Host A sends a TCP segment (Seq = 43, ACK = 103), to which host B replies with a TCP segment (Seq = 103, ACK = 57). The payload of the first TCP segment is
举一反三
- 某个TCP协议报文segment中ACK=1,Seq=a,ACK No.=b,正常情况下目的主机在收到该数据后的回复segment中Seq=
- 主机A向主机B发送一个(SYN=1,seq=100)的TCP段,期望与主机B建立TCP连接,若主机B接该连接请求,则主机B向主机A发送的正确TCP数据段可能是()。 A: (SYN=0,ACK=0,seq=101,ack=101) B: (SYN=1,ACK=1,seq=100,ack=100) C: (SYN=1,ACK=1,seq=101,ack=101) D: (SYN=0,ACK=0,seq=100,ack=100)
- 主机 A 向主机 B 发送一个(SYN=1,seq=11220)的 TCP 报文,期望与主机 B 建立 TCP 连接,若主机 B 收到接受该连接请求,则主机 B 向主机 A 发送正确的 TCP 报文段可能是( ) A: (SYN=0,ACK=0,seq=11221,ack=11221) B: (SYN=1,ACK=1,seq=11220,ack=11220) C: (SYN=1,ACK=1,seq=11221,ack=11221) D: (SYN=0,ACK=0,seq=11220,ack=11220)
- 主机A向主机B发送一个(SYN=1,Seq=1000)的TCP报文段,期望与主机B建立TCP连接,如果主机B接受该连接请求,则主机B向主机A发送的TCP报文段可能是( ) A: SYN=0,ACK=0,seq=1001,ack=1001 B: SYN=1,ACK=1,seq=1000,ack=1000 C: SYN=1,ACK=1,seq=1001,ack=1001 D: SYN=0,ACK=0,seq=1000,ack=1000
- Consider a TCP connection between Host A and Host B. Suppose that the TCP segment traveling from Host A to Host B have source port number x and destination port number y. What are the source and destination port numbers for the segments traveling from Host B to Host A?