A method of data transmission in which small blocks of data are transmitted rapidly over a channel dedicated to the connection only for the duration of the packet's transmission.
Acknowledged connection-oriented service-the source and destination machines establish a connection before any data are transferred.Each frame sent is numbered and the data link layer guarantees that each frame sent is received. by Dardanello
An upper-layer packet is split into 10 frames, each of which has an 80 percent chance of arriving undamaged. If no error control is done by the data link protocol, how many times must the message be sent on average to get the entire thing through? An connection-oriented service (like TCP) does error checking and requests data to be resend. The packet has several options for error free transport. Connectionless service (think UDP) does not check for undamaged arival. It has a much smaller packet size and is also faster.
Frames are encapsulating packets. The data link layer makes framing and provide this service to the layer above layer "the network layer".
b. Payload that's what the data in a packet is called. The other parts are "header" and "trailer" depending on if they are at the beginning or end of the packet
Data is transmitted in packets. TCP/IP has to respond to each packet. TCP allows for the sending side to know that the packet was received. If there is a malfunction, it can retransmit the packet.
Packet data means internet data service pack.
General packet radio service (GPRS) is a packet oriented mobile data service on the 2G and 3G cellular communication systems global system for mobile communications (GSM).
Here's from the N800 Manual: To use a packet switched data service in a cellular network, such as GPRS, select Packet Data. To use a circuit switched data service in a cellular network, such as HSCSD, select Data Call.
General Packet Radio Service
GPRR is a specific rate ($.01/KB) for GPRS data services provided by AT&T Wireless for Internet access and data transfer. GPRS or General Packet Radio Service (GPRS) is a packet oriented Mobile Data Service available to users of Global System for Mobile Communications (GSM) and IS-136 mobile phones. It provides data rates from 56 up to 114 kbit/s.
General Packet Radio Service. A protocol of Packet Data commonly used in mobile devices
The port number lets IP know which service should be presented a data packet.
By the Port Number.
General Packet Radio Service (GPRS) It is a packet oriented Mobile Data Service available to users of GSM (Global System for Mobile Communications). It has data rate between 56 to 114 kbit/s. GPRS can be used for services such as Wireless Application Protocol (WAP) access, Short Message Service (SMS) , Multimedia Messaging Service (MMS) , and for Internet communication services such as email and World Wide Web access.
The data is well secured when using wireless service. But before transferring the data it must be encrypted for its security. Sometimes there may be data packet loss.
TCP has an acknowledgement technique of checking if data packet is received either at the client or at the server end, this is what makes it a connection oriented network service.whileUDP does not guarantee reliability of ordering or acknowledgement the way TCP does. Datagrams may appear out of order, missing or appear duplicated. This is what makes it a connectionless oriented network service.
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