartsofthenetworkoreventooperatesimultaneouslywithIPv6andIPv4.YoumustmakeabriefpresentationaboutIPv6technologytotheboardoftechnicaldirectors.Whichthreeoftheseitemscouldbepartofyourpresentation？（）A.TunnelIPv6overIPv4toconnectfar-endIPv6networks.B.ExplainwhyconfiguringIPv4andIPv6atthesametimeoverthesameLANinterfaceisnotpossible.C.ExplainwhyconfiguringIPv4andIPv6atthesametimeoverthesameLANinterfaceispossible.D.WhatisthemeaningofEUI-64andhowdoesitwork？E.TunnelIPv4overIPv6toconnectfar-endIPv4networks.