2010年下半年(上午)《网络管理员》真题
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- 发布时间:2021-12-31 08:46
- 卷面总分:72分
- 答题时间:240分钟
- 试卷题量:72题
- 练习次数:2次
- 试卷分类:初级网络管理员
- 试卷类型:历年真题
试卷预览
A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port ( ) to accomplish this. Another responsibility of a transport layer protocol is to create a ( ) and error-control mechanism at the transport level. TCP uses a sliding ( ) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve ( ) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends ( ) 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.
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正确答案:B
本题解析:
传输层协议有多种作用。其一是产生进程(或程序)之间的通信,TCP使用端口号来实现这个功能。传输层协议的另一个作用是形成传输层的流量和差错控制机制,TCP使用滑动窗口协议来进行流量控制,并且使用应答分组、超时机制和重传技术来实现差错控制功能。传输层还要为应用程序建立连接,应用程序向传输层发送数据流,发送方的传输层就与接收方的传输层建立对应的连接。
A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port ( ) to accomplish this. Another responsibility of a transport layer protocol is to create a ( ) and error-control mechanism at the transport level. TCP uses a sliding ( ) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve ( ) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends ( ) 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.
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正确答案:C
本题解析:
传输层协议有多种作用。其一是产生进程(或程序)之间的通信,TCP使用端口号来实现这个功能。传输层协议的另一个作用是形成传输层的流量和差错控制机制,TCP使用滑动窗口协议来进行流量控制,并且使用应答分组、超时机制和重传技术来实现差错控制功能。传输层还要为应用程序建立连接,应用程序向传输层发送数据流,发送方的传输层就与接收方的传输层建立对应的连接。
A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port ( ) to accomplish this. Another responsibility of a transport layer protocol is to create a ( ) and error-control mechanism at the transport level. TCP uses a sliding ( ) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve ( ) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends ( ) 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.
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正确答案:B
本题解析:
传输层协议有多种作用。其一是产生进程(或程序)之间的通信,TCP使用端口号来实现这个功能。传输层协议的另一个作用是形成传输层的流量和差错控制机制,TCP使用滑动窗口协议来进行流量控制,并且使用应答分组、超时机制和重传技术来实现差错控制功能。传输层还要为应用程序建立连接,应用程序向传输层发送数据流,发送方的传输层就与接收方的传输层建立对应的连接。
A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port ( ) to accomplish this. Another responsibility of a transport layer protocol is to create a ( ) and error-control mechanism at the transport level. TCP uses a sliding ( ) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve ( ) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends ( ) 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.
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正确答案:D
本题解析:
传输层协议有多种作用。其一是产生进程(或程序)之间的通信,TCP使用端口号来实现这个功能。传输层协议的另一个作用是形成传输层的流量和差错控制机制,TCP使用滑动窗口协议来进行流量控制,并且使用应答分组、超时机制和重传技术来实现差错控制功能。传输层还要为应用程序建立连接,应用程序向传输层发送数据流,发送方的传输层就与接收方的传输层建立对应的连接。
A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port ( ) to accomplish this. Another responsibility of a transport layer protocol is to create a ( ) and error-control mechanism at the transport level. TCP uses a sliding ( ) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve ( ) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends ( ) 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.
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正确答案:A
本题解析:
传输层协议有多种作用。其一是产生进程(或程序)之间的通信,TCP使用端口号来实现这个功能。传输层协议的另一个作用是形成传输层的流量和差错控制机制,TCP使用滑动窗口协议来进行流量控制,并且使用应答分组、超时机制和重传技术来实现差错控制功能。传输层还要为应用程序建立连接,应用程序向传输层发送数据流,发送方的传输层就与接收方的传输层建立对应的连接。
PC1接入Internet的拓扑如下图所示,其中Server1为Web服务器,则PC1的Internet协议属性参数的配置中,IP地址可能为( ),默认网关为( )。
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正确答案:C
本题解析:
本试题考查考生Internet协议属性参数的配置情况。
Internet协议属性参数中,默认网关应设置为当PC接入Internet时,与PC相连的路由器端接口IP地址,故为61.248.12.34。再由网关的IP及子网掩码,只有61.248.12.62/27在该网段。
在某PC上运行ipconfig /all命令得到如下结果,本机IP地址的租约期为( )小时,该PC访问Web网站时最先查询的DNS服务器为( )。
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正确答案:B
本题解析:
从首选DNS服务器地址为8.8.8.8,该PC访问Web网站时最先查询的DNS服务器为8.8.8.8
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