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for better performance by using timers instead of duplicate acknowledgements
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In tcp ip the protocol that garuntees packet delivery is ip?
No, the protocol that guarantees packet delivery is TCP.No, the protocol that guarantees packet delivery is TCP.No, the protocol that guarantees packet delivery is TCP.No, the protocol that guarantees packet delivery is TCP.
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.
What is tcp rtt?
Short for Round Tripp Time... It's the time a TCP packet takes to travel to it's destination and back (in the form of an acknowledgement-packet).
What three packets are exchanged between two hosts when establishing a tcp connection?
The SYN packet, the SYN ACK packet , And ACK packet
What purpose does the acknowledgement number in TCP do?
It acknowledges receipt of the previous packet in the sequence.
Is a UDP packet smaller than a TCP packet?
In general, yes, using UDP transport will use a smaller packet than TCP. UDP generally assumes that the complete message will fit within a single packet, unlike TCP which will segment or break apart a message into multiple packets for guaranteed reliable delivery. UDP has no such requirement to deliver anything within a reliable framework and would like to keep the entire message within a single packet and eliminate the segmentation and reassembly process.
Can you use UDP and still get the advantages of TCP by some way?
That depends on the protocols used. TCP provides reliability, but if TCP is not used, higher-level protocols can include the reliability instead. That is to say, if a packet is not received, the higher-level protocol will take the responsibility of sending (or requesting) the packet again.For example, TFTP (Trivial File Transfer Protocol) uses UDP, and automatically resends a packet when an acknowledgement is not received after a certain time.That depends on the protocols used. TCP provides reliability, but if TCP is not used, higher-level protocols can include the reliability instead. That is to say, if a packet is not received, the higher-level protocol will take the responsibility of sending (or requesting) the packet again.For example, TFTP (Trivial File Transfer Protocol) uses UDP, and automatically resends a packet when an acknowledgement is not received after a certain time.That depends on the protocols used. TCP provides reliability, but if TCP is not used, higher-level protocols can include the reliability instead. That is to say, if a packet is not received, the higher-level protocol will take the responsibility of sending (or requesting) the packet again.For example, TFTP (Trivial File Transfer Protocol) uses UDP, and automatically resends a packet when an acknowledgement is not received after a certain time.That depends on the protocols used. TCP provides reliability, but if TCP is not used, higher-level protocols can include the reliability instead. That is to say, if a packet is not received, the higher-level protocol will take the responsibility of sending (or requesting) the packet again.For example, TFTP (Trivial File Transfer Protocol) uses UDP, and automatically resends a packet when an acknowledgement is not received after a certain time.
IP TCP and UDP all discard a packet that arrives with a checksum error and do not?
Only TCP will automatically discard a packet with a bad checksum. UDP packets have a checksum field, but it is rarely used, and then only by the application (not UDP itself)
Why to use tcp header?
a tcp header contains the information of the source and destination networks and well as what port to access with out it the packet would not know where to go
What is the difference between packet filtering and stateful inspection?
Packet Filtering:permits or denies traffic based onsource/destination IP addresses, or TCP/UDP port numbers usingAccess Control Lists (ACLs)Stateful Packet Inspection:Tracks TCP and UDP sessions in a flowtable, using the Adaptive Security Algorithm.
If the tcp protocol did not receive an acknowledgement?
If the sending device does not receive an acknowledgement for a packet, the packet will be retransmitted.
How the operating system knows the difference between tcp and udp packet?
The "packets" are actually called "segments" in the case of layer 4 (i.e., TCP or UDP).When creating an IP packet, a host (computer, or other equipment that participates in a communication) adds information to the "protocol" field. This indicates whether the IP packet transports a TCP segment, a UDP segment, or some other kind of information.The "packets" are actually called "segments" in the case of layer 4 (i.e., TCP or UDP).When creating an IP packet, a host (computer, or other equipment that participates in a communication) adds information to the "protocol" field. This indicates whether the IP packet transports a TCP segment, a UDP segment, or some other kind of information.The "packets" are actually called "segments" in the case of layer 4 (i.e., TCP or UDP).When creating an IP packet, a host (computer, or other equipment that participates in a communication) adds information to the "protocol" field. This indicates whether the IP packet transports a TCP segment, a UDP segment, or some other kind of information.The "packets" are actually called "segments" in the case of layer 4 (i.e., TCP or UDP).When creating an IP packet, a host (computer, or other equipment that participates in a communication) adds information to the "protocol" field. This indicates whether the IP packet transports a TCP segment, a UDP segment, or some other kind of information.
