数据计算机网络知识（Data, computer, network knowledge）.docVIP

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数据计算机网络知识（Data, computer, network knowledge）.doc

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数据计算机网络知识（Data, computer, network knowledge）

数据计算机网络知识（Data, computer, network knowledge） Comprehensive base (computer network knowledge) question bank 1.1 individual choice 1. the network using the TCP/IP protocol is obtained through the logic and operation of the IP address and network screening code. Communication between different subnets must be routed. The significance of dividing a subnet is (). A, suppresses broadcast storm which possibly produces in the network; B, prevent hacker intrusion; C is good for routers, so that the network is faster; D, facilitate communication between network users; The correct answer: A 2. usually we call the SWITCH HUB working in the OSI model A, physical layer B, data link layer C, session layer D, transport layer The correct answer: B 3. in the Windows95/98 environment, the ping command is typically used to check whether the two hosts can communicate at the IP layer. If the Ping B IP address fails on the A machine and there are multiple routers between the A and the B, then the router between the A machine and the B machine has a problem on which router. Use the following command. A, tracert B, winipcfg C, netstat, -r D, route The correct answer: A 4., through the standard network interface, the network card and network card or hub and hub directly connected, must use the cross network, the network ends of the RJ45 connector, the central line is not the same, the difference is that. A, 1, 3 and 2, 6, two pairs of lines are interchanged B, 1, 2 and 3, 6, two pairs of lines are interchanged C, 4, 5 and 7, 8, two pairs of lines are interchanged D, 4, 7 and 5, 8, two pairs of lines are interchanged The correct answer: B 5. ______ protocol enables hosts and routers connected through the serial line. A, PPP B, RIP C, ICMP A, RPV The correct answer: A Each router on the 6. Internet maintains a network that describes the reachability of the network A and class table B and relational tables C and routing table D and statistics The correct answer: C The 7. () protocol resolves th