JN0-101
多选题Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）ABoth devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmitBThe device with the lowest MAC a
题目
Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit
The device with the lowest MAC address is permitted to retrannsmit first
The device with the lowest MAC address sends a jam signal to notify all other devices of the collision
Both devices send a jam signal to notify all other devices of the collision
参考答案和解析
相似问题和答案
第1题：
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2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3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.
解析：Explanation:
When a host on an Ethernet LAN has information to send, the following steps are taken:
1. A device with a frame. to send listens until Ethernet is not busy.
2. When the Ethernet is not busy, the sender begins sending the frame.
3. The sender listens to make sure that no collision occurred.
4. Once the senders hear the collision, they each send a jamming signal, to ensure that all stations recognize the collision.
5. After the jamming is complete, each sender randomizes a timer and waits that long.
6. When each timer expires, the process starts over with step 1.
Incorrect Answers:
A. Only the stations involved in the collision stop transmitting for a short time, not all stations on the LAN.
C. No priority is given to any stations once a collision has occurred.
第4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：
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7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8题：
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.
第9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10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