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Collision冲突
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考题
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? (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.
考题
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.
考题
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.
考题
A link light on a switch is an example of which of the following Ethernet properties?()
A. Collision detectionB. Multiple access pointsC. Carrier senseD. Collision avoidance
考题
Determining when to retransmit frames is an example of which of the following Ethernet properties?()
A. Carrier senseB. Collision detectionC. Multiple access pointsD. Collision avoidance
考题
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.
考题
Which of the following statements describe the network shown in the graphic?()
A. There are two broadcast domains in the network.B. There are four broadcast domains in the network.C. There are six broadcast domains in the network.D. There are four collision domains in the network.E. There are five collision domains in the network.F. There are seven collision domains in the network.
考题
TCAS的英文全称为（）。A、Traffic alert and Collision Advoidance SystemB、Traffic Collision and Alert SystemC、Traffic Control and ServiceD、Traffic Condition and Surveillance
考题
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.
考题
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 switchB、If a hub is used, the collision domain is limited to each device and the hubC、If a hub is used, the collision domain includes all devices connected to the hubD、If a switch is used, the collision domain includes all devices connected to the switch
考题
遇险性质包括（）。A、Undesg，Disstress，Fire，Flood，Collision，Ground，Listing，Singking，Adrift，AbandonB、Undesg，Disstress，Fire，Flood，Collision，Ground，Listing，Singking，Adrift，SARTC、Undesg，Disstress，Fire，Flood，Collision，Ground，Listing，Singking，Adrift，EGCD、Undesg，Disstress，Fire，Flood，Collision，Ground，Listing，Singking，Adrift
考题
A link light on a switch is an example of which of the following Ethernet properties?（）A、Collision detectionB、Multiple access pointsC、Carrier senseD、Collision avoidance
考题
Determining when to retransmit frames is an example of which of the following Ethernet properties?（）A、Carrier senseB、Collision detectionC、Multiple access pointsD、Collision avoidance
考题
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.
考题
Which two statements are true regarding an Ethernet collision domain?（）A、The likelihood of collisions occurring increases when a switch is used.B、The likelihood of collisions occurring increases when a hub is used.C、If a hub is used, the collision domain is limited to each device and the hub.D、If a switch is used, the collision domain is limited to each device and the switch.
考题
Which statement is true regarding an Ethernet collision domain?（）A、If a router is used, the collision domain includes all devices connected to the routerB、If a hub is used, the colision domain is limited to each device and the hubC、If a switch is used, the collision domain is limited to each device and the switchD、If a bridge is used, the collision domain includes all devices connected to the bridge
考题
多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switch.BIf a hub is used, the collision domain is limited to each device and the hub.CIf a hub is used, the collision domain includes all devices connected to the hub.DIf a switch is used, the collision domain includes all devices connected to the switch.
考题
单选题The Chinese vessel was（）a foreign vessel.A
in collision betweenB
in collision withC
collision ainstD
collision with
考题
多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switchBIf a hub is used, the collision domain is limited to each device and the hubCIf a hub is used, the collision domain includes all devices connected to the hubDIf a switch is used, the collision domain includes all devices connected to the switch
考题
单选题Which statement is true regarding an Ethernet collision domain?（）A
If a router is used, the collision domain includes all devices connected to the routerB
If a hub is used, the colision domain is limited to each device and the hubC
If a switch is used, the collision domain is limited to each device and the switchD
If a bridge is used, the collision domain includes all devices connected to the bridge
考题
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.
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