registers
registers
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●Melissa and Love Letter made use of the trust that exists between friends or colleagues.Imagine receiving an (66) from a friend who asks you to open it.This is what happens with Melissa and several other similar email (67) .Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book,previous emails, web pages (68) .As administrators seek to block dangerous email attachments through the recognition of well-known (69) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (70) access to your network.(66) A．attachmentB．packetC．datagramD．message(67) A．virtualB．virusC．wormsD．bacteria(68) A．memoryB．cachesC．portsD．registers(69) A．namesB．cookiesC．softwareD．extensions(70) A．crackerB．userC．customerD．client
Crashed Cars to Text Message for HelpThere is no good place to have a car crash -- but some places are worse than others. In a foreign country, for instance,【51】 to explain via cellphone that you are upside down in a ditch (沟渠) when you cannot speak the local language can fatally (~) delay the arrival of the emergency services.But an answer may be at hand. Researchers funded by the European Commission are beginning tests of a system called E-merge that【52】senses when a ear has crashed and sends a text message, telling emergency services in the local language that the accident has taken place.The system was【53】 by ERTICO, a transport research organization based in Brussels. Belgium. Cars are fitted with a eellphone-sized device attached【54】 the underside of the dashboard (仪表板) which is activated by the same sensor that triggers the airbag in a crash. The device【55】 a cellphone circuit, a GPS positioning unit and a microphone and loudspeaker.It registers the severity of the crash by【56】 the deceleration data from the airbag's sensor. Using GPS information, it works out which country the Car is in, and from this it determines【57】 which language to compose an alert message detailing precise location of the accident.The device then automatically makes a call to the local emergency services【58】. If the car's occupants are conscious, they can communicate with the operator【59】 the speaker and microphone.E-merge also transmits the vehicles make, model, color and license number, and its heading' when it crashed, which in rum indicates on which side of a multi-lane highway it ended up.This【60】 the emergency services find the vehicle as soon as they arrive on the scene. "We can waste a large【61】time searching for an incident, "says Jim Hammond, a(an)【62】in vehicle technology at the Association of Chief Police Officers in the UK. Tests will begin soon with police car fleets in the UK. Trials have already started in Germany, Sweden, Spain, the Netherlands and Italy.In-car systems that summon (召集) the emergency services after a crash have【63】been fitted in some premium cars". ERTICO says that【64】EU states "are willing to fund the necessary infrastructure (基础结构), E--merge could be working by 2008.A study by French car maker Renault" concluded that the system could save up to 6000 of the 40,000 lives lost each year on Europe's roads, and prevent a similar number of serious injuries.The Renault study estimates that fitting E-merge to every car in Europe would eventually save around 150 billion per【65】in terms of reduced costs to health services and insurance companies, and fewer lost working days.(51)A．tryB．triedC．tryingD．having tried
【An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and VLR) and the link to the public switched telephone network (PSTN). Of the units within the cellular network, the BTS provides the direct communication with the mobile phones. There may be a small number of base stations then linked to a base station controller. This unit acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call. The links between the BTS and the BSC may use either land lines of even microwave links. Often the BTS antenna towers also support a small microwave dish antenna used for the link to the BSC. The BSC is often co-located with a BTS. The BSC interfaces with the mobile switching centre. This makes more widespread choices about the routing of calls and interfaces to the land line based PSTN as well as the HLR and VLR.】 From the paragraph above, in a cellular network, the （98） can provide direct communication with a mobile phone, the （99） acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call.（100） can be used to link the BSC with related BTS。A. BSC B. BTS C. MSC D. VLR A. BSC B. BTS C. MSC D. HLR A. Land lines B. Microwave links C. Microwave dish antenna D. Land lines or microwave links
(c) Assuming that Joanne registers for value added tax (VAT) with effect from 1 April 2006:(i) Calculate her income tax (IT) and capital gains tax (CGT) payable for the year of assessment 2005/06.You are not required to calculate any national insurance liabilities in this sub-part. (6 marks)
, the brains of a computer, it contains the ALU, the clock, many registers, the bus interface, and circuitry that makes these pans work together.A．I/O deviceB．CPUC．MemoryD．Operating system
A typical peripheral device has ______ which the processor uses to select the device's internal registers.A．dataB．a controlC．a signalD．an address
What are two benefits of installing Grid Infrastructure software for a stand－alone server before installing and creating an Oracle database?() A. Effectively implements role separationB. Enables you to take advantage of Oracle Managed Files.C. Automatically registers the database with Oracle Restart.D. Helps you to easily upgrade the database from a prior release.E. Enables the Installation of Grid Infrastructure files on block or raw devices.
In recent years, one of the more popular topics for panel discussions at computer conferences and trade(61)has been the "RISC versus CISC" debate.RISC processors feature a small number of instructions that each executes in(62)machine cycle. CISC processors use complex instructions that can take several cycles to execute.The RISC versus CISC debate won't be decided by panel discussion; it will be won in the marketplace. And the deciding factor may have little to do with(63)of instructions and registers and more to do with parallelism.Since their conception, RISC processors have been evolving toward micro parallelism, incorporating parallel-processing features(64)the processor, RISC processors feature pipelining, whereby many instructions can be decoded while one instruction executes. RISC processors, however, are moving toward pipelines for each unit of the processor.CISC processors also employ pipelining. They have many integer instructions that execute in one cycle, but the varying execution times of CISC instructions(65)the effectiveness of parallelism.A．showsB．twoC．numbersD．betweenE．limit
We know a computer is a machine that processes data(stored in main memory)into information, under control of a stored program. We also know that, internally, a computer is a binary machine; thus the data and the program instruictions must be stored in binary form. Characters are represented in(71). Numbers are stored as binary numbers, with each bit's positional value significant. A computer's main memory is divided into bytes, words or both(depending on the system), and each of these basic storage units is assigned an(72). Using this address, the processor can read or write selected bytes or words.The processor consists of a clock, an instruction control unit, an arithmetic and logic unit, and registers. Once a program is stored in main memory, the processor can begin to execute it. During(73), the instruction control unit fetches an instruction from main memory; during(74), the arithmetic and logic unit executes it. Precisely timed electronic pulses generated by the clock drive this basic(75)A．a binary codeB．wordsC．registersD．positional values
A typical peripheral device has an address which the processor uses to select the device's internal(74)．A．dataB．controlsC．signalsD．registers
What is the purpose of IGMP in a multicast implementation?() A. it is not used in multicastB. it determines the virtual address group for a multicast destinationC. it dynamically registers individual hosts in a multicast group on a specific LAND. it is used on WAN connections to determine the maximum bandwidth of a connectionE. it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow
The examples given for the first kind are________．A．whistles and sirensB．doorbells and telephone bellsC．church bells and telephone bellsD．typewriters and cash registers
共用题干The Weight ExperimentNicola Walters has been taking part in experiments in Scotland to discover why humans gain and lose weight. Being locked in a small room called a“calorimeter”（热量测量室）is one way to find out.1. The signs above the two rooms read simply“Chamber One”and“Chamber Two”.These are the calorimeters:4m by 2m white-walled rooms where human volunteers are locked up in the name of science .Outside these rooms another sign reads“Please do not enter work in progress” and in front of the rooms advanced machinery registers every move the volunteers make.Each day,meals measured to the last gram are passed through a hole in the wall of the calorimeter to the resident volunteer.2. Nicola Walters is one of twenty volunteers who,over the past eight months,have spent varying periods inside the calorimeter. Tall and slim,Nicola does not have a weight problem,but thought the strict diet might help with her training and fitness programme.As a self-employed community dance worker,she was able to fit the experiment in around her work .She saw an advert for volun- teers at her local gym and as she is interested in the whole area of diet and exercise,she thought she would help out.3. The experiment on Nicola involved her spending one day on a fixed diet at home and the next in the room.This sequence was repeated four times over six weeks.She arrived at the calorimeter at8:30 am on each of the four mornings and from then on everything she ate or drank was carefully measured.Her every move was noted too,her daily exercise routine,timed to the last second.At regular intervals,after eating,she filled in forms about how hungry she felt and samples were taken for analysis.4. The scientists help volunteers impose a kind of order on the long days they face in the room. “The first time,I only took one video and a book,but it was OK because I watched TV the rest of the time,”says Nicola. And twice a day she used the exercise bike. She pedaled（踩踏板） for half an hour,watched by researchers to make sure she didn't go too fast. 5. It seems that some foods encourage you to eat more,while others satisfy you quickly.Volun- teers are already showing that high-fat diets are less likely to make you feel full.Believing that they may now know what encourages people to overeat,the researchers are about to start testing a high-protein weight-loss diet. Volunteers are required and Nicola has signed up for further ses- slons。 Volunteers have to get prepared for the time in the calorimeter______.A: the volunteers doB: because she does not have a weight problemC: because the life there can be very boringD: make people overeatE: because she was her own bossF: after passing a high-protein test
在计算机系统的存储层次结构中，能被CPU中的计算单元和控制单元以最快速度来使用的是（ ）。A.高速缓存（Cache）B.主存储器（DRAM）C.闪存（FLASH Memory）D.寄存器（Registers）
共用题干AuctionsAuctions are public sales of goods,conducted by an officially approved auctioneer. He or she asks the assembled crowd in the auction-room to make offers,or"bids",for the various items on sale.He encourages buyers to bid higher figures,and finally names the highest bidder as the buyer of the goods.This is called"knocking down"the goods,for the bidding ends when the auctioneer bangs a small hammer on a table at which he stands.This is often set on a raised platform called a rostrum.The ancient Romans probably invented sales by auction,and the English word comes from the Latin auction,meaning"increase".The Romans usually sold in this way the spoils taken in war; these sales were called"sbu hasta",meaning"under the spear",a spear being stuck in the ground as a signal for a crowd to gather. In the eighteenth and nineteenth centuries goods were often sold "by the candle",a short candle was lit by the auctioneer;and bids could be made while it stayed alight.An auction is usually advertised beforehand with full particulars of the articles to be sold and where and when they can be viewed by possible buyers.If the advertisement cannot give full details, catalogues are printed,and each group of goods to be sold together,called a"lot",is usually given a number. The auctioneer need not begin with Lot 1 and continue in numerical order. He may wait until he registers the fact that certain dealers are in the room and then produce the lots they are likely to be interested in.The auctioneer's services are paid for in the form of a percentage of the price the goods are sold for. The auctioneer therefore has a direct interest in pushing up the bidding as high as possible.Practically all goods whose qualities vary are sold by auction.Among these are coffee,hides, skins,wool,tea,cocoa,furs,spices,fruit and vegetables and wines.Auction sales are also usual for land and property,antique,furniture,pictures,rare books,old china and similar works of art. The auction rooms at Christie's and Sotheby's in London and New York are world famous.The auctioneer may decide to sell the"lots"out of order.A:Right B:Wrong C:Not mentioned
What is the purpose of IGMP in a multicast implementation？（）A、 it is not used in multicastB、 it determines the virtual address group for a multicast destinationC、 it dynamically registers individual hosts in a multicast group on a specific LAND、 it is used on WAN connections to determine the maximum bandwidth of a connectionE、 it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow
You work as a database administrator for Supportcenter.cn. You are working on Oracle Database 10g. To forward client connections to an instance， the listener must know information such as the name of the instance and where the instance’s ORACLE_HOME is located. How does the listener get this information？（）A、It gets it from the parameter file.B、The listener prompts for details on startup.C、The listener gathers information from the control file.D、The instance automatically registers with the default listener.E、The listener gets this information through thelistener.orafile.
An administrator is adding additional memory into a server that registers 1GB of memory in the OS and notices that the system has 2GB of memory physically installed； however， the server only shows 1GB of memory during POST. Which of the following is the MOST likely reason for this？（）A、 The OS does not support more than 1GB of memory.B、 The system memory has different manufacture dates.C、 Two of the memory sticks are defective.D、 The server is using memory interleaving.
Click the Exhibit button and examine the diagram， which illustrates the components performing tasks within an Oracle Shared Sever environment. Which task is being performed by component 4？（）A、The PMON process registers the request in the response queue.B、A shared sever places the process request in the response queue.C、A request within the request queue is processed by an idle shared server process.D、A dispatcher assigns a request from the request queue to and idle shared server process.
With dynamic service registration， which process registers instance information with the listener？（）A、SMONB、PMONC、shared serverD、dedicated server
问答题Practice 2Thoughts in Westminster Abbey When I am in a serious humour, I very often walk by myself in Westminster Abbey; where the gloominess of the place, and the use which it is applied, with the solemnity of the building, and the condition of the people who lie in it, are apt to fill the mind with a kind of melancholy, or rather thoughtfulness, that is not disagreeable. I yesterday passed a whole afternoon in the churchyard, the cloisters, and the church, amusing myself with the tombstones and inscriptions that I met with in those several regions of the dead. Most of them recorded nothing else of the buried person, but that he was born upon one day, and died upon another：the whole history of his life being comprehended in those two circumstances, that are common to all mankind. I could not but look upon these registers of existence, whether of brass or marble, as a kind of satire upon the departed persons；who had left no other memorial of them, but that they were born and that they died. They put me in mind of several persons mentioned in the battles of heroic poems, who have sounding names given them, for no other reason but that they may be killed, and are celebrated for nothing but being knocked on the head. The life of these men is finely described in holy writ by ‘the path of an arrow’, which is immediately closed up and lost. Upon my going into the church, I entertained myself with the digging of a grave；and saw in every shovelful of it that was thrown up, the fragment of a bone or skull intermixt with a kind of fresh mouldering earth, that some time or other had a place in the composition of a human body. Upon this I began to consider with myself what innumerable multitudes of people lay confused together under the pavement of that ancient cathedral；how men and women, friends and enemies, priests and soldiers, monks and prebendaries, were crumbled amongst one another, and blended together in the same common mass；how beauty, strength, and youth, with old age, weakness and deformity, lay undistinguished in the same promiscuous heap of matter.
单选题What is the purpose of IGMP in a multicast implementation？（）A it is not used in multicastB it determines the virtual address group for a multicast destinationC it dynamically registers individual hosts in a multicast group on a specific LAND it is used on WAN connections to determine the maximum bandwidth of a connectionE it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow
单选题Passage2The way people work has changed. The increasing use of technology presents new and continual challenges to small and large businesses，employees and managers，teachers and students.Everyone，it seems，is being affected by the technological revolution. Store clerks，for example，now use increasingly complex computerized cash registers，while university professors must learn to adapt their teaching skills in order to lead distance learning course.In today's world，training and learning do not stop when we finish school；they must now continue throughout our working lives. The Hong Kong government conducted a survey on the employment concerns，and training needs of its workforce. For many managers and other professionals the biggest challenge，as well as change，in the workplace，was the increased use of computers and computerized machinery or equipment. The need for experienced employees who could use this kind of equipment rose drastically. Many of those in the workplace at this time experienced changes in job requirements and had to attend job-related training or re-training courses.The changing work environment is also affecting education and how we learn. In Finland, a report on strategies for education and training in the information age discussed the changing roles of both teacher and student. With the increased use of technology and the growth of distance learning, the teacher has become more of a tutor who guides a student, rather than a lecturer. In turn, the student has to take more responsibility for his or her learning in the absence of direct teacher contact. The report also stressed that high school and university students should learn computer skills in order to cope with the demands of the future workplace.The Finnish report also highlighted the need for teacher training, and re-training, and suggested that the salaries and job descriptions of teachers be reviewed because of future demands expected in their jobs. Previously university professors may have held lectures between the weekday hours of 9:00A.M. and 5:00 P.M. in large halls filled with students. Now, they may spend part of their day lecturing larger groups of students on campus, and then conduct afternoon or evening classes online, with students in five different countries.As technologies grow and develop, ongoing training will continue to be necessary. To be successful in the workplace, people will not stop learning when they leave school-lifelong learning will become a way of life.How did the changing work environment change the role of the teacher according to the Finnish report?Athe teacher became more of a tutor rather than a lecturer.Bthe teacher had to learn more strategies for distance teaching.Cthe teacher had to learn how to teach students without direct contact.DThe teacher should learn computer skills to cope with the demands of the future workplace.
问答题Research published in May 1998 by the Department of the Environment, Transport and the Regions (DETR) showed that reducing coastal and river pollution and ensuring a reliable water supply were among the top environmental priorities for the public. All discharges to water in the UK require the consent of the appropriate regulatory authority. In England and Wales the Environment Agency’s principal method of controlling water pollution is through the regulation of all effluent discharges, including sewage, into groundwater, and inland and coastal waters. The Agency maintains public registers containing information about water quality, discharge consents, authorizations and monitoring. Applicants for consents to discharge have the right of appeal if they are dissatisfied with the Agency’s decision; most of these appeals are dealt with by the Planning Inspectorate, an executive agency of the DETR. In Scotland control is the responsibility of the Scottish Environment Protection Agency (SEPA), and most appeals are dealt with by the Scottish Office. In Northern Ireland the Environment and Heritage Service is responsible for controlling water pollution. In 1997, there were 4,717 cases in England and Wales of discharges exceeding their consented limits, including a number of offences by water companies discharging insufficiently treated sewage. The majority of these breaches did not cause any significant environmental damage. However, the Environment Agency did bring 65 cases to court, of which 61 were successful, resulting in fines ranging from ￡ 440 to ￡ 12,000 and one prison sentence of two months. In Scotland, there were 2,734 pollution incidents in 1997; SEPA seeks prosecution in all significant cases. In 1997 and 1998, the Government introduced statutory Environmental Quality Standards (EQSs) for 33 substances in water. The new regulations give legal force for the first time to standards for some of the most dangerous pollutants found in the aquatic environment. In the UK, 96 percent of the population live in properties connected to a sewer, and sewage treatment works serve over 80 percent of the population. In England and Wales, the water industry is committed to an investment programme of some ￡ 11,000 million over ten years for improvements to water quality. Progressively higher treatment standards for industrial waste effluents and new measures to combat pollution from agriculture are expected to bring further improvements in water quality. In Scotland, responsibility for the provision of all water and sewerage services lies with three Water and Sewerage Authorities, covering the north, east and west of the country.
多选题You work as a database administrator for Certkiller .com. You are working on Oracle Database 10g. To forward client connections to an instance， the listener must know information such as the name of the instance and where the instance’s ORACLE_HOME is located. How does the listener get this information？（）AIt gets it from the parameter file.BThe listener prompts for details on startup.CThe listener gathers information from the control file.DThe instance automatically registers with the default listener.EThe listener gets this information through thelistener.orafile.
名词解释题registers