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| 12) Which protocols can NetBIOS bind to? (Select all that are applicable.) (NETBIOS可以绑定在哪个协议上,选择所有可能的协议)? A. Appletalk 13) What layers do not exist in the TCP/IP model that are in the OSI model (哪层不在T C P / I P模型中,但它在O S I模型中)? A. Application, presentation, and network 14) What is a socket in the transport layer (传输层中的套接字是什么)? A. The socket is an IP address plus a port A. An API that makes the transport layer independent 16) Which of the following services uses a process called windowing (下面的哪一个服务使用了所谓的窗口机制)? A. Reliable data transfer 17) What is UDP (什么是U D P )? A. An API that makes the transport layer independent 18) What is IP (什么是I P )? A. It is the transport mechanism for upper layer services 19) What is ICMP (什么是I C M P )? A. It is a network layer protocol that handles control messages 20) Ping sends an ICMP echo command to an IP address in order to determine whether anetwork connection exists to that node (Ping向一个I P地址发送了一个I C M P回送命令,目的是确定是否存在到那个节点的网络连接)? A. True 21) Which of the following best describes TCP/IP (下面的哪句话最准确地说明了T C P / I P )? A. A static protocol 22) UDP and TCP represent mechanisms used by which layer of the TCP/IP (UDP和T C P表示了T C P / I P的哪层使用的机制)? A. Data link layer 23) RPCs provide which of the following (RPC提供了下面的哪个功能)? A. Connection-oriented session 24) Distributed Computing Environment (DCE) is an example of (分布式计算环境( D E C )是下面的哪一项的一个例子)? A. OSI model 25) Which statement is true of WinSock (下面对Wi n S o c k的哪一句陈述是正确的)? A. It is a MAC application 26) Which statement is true of TLI (下面关于T L I的哪一句陈述是正确的)? A. It is a layer in the OSI model 27) Which statement is true of Windows Name Server (WINS) (下面对于Windows 命名服务器( W I N S )的陈述中,哪一句是正确的)? A. It is a protocol 28) ICMP、I P、ARP and RARP of the IP protocol suite map to (IP协议套件的I C M P、I P、A R P和R A R P映射到): A. OSI layers 1 and 2 29) Which layer is most important in providing reliable data exchange between two systems A. Physical layer 30) Which of the following does TCP provide (TCP提供了下面的哪一个功能)? A. Unreliable data stream 31) Of the following, which field is not a part of the TCP header (在下面各项中,哪一个字 A. Subnet mask |
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