两台交换机相连，要求两个连接端口工作在全双工通信方式下，若端口的通信方式为缺省的 duplexauto ，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是A)duplex full duplex halfB)duplex half duplex fullC)duplex half duplex halfD)duplex full duplex full

题目

两台交换机相连，要求两个连接端口工作在全双工通信方式下，若端口的通信方式为缺省的 duplexauto ，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是

A)duplex full duplex half

B)duplex half duplex full

C)duplex half duplex half

D)duplex full duplex full

相似考题

1.设置Catalyst 6500交换机的3/1至3/24端口为全双工通信方式，正确的配置语句是A．set interface duplex 3/1-3/24 fullBB．set interface duplex 3/1-24 fullC．set port duplex 3/1-3/24 fullD．set port duplex 3/1-24 full

2.（20）两台交换机相连，要求两个端口工作在全双工通信方式下。若端口的通信方式为缺省的duplex auto时，有时会出现大量丢包现象。这时，需要重新配置端口的通信方式，其正确的配置语句是A、duplex full duplex halfB、duplex half duplex fullC、duplex half duplex halfD、duplex full duplex full

3.两台交换机相连，要求两个连接端口工作在全双工通信方式下。若端口的通信方式为默认的duplex auto时，有时会出现大量丢包现象。这时，需要重新配置端口的通信方式。其正确的配置语句是______。A．duplexfull duplexhalfB．duplexhalf duplexfullC．duplexhalf duplexhalfD．duplexfull duplexfull

4.以下哪条命令用来设置QuidwayS3526的e0/10运行在全双工方式()A.full duplexB.duplex onC.setdup lexon fullD.duplex fullE.duplex auto

参考答案和解析
正确答案：D
更多“两台交换机相连，要求两个连接端口工作在全双工通信方式下，若端口的通信方式为缺省的 duplexauto ，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是A)duplex full duplex halfB)duplex half duplex fullC)duplex half duplex halfD)duplex full duplex full”相关问题

  • 第1题：

    You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?

    A．Full-duplex Ethernet consists of a shared cable segment. Half-duplex provides a point-to-point link

    B．Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive

    C．Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth

    D．Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex Ethernet uses a jam signal

    E．None of the above


    正确答案：C

  • 第2题：

    Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)

    A．Ethernet hub ports are preconfigured for full-duplex mode.

    B．The host network card and the switch port must be capable of operating in full-duplex mode.

    C．There are no collisions in full-duplex mode.

    D．In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.

    E．A dedicated switch port is required for each full-duplex node.


    正确答案：BCE
    解析：Explanation:
    Half-duplex Ethernet is defined in the original 802.3 Ethernet and Cisco says you only use one wire pair with a digital signal running in both directions on the wire. It also uses the CSMA/CD protocol to help prevent collisions and to permit retransmitting if a collision does occur. If a hub is attached to a switch, it must operate in half-duplex mode because the end stations must be able to detect collisions.

    Half-duplex Ethernet-typically 10BaseT-is only about 30 to 40 percent efficient as Cisco sees it, because a large 10BaseT network will usually only give you 3- to 4Mbps-at most. Full-duplex Ethernet uses two pairs of wires, instead of one wire pair like half duplex. Also, full duplex uses a point-to-point connection between the transmitter of the transmitting device and the receiver of the receiving device, which means that with full-duplex data transfer, you get a faster data transfer compared to half duplex.

    And because the transmitted data is sent on a different set of wires than the received data, no collisions occur. The reason you don't need to worry about collisions is because now Full-duplex Ethernet is like a freeway with multiple lanes instead of the single-lane road provided by half duplex. Full-duplex Ethernet is supposed to offer 100 percent efficiency in both directions; this means you can get 20Mbps with a 10Mbps Ethernet running full duplex, or 200Mbps for FastEthernet.

  • 第3题：

    将Catalyst 6500交换机第3个模块的端口1～端口8设置为全双工通信方式，正确的配置语句是______。

    A．Switch-PHY-6500(config-if)#duplex full

    B．Switch-PHY-6500(config-if)#duplex 3 1-8 full

    C．Switch-PHY-6500＞(enable) set port duplex 3/1-8 full

    D．Switch-PHY-6500＞(enable) set port duplex 3 1-8 full


    正确答案：C
    解析：在Catalyst 6500交换机的超级用户模式下，命令set port duplex mod/port＞ full | halt＞用于配置相应交换机第“mod”模块相应的端口通信方式。例如，将Catalyst 6500交换机第3模块的端口1～端口8设置为全双工通信方式的配置语句如下：
      switch-PHY-6500＞(enable) set port duplex 3/1-8 full

  • 第4题：

    两台交换机相逢，要求两个连接端口工作在全双工通信方式下，若端口的通信方式为默认的duplexauto时，有时会出现大量丢包现象，这时，需要重新配置端口的通信方式，其正确的配置语句是______。

    A．duplex full duplex half

    B．duplex half duplex full

    C．duplex half duplex half

    D．duplex full duplex full


    正确答案：D
    解析：duplex full表示设置为全双工方式，所以选D。

  • 第5题：

    In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?()

    A.collisions on the full-duplex side; runts on the half-duplex side

    B.collisions on the full-duplex side; collisions on the half-duplex side

    C.collisions on the half-duplex side; framing errors on the full-duplex side

    D.collisions on the half-duplex side; giants on the full-duplex side


    参考答案：C

  • 第6题：

    What are the differences between full－duplex Ethernet and half－duplex Ethernet?()

    A. Half-duplex Ethernet operates in a shared collision domain.

    B. Full-duplex Ethernet has a lower effective throughput.

    C. Half-duplex Ethernet operates in a private collision domain.

    D. Full-duplex Ethernet allows two-way communication.

    E. Half-duplex Ethernet operates in a private broadcast domain.


    参考答案：A, D

  • 第7题：

    在华为的交换机中，通过（）命令可以把端口的双工模式设为自协商.

    • A、duplex full
    • B、duplex half
    • C、duplex auto
    • D、undo duplex

    正确答案:C,D

  • 第8题：

    以下哪条命令？用来设置华为S3526的e0/10运行在全双工方式。（）

    • A、full duplex
    • B、duplex on
    • C、set duplex on full
    • D、duplex full
    • E、duplex auto

    正确答案:D

  • 第9题：

    When you compare the differences between half-duplex and full-duplex Ethernet,which of the following characteristics are exclusive to half-duplex?（）

    • A、Half-duplex Ethernet operates in a shared collision domain.
    • B、Half-duplex Ethernet operates in an exclusive broadcast domain.
    • C、Half-duplex Ethernet has efficient throughput.
    • D、Half-duplex Ethernet has lower effective throughput.
    • E、Half-duplex Ethernet operates in an exclusive collision domain.

    正确答案:A,D

  • 第10题：

    多选题
    Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet?（）
    A

    Full-duplex Ethernet uses CSMA/CD to prevent collisions.

    B

    Half-duplex Ethernet uses a loopback circuit to detect collisions.

    C

    A full-duplex Ethernet card allows 20Mbps for data transmission.

    D

    Full-duplex Ethernet makes use of two pairs of wires for data.

    E

    An Ethernet hub can operate both half and full duplex simultaneously.


    正确答案： D,E
    解析： 暂无解析

  • 第11题：

    单选题
    设置Catalyst 6500交换机的3/1至3/24端口为全双工通信方式，正确的配置语句是（　　）。
    A

    set interface duplex 3/1—3/24 full

    B

    set interface，duplex 3/1—24 full

    C

    set port duplex 3/1—3/24 full

    D

    set port duplex 3/1—24 full


    正确答案： A
    解析：
    Catalyst 6500交换机端口配置的命令格式：set port duplex<mod/port>full

  • 第12题：

    多选题
    When you compare the differences between half-duplex and full-duplex Ethernet,which of the following characteristics are exclusive to half-duplex?（）
    A

    Half-duplex Ethernet operates in a shared collision domain.

    B

    Half-duplex Ethernet operates in an exclusive broadcast domain.

    C

    Half-duplex Ethernet has efficient throughput.

    D

    Half-duplex Ethernet has lower effective throughput.

    E

    Half-duplex Ethernet operates in an exclusive collision domain.


    正确答案： A,B
    解析： 暂无解析

  • 第13题：

    The Ezonexam LAN is upgrading all devices to operate in full duplex. Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?

    A．Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive

    B．Full-duplex Ethernet consists of a shared cable segment. Half-duplex Ethernet provides a point-to-point link

    C．Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth

    D．Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex ethernet uses a jam signal

    E．None of the above


    正确答案：C

  • 第14题：

    将Cisco 6500第4模块第1端口的通信方式设置为半双工，第2～24端口的通信方式设置为全双工，以下交换机的端口配置，正确的是

    A）Switch-6500> (enable) set interface duplex 4/1 half

    Switch-6500> (enable) set interface duplex 4/2-24 full

    B）Switch-6500> (enable) set port 4/1 duplex half

    Switch-6500> (enable) set port 4/2-24 duplex full

    C）Switch-6500> (enable) set port duplex 4/1 half

    Switch-6500> (enable) set port duplex 4/2-4/24 full

    D）Switch-6500> (enable) set port duplex 4/l half

    Switch-6500> (enable) set port duplex 4/2-24 full


    正确答案：D
    D
    解析：设置路由器端口的通信方式。以Cisco 6500交换机为例：
    步骤一：设置第4模块第1端口的通信方式设置为半双工set port 4/1 duplex half
    步骤二：设置第2～24端口的通信方式设置为全双工 set port duplex 4/2-24 full

  • 第15题：

    Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)

    A．Full-duplex Ethernet uses CSMA/CD to prevent collisions.

    B．Half-duplex Ethernet uses a loopback circuit to detect collisions.

    C．A full-duplex Ethernet card allows 20Mbps for data transmission.

    D．Full-duplex Ethernet makes use of two pairs of wires for data.

    E．An Ethernet hub can operate both half and full duplex simultaneously.


    正确答案：BD
    解析：Explanation:
    Half-duplex Ethernet send and receives on the same line, so a loopback needs to be set to detect collisions. Alternatively, full-duple Ethernet doesn't have to because it uses two pairs of wire, one to send and the other to receive. Collisions are not possible on full duplex Ethernet networks.

    Incorrect Answers:
    A. Full duplex uses both pairs of wires, so transmissions are sent on the first pair, and data that is received come in on the other pair. This prevents collisions.

    C. Full duplex allows for data to be sent and received at the same time. It will not double the amount of bandwidth at any given time. The speed of the Ethernet link will remain at 10/100.

    E. Hubs are shared devices and can only support one mode, unlike switches.

  • 第16题：

    将Cise0 6500第4模块第1端口的通信方式设置为半双工，第2-24端口的通信方式设置为全双工，以下交换机的端口配置，正确的是（ ）。

    A.Switch-6500>；（enable）set interface duplex 4/1 halfSwitch-6500>；（enable）set interface duplex 4/2-24 full

    B.Switch-6500>；（enable）set port 4/1 duplex halfSwitch-6500>；（enable）set port 4/2-24 duplex full

    C.Switch-6500>；（enable）set port duplex 4/1 halfSwitch-6500>；（enable）set port duplex 4/2-4/24 full

    D.Switch-6500>；（enable）set port duplex 4/1 halfSwitch-6500>；（enable）set port duplex 4/2-24 full


    正确答案：D
    设置路由器端口的通信方式。以Cisco6500交换机为例：步骤一：设置第4模块第1端口的通信方式设置为半双工setportduplex4/1hag步骤二：设置第2～24端口的通信方式设置为全双工setprotduplex4/2-24full因此D选项正确。

  • 第17题：

    设置以太网端口的双工状态的命令为()。

    A.duplex auto

    B.duplex half

    C.duplex full

    D.duplex manual


    答案：ABC

  • 第18题：

    两台交换机相连，要求两个端口工作在全双工通信方式下。若端口的通信方式为缺省的duplex auto时，有时会出现大量丢包现象。这时，需要重新配置端口的通信方式，其正确的配置语句是

    A.duplex full duplex half

    B.duplex half duplex full

    C.duplex half duplex half

    D.duplex full duplex full


    正确答案：D

  • 第19题：

    Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?（）

    • A、Full-duplex Ethernet consists of a shared cable segment. Half-duplex Ethernet provides a point-to-point link.
    • B、Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex Ethernet uses a jam signal.
    • C、Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth.
    • D、Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive.

    正确答案:C

  • 第20题：

    Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet?（）

    • A、Full-duplex Ethernet uses CSMA/CD to prevent collisions.
    • B、Half-duplex Ethernet uses a loopback circuit to detect collisions.
    • C、A full-duplex Ethernet card allows 20Mbps for data transmission.
    • D、Full-duplex Ethernet makes use of two pairs of wires for data.
    • E、An Ethernet hub can operate both half and full duplex simultaneously.

    正确答案:B,D

  • 第21题：

    In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?（）

    • A、collisions on the full-duplex side; runts on the half-duplex side
    • B、collisions on the full-duplex side; collisions on the half-duplex side
    • C、collisions on the half-duplex side; framing errors on the full-duplex side
    • D、collisions on the half-duplex side; giants on the full-duplex side

    正确答案:C

  • 第22题：

    单选题
    Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?（）
    A

    Full-duplex Ethernet consists of a shared cable segment. Half-duplex Ethernet provides a point-to-point link.

    B

    Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex Ethernet uses a jam signal.

    C

    Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth.

    D

    Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive.


    正确答案： C
    解析： 暂无解析

  • 第23题：

    多选题
    What are the differences between full-duplex Ethernet and half-duplex Ethernet?（）
    A

    Half-duplex Ethernet operates in a shared collision domain.

    B

    Full-duplex Ethernet has a lower effective throughput.

    C

    Half-duplex Ethernet operates in a private collision domain.

    D

    Full-duplex Ethernet allows two-way communication.

    E

    Half-duplex Ethernet operates in a private broadcast domain.


    正确答案： D,E
    解析： 暂无解析

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