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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

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)。

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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1题

VLAN(VirTual Local Area Network)的中文含义是局域网。()
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第2题

下列关于VLAN的说法正确的是()
下列关于VLAN的说法正确的是()

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

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第3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。()
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第4题

VLAN(Virtual Local Area Network)即虚拟局域网,是一种在物理局域网上构建多个逻辑局域网的技术。()
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第5题

For Ethernet virtual services to be created on T3 EMS, options of "VLAN ID hold&
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第6题

下例属于VLAN接口类型的有()。

A.local port

B.trunk port

C.hybrid port

D.access port

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第7题

With Airbus's giant A380 airliner about in to take to the skies, you might think planes co
uld not get much bigger — and you would be right. For a given design, it turns【21】, there comes a point where the wings become too heavy to generate【22】lift to carry their own weight.【23】a new way of designing and making materials could【24】that problem. Two engineers【25】University College London have devised an innovative way to customise and control the【26】of a material throughout its three-dimensional structure.

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

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第8题

I' m usually fairly skeptical about any research that concludes that people are either hap
pier or unhappier or more or less certain of themselves than they were 50 years ago. While any of these statements might be true, they are practically impossible to prove scientifically. Still, I was struck by a report which concluded that today's children are significantly more anxious than children in the 1950s. In fact, the analysis showed, normal children ages 9 to 17 exhibit a higher level of anxiety today than children who were treated for mental illness 50 years ago.

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

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第9题

A lot of real businesses are focusing on the Internet as a way of building sales, but some
people with nothing to sell are creating their own Websites to announce wedding plans, show off pictures of their kids or just have communications. It's not as hard as you think and it can be a lot of fun. Carol Masser has some tips on building your own Website. "Like my living room, or my study, it's where I put mementos (纪念品) , collectibles (收藏物) , books and paintings and things that I would like to show to my friends and relatives. "

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

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