A transport layer protocol has several responsibilities, One

【名词&注释】

食管癌(esophageal carcinoma)、脑膜炎(meningitis)、数据流(data stream)、黄曲霉毒素(aflatoxin)、葡萄球菌(aureus)、攻击行为(aggressive behavior)、应用程序(application)、端口号(port number)、肺炎球菌(pneumococcus)、密切相关(closely related)

[单选题]A transport layer protocol has several responsibilities, One is to create a process-to-process (program-to-program) communication; TCP uses port (1) to accomplish this. Another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. TCP uses a sliding (3) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends (5) of data to the transport layer. It is the responsibility of the transport layer at the sending station to make a connection with the receiver.

A. A

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学习资料：

[单选题]复苏中提起下巴的目的是()

A. A．保持呼吸道通畅
B. B．防止牙齿咬伤舌
C. C．改善咽喉成角
D. D．防止颈椎损伤
E. E．保护咽部

[单选题]IMViC试验常用于鉴别（）

A. 肠道杆苗
B. 葡萄球菌
C. 肺炎球菌^{(pneumococcus)}
D. 脑膜炎奈瑟菌
E. 厌氧菌

[单选题]在P2DR2安全模型中，“Pt”代表（）。

A. 攻击成功所需时间
B. 系统检测到攻击行为所需时间
C. 系统做出响应所需时间
D. 安全体系建设所需时间

[单选题]流行病学调查表明黄曲霉毒素与人类哪种肿瘤的发生密切相关^{(closely related)}（）

A. 肠癌
B. 胰腺癌
C. 食管癌
D. 胃癌
E. 肝癌

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