UC知道病毒问题2
来源：百度知道 编辑：UC知道 时间：2024/06/18 17:37:41
Collisions
When two or more computers try to access the LAN at the same time, a collision occurs.
Two primary methods of prevention:
Token Passing
Transmission Control Protocol (TCP)
Token Passing
This occurs primarily in a network that does not have a router or switch. So it occurs in a star network that has a HUB, a ring network and in a star network.
There is only one token on the network.
The order of the nodes in which the token is passed is predetermined.
A node will receive the token, transmit data, and then pass the token to the next node. While a node has the token, all other nodes are receiving data (NOT TRANSMITTING).
Transmission Control Protocol (TCP)
Each of the data that is transmitted over the LAN has an attached Error Detection Section called a checksum.
The checksum is a value based on the transmitted data. If the data collided with other data, then the checksum value will not correspond wit
When two or more computers try to access the LAN at the same time, a collision occurs.
Two primary methods of prevention:
Token Passing
Transmission Control Protocol (TCP)
Token Passing
This occurs primarily in a network that does not have a router or switch. So it occurs in a star network that has a HUB, a ring network and in a star network.
There is only one token on the network.
The order of the nodes in which the token is passed is predetermined.
A node will receive the token, transmit data, and then pass the token to the next node. While a node has the token, all other nodes are receiving data (NOT TRANSMITTING).
Transmission Control Protocol (TCP)
Each of the data that is transmitted over the LAN has an attached Error Detection Section called a checksum.
The checksum is a value based on the transmitted data. If the data collided with other data, then the checksum value will not correspond wit
这个不是病毒的问题
应该是网络连接、网络传输的问题：
碰撞
当两个或更多的计算机试图访问局域网在同一时间内，发生碰撞。
两个主要的预防方法：
令牌传递
传输控制协议（ TCP ）
令牌传递
出现这种情况，主要是在网络中没有路由器或交换机。所以它出现在星网，有一个中心，环网，并在一个星形网。
是不是只有一个令牌对网络。
该命令的节点，其中道理是通过是预先确定的。
一个节点将接收到令牌，传输数据，然后通过令牌到下一个节点。而一个节点具有象征性，所有其他节点接收数据（不转发） 。
传输控制协议（ TCP ）
每一项数据，它传输的局域网有一个附加误差检测节称为校验。
该校验和是一种价值的基础上，传输数据。如果数据发生碰撞与其他资料时，则校验值将不会符合数据发送。等接收节点将派出转播。
每个节点会检查，看看是否LAN电缆是不转递之前在传输数据。
如果LAN电缆传输，然后节点将接收到的数据。如果所收到的数据，是不是该节点，然后这些数据被丢弃。然后节点将再次考验LAN电缆检查，如果是转递。
这些行动所处的分数超过一秒钟！
明星拓扑
网络采用星型，如果所有的电脑附加到一个中心点，这是通常路由器/集线器/交换机。
如果一台计算机是网络断开，网络仍然能够传送数据。
将用户添加，只需运行电缆由中央点到节点-网络中的计算机。
每个节点对网络需要一个电缆。
总线拓扑
整个网络采用总线结构连接所有的计算机和设备对网络由菊花链。这就是说每台电脑有两个电缆重视它，这两条电缆，每到另一个网络中的计算机。在两端的网络，特别是连接器所附的，所谓的终端。
一个限制是：它是难以再增加节点到网络上。
另一个限制是，如果有违反，在网络某处时，整个网络的离线。
这个网络需要较少的电缆比星形网。
LZ哪国人？