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CCNA考试自测题2

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6) When a node on one network sends a packet to a node on another segment that is three
hops away, what addresses are included in the initial addressing of that packet (select 2) (当网络上的节点向另一个跳3个跳上的节点发送信息表时,在那个信息表的初始地址中包含了什么地址)?

  A. The network address of the router

  B. The MAC layer address of the router

  C. The network address of the destination node

  D. The MAC layer address of the destination node

  7) What are three objectives for a routing protocol (路由选择协议的3个目标是什么)?

  A. Accuracy

  B. Quick holddowns

  C. Rapid Convergence

  D. Low overhead

  8) Define convergence (定义收敛)。

  A. Convergence is the updates that are triggered by network changes

  B. Convergence is the process of sending 呼叫packets

  C. Convergence is two routers merging their routing tables into one

  D. Convergence is the synchronizing of all routing tables on the internetwork, or simply the synchronization of a single route change across all routers.

  9) Why are dynamic routing protocols considered dynamic (为什么动态路由选择协议考虑动态)?

  A. Because each route is dynamically selected for each packet with a destination network not attached to the router。

  B. Because new routes are dynamically recomputed whenever there is a change in the nternetwork topology

  C. Because convergence happens faster

  D. Because all the routes remain the same no matter what changes happen on the network

  10) What is a static route (什么是静态路由)?

  A. A static route is one that has been manually entered into the routing table and is not updated by a routing protocol

  B. A static route is one that is recomputed whenever a change is made on the internetwork

  C. A static route is one that is redistributed when it has been learned by another routing protocol

  D. A static route is one that comes already configured in the router from the manufacturer

  11) What type of network is best when using static routes (当使用静态路由时,何种类型的网络是最好的)?

  A. A large network with hundreds of routers and networks

  B. A complex internetwork that changes often

  C. An autonomous system with multiple connections to other autonomous systems

  D. A small network with few routers and infrequent changes

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