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What is an IP packet?
An IP packet is a network data packet using Internet Protocol (IP) format.
When more than one application is running on a server how does IP know which service should be presented a data packet?
The port number lets IP know which service should be presented a data packet.
What is The header of an IPv4 packet does not include fields required for?
The header of an IP packet does not include fields required for reliable data delivery. There are no acknowledgments of packet delivery. There is no error control for data.
Why is data uploaded as you download?
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.
How does ip knows which service should be presented a data packet?
By the Port Number.
Does gsm-gprs modem with tcp-ip stack means you can assign static ip or you have to write an interface which will convert your packet to something which modem can understand?
There are two data flows CSD and GPRS data flow integrating with TCP/IP , we get a IP address dynamically, we can do dial/up connection by sending PPP packet or we can do gprs connection by IP packets
What does the protocol field in the IP header identify?
The protocol field, in the IP header, identifies what kind of data is in the IP packet - the upper-layer protocol. For example, if the code is 6, that means that the data is a TCP segment.
In which mode of ipsec is the data within an ip packet encrypted while the header information is not?
Transport
Is IP encapsulated data referred to as a segment?
Yes. Encapsulated data that moves through a packet is referred to as a segment. A packet is a bundle of information sent across a network in a structured fashion.
What destination IP address will PC1 place in the header for a packet destined for PC2?
A data packet is split into three parts: The header, the payload and the trailer.The header contains the basic instructions about the data packet which should include:The packet lengthSynchronization (a few check bits to match up to the network)Originating IP Address (i.e. PC 1)Destination IP Address (i.e. PC 2)ProtocolPacket numberThe payload is the main body of data that is being sent. The size of the data can be a fixed length or a variable amount. If it is a fixed length, then this can be padded with blank data, so that each packet remains the same size.The trailer or footer contains data that tells the destination computer that it has reached the end of the packet. The trailer may also contain error checking information. This will tell the receiving computer to tell the originating source that the information was received.
How does the access point know if a wireless data packet is intended for its network?
Usually IP addressing is used.
Which field in the IP packet header allows checking for data transmission errors?
time to live
