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CCNA系列认证 问题列表
问题
单选题路由器的数据连路层收到报文的MTU大于该路由器将要发出接口的最大MTU时，采取的策略是（）。A
丢掉该分组B
将该分组分片C
向源路由器发出请求，减小其分组大小D
直接转发该分组
问题
单选题On the assumption that every OSPF router in a particular area is configured with there is no loopback interface set?（）A
The IP address of the first Fast Ethernet interface.B
The IP address of the console management interface.C
The highest IP address among its active interfaces.D
The lowest IP address among its active interfaces.E
There will be no router ID until a loopback interface is configured.
问题
多选题On what kinds of networks does OSPF elect a backup designated router?（）APoint-to-pointBPoint to multipointCBroadcastDNon-broadcast multi-access
问题
单选题患儿，女，1岁，因咳嗽5天伴气促l天以支气管肺炎、先心病收住入院，查体：生长发育落后，呼吸60次/分，双肺细湿啰音，心界向左下扩大，心率170次/分，胸骨左缘第3～4肋间有Ⅳ级粗糙收缩期杂音，腹软，肝肋下2cm。该患儿首优的护理诊断是（ ）。A
生长发育的改变B
清理呼吸道无效C
气体交换受损D
活动无耐力E
潜在并发症：心力衰竭
问题
单选题Which of the following links on SMB Partner Central home page provides information about SMB Specialization training?（）A
Tools and ResourcesB
SMB UniversityC
SMB Select CertificationD
Programs and PromotionE
Additional Products and Services
问题
多选题The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。AIt provides dynamic neighbor discovery.BIt detects unreachable neighbors in 90 second intervals.CIt maintains neighbor relationships.DIt negotiates correctness parameters between neighboring interfaces.EItuses timers to elect the router with the fastest links as the designated router.FIt broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.
问题
多选题以下说法哪些是正确的（）。A如果几个动态路由协议都找到了到达同一目标网络的最佳路由，这几条路由都会被加入路由表中。B路由优先级与路由权值的计算是一致的。C路由权的计算可能基于路径某单一特性计算，也可能基于路径多种属性。D动态路由协议是按照路由的路由权值来判断路由的好坏，并且每一种路由协议的判断方法都是不一样的。
问题
单选题You are an administrator of a network that uses PPP for CHAP authentication over ever WAN link. What command would you enter to display the CHAP authentication as it occurs in real time?（）A
show ppp authenticationB
debug PAP authenticationC
debug PPP authenticationD
show interface serial0E
show CHAP authentication
问题
单选题轮状病毒肠炎多发年龄是（）A
新生儿B
6个月以下C
6～24个月D
3～5岁E
6岁以上