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●One ofthe main resposibilities ofICMP is to report (71). Although technology has produced increasingly reliable transmission media, errors still exist and must be handled. IP is an (72) protocol. This means that error checking and error control are not a concem ofIP.ICMP was designed, in part, to compensate for this shortcoming. Howerver, ICMP does not _(73) errors, it simply reports them. Error correction is left to the higher-level potocols. Error messages are always sent to the original__(74) because the only information available in the datagram about the route is the source and destination lP addresses. ICMP uses the source IP address to send the error massage to the source ofthe(75) .
(71)
A, numbers
B. functions
C. strings
D. errors
(72)
A. reliable
B. unreliable
C. available
D. unavailable
(73)
A. correct
B. conduct
C. produce
D. connect
(74)
A. user
B. destination
C. source
D. program
(75)
A. datagram
B. frame
C. service
D. protocol
参考答案
更多 “ ●One ofthe main resposibilities ofICMP is to report (71). Although technology has produced increasingly reliable transmission media, errors still exist and must be handled. IP is an (72) protocol. This means that error checking and error control are not a concem ofIP.ICMP was designed, in part, to compensate for this shortcoming. Howerver, ICMP does not _(73) errors, it simply reports them. Error correction is left to the higher-level potocols. Error messages are always sent to the original__(74) because the only information available in the datagram about the route is the source and destination lP addresses. ICMP uses the source IP address to send the error massage to the source ofthe(75) .(71)A, numbersB. functionsC. stringsD. errors(72)A. reliableB. unreliableC. availableD. unavailable(73)A. correctB. conductC. produceD. connect(74)A. userB. destinationC. sourceD. program(75)A. datagramB. frameC. serviceD. protocol ” 相关考题
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● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）A．riskB．problemC．resultD．data
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What is the main idea of the man's speech?A．Everything at State University has changed in the past ten years.B．Although the campus looks the same, some things have changed at State University.C．In spite of the changes on the campus, the commitments of the State University remain the same.D．Everything has stayed the same at State University during the past ten years.
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The main idea of this passage is______.A. one's color preference shows one's characterB. you can brighten your life with wonderful colorsC. psychologists have been studying the meaning of color preferenceD. one's color preference has something to do with his character and colors have effects on human beings
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● Software （71） refers to that the software to meet the specification must be produced.（71）A. testB. supportC. developmentD. process
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This report was produced by the Government in () with the chemical industry.A、combinationB、cooperationC、workD、partnership
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although the united states has produced most commercial films in the 20th century, movies did not originate in america. ()
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Interviewer-------- Why is English so important?David------- Well, English is so important primarily because so many people speak it and use it, so it has now become the lingua franca in the world in a way that we’ve never seen before. We’ve never had a world language of this kind before. So people are learning it not just to be able tocommunicate with native speakers, but also with speakers of other language around world.Interviewer-------And why has it become that dominant language?David------I think the reason for that is actually very complicated, although in the twentieth century, we can just see that it’s the rise of the US military and consumer power. I mean the technology, all the big developments in technology largely came from the US. So all of these developments actually were produced within the English language, and people had to learn English in order to understand them, or to benefit from them. The Internet is only one example of that kind. Once a language has got into that position of dominance, it’s actually very different to shift it. So we could be seeing the emergence of other big languages in the world becoming more important than they have been, like Spanish, but it’s unlikely that they’re going to shift the English from its position of dominance.36. English is important, according to David, __________________________. A). because it has become a world language B). because so many people speak and use it C). because a lot of people are learning it D). because it is the lingua franca37. English has become the dominant language in the world________________________. A). because it has always been the way B). for a reason that is very complicated C). only in the 20th century D). for no reasons38. English became the dominant language in the 20th century_________________________. A). in the USAB). because of the increase in American consumer powerC). because developments in technology came mainly from USA. D). all over the world.39. People had to learn English______________________.A). because developments in technology were made by English speakers B). because they needed to understand the new developments in technology C). to use the InternetD). to speak with native Americans40. David thinks that__________________________.A). it will be easy for another language to become dominant B). English will not always be the dominant languageC). it will not be easy for another language to become dominant D). English will be the dominant language
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Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa > You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）A. An error is returned.B. You are prompted to enter a new value.C. A report is produced that matches the first report produced.D. You are asked whether you want a new value or if you want to run the report based on the previous value.
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ActiveX is the name(66)has given to a set of object-oriented concepts, technologies, and tools. It is important to notice that ActiveX is not a(67)technology, but a brand name, what it's applied to can vary over time. However, the main technology is COM. Used in a network with a(68)and additional support, COM becomes the DCOM. The main object that is created when writing a program to run in the ActiveX environment is a(69), a self-sufficient program that can be run anywher6 in the ActiveX network. This component is known as an "ActiveX control". An ActiveX control is roughly equivalent to a applet. One important difference is that an ActiveX control must be(70)for a specific platform, while an applet is platform-independent.A．HPB．CiscoC．SUND．Microsoft
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Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．A.riskB.problemC.resultD.data
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● Document outputs are produced on （71） , devices that produce text or images on paper.（71）A. display and keyboardB. mouse and keyboardC. scanners and plottersD. printers and plotters
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Digital Signal Processing（DSP）,has emerged as an important technology for modem electronic systems.It is a form of______that is one of the newest and hottest fields,and is considered to be the workhorse of choice for many computational-intensive applications.A.embedded design
B.programming
C.kernel
D.software
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If one has failed to report his or her income tax for quite a few years, he or she may be put in prison.A.Right
B.Wrong
C.Not mentioned
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The TCP protocolis a （71） layer protocol. Each connection connects two TCPs that may be just one physical network apart or located on opposite sides ofthe globe.A.physical
B.network
C.transport
D.application
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You want to create a template to be used as a standard for all company reports, which are many different styles. How many different templates must you have if you plan to use multiple report styles?（）A、Two B、One C、One per report styleD、One per report style + one more
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Although Australia has a large area,（）of the continent is desert or semi-desert.A、one thirdB、two thirdsC、halfD、more than half
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A technician is responsible for overseeing twelve remote offices. There was a report of a power outage at one of the remote offices the night before， and now one of the servers there has not rebootedeven though it was shut down gracefully. The technician was forced to travel two hours just to turn theserver on. Which of the following is the MOST cost effective way to prevent future travel？（）A、 Install a generator onsite.B、 Install a remote management card in the server.C、 Install an uninterruptible power supply （UPS） onsite.D、 Move the server to the main office.
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One of the mirrored disks for the root volume group has failed. Although the logical volumes are mirrored, and the bosboot command was run, the machine will not boot. What is the most probable cause?（）A、Quorum was not turned offB、Paging space was not mirroredC、The dump space was not mirroredD、The surviving disk was too small
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单选题Your company has a main office and 10 branch offices. Each branch office has an Active Directory site that contains one domain controller. Only domain controllers in the main office are configured as Global Catalog servers. You need to deactivate the Universal Group Membership Caching option on the domain controllers in the branch offices. At which level should you deactivate the Universal Group Membership Caching option（）A
SiteB
ServerC
DomainD
Connection object
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单选题ou are developing a fiscal report for a customer. Your customer has a main office in the United States and a satellite office in Mexico. You need to ensure that when users in the satellite office generate the report， the current date is displayed in Mexican Spanish format.Which code segment should you use？（）A
AB
BC
CD
D
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单选题Which of the following statements represents the correct action to take when three crew members discover a fire?（）A
One man report the fire, and the other two men fight the fireB
One man report the fire, one man fight the fire, and one man evacuate and secure the areaC
One man report the fire, one man fight the fire, and one man act as a safety observerD
All three men fight the fire and report it immediately after it is extinguished
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单选题Although he has no education, he is one of the ______ businessmen in the company, which was established by Mr. Smith three years ago.A
sternestB
shrewdestC
nastiest D
laziest
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单选题Documentation of a software package is normally produced for two purposes. One is to explain the (1) ofthe software and describe how to use them. This is known as (2) because it is designed to be read by the user of the software. The other purpose of documentation is to describe the software's internal composition so that the system can be maintained later in its life cycle. Documentation ofthis type is known as ( 3 )
空白（1）处填（）A
plansB
costC
featuresD
schedules
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单选题Examine this statement: SELECT student_id, gpa FROM student_grades WHERE gpa value; You run the statement once, and when prompted you enter a value of 2.0. A report is produced. What happens when you run the statement a second time?（）A
An error is returned.B
You are prompted to enter a new value.C
A report is produced that matches the first report produced.D
You are asked whether you want a new value or if you want to run the report based on the previous value.
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单选题For IKE phase 1 negotiations， when is aggressive mode typically used？（）A
when one of the tunnel peers has a dynamic IP addressB
when one of the tunnel peers wants to force main mode to be usedC
when fragmentation of the IKE packet is required between the two peersD
when one of the tunnel peers wants to specify a different phase 1 proposal
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单选题Although the report was interesting and informative, much of the material was not _____ to the subject assigned.A
pertinentB
perplexingC
permanentD
positive
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