DRAG DROP

Explanation/Reference:
* UDP uses a simple connectionless transmission model with a minimum of protocol mechanism. User datagram protocol (UDP) provides a thinner abstraction layer which only error-checks the datagrams.
Note: Best-effort delivery describes a network service in which the network does not provide any guarantees that data is delivered or that a user is given a guaranteed quality of service level or a certain priority.
* Transmission control protocol (TCP) provides a guaranteed delivery of an octet stream between a pair of hosts to the above layer, internally splitting the stream into packets and resending these when lost or corrupted.
* Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol address (IP address) to a physical machine address (MAC address) that is recognized in the local network.