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When IP sends a packet, it receives a confirmation for each packet and, if needed, rebroadcast the packet. This makes it reliable. UDP does not get confirmation. It broadcast each packet only once and assumes that it get to you. This makes it less reliable then IP because it does not check for problems or rebroadcast.
What else can I help you with?
Why is UDP considered unreliable?
Routers Drop a lot of UDP packets
IS TCP is unreliable Protocol?
No TCP a reliable protocol whereas UDP is unreliable.
Features of udp?
provides connectionless, unreliable serviceso UDP faster than TCPadds only checksum and process-to-process addressing to IPused for DNS and NFSused when socket is opened in datagram mode
What protocol uses both TCP and UDP?
DNS does.
Is udp half duplex or full duplex or simplex?
UDP is a protocol and it has no relation to transfer rate. While it is defined and used at the same at the layer of OSI.
Why is UDP considered unreliable?
Routers Drop a lot of UDP packets
IS TCP is unreliable Protocol?
No TCP a reliable protocol whereas UDP is unreliable.
Is Email is udp or tcp?
the u in udp stands for unreliable and since email is important it is sent using tcp through say smtp or pop3
Features of udp?
provides connectionless, unreliable serviceso UDP faster than TCPadds only checksum and process-to-process addressing to IPused for DNS and NFSused when socket is opened in datagram mode
What protocol uses udp?
DNS uses both TCP and UDP, also a lot of online chats use UDP. I think even when you want videos on YouTube UDP is used to deliver video and audio.
What is a fast but unreliable delivery protocol that operates on the Transport layer?
This would be UDP. The User Datagram Protocol. It has no error checking or correction or congestion measures.
What protocol uses both TCP and UDP?
DNS does.
What has port numbers in its header?
both tcp and udp
When is UDP preferred to TCP?
UDP and TCP both are transport layer protocols. UDP is connection less and TCP is connection oriented. UDP is preferred over TCP when large amount data is to be sent like on skype or video conferencing .
What is the main difference between TCP and UDP?
in udp there is no check for error detection as well as the packect has reached to destination or not. where as tcp takes care of all this that's why it is slower than udp.
What is udp format?
UDP protocol is a means of transporting data in an unreliable (but speedy) manner. Packets are sent without regard for listening to see if they arrive. The header of a UDP packet is much smaller than a TCP header because it doesn't have all of the overhead that TCP has, namely, checking for packet receipt, error detection and correction, flow control, etc.
What is the transport function implemented by both TCP and UDP?
IP
