单播和广播之间的区别

1.单播：
单播是一种信息传输，在有单个发送者和单个接收者参与的情况下使用。因此，简而言之，您可以将其称为一对一映射。例如，一个网络中IP地址为10.1.4.0的设备想要将业务流(数据包)发送到另一个网络中IP地址为20.14.4.2的设备，则单播进入画面。它是通过网络传输数据的最常见形式。

2.广播：
广播传输(一对一)技术，可以分为两种类型：受限广播，直接广播。在广播模式下，传输从一台主机传输到LAN上连接的所有其他主机。桥等设备使用此功能。诸如ARP之类的协议实现了这一点，以便知道主机对应IP地址的MAC地址。 ARP确实将ip地址转换为mac地址。 RARP则相反。

单播和广播之间的区别：

S.No.	Unicast	Broadcast
1.	It has one sender and one receiver.	It has one sender and multiple receivers.
2.	It sends data from one device to single device.	It sent data from one device to all the other devices in a network.
3.	It works on Single Node Topology.	It works on star and bus topology.
4.	It does not scale well for streaming media.	It scale well across large networks.
5.	Multiple unicasting utilizes more bandwidth as compared.	Its bandwidth is wasted.
6.	Web surfing, file transfer is an example of a unicast.	Hub is an example of a broadcast device.
7.	It has one-to-one mapping.	It has one-to-all mapping.