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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)。
答案
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更多“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”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
Why are America's kids so stressed？ The report cites two main causes; increasing physical isolation—brought on by high divorce rates and less involvement in community, among other things—and a growing perception that the world is a more dangerous place.
Given that we can't turn the clock back, adults can still do plenty to help the next generation cope. At the top of the list is nurturing(培育) a better appreciation of the limits of individualism. No child is an island. Strengthening social ties helps build communities and protect individuals against stress.
To help kids build stronger connections with others, you can pull the plug on TVs and computers. Your family will thank you later. They will have more time for face-to-face relationships, and they will get more sleep.
Limit the amount of virtual (虚拟的) violence your children are exposed to. It's not just video games and movies; children see a lot of murder and crime on the local news.
Keep your expectations for your children reasonable. Many highly successful people never attended Harvard or Yale.
Make exercise part of your daily routine. It will help you cope with your own anxieties and provide a good model for your kids. Sometimes anxiety is unavoidable. But it doesn't have to ruin your life.
The author thinks that the conclusions of any research about people's state of mind are
A．surprising
B．illogical
C．confusing
D．questionable
第9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
