How often are IS－IS Hello packets transmitted?()A. 3 seconds for DIS; 9 seconds for non-DISB. 9 seconds for DIS; 3 seconds for non-DISC. 10 seconds for DIS; 3 seconds for non-DISD. 10 seconds for all routers

题目
How often are IS－IS Hello packets transmitted?()

A. 3 seconds for DIS; 9 seconds for non-DIS

B. 9 seconds for DIS; 3 seconds for non-DIS

C. 10 seconds for DIS; 3 seconds for non-DIS

D. 10 seconds for all routers

相似考题

1.Some diseases are _____ by certain water animals. A) transplanted B) transformed C) transported D) transmitted

2.— Hello, Sally. How’s everything? —().A、Good for youB、Oh, I agreeC、That’s rightD、Just so-so

3.Tony, a student ( ) from New York, received warm welcome from his new classmates and teacher.A、transformedB、transplantedC、transferredD、transmitted

4.A: Hello, Bob. How's everything? B: That's all right.()

更多“How often are IS－IS Hello packets transmitted?() ”相关问题

  • 第1题：

     At first, the speaker was referring to the problem of pollution in the country, but halfway in her speech, she suddenly _________ to another subject.

    A) committed B) switched

    C) favoured D) transmitted

     

     


    选B

    switch是不及物动词，后接to，表示“转到，转向”；commit意为“犯（罪）”； favor的意思是“赞成”；transmit的意思是“传送，传递”。


    句意：这演讲者开谈该国的污染问题，中间却突然转到了另一个话题。

  • 第2题：

    CCTV programs are _____ by satellite to the remotest areas in the country.

    [A] transferred

    [B] transported

    [C] transformed

    [D] transmitted


    正确答案：D

  • 第3题：

    根据提供的信息和语言素材设计教学方案，用英文作答。
    设计任务：请阅读下面学生信息和语言素材，设计20分钟的英语听说教学方案。教案没有固定格式．但须包含下列要点：
    ·teaching objectives
    ·teaching contents
    ·key and difficult points
    ·major steps and time allocation
    ·activities and justifications
    教学时间：20分钟
    学生概况：某城镇普通中学初中一年级第二学期学生，班级人数40人。多数学生已经达到《义务教育英语课程标准(2011年版)》二级水平。学生课堂参与积极性一般。
    语言素材：
    Conversation 1
    Tom:Hey,Peter．
    Peter:Hi,Tom．
    Tom:How′s the weather down there in Shanghai?
    Peter:It′s cloudy．How′s the weather in Moscow?
    Tom:It′s snowing right now．
    Conversation 2
    Peter:Hi,Aunt Sally．
    Aunt Sally:Hello,Peter．
    Peter:How′s the weather in Boston?
    Aunt Sally:Oh,it′s windy．
    Conversation 3
    Peter:So,how′s the weather in Beijing?
    Julie:It′s sunny．
    Conversation 4
    Peter:Hi,Uncle Bill．
    Uncle Bill:Hello,Peter．
    Peter:How′s the weather in Toronto?
    Uncle Bill:It′s raining,as usual!


    答案：
    解析：
    Teaching Contents:Four dialogues about the weather.Teaching Objectives:
    (1)Knowledge objectives
    ①Students can master some words of weather,such as"cloudy,snow,windy,sunny,rain".
    ②Students can talk about weather with others by using the sentence patterns"How's the weather in...?""It's...".
    (2)Ability objectives
    ①Students can improve their listening abilities through extensive listening and intensive listening.
    ②Students can develop their speaking abilities by role play.
    (3)Emotional objectives
    ①Students are willing to communicate with each other in English.
    ②Students can become interested in using English to describe weather in their daily life.
    Teaching Key Point:
    Students can master the words about weather and sentence patterns"How's the weather in...?""It's...".
    Teaching Difficult Point:
    Students can use new sentence patterns to talk about the weather correctly.
    Major Steps:
    Step 1 Pre-listening(4 minutes)
    Teach these new words by presenting pictures of different weather conditions on the screen,and then,let students?read the words after the tape.
    (Justification:This step can arouse students'interest and pave the way for students'listening activity.)
    Step 2 While-listening(10 minutes)
    Task 1
    Play the tape and ask students to summarize the main idea,then talk about and write down which cities are?mentioned in the listening material.
    For example:Shanghai,Moscow,Boston,Beijing,and Toronto.
    Task 2
    Ask students to listen to the tape for the second time and fill in the following table.



    Task 3
    Ask students to find out the key sentences describing weather.Then let students learn the sentence patterns by?changing the underlined part into the new words.
    E.g.--How's the weather inBeijing?
    --It's sunny.
    (Justification:Through extensive listening,students will grasp the main content of this listening material.Through intensive listening,students will enhance their ability of grasping specific information.)
    Step 3 Post-listening(6 minutes)
    Group work:Role play
    Ask students to do a role play in groups of four.Students act as weather reporters to give weather forecast of?different cities in turn.After 5 minutes,each group will choose a representative to perform it in front of the class.
    For example:
    Good morning,ladies and gentlemen.Here is the weather forecast of our city.It's cloudy tomorrow,and it's?very cold,so you should wear more clothes when you go outside.It has a strong wind in the afternoon,and it will be?raining the day after tomorrow.
    (Justification:With practice,students can not only review the knowledge that they have learned,but also develop?their speaking ability.)
    名师如何巧解题？查看视频解析>>

  • 第4题：

    The coming of the railways in the 1830s _____ our society and economic life.

    (A) transformed (B) transported (C) transferred (D) transmitted

     

     


    选A

    字根trans在四级中着重考的含义是“从一个地方到另一个地方”。

    transform 改革，变革，改变; transport 运输; transfer 转移，移动;

    transmit 传送，播送;疾病的传染，传播; transplant 移植。

     

  • 第5题：

    关于数据封装的顺序()是正确的。

    A.DatA.segments-packets-frames-bits

    B.DatA.packets-segments-frames-bits

    C.DatA.frames-segments-packets-bits

    D.DatA.segments-frames-packets-bits


    参考答案：A

  • 第6题：

    CCTV programs are（ ）by satellite to the remotest areas in the country.

    A.transferred
    B.transported
    C.transformed
    D.transmitted

    答案：D
    解析：
    这组词虽都有前缀trans‐，但词根不同，词义也大不相同；A.transfer转移，指从一处移到另一处，常指升迁，搬迁等；B.transport“运输”，指用火车、船只等交通工具输送人员或货物到达另一地方；C.transform“使变形，使改观”；D.transmit“传送”，强调一种设备或其他媒介物的传导、输送能力。

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