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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

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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


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更多“●One ofthe main resposibilities ofICMP is to report (71). Although technology has produced ”相关问题
  • 第1题:

    This report was produced by the Government in () with the chemical industry.

    A、combination

    B、cooperation

    C、work

    D、partnership


    参考答案:B

  • 第2题:

    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 franca

    37. 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 reasons

    38. English became the dominant language in the 20th century_________________________. A). in the USA

    B). because of the increase in American consumer power

    C). 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 Internet

    D). to speak with native Americans

    40. David thinks that__________________________.

    A). it will be easy for another language to become dominant B). English will not always be the dominant language

    C). it will not be easy for another language to become dominant D). English will be the dominant language


    参考答案:36-40 B B C B C

  • 第3题:

    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.HP

    B.Cisco

    C.SUN

    D.Microsoft


    正确答案:D

  • 第4题:

    ● Document outputs are produced on (71) , devices that produce text or images on paper.

    (71)

    A. display and keyboard

    B. mouse and keyboard

    C. scanners and plotters

    D. printers and plotters


    正确答案:D

  • 第5题:

    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

    答案:A
    解析:

  • 第6题:

    Progress has been () in aeroplane design.

    • A、done
    • B、made
    • C、produced

    正确答案:B

  • 第7题:

    Although Australia has a large area,()of the continent is desert or semi-desert.

    • A、one third
    • B、two thirds
    • C、half
    • D、more than half

    正确答案:B

  • 第8题:

    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 off
    • B、Paging space was not mirrored
    • C、The dump space was not mirrored
    • D、The surviving disk was too small

    正确答案:A

  • 第9题:

    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

    A

    B

    B

    C

    C

    D

    D


    正确答案: B
    解析: 暂无解析

  • 第10题:

    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

    sternest

    B

    shrewdest

    C

    nastiest  

    D

    laziest


    正确答案: D
    解析:
    虽然他没有教育背景,但是他是公司里最精明的经营者。而该公司是史密斯先生三年前创建的。Stern严厉的,苛刻的。Shrewd精明的。Nasty肮脏的,下流的。Lazy懒惰的。

  • 第11题:

    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.


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    Although the report was interesting and informative, much of the material was not _____ to the subject assigned.
    A

    pertinent

    B

    perplexing

    C

    permanent

    D

    positive


    正确答案: A
    解析:
    pertinent相关的。perplexing使人困惑的,错综复杂的。permanent永久的。positive肯定的,积极的。

  • 第13题:

    although the united states has produced most commercial films in the 20th century, movies did not originate in america. ()


    参考答案:正确

  • 第14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.


    参考答案:C

  • 第15题:

    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.risk

    B.problem

    C.result

    D.data


    正确答案:A
    风险是一个不确定因素或条件,如果它一旦发生,可能对至少一个项目目标,如项目进度、项目成本、项目范围或项目质量产生负面或正面的影响。选项A是风险,选项B是问题,选项C是结果,选项D是数据。根据项目风险定义,风险包括两方面含义:一是未实现目标;二是不确定性。因此应选择A。

  • 第16题:

    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

    答案:A
    解析:

  • 第17题:

    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

    答案:C
    解析:
    网络工程师

  • 第18题:

    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 style
    • D、One per report style + one more

    正确答案:B

  • 第19题:

    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.

    正确答案:B

  • 第20题:

    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

    Site

    B

    Server

    C

    Domain

    D

    Connection object


    正确答案: A
    解析: 暂无解析

  • 第21题:

    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 fire

    B

    One man report the fire, one man fight the fire, and one man evacuate and secure the area

    C

    One man report the fire, one man fight the fire, and one man act as a safety observer

    D

    All three men fight the fire and report it immediately after it is extinguished


    正确答案: D
    解析: 暂无解析

  • 第22题:

    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

    plans

    B

    cost

    C

    features

    D

    schedules


    正确答案: A
    解析: 暂无解析

  • 第23题:

    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 address

    B

    when one of the tunnel peers wants to force main mode to be used

    C

    when fragmentation of the IKE packet is required between the two peers

    D

    when one of the tunnel peers wants to specify a different phase 1 proposal


    正确答案: D
    解析: 暂无解析