题目内容
（请给出正确答案）
[判断题]
VLAN（Virtual Local AreaNetwork)，即虚拟局域网。是将一个物理的局域网在逻辑上划分多个广播域的技术。（)
答案
查看答案
重要提示：请勿将账号共享给其他人使用，违者账号将被封禁！
查看《购买须知》>>>
题目内容
（请给出正确答案）
答案
更多“VLAN(Virtual Local AreaNetwork)，即虚拟局域网。是将一个物理的局域网在逻辑上划分多个广播域的技术。()”相关的问题
第2题
A、VLAN的全称是Virtual Local Area Network
B、VLAN的全称是Virtual Local Access Network
C、VLAN隔离了冲突域
D、VLAN之间可以直接互通
第4题
VLAN(Virtual Local Area Network)即虚拟局域网，是一种通过将局域网内的设备逻辑而不是物理划分成一个个网段从而实现虚拟工作组的技术。
此题为判断题(对，错)。
第7题
In the【27】of a wing, this would make possible a material that is dense, strong and load-bearing at one end, close to the fuselage,【28】the extremities could be made less dense, lighter and more【29】. It is like making bespoke materials,【30】you can customise the physical properties of every cubic millimetre of a structure.
The new technique combines existing technologies in a(n)【31】way. It starts by using finite-element-analysis software, of the type commonly used by engineers,【32】a virtual prototype of the object. The software models the stresses and strains that the object will need to【33】throughout its structure. Using this information it is then【34】to calculate the precise forces acting on millions of smaller subsections of the structure.【35】of these subsections is【36】treated as a separate object with its own set of forces acting on it — and each subsection【37】for a different microstructure to absorb those local forces.
Designing so many microstructures manually【38】be a huge task, so the researchers apply an optimisation program, called a genetic algorithm,【39】This uses a process of randomization and trial-and-error to search the vast number of possible microstructures to find the most【40】design for each subsection.
(1)
A．off
B．out
C．away
D．in
第8题
Renne Tubegeihan uses his own Website to invite people into his virtual home. While John Marashod designed his own Website to attract other parents of disabled children, " I'd say the goal of this site is to basically link parents in the same situation with disabled children and exchange ideas with one another. "
Renne and John are part of a growing number of surfers who have established their own Websites. If you want to weave a Web yourself, it's easier than you think. The first step is to get your own Web address. They're sold by Web service providers like Microsoft, AT&T, and other local companies. You are expected to pay between 15 and 25 dollars every month to rent space for your site. But some companies, like Tripod and Geocities, issue the site for free if you agree to allow their advertising on your page.
Before you get into setting up your own Website, you should go around and do some surfing and check out other sites. Once you know what you want to do, it's time to build. If you just want the basics, you can use Microsoft's free Internet Assistant; or if you want to get a little fancier, you can buy a software program like Adobe Page Mill for 100 dollars, or Microsoft's FrontPage Editor for 150 dollars.
According to the passage, some people create their own Websites in order to______.
A．sell their personal things
B．set up family business
C．communicate with others
D．show off their Website building skills
第9题
But, while gizmos make a global network possible, it takes human cooperation to make it happen. Standage's insight in this regard adds depth to his technological history, he under scores the relevance to our own time of the struggles of Samuel Morse in America, William Cooke in England, and other telegraph pioneers. They made the technology work efficiently, sold it to a skeptical public, and overcame national and international bureaucratic obstacles. The solutions they found smooth the Internets way today.
Consider a couple of technical parallels. Telegrams were sent from one station to the next, where they were received and retransmitted until they reached their destination. Stations along the way were owned by different entities, including national governments. Internet data is sent from one server computer to another that receives and retransmits it until it reaches its destination. Again the computers have a variety of owners.
Then there is the social impact. The Internet is changing the way we do business and communicate. It makes possible virtual communities for individuals scattered around the planet who share mutual interests. Yet important as this may turn out to be, it is affecting a world that was already well connected by radio, television, and other telecommunications. The Associated Press, Reuters, and other news services would have spread the Stare report quickly without the Internet. In this respect, the global telegraph network was truly revolutionary. The unprecedented availability of global news in real time gave birth to the Associated Press and Reuters news services. It gave a global perspective to newspapers that had focused on local affairs. A provincialism that geographical isolation had forced on people for millennia was gone forever. Some seers naively hailed this as a force for world peace. They predicted that tensions over cultural and ethnic differences would relax as people interacted in real time. Visionaries say the same about the Internet. While communications can smooth this process, they don't automatically make it happen. As the experience of the past century and a half has shown, peace takes the will to make it work and sustained effort by all parties.
What does "the gem of late 20th century technology” refer to？
A．The telegraph.
B．Information theory.
C．Materials technology.
D．The Internet.
