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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 collisio

题目
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.

相似考题

1.On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)A. The destination host sends a request to the source for retransmission.B. The jam signal indicates that the collision has been cleared.C. The hosts will attempt to resume transmission after a time delay has expired.D. An electrical pulse indicates that the collision has cleared.E. The router on the segment will signal that the collision has cleared.F. The hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.

2.●Let us now see how randomization is done when a collision occurs.After a(71),time is divided into discrete slots whose length is equal to the worst-case round-trip propagation time on the ether(2τ). To accommodate the longest path allowed by Ethernet, the slot time has been set t0 512 bit times, or 51.2μsec.After the first collision, each station waits either 0 or l (72) times before trying again. If two stations collide and each one picks the same random number, they will collide again. After the second collision, each one picks either 0,1,2,or 3 at random and waits that number of slot times. If a third collision occurs (the probability of this happening is 0.25), then the next time the number of slots to wait is chosen at (73) from the interval 0 to 23-1.In general, after i collisions,a random number between 0 and 2i-1 is chosen, and that number of slots is skipped. However, after ten collisions have been reached, the randomization (74) is frozen at a maximum of 1023 slots. After 16 collisions, the controller throws in the towel and reports failure back to the computer. Further recoveryis up to (75 )layers.(71) A．datagramB．collisionc．connectionD． service(72) A．slotB．switchC．processD．fire(73) A．restB．randomC．onceD．odds(74) A．unicastB．multicastC．broadcastD．interval(75) A．localB．nextC．higherD．lower

3.Which two statements describe the operation of the CSMA/CD access method, which is in use on the Ezonexam network? (Choose two)A. After a collision, the station that detected the collision has first priority to resend the lost data.B. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.C. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.D. The use of hubs to enlarge the size of collision domains is one way to improve the operation of the CSMA/CD access method.E. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.F. After a collision, all stations involved run an identical backoff algorithm and then synchronize with each other prior to transmitting data.

4.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.

更多“Two stations on a LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network?() ”相关问题

  • 第1题：

    A local-area network(LAN)is a communications network that(125)a variety of devices and provides a(126)for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster(丛)of buildings. The LAN is usually owned by the same organization that owns the(127)devices. The internal data rate of LAN is at least several Mb/s.The basic of LAN communication is broadcasting. At each station, there is a transmitter/receiver that communicates over a(128)shared, By other stations. A transmission from any one station is(129)to and received by all other stations.

    A．broadcast

    B．cable

    C．control

    D．interconnects

    E．internet


    正确答案：D

  • 第2题：

    A BGP connection is being established.What happens if the local router and the peer router do NOT have the same hold－time value configured?()

    A. The BGP session does not establish.

    B. The hold time is assumed to be infinite.

    C. The larger of the two hold-time values is used.

    D. The smaller of the two hold-time values is used.


    参考答案：D

  • 第3题：

    Refer to the exhibit.What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN?()

    A.The number of collision domains would decrease.

    B.The number of collision domains would increase.

    C.The number of broadcast domains would remain the same.

    D.The number of collision domains would remain the same.

    E. The number of broadcast domains would increase.


    参考答案：B, C

  • 第4题：

    What is meant by the term“radio silence”________．

    A.Stations not directly involved with the on-going distress communications may not transmit on the distress frequency or channel

    B.Stations remaining off the air to safeguard proprietary information

    C.Two three-minute silent periods，at 15 and 45 minutes after the hour，that provide a transmitting“window”for distressed vessels to transmit distress alerts using J3E

    D.Communications on a distress frequency or channel is banned for 24 hours following the cessation of the distress traffic


    正确答案：A

  • 第5题：

    On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously,resulting in a collision. Following this collision, what will the hosts do?（）

    • A、The destination host sends a request to the source for retransmission.
    • B、The jam signal indicates that the collision has been cleared.
    • C、The hosts will attempt to resume transmission after a time delay has expired.
    • D、An electrical pulse indicates that the collision has cleared.
    • E、The router on the segment will signal that the collision has cleared.
    • F、The hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.

    正确答案:C

  • 第6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.

    正确答案:B,D,E

  • 第7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8题：

    多选题
    What happens when you enable QoS bandwidth detection? （）(Choose two.)
    A

    Circuit speed is reduced by 2% for overhead.

    B

    WAN speed can be configured to the LAN speed.

    C

    Bandwidth is adjusted based on minimum and maximum settings

    D

    WAN bandwidth is detected based on acknowledgement of metapackets.


    正确答案： C,A
    解析： 暂无解析

  • 第9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10题：

    多选题
    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.


    正确答案： A,E
    解析： 暂无解析

  • 第11题：

    多选题
    Which two considerations must you take into account when deploying a Junos Pulse Access Control Service cluster?（）
    A

    State synchronization occurs only through the internal network interface card (NIC)

    B

    Latency of the WAN must be less than 300 ms.

    C

    Authenticating endpoints must be on the same LAN segment.

    D

    Cluster members must use the same hardware platfor


    正确答案： C,A
    解析： 暂无解析

  • 第12题：

    单选题
    At the same time，it is（）for you to signify your acknowledgement of the responsibility for the collision by signing the copies of this letter hereto attached and to return me two copies in due time.
    A

    essential

    B

    important

    C

    good

    D

    a better operation


    正确答案： B
    解析： 暂无解析

  • 第13题：

    Which two considerations must you take into account when deploying a Junos Pulse Access Control Service cluster?()

    A. State synchronization occurs only through the internal network interface card (NIC)

    B. Latency of the WAN must be less than 300 ms.

    C. Authenticating endpoints must be on the same LAN segment.

    D. Cluster members must use the same hardware platfor


    参考答案：A, D

  • 第14题：

    In an Ethernet network, under what two scenarios can devices transmit?()

    A. when they receive a special token

    B. when there is a carrier

    C. when they detect no other devices are sending

    D. when the medium is idle

    E. when the server grants access


    参考答案：C, D

  • 第15题：

    At the same time，it is ______ for you to signify your acknowledgement of the responsibility for the collision by signing the copies of this letter hereto attached and to return me two copies in due time.

    A.essential

    B.important

    C.good

    D.a better operation


    正确答案：A

  • 第16题：

    In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （ ） chance of collision because two or more stations may find the line （请作答此空） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （ ） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （ ） amount of time and then senses the line again.The nonpersistent approach （ ） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.

    A.idle
    B.busy
    C.useful
    D.unusable

    答案：A
    解析：

  • 第17题：

    What is the point of using a combiner? （）

    • A、Up to four sites can share one PCM link.
    • B、Several TRXs can share one antenna system.
    • C、The mobile can listen to two base stations at the same time.
    • D、Only one base station is needed per site.
    • E、Sending and transmitting can be performed from the same antenna.

    正确答案:B

  • 第18题：

    In an Ethernet network, under what two scenarios can devices transmit?（）

    • A、when they receive a special token
    • B、when there is a carrier
    • C、when they detect no other devices are sending
    • D、when the medium is idle
    • E、when the server grants access

    正确答案:C,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
    What happens when you enable QoS bandwidth detection? （）(Choose two.)
    A

    Circuit speed is reduced by 2% for overhead.

    B

    WAN speed can be configured to the LAN speed.

    C

    Bandwidth is adjusted based on minimum and maximum settings.

    D

    WAN bandwidth is detected based on acknowledgement of metapackets.


    正确答案： C,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 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
    解析： 暂无解析

  • 第22题：

    单选题
    A BGP connection is being established.What happens if the local router and the peer router do NOT have the same hold-time value configured?（）
    A

    The BGP session does not establish.

    B

    The hold time is assumed to be infinite.

    C

    The larger of the two hold-time values is used.

    D

    The smaller of the two hold-time values is used.


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously,resulting in a collision. Following this collision, what will the hosts do?（）
    A

    The destination host sends a request to the source for retransmission.

    B

    The jam signal indicates that the collision has been cleared.

    C

    The hosts will attempt to resume transmission after a time delay has expired.

    D

    An electrical pulse indicates that the collision has cleared.

    E

    The router on the segment will signal that the collision has cleared.

    F

    The hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.


    正确答案： C
    解析： 暂无解析

  • 第24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

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