Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.B、The device with the lowest MAC

题目

Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）

  • A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.
  • B、The device with the lowest MAC address is permitted to retransmit first.
  • C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.
  • D、Both devices send a jam signal to notify all other devices of the collision.
相似考题

1.Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)A．Each device on the Ethernet segment stops transmitting for a short time.B．A jam signal informs all devices that a collision occurred.C．When data transmission resumes, the devices that were involved in the collision have priority to transmit.D．The devices that are involved in the collision stops transmitting for a short time.E．The collision invokes a random back-off algorithm.

2.Which two statements accurately describe a broadcast domain?()A. Broadcast domains require that the participating devices connect to common switches or hubs.B. Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address.C. Broadcast domains require a gateway device such as a router.D. Broadcast domains consist of devices that reside on the same VLAN.

3.With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)A．A device waits for an electronic signal before transmitting.B．A device listens and waits until the media is not busy before transmitting.C．All devices on an Ethernet segment see data that passes on the network medium.D．Only the sender and the receiver devices see data that passes on the network medium.E．Ethernet networks allow you to configured devises with higher transmission priority.

4.Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?()A. Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.B. The device with the lowest MAC address is permitted to retransmit first.C. The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.D. Both devices send a jam signal to notify all other devices of the collision.

更多“Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.B、The device with the lowest MAC ”相关问题

  • 第1题：

    CSMA,although more efficient than ALOHA or slotted ALOHA,still has one glaring inefficiency.If the medium is busy,the station will wait for a random amount of time. When two frames collide,the medium remains （ ） for the duration of transmission of both damaged frames. The use of random delays reduces the probability of（ ）. For（ ）frames,compared to propagation time,the amount of wasted capacity can be considerable.This waste can be reduced if a station continues to listen to the medium while（ ）.The maximum utilization depends on the length of the frame and on the（ ） time; the longer the frames or the shorter the propagation time，the higher the utilization..

    A.convenientB.inconvenientC.usableD.unusableA.transmissionB.collisionsC.transportationD.receptionA.longB.shortC.bigD.smallA.collidingB.forwardingC.transmittingD.receivingA.propagationB.transmissionC.collidingD.listening


    正确答案：D,B,B,C,A

  • 第2题：

    CSMA, although more efficient than ALOHA or slotted ALOHA, still has one glaring inefficiency. If the medium is busy, the station will wait for a random amount of time. When two frames collide, the medium remains （ ） for the duration of transmission of both damaged frames. The use of random delays reduces the probability of（ ）. For（ ）frames, compared to propagation time, the amount of wasted capacity can be considerable. This waste can be reduced if a station continues to listen to the medium while（ ）.The maximum utilization depends on the length of the frame and on the（请作答此空） time; the longer the frames or the shorter the propagation time，the higher the utilization.

    A.propagation
    B.transmission
    C.colliding
    D.listening

    答案：A
    解析：
    尽管CSMA的效率远远大于ALOHA或时隙ALOHA，但它依然存在一个显著低效率的情况。当信道繁忙的时候，站点需要等待一段随机时间。当两个帧发生冲突时，在两个被破坏帧的传输持续时间内，信道仍然无法使用。使用随机时延会降低冲突的可能性。但如果帧的长度相对于传播时间来说很长，那么容量的浪费也是非常可观的。如果站点在传输时还继续监听信道，就能减少这种浪费。最大利用率与帧长和传播时间有关，帧越长或者传播时间越短，利用率就越高。

  • 第3题：

    Two devices on an Ethernet segment sent frames at the same time causing a collision. Which twostatements are true?（）

    • A、Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit
    • B、The device with the lowest MAC address is permitted to retrannsmit first
    • C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision
    • D、Both devices send a jam signal to notify all other devices of the collision

    正确答案:A,D

  • 第4题：

    With regard to Ethernet media access methods, which of the following are true?（）

    • A、A device waits for an electronic signal before transmitting.
    • B、A device listens and waits until the media is not busy before transmitting.
    • C、All devices on an Ethernet segment see data that passes on the network medium.
    • D、Only the sender and the receiver devices see data that passes on the network medium.
    • E、Ethernet networks allow you to configured devises with higher transmission priority.

    正确答案:B,C

  • 第5题：

    Which two statements accurately describe a broadcast domain?（）

    • A、Broadcast domains require that the participating devices connect to common switches or hubs.
    • B、Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address.
    • C、Broadcast domains require a gateway device such as a router.
    • D、Broadcast domains consist of devices that reside on the same VLAN.

    正确答案:B,D

  • 第6题：

    Which two statements are true regarding an Ethernet collision domain?（）

    • A、If a switch is used, the collision domain is limited to each device and the switch.
    • B、If a hub is used, the collision domain is limited to each device and the hub.
    • C、If a hub is used, the collision domain includes all devices connected to the hub.
    • D、If a switch is used, the collision domain includes all devices connected to the switch.

    正确答案:A,C

  • 第7题：

    What are two merits of having a correct time setting on each WX/WXC device in a community? （）(Choose two.)

    • A、Ensures connectivity to the registration server.
    • B、Allows WX devices to synchronize with one another.
    • C、Helps in the maintenance of WX devices using WX CMS.
    • D、Generates accurate and consistent monitoring reports.

    正确答案:C,D

  • 第8题：

    Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）

    • A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.
    • B、The device with the lowest MAC address is permitted to retransmit first.
    • C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.
    • D、Both devices send a jam signal to notify all other devices of the collision.

    正确答案:A,D

  • 第9题：

    多选题
    Which two statements are true regarding an Ethernet collision domain?（）
    A

    If a switch is used, the collision domain is limited to each device and the switch.

    B

    If a hub is used, the collision domain is limited to each device and the hub.

    C

    If a hub is used, the collision domain includes all devices connected to the hub.

    D

    If a switch is used, the collision domain includes all devices connected to the switch.


    正确答案： A,C
    解析： 暂无解析

  • 第10题：

    多选题
    Which two statements are true regarding an Ethernet collision domain?（）
    A

    If a switch is used, the collision domain is limited to each device and the switch

    B

    If a hub is used, the collision domain is limited to each device and the hub

    C

    If a hub is used, the collision domain includes all devices connected to the hub

    D

    If a switch is used, the collision domain includes all devices connected to the switch


    正确答案： D,C
    解析： 暂无解析

  • 第11题：

    多选题
    Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）
    A

    Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit

    B

    The device with the lowest MAC address is permitted to retrannsmit first

    C

    The device with the lowest MAC address sends a jam signal to notify all other devices of the collision

    D

    Both devices send a jam signal to notify all other devices of the collision


    正确答案： C,D
    解析： 暂无解析

  • 第12题：

    多选题
    Two devices on an Ethernet segment sent frames at the same time causing a collision. Which twostatements are true?（）
    A

    Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit

    B

    The device with the lowest MAC address is permitted to retrannsmit first

    C

    The device with the lowest MAC address sends a jam signal to notify all other devices of the collision

    D

    Both devices send a jam signal to notify all other devices of the collision


    正确答案： D,C
    解析： 暂无解析

  • 第13题：

    Two stations on a LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network?()

    A. Each device on the Ethernet segment stops transmitting for a short time.

    B. A jam signal informs all devices that a collision occurred.

    C. When data transmission resumes, the devices that were involved in the collision have priority to transmit.

    D. The devices that are involved in the collision stops transmitting for a short time.

    E. The collision invokes a random back-off algorithm.


    参考答案：B, D, E

  • 第14题：

    CSMA, although more efficient than ALOHA or slotted ALOHA, still has one glaring inefficiency. If the medium is busy, the station will wait for a random amount of time. When two frames collide, the medium remains （请作答此空） for the duration of transmission of both damaged frames. The use of random delays reduces the probability of（ ）. For（ ）frames, compared to propagation time, the amount of wasted capacity can be considerable. This waste can be reduced if a station continues to listen to the medium while（ ）.The maximum utilization depends on the length of the frame and on the（ ） time; the longer the frames or the shorter the propagation time，the higher the utilization.

    A.convenient
    B.inconvenient
    C.usable
    D.unusable

    答案：D
    解析：
    尽管CSMA的效率远远大于ALOHA或时隙ALOHA，但它依然存在一个显著低效率的情况。当信道繁忙的时候，站点需要等待一段随机时间。当两个帧发生冲突时，在两个被破坏帧的传输持续时间内，信道仍然无法使用。使用随机时延会降低冲突的可能性。但如果帧的长度相对于传播时间来说很长，那么容量的浪费也是非常可观的。如果站点在传输时还继续监听信道，就能减少这种浪费。最大利用率与帧长和传播时间有关，帧越长或者传播时间越短，利用率就越高。

  • 第15题：

    Which two statements are true regarding an Ethernet collision domain?（）

    • A、If a switch is used, the collision domain is limited to each device and the switch
    • B、If a hub is used, the collision domain is limited to each device and the hub
    • C、If a hub is used, the collision domain includes all devices connected to the hub
    • D、If a switch is used, the collision domain includes all devices connected to the switch

    正确答案:A,C

  • 第16题：

    Which two statements are correct about Layer 2 broadcast frames?（）

    • A、Layer 2 broadcast frames are processed by all devices on the same VLAN
    • B、Layer 2 broadcast frames are discarded by routers that connect to multiple VLANs
    • C、Layer 2 broadcast frames are relayed by routers to all connected VLANs
    • D、Layer 2 broadcast frames are relayed by switches to devices on the same VLAN

    正确答案:A,D

  • 第17题：

    Which two statements are true regarding high-availability chassis clustering？（）

    • A、A chassis cluster consists of two devices.
    • B、A chassis cluster consists of two or more devices.
    • C、Devices participating in a chassis cluster can be different models.
    • D、Devices participating in a chassis cluster must be the same models

    正确答案:A,D

  • 第18题：

    Which two statements accurately describe a broadcast domain?（）

    • A、Broadcast domains require that the participating devices connect to common switches or hubs
    • B、Broadcast domains consist of devices reachable by frames addressed to the Layer 2 broadcast address
    • C、Broadcast domains require a gateway device such as a router
    • D、Broadcast domains consist of devices that reside on the same VLAN

    正确答案:B,D

  • 第19题：

    Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）

    • A、Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit
    • B、The device with the lowest MAC address is permitted to retrannsmit first
    • C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision
    • D、Both devices send a jam signal to notify all other devices of the collision

    正确答案:A,D

  • 第20题：

    多选题
    With regard to Ethernet media access methods, which of the following are true?（）
    A

    A device waits for an electronic signal before transmitting.

    B

    A device listens and waits until the media is not busy before transmitting.

    C

    All devices on an Ethernet segment see data that passes on the network medium.

    D

    Only the sender and the receiver devices see data that passes on the network medium.

    E

    Ethernet networks allow you to configured devises with higher transmission priority.


    正确答案： D,B
    解析： 暂无解析

  • 第21题：

    多选题
    Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）
    A

    Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.

    B

    The device with the lowest MAC address is permitted to retransmit first.

    C

    The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.

    D

    Both devices send a jam signal to notify all other devices of the collision.


    正确答案： D,A
    解析： 暂无解析

  • 第22题：

    多选题
    Which two statements are true regarding high-availability chassis clustering？（）
    A

    A chassis cluster consists of two devices.

    B

    A chassis cluster consists of two or more devices.

    C

    Devices participating in a chassis cluster can be different models.

    D

    Devices participating in a chassis cluster must be the same models


    正确答案： C,B
    解析： 暂无解析

  • 第23题：

    多选题
    Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）
    A

    Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.

    B

    The device with the lowest MAC address is permitted to retransmit first.

    C

    The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.

    D

    Both devices send a jam signal to notify all other devices of the collision.


    正确答案： B,A
    解析： 暂无解析

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