勾结（Collision）
第1题：
勾结（Collision）
勾结是指一个厂商和同业内其他的厂商签订有关价格、产量和其他事宜的协议。
第2题：
A. Collision detection
B. Multiple access points
C. Carrier sense
D. Collision avoidance
第3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.
第4题：
TCAS的英文全称为（）。
第5题：
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.
第6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.
第7题：
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.
第8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.
第9题：
The basic collision avoidance display presented by CASII is designed for easy interpretation and ______ of possible collision threat situations．
A.Full confirmation
B.Precise appreciation
C.Immediate assessment
D.Timely recognition
第10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?（）