In TCP segment header, which field can implement the reliable data transfer?
A. source port number and destination port number
B. sequence number and ACK number
C. urgent data pointer
D. Receive window
查看答案
In the following four descriptions about TCP connection management, which one is not correct?
A. Either of the two processes participating in a TCP connection can end the connection
B. If the FIN bit is set to 1, it means that it wants to close the connection
C. In the first two step of the three-way handshake, the client and server randomly choose an initial sequence number
D. In the three segments of the three-way handshake, the SYN bit must be set to 1
Suppose host A sends two TCP segments back to back to host B over a TCP connection. The first segment has sequence number 42, and the second has sequence number 110. If the 1st is lost and 2nd arrives at host B. What will be the acknowledgment number?
A. 43
B. 42
C. 109
D. 110
若采用双符号位，则发生正溢出的特征是：双符号位为（ ）。
A. 00
B. 01
C. 10
D. 11
字长12位，用定点补码规格化小数表示时，所能表示的正数范围是（ ）。
A. 2-12 ~（1- 2-12 ）
B. 2-11 ~（1- 2-11 ）
C. 1/2 ~ （1- 2-11 ）
D. - （1/2 + 2-11 ）~ （1- 2-11 ）
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