单选题AUM has been retaining about 15 minutes worth of undo. You want to double the retentionperiod， but not at the expense of new transactions failing. You decide to alter the system to set the parameter UNDO_RETENTION=18000. However， AUM still retains only
题目
单选题
AUM has been retaining about 15 minutes worth of undo. You want to double the retentionperiod， but not at the expense of new transactions failing. You decide to alter the system to set the parameter UNDO_RETENTION=18000. However， AUM still retains only about 15 minutes worth of undo. What is the problem？ （）
A
You need to alter the undo tablespace to add the RETENTION GUARANTEE setting.
B
You need to increase the size of the undo tablespace.
C
The undo tablespace is not set to auto-extend.
D
You need to alter the Recycle Bin to add the RETENTION GUARANTEE setting.
相似考题
更多“AUM has been retaining about 15 minutes worth of undo. You w”相关问题
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第1题：
Millions of pounds’ worth of damage ( ) by a storm which swept across the north of England last night.A. has been caused
B.have been caused
C.will be caused
D.will have been caused
参考答案：A
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第2题：
Ms Li ( ) about the food she has at lunch.A、is always complaining
B、has always complaining
C、has always been complained
D、complains always
参考答案：A
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第3题：
Millions of pounds’ worth damage ______ by a storm which swept across the north of England last night.A has been caused
B had been caused
C will be caused
D will have been caused
参考答案：A
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第4题：
—You are late. The meeting _________ for about ten minutes. 学科网 —I’m sorry. The t—You are late. The meeting _________ for about ten minutes.
—I’m sorry. The traffic is heavy.
A. has begun B. began C. has been on
正确答案：C
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第5题：
Passage Three
Americans are well known for the strange diets they always seem to be following．It seems that Americans like to diet almost as much as they like to eat．New types of diet plans are always coming out．Usually,though,they don't stay popular for long．
There are many diets on the market．It is often difficult to know which ones really work．It's also hard to believe how fast a dieter is supposed to shed pounds．A lot has been written about dieting．And some interesting facts about diets and foods have been discovered．
For example,did you know that the more celery you eat,the more weight you will lose?Celery has“negative”calories．The body burns up more calories digesting a piece of celery than there are in the celery stick itself．
Dieters?shun?potatoes because they think they are fattening．But they aren't．A potato has about the same number of calories as an apple．To gain a single pound,you would have to eat eleven pounds of potatoes!
Some dieters even worry about getting fat from licking postage stamps．But they have nothing to worry about．The glue on an average stamp has only about one-tenth of a calorie．Maybe a diet of post-age stamps would be popular?
Celery is a good food for the dieter because______A.it has a lot of protein
B.vegetables are not fattening
C.it has“negative”calories
D.it is easy to digest答案：C解析：暂无解析 -
第6题：
Initially， for the Automatic Workload Repository （AWR） statistics，the retention period is set to 7 days， the collection interval is set to 30 minutes and the collection level is set to Typical in your production database. You have been using the Memory Advisor for the last three months to generate recommendations for tuning memory components. However，when you observe the Memory Advisor on a Friday，you find that the statistics are available only for two days， Thursday and Friday，of that week. What would have caused the statistics to be removed？（）
- A、On Wednesday， the statistics have been purged.
- B、On Wednesday， the retention period has been set to zero.
- C、On Wednesday， the collection interval has been set to zero.
- D、On Wednesday， the collection level has been changed to All.
- E、On Wednesday， the retention period has been set to one day.
- F、On Wednesday， the retention period has been set to two days
- G、On Wednesday, the collection level has been changed to Typical.
- H、On Wednesday, the collection interval has been set to 1440 minutes.
正确答案:F -
第7题：
问答题【参考范例五】PART 2Describe an actor/actress in film who has impressed you. You should say: when you watched the film what role he/she plays in the film what is the film about and explain why you find him/her impressive.You will have to talk about the topic for one or two minutes.You have one minute to think about what you’re going to say.You can make some notes to help you if you wish.正确答案： I saw a film last year which impressed me deeply. It is a comedy in which Miriam Yeung who is a famous movie star and singer from Hong Kong impressed most. She is frank and funny, always with a big smile on her face. Though she is not the most beautiful actress she is very charming and cute. She showed her comedic talents in Love Undercover, in which she played as a fledgling policewoman who investigates the drug dealings by disguising herself as a waitress. But finally she lost her heart to Mob, the son of the leader. She vividly portrayed that funny, even bold young policewoman in this film. I was touched by the scene that when her friends were in danger, she had no regard for her own safety. You know they were in a dangerous situation which somebody would shoot them with a gun. I admire her kind heart and this role is very successful.解析：
考生应描述什么时候看的电影，这部电影给你留下什么印象(impressive，touching, memorable)；他／她在这部电影里扮演什么角色，简单介绍一下电影情节，并解释你为什么觉得他／她很独特，以及对他／她有什么样的评价。 -
第8题：
问答题Practice 2 Discussion—about 5 minutes In this part of the test you are given a discussion topic. You have 30 seconds to look at the prompt card, an example of which is below, and then about 3 minutes to discuss the topic with your partner. After that the examiner will ask you more questions related to the topic. For two candidates Compromise on price You have had a negotiation with a foreign trade delegation which comes to nothing. You have been told to have this big deal come off. Discuss the situation together and decide: ● which kind of activities would be suitable for a successful deal. ● how much are you to step down For three candidates Compromise on Price You have had a negotiation with a foreign trade delegation which comes to nothing. You have been told to have this big deal come off. Discuss the situation together, and decide: ● Which kind of activities would be suitable for a successful deal. ● how much are you to step down. ●·how to show your sincerity.正确答案： 【参考范例】
B: Well, it’s really a pity that we didn’t reach any agreement on price at our last meeting. I think it’s not sensible for either side to persist in his own terms. We can make some progress.
A: Yeah. 1 can’t agree more. In consideration of making a deal before their closing visit to our corporation, I’m also ready to make some concessions.
B: How much are we to step down?
A: How about coming down by… er, 3 percent.
B: By what?
A: By there percent.
B: Ah, honestly speaking, the price you offer is really not reasonable. Almost it should be forbidden if I may say. You know, we have to keep the ball rolling.
A: You might have some good suggestions in mind. Air your opinion, please.
B: How about meeting each other half way? Each steps a bit backward so that business can be done.
A: Maybe you are right.
Question: Do you think they are likely to accept the quotation you offer this time, B?
B: Well, I think they would. You know, supply exceeds demand at present and this situation is likely to continue for a long time yet, let alone that theirs have no advantages in quality, design, style or color assortment.解析： 暂无解析 -
第9题：
单选题AUM has been retaining about 15 minutes worth of undo. You want to double the retentionperiod， but not at the expense of new transactions failing. You decide to alter the system to set the parameter UNDO_RETENTION=18000. However， AUM still retains only about 15 minutes worth of undo. What is the problem？ （）AYou need to alter the undo tablespace to add the RETENTION GUARANTEE setting.
BYou need to increase the size of the undo tablespace.
CThe undo tablespace is not set to auto-extend.
DYou need to alter the Recycle Bin to add the RETENTION GUARANTEE setting.
正确答案： D解析： 暂无解析 -
第10题：
单选题Now I’d like you to spend five minutes talking about the topic: What _____ you do if you _____ President?Awill; became
Bwould; became
Cwould; have become
Dwill; have become
正确答案： A解析：
句意：现在，我们花五分钟的时间来讨论一下这个主题：如果你是总统，你会怎么做？本题考的是虚拟语气的用法，根据句意，此题表示的是与现在事实相反的虚拟，所以从句要用过去式，主句要用would。 -
第11题：
单选题Initially， for the Automatic Workload Repository （AWR） statistics，the retention period is set to 7 days， the collection interval is set to 30 minutes and the collection level is set to Typical in your production database. You have been using the Memory Advisor for the last three months to generate recommendations for tuning memory components. However，when you observe the Memory Advisor on a Friday，you find that the statistics are available only for two days， Thursday and Friday，of that week. What would have caused the statistics to be removed？（）AOn Wednesday， the statistics have been purged.
BOn Wednesday， the retention period has been set to zero.
COn Wednesday， the collection interval has been set to zero.
DOn Wednesday， the collection level has been changed to All.
EOn Wednesday， the retention period has been set to one day.
FOn Wednesday， the retention period has been set to two days
GOn Wednesday, the collection level has been changed to Typical.
HOn Wednesday, the collection interval has been set to 1440 minutes.
正确答案： F解析： 暂无解析 -
第12题：
问答题Practice 5 You should spend about 40 minutes on this task. Write about the following topic: It has been suggested that everyone in the world want to own a car, a TV and a fridge. Do you think disadvantages of such a development outweigh the advantages? You should write at least 250 words.正确答案： 【参考范文】
To judge the changes of life quality over time, people have to think from two points: do what they gain outweigh what they lose? And is what they gain all what they want? A naive approach, but one, which may be useful is: If their lives are full of pleasant things, they consider the things worth doing and themselves doing well, while if their lives are full of pain, they consider themselves to be suffering. Obviously, material and spiritual needs are both important.
Pursuits for many people in modern times are cars, house and things like these. When families do have cars and the like, they will benefit from these things in two aspects: For one thing, the life quality will greatly and positively improve such as driving one's private car on a snowy day without suffering from cold and the wet. For another, for a modem citizen, it is more or less a must-do to catch up with the novel trends of lifestyles In other words, in fact, it is not that they choose to use those things, but that those things choose to live with them, to be exact.
However, if we ignored the dark side of all these stuff, we would be fooled by these stuff without doubt. First, production, transportation and usage of those electrical appliances and vehicles leads to countless environmental issues like air pollution, noise and radiation, all of which cause many drawbacks to both human beings and natural beings at the same time. Second, running after things like private cares and LED TVs and competing with others will ignite the desire for materialism and lead to a vicious circle. Namely, people will judge their living standard depending on the material stuff they get and comparing with others. This will be a disaster if people seek only material comforts without spiritual pursuit.
All in all, if we finally recognize the truth and myth of living standard consisting of both material satisfaction and spiritual pursuit, owning stuff like cars is a choice but not a necessity for all citizens who should enjoy themselves also with family bonds, culture and faith.解析： 暂无解析 -
第13题：
Have you got five minutes to()?A.spare
B.spared
C.has spared
D.spares
答案：A
解析：本句意思：你有五分钟空闲时间吗？本句考查动词不定式用法，动词不定式做时间名词five minutes的后置定语，不定式作定语，与其被修饰的词在逻辑上有主谓关系、动宾关系或同位关系。
这里是动宾关系，spare five minutes，所以选A。
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第14题：
( )thirty－five minutes enough for you to get thereA、Is
B、Have
C、Are
D、Has
参考答案：A
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第15题：
Hurry up! The concert __________ for ten minutes.
A、has begun
B、had begun
C、has been on
D、began
正确答案：C
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第16题：
Passage Three
Americans are well known for the strange diets they always seem to be following．It seems that Americans like to diet almost as much as they like to eat．New types of diet plans are always coming out．Usually,though,they don't stay popular for long．
There are many diets on the market．It is often difficult to know which ones really work．It's also hard to believe how fast a dieter is supposed to shed pounds．A lot has been written about dieting．And some interesting facts about diets and foods have been discovered．
For example,did you know that the more celery you eat,the more weight you will lose?Celery has“negative”calories．The body burns up more calories digesting a piece of celery than there are in the celery stick itself．
Dieters?shun?potatoes because they think they are fattening．But they aren't．A potato has about the same number of calories as an apple．To gain a single pound,you would have to eat eleven pounds of potatoes!
Some dieters even worry about getting fat from licking postage stamps．But they have nothing to worry about．The glue on an average stamp has only about one-tenth of a calorie．Maybe a diet of post-age stamps would be popular?
This passage is all about______A.vegetables
B.fads
C.Americans
D.dieting答案：D解析：暂无解析 -
第17题：
A web application uses the HttpSession mechanism to determine if a user is “logged in”. When a user supplies a valid user name and password， an HttpSession is created for that user. The user has access to the application for only 15 minutes after logging in. The code must determine how long the user has been logged in， and if this time is greater than 15 minutes， must destroy the HttpSession. Which method in HttpSession is used to accomplish this？（）
- A、 getCreationTime
- B、 invalidateAfter
- C、 getLastAccessedTime
- D、 getMaxInactiveInterval
正确答案:A -
第18题：
问答题【参考范例七】PART 2Describe a person you live with or used to live with. You should say: when you lived together what is special about this person whether you live together now and explain why you choose this person to talk about.You will have to talk about the topic for one or two minutes.You have one minute to think about what you’re going to say.You can make some notes to help you if you wish.正确答案： I’d like to talk about my grandfather who is a very caring and kind person. We have lived together for many years. My grandfather was a middle school teacher in his hometown. He managed to send all of his to school though his salary was very low. He thought education is very important through a person’s life. I was brought up at my grandfather’s home. He taught me a lot of knowledge and he was very kind and nice to me. I never forget the efforts he made to help me read. He was a patient person and taught me as much as he could. He spent much time helping me and teaching me the right way to read. At last, the way worked. I learned to read quickly. When I was to be in the middle school, I left grandfather’s home and I missed him very much and the lessons I learnt from my grandfather always kept in mind.解析：
描述一个和你住在一起或者曾经和你住在一起的人。考生应说明这个人跟自己的关系，他／她是一个什么样的人；自己什么时候跟他／她住在一起，他／她对自己的影响等；并说明自己对他／她的评价。 -
第19题：
问答题Practice 3 Discussion—about 5 minutes In this part of the test you are given a discussion topic. You have 30 seconds to look at the task promptly, an example of which is below, and then about three minutes to discuss the topic with your partner. After that the examiner will ask you more questions related to the topic. For two candidates Satisfaction Survey The company you work for has conducted a satisfaction survey. We all know customer satisfaction is essential to the survival of our businesses. You have been asked to find out whether customers are satisfied. Discuss the situation together, and decide: ● how to find out whether the customers are satisfied ● what to ask in a customer satisfaction survey.正确答案： 【参考范例】
A: We all know customer satisfaction is essential to the survival of our businesses. How do you think we can find out whether our customers are satisfied?
B: In my opinion, in order to find out whether our customers are satisfied or not, the best and most direct way is to ask them.
A: Certainly many ways can be adopted to ask them whether they are satisfied with our company, our products, and the service they received. Can you name some common ways?
B: Sure. we can ask them face-to-face when they are about to walk out of our store or office. In addition, we can also call them on the phone after their visits and ask how they feel about our products and service.
A: Well. Good idea. Any other ways?
B: Mail them a questionnaire is also an option. This technique has long been used, which turns out to be quite effective
A: As far as I am concerned, we can ask certain questions in a customer satisfaction survey to get to know their expectations and to collect information about what need to be changed and what need to be maintained to increase their satisfaction.
B: By all means basic customer satisfaction questions should be asked, like “ Are you satisfied with the service you received?” Still, we need to ask the customers loyalty questions, for instance “What are the chances of you recommending our products/services to others?” Plus, some research needs to be done to know what the customer like and don’t like about the products, services and the company.
A: That is the point.
Follow-up questions:
(Q=question A=answer)
Q1: Do you think feedback from customers is the most important thing to consider? Why or why not?
A: Yes, their feedback can reveal a lot and be very useful. You can improve your products’ quality accordingly. ﹨No, it is not wise to completely depend on that, since some customers may not take it seriously when answering questions.
Q2: Is it essential to consider competitors’ products? Why or why not?
A: Yes. By comparison, you can know the differences and try to do a better job. ﹨No, feedback from customers is more reliable
Q3: Which is more important when aiming to improve customer services, staff training or customer satisfaction survey?
A: I would say staff training is the fundamental way to improve customer services.﹨Customer satisfaction survey can be more effective in improving customer satisfaction.
Q4: How often should you conduct a customer satisfaction survey?
A: As is said, the most wise way is to conduct a customer satisfaction survey often enough to get the most information, to upset the customers, but not so often as to upset the customers”.
Q5: Have you ever thought about what to do with the answers from a customer satisfaction survey?
A: Yes. The answers from different customers need to be compiled and used to predict trends.﹨No, feedback alone is not enough and further research together with other surveys needs also to be conducted.解析： 暂无解析 -
第20题：
问答题Practice 4 Discussion—about 5 minutes In this part of the test you are given a discussion topic. You have 30 seconds to look at the prompt card, an example of which is below, and then about 3 minutes to discuss the topic with your partner. After that the examiner will ask you more questions related to the topic. For two candidates Business Seminar Your company is going to hold a seminar on a certain topic about marketing You have been asked to help with the preparation for the seminar. Discuss the situation together and decide: ● What facilities and seminar arrangements you will need to make ● Who you are going to invite to attend the seminar and how to contact them For three candidates Business Seminar Your company is going to hold a seminar on a certain topic about marketing· You have been asked to help with the preparation for the seminar. Discuss the situation together and decide: ● What facilities and seminar arrangements you will need to make ● Who you are going to invite to attend the seminar and how to contact them ● Where and when you will hold the seminar正确答案： 【参考范例】
A: You know, there is going to hold a seminar about marketing.
B: Yeah, I just want to have a talk with you about that. What facilities and seminar arrangement do you think should we make?
A: Well. I think we should prepare whiteboard and water pen, a projector, computers.
B: Yes, I agree with you , what’s more, I think we also need drinking machines and coffee machines.
A: Yeah. You remind me of something. We also need some secretaries.
B: I share your view on that. Who are we going to invite to attend and how to contact them?
A: What about inviting some senior marketing managers and some specialists on marketing to give speeches?
B: Nice. We have to hire some interpreters to make the meeting go through well.
A: That’s right. Some of them may not speak English well.解析： 暂无解析 -
第21题：
单选题—Could you please tell me ______?—About twenty minutes ago.Awhen did you see this kid
Bwhere did you see this kid
Cwhen you saw this kid
Dwhere you saw this kid
正确答案： A解析：
句意：—你能告诉我你什么时候看到这个孩子的？—大概二十分钟之前。通过答句可知问的是时间，因此用疑问词when。tell me后面跟的是宾语从句，应用陈述句语序。 -
第22题：
问答题Practice 1 Discussion—about 5 minutes In this part of the test you are given a discussion topic. You have 30 seconds to look at the prompt card, an example of which is below, and then about 3 minutes to discuss the topic with your partner. After that the examiner will ask you more questions related to the topic. For two candidates Program for New Staff Your company has found that ineffective time management is one of the major problem areas throughout the workforce. You have been asked to put forward some suggestions for improving the situation. Discuss and decide together: ● why poor time management can become a major problem in companies. ● what procedures could be adopted to ensure that time is managed effectively.正确答案： 【参考范例】
A: Hi. As you know, these days our company is sort of out of control. Don’t you think so?
B: Yeah. Everything appears to be in chaos here in our company. And that clearly has resulted from poor time management.
A: You mean poor time management has led to all these problems? Why?
B: When time is not well planned within a company, they usually do not distribute blocks of time to specified tasks. They do not have a definite clue of when they should finish a certain task.
A: I think they often ignore the ordering of priorities. I mean certain tasks need our prior attention. But in the company every task is treated equally, even though it is a very important task.
B: That’s the point. So time should be planned in line with the significance of the tasks we need to deal with.
A: So what do you think we can do in order to manage time effectively here in our company?
B: You mean what means we can adopt?
A: Sure. That’s what our boss is asking us to do, right?
B: Right. I think we’ve got a lot to do. First, we should make all the staff members aware of the importance of effective time management to our company.
A: Yes, I think instruction in time management will be useful for them, especially those in supervisory positions.
B: Great. Perhaps we can run a few training courses for them. If necessary, we may invite some professionals from outside to help us.
A: Another thing we can do is to make all the managers, or even every employee, think of a job description of their own. Only in this way, can they be pretty sure about what they are accountable for and what they are not.
B: Yes, that’s a good idea. And I think, the top managers of our company should make a set of rules with regard to what sort of jobs should be given priority to. In this way, we can confirm that significant tasks are handled first.
A: Good idea. So in conclusion, our company should run a few training courses, and every employee should write down a job description of their own.
B: And rules should be made about what sort of job should be given priority to.解析： 暂无解析 -
第23题：
问答题Practice 5Directions: For this part, you are allowed 30 minutes to write an essay commenting on the remark “Is Space Worth Exploring?” You can cite examples to illustrate your point. You should write at least 150 words but no more than 200 words.正确答案：
【范文】
Is Space Worth Exploring? With the development of science and technology, space exploration has greatly advanced. We could watch the exciting news from TV and read the latest achievement in this field almost every day. As human beings, we are so proud of our work.
Yet, not everyone has the same attitude towards this issue. Some people think we could use the money and resources to find out ways to relieve the suffering of the earth’s starving millions. It has also been felt that the space might lead to the development of space weapon, which may cause the destruction of earth. Despite these disadvantages and potential dangers, the advantages are far greater. Our daily life cannot be without the results of the space science. We use satellites for communication, weather forecast and oil exploration. Some problems may be solved with further exploration. For instance, with the success of space shuttles and the feasibility of living on other planets, we may solve the population problem on earth. Space projects will also enable us to find new sources of energy to solve the energy problem and discover new chemical elements to cure some incurable diseases.
So in my opinion, space exploration contributes a lot to the improvement of the quality of human life. We will have better life with the advances of the space exploration.解析： 暂无解析 -
第24题：
问答题Practice 2 You should spend about 40 minutes on this task. Write about the following topic: Some people think that the detailed criminal description on newspaper and TV has bad influences, so this kind of information should be restricted on the media. To what extent do you agree or disagree? You should write at least 250 words.正确答案： 【参考范文】
Whenever we turn on TV or read a newspaper, more often than not we can read a lengthy description of atrocious crime, which has become so-called features of modern media. I, as one of common readers, advocate the proposal that such reports should be strictly controlled, if no abolished.
Alarmingly, those criminal descriptions wield adverse influence on audience, especially fragile youngsters. Due to vulnerable mentality and lack of ample experience, upon contacting violent programmes, those kids are tempted to follow suit, thus breaking the law and such juvenile delinquencies are too often to be ignored. If this trend is out of control, then more teenagers will fall victim to those evil reports.
Moreover, numerous would-be criminals can learn skills of committing crimes from similar cases so the police find it more formidable to crack down on crimes efficiently. Although the original purpose of crime description is to warn people against offenses and teach them valuable lessons, the fact is that there, indeed, exists a discrepancy between what is desired and what is achieved. The latest research reveals that some habitual law-breakers have access to criminal skills and even the police’s detective methods from TV programmes and newspaper stories about crimes. By contrast, if we restrict strictly the programmes of tackling criminal cases, the ways employed by the police to combat crimes will be kept as the top secret, and it is out of the question to be disclosed to the public, especially those potential offenders.
Granted, criminal content, which is not a usual experience for commons, can enhance the TV rating substantially. Satisfying people’s curiosity and adding varieties to choices, those programmes can always attract more audience. As for me, however, the overwhelming detriments have overshadowed whatever benefits.
Overall, no matter what excuse media can find for detailed criminal description, there should be a strict regulation to limit such broadcasting. Government and relevant organizations should cooperate fully, guaranteeing healthier circumstances.解析： 暂无解析