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[主观题]

About transport of monitoring packets in the network, which of the following is wrong？

()

A.PTN62006300 can implement exchange of monitoring packets through gateway board and MSTP device.

B.Monitoring packets of PTN network are forwarded through layer 3 routes, without tunnel/PW encapsulation and decapsulation.

C.PTN devices, defined by distinct protocol standards G.8114 and Y.1731, cannot exchange monitoring packets with each other.

D.A PTN6100 can learn 150 mac addresses per second.

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更多“About transport of monitoring …”相关的问题

第1题

根据文章内容进行判断，正确写“T”错误写“F” International Transport Transport plays an important part in international business because goods produced have to be

根据文章内容进行判断，正确写“T”错误写“F”

International Transport

Transport plays an important part in international business because goods produced have to be delivered to the buyers abroad, and the delivery of goods is to be made possible by transport services. Goods are carried by several means of transport-on road or rail, by sea or air. And in recent years, combined transport which is a road-sea-rail carriage appeared.

With the expansion of international trade, the container service has become popular. The use of containers provides a highly effective form. of transport by road, rail and sea. Basically, about 98% of world trade is carried out by sea· transport. Besides transport by sea, road, or rail, nowadays in order to speed up delivery, carriage by air has also become popular.

()26. Transport plays an important part in international business because goods produced have to be sent to everywhere in the world.

()27. In recent years, combined transport which is a road-sea-rail carriage appeared.

()28. With the expansion of international trade, the combined transport service has become popular.

()29. The use of containers gives a very helpful method of transport.

()30. Today carriage by air has become popular because it can speed up delivery.

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第2题

Bolivia has a population of【56】. About one - tenth of the total population is white; one -

fourth are【57】Indians and white; and more than half are【58】Indians. The government and【59】are【60】the control of white people.

The Indians today live in【61】【62】their ancestors (祖先), most of whom were famers.【63】 work in the mines, for mining is the most important industry in Bolivia.【64】all the mining products,【65】is the most important, which【66】three fourths of all Bolivia's exports (出口). The eastern slopes (斜坡) of the Andes, since there are very few roads there, are fertile (富饶的)【67】not highly developed. The two primary【68】of transportation are river boats and porters. East of the hill region【69】the great plains【70】tropical (热带的) plants【71】. A【72】problem for Bolivia is the transport of food from the warm regions, where it is grown, to the mountainous regions, where most of the people live.

Bolivia 【73】 its independence from Spain about a hundred years ago. It has been slow in developing,【74】its rich resources【75】a better future in it.

(41)

A．three and a half millions

B．a half three millions

C．three and a half million

D．a half three million

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第3题

Investment in the public sector, such as electricity, irrigation, public services and tran

sport (excluding vehicles, ships and planes) increased by about 10%, although the emphasis moved to the transport and away from the other sectors mentioned. Trade and services recorded a 16% to 17% investment growth, including a 30% increase in investment in business premises. Industrial investment is estimate to have risen by 8%. Although the share of agriculture in total gross investment in the economy continued to decline, investment grew by 9% in absolute terms, largely spurred on by a 23% expansion of investment in agricultural equipment. Housing construction had 12% more invested in it in 1964, not so much owing to increased demand, as to fears of new taxes and limitation of building.

Total consumption in real terms rose by close on 11% during 1964, and per capital personal consumption by under 7%, as in 1963. The undesirable trend towards a rapid rise in consumption, evident in previous years, remained unaltered. Since at current prices consumption rose by 16% and disposable income by 13%, there was evidently a fall in the rate of saving in the private sector of the economy. Once again consumption patterns indicated a swift advance in the standard of living. Expenditure on food declined in significance, although consumption of fruit increased. Spending on furniture and household equipment, health, education and recreation continued to increase. The greatest proof of altered living standards was the rapid expansion of expenditure on transport (including private cars) and personal services of all kinds, which occurred during 1964. The progressive wealth of large sectors of the public was demonstrated by the changing composition of durable goods purchased. Saturation(饱和) point was rapidly being approached for items such as the first household radio, gas cookers, and electric refrigerators, whereas increasing purchases of automobiles and television sets Were registered.

The author thinks that the trend towards a rapid rise in consumption was "undesirable" because______.

A．people saved less

B．people were wealthy

C．people consumed less

D．expenditures on luxuries in creased

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第4题

It seems certain that cities in the future will have to change.They cannot go on devel

oping as they are at present.Because the world's population is increasing, there will be more people in the cities of tomorrow.It may not be possible for any family to live in a house with land around it.There will not be enough space for this.An answer to this problem of space may be the skyscraper city.A plan for a city like this has been made by an engineer called Wilem Frischmann.His idea is to build great skyscrapers.Each building would be three kilometers high.In this skyscraper city about 250 000 people would live.They would work and spend their free time in it.They would not need to leave the city unless they wanted to.They would be about to move about in the city by a transport system controlled by computers.Each skyscraper city would be joined to other skyscraper cities by underground tunnels.One of the highest buildings in the world nowadays is the Empire State Building in New York.It is about 450 meters high.The skyscraper cities would be about seven times as high as it.

31.The skyscraper city means().

A.a city in the sky

B.a city made up of very tall buildmgs

C.a city made up of glass houses

D.a very tall and huge building

32.What causes Wilem Frischmann to plan his skyscraper cities？（）

A.People living in cities want to live more comfortably.

B.People in the future will want skyscraper cities.

C.Soon there will not be enough space for cities like those of today.

D.This is the modern idea of buildings.

33.About()people could live in each skyscraper city.

A.250000

B.a million

C.25000

D.450000

34.The skyscraper would be().

A.450 meters high

B.36000 meters high

C.3150 meters high

D.250 000 meters high

35.Which of the following statements is true？ ()

A.The world's population is decreasing.

B.Skyscraper cities would be joined by underground tunnels.

C.People in such cities couldn't leave.

D.Wilem's tall building would be 8 kilometers high.

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第5题

I’m ______ for news about them. （)

A.nervous

B.anxious

C.eager

D.terrible

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第6题

CompArisons WErE DrAwn BEtwEEn thE DEvElopmEnt oF tElEvision in thE 20th CEntury AnD thE DiFFusion oFprinting in thE 15th AnD 16th CEnturiEs. yEt muCh hAD hAppEnED {{u}} (67) {{/u}} .As WAs DisCussEDBEForE, it WAS not {{u}} (68) {{/u}} thE 19th CEntury thAt thE nEwspApEr BECAmE thE DominAnt prE-EIECtroniC {{u}} (69) {{/u}}, Following in thE WAkE oF thE pAmphlEt AnD thE Book AnD in thE {{u}} (70){{/u}} oF thE pErioDiCAI. it WAS During thE SAmE timE thAt thE CommuniCAtions rEvolution {{u}} (71){{/u}} up, BEginning with trAnsport, thE rAilwAy, AnD IEADing {{U}} (72) {{/u}} through thE tElEgrAph,thE tEIEphonE, rADio, AnD motion piCturEs {{u}} (73) {{/u}} thE 20th-CEntury worlD oF thE motor CAr AnDthE AirplAnE. not EvEryonE sEEs thAt proCEss in {{u}} (74) {{/u}}. it is importAnt to Do so.it is gEnErAlly rECognizED, {{u}} (75) {{/u}}, thAt thE introDuCtion oF thE ComputEr in thE EArly 20thCEntury, {{u}} (76) {{/u}} By thE invEntion oF thE intEgrAtED CirCuit During thE 1960s, rADiCAlly ChAngEDthE proCEss, {{u} (77) {{/u}}its impACt on thE mEDiA WAS not immEDiAtEly {{u}} (78) {{/u}}.As timEwEnt By, ComputErs BECAmE smAllEr AnD morE powErFul, AnD thEy BECAmE "pErsonAl" too, As wEll As .{{u}} (79) {{/u}}, with DisplAy BEComing shArpEr AnD storAgE {{u}} (80) {{/u}} inCrEAsing. thEy WErEthought oF, likE pEopIE, in{{u}} (81) {{/u}} oF gEnErAtions, with thE DistAnCE BEtwEEn gEnErAtions muCh{{u}} (82) {{/u}}.it WAS within thE ComputEr AgE thAt thE tErm "inFormAtion soCiEty" BEgAn to BE wiDEly usED to DEsCriBEthE {{u}} (83) {{/u}} within whiCh WE now livE. thE CommuniCAtions rEvolution hAs {{u}} (84) {{/u}}Both work AnD lEisurE AnD how WE think AnD FEEI Both ABout pIACE AnD timE, But thErE hAvE BEEn {{u}}

(85) {{/u}} viEws ABout its EConomiC, politiCAl, soCiAl AnD CulturAl impliCAtions. "BEnEFits" hAvE BEEnwEighED {{u}} (86) {{/u}} "hArmFul" outComEs.AnD gEnErAlizAtions hAvE provED DiFFiCult.

A.ABovE

B.upon

C.AgAinst

D.with

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第7题

John: Hello, Maria!______. Maria: Yes, I'm pretty busy lately. How about your st

John: Hello, Maria!______.

Maria: Yes, I'm pretty busy lately. How about your studies？

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第8题

（）---__---I’m reading a book