0
flow control
low overhead
connectionless
connection-oriented
sequence and acknowledgements
Wiki User
∙ 11y ago
Wiki User
∙ 14y agolow overhead
connectionless
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What stand for UDP?
This User Datagram Protocol (UDP) is defined to make available a datagram mode of packet-switched computer communication in the environment of an interconnected set of computer networks. This protocol assumes that the Internet Protocol IP is used as the underlying protocol. This protocol provides a procedure for application programs to send messages to other programs with a minimum of protocol mechanism. The protocol is transaction oriented, and delivery and duplicate protection are not guaranteed. Applications requiring ordered reliable delivery of streams of data should use the Transmission Control Protocol TCP. l
Which protocol use the TCP port 445?
Server Message Block (SMB)( Explanation ) When NetBIOS is disabled, SMB runs over TCP/445. Kerberos runs on TCP/User Datagram Protocol (UDP)/88. RPC runs on TCP/135. HTTPS runs on TCP/443.
What are the pieces of communication in UDP called?
UDP, or User Datagram Protocol is a very simple communication protocol. It is a part of the Transport Layer of the OSI model - the same as the well known TCP. UDP is very straight forward, containing very few features. There is no hand shaking, no security, no ordering of packets and very little error detection (if any at all). The structure of a UDP packet is as follows: Bits 0-15: Source Port Number (optional - leave as all zeros if unused) Bits 16-31: Destination Port Number Bits 32-47: The length of the entire UDP datagram (note that the maximum size is 2^16-1) Bits 48-63: The checksum (optional under IPv4 - leave as all zeros if unused) Bits 64-??: The actual data. About the checksum: this is the confusing part about UDP. When a checksum is computed, the UDP software creates a fake header to include in the checksum calculation - but this fake header is not actually transmitted. The structure of this fake header (officially called the "pseudo header") is: For IPv4: Bits 0-31: Source IP address (taken from the IP header) Bits 32-63: Destination IP address (taken from the IP header) Bits 64-71: Reserved - leave as all zeros Bits 72-79: Protocol (taken from the IP header) Bits 80-95: Length (taken from the UDP datagram) Bits 96-??: The UDP datagram described above. For IPv6: Bits 0-127: Source IP address Bits 128-255: Destination IP Address Bits 256-287: Length Bits 288-311: Reserved (leave as all zeros) Bits 312-319: Next header Bits 320-???: The UDP datagram described above NOTES: -this is only the structure of the UDP packet - and does not include the IP header. -Since it is possible for the checksum to end up as 0, the standard dictates that a checksum of zero be changed to 0xFFFF in order not to confuse with a checksum field which is disabled. This is true even under IPv6, where the checksum MUST be used. A checksum field value of zero is an error and the datagram should be discarded. -UDP makes no guarantees that the datagram will arrive, nor does it make any guarantees about the order that the datagram arrives in. If the user wants these features, then these will need to be implemented by the applications using UDP to communicate, or use a different communication protocol such as TCP.
What port does Remote Desktop use Does everything go over port 3389?
Port 3389 is the only port you need to open. Windows will attempt to stream sound through User Datagram Protocol (UDP) first. If no port is available for UDP, sound will stream through a virtual channel in Remote Desktop Protocol, which uses port 3389. http://www.microsoft.com/windowsxp/using/mobility/rdfaq.mspx
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 is Full form of UDP Protocol in CCNA.?
user datagram protocol
What protocol does skype uses?
I believe Skype uses UDP or User Datagram Protocol.
Which protocol is generating segments at the transport layer when using skype?
It is UDP the User Datagram Protocol.
What transport protocol does Skype use?
I believe Skype uses UDP or User Datagram Protocol.
Protocol prepares data for transmission but has no resending capabilities?
UDP. User Datagram Protocol: A protocol that prepares data for transmission but that has no resending capabilities.
What protocol prepares data for transmission but has no resending capability?
UDP. User Datagram Protocol: A protocol that prepares data for transmission but that has no resending capabilities.
What are three unique characteristics of UDP?
• low overhead • no flow control • no error-recovery function
What are the specific port no of tcp and udp?
Port No. for Tranmission Control Protocal (TCP) is 6 Port No. for User Datagram Protocol (UDP) is 17
What stand for UDP?
This User Datagram Protocol (UDP) is defined to make available a datagram mode of packet-switched computer communication in the environment of an interconnected set of computer networks. This protocol assumes that the Internet Protocol IP is used as the underlying protocol. This protocol provides a procedure for application programs to send messages to other programs with a minimum of protocol mechanism. The protocol is transaction oriented, and delivery and duplicate protection are not guaranteed. Applications requiring ordered reliable delivery of streams of data should use the Transmission Control Protocol TCP. l
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.
Which is more efficent than tcp for carrying messages that fit within data package?
Udp(user datagram protocol)
TCP and UDP reside at which layer of the OSI model?
UDP or User Datagram Protocol works on the Transport Layer (layer 4) in the OSI model.
