unicast
capuyan's answer "ADOBE"
Theoretically, real time communication means communicating or more technically packet sending without loosing time. Practically, just simulate it.
packet-switched
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.
When a packet is corrupted on a bus topology network, the receiving device will detect the corruption using error-checking mechanisms such as CRC (Cyclic Redundancy Check). The corrupted packet will be discarded by the receiving device, and the sender will need to retransmit the packet. This process adds latency to the communication but ensures data integrity.
It's packet fragmentation attack by sending overlapping fragments.
If the sending device does not receive an acknowledgement for a packet, the packet will be retransmitted.
The delivery of Packet byDestination Computerin TCP\IP stack is reported by sending Acknowledgement to the Source Computerfor the received Packet by Destination Computer.
ACK packets, NAK packets, or a packet timeout happens at the sending device.
The SYN packet is part of the TCP (Transmission Control Protocol) three-way handshake used to establish a reliable connection between a client and server. It signals the initiation of a connection by requesting a session and includes the initial sequence number for the connection. Upon receiving a SYN packet, the server responds with a SYN-ACK packet to acknowledge the request, followed by the client sending an ACK packet to complete the handshake. This process ensures that both parties are synchronized and ready for data transmission.
In stop-and-wait error control, only one packet can be sent at a time. After sending a packet, the sender must wait for an acknowledgment (ACK) from the receiver before sending the next packet. This means that the sender can only transmit one packet and must pause until it receives confirmation that the previous packet was received correctly. Consequently, the effective throughput is limited by the round-trip time for the ACK.
It ensures that the Packet gets to its destination or it ensures packet delievry . If a packet fails to get its destination, it handles the process of notifying the sender.