范文为教学中作为模范的文章，也常常用来指写作的模板。常常用于文秘写作的参考，也可以作为演讲材料编写前的参考。范文书写有哪些要求呢？我们怎样才能写好一篇范文呢？这里我整理了一些优秀的范文，希望对大家有所帮助，下面我们就来了解一下吧。
思科ccie考试时间篇一
思科ccie认证主要考试内容是什么?今天yjbys小编为大家分享的是ccie认证考试模拟试题及答案，仅供同学们复习!
1. two bgp peers connected through a routed firewall are unable to establish a peering relationship. what could be the most likely cause?
两个直连bgp邻居，无法通过防火墙建立邻居关系，最有可能是什么原因?
a. bgp peers must be layer 2-adjacent. b. ebgp multihop is not configured. ebgp邻居的多跳没有设置 c. the firewall is not configured to allow ip protocol 89. d. the firewall is not configured to allow udp 179.
answer: b
2. which two of these steps are minimum requirements to configure ospfv3 under ipv6? (choose two.) 需要哪两个步骤开始用最基本在ipv6上使用ospfv3协议 a. configure a routing process using the command ipv6 router ospf [process-id]. b. add the network statement for the interfaces on which ospf will run. c. configure ospf on the interface that it will run on. d. use the passive-interface command on the interfaces on which ospf should not run. e. enable routing.
answer: ce
3. you add the following commands into a routed topology: router eigrp 1 variance 3 traffic-share min across-interfaces. users now complain about voice quality in your voip system. what should be done?
你在路由器上加入了下面的命令 “router eigrp 1 variance 3 traffic-share min across-interfaces”用户现在抱怨在voip服务中语音通信质量很差，你该怎么做?
a. add the command: router eigrp 1 traffic-share voice interface fast 0/0. b. reconfigure eigrp to recognize voice packets. c. remove the variance from the configuration. 删除这条配置命令 d. reconfigure the voip system to use rtp sequence number headers. e. use an h.323 gatekeeper for your voip system to negotiate an h.245 uneven packet buffer. f. reconfigure eigrp to version 2.
answer: c
4. refer to the exhibit. how would you get the 1.1.1.1 network into the ospf database?
如图所示，怎么做可以让1.1.1.1网络进入ospf数据库中?
a. configure rta as an asbr.
b. redistribute connected routes on rta into ospf. c. set up a virtual link between area 1 and area 0.
建立一条虚链路在区域1和区域0之间
d. set up a virtual link between area 1 and area 2. e. add a static route into rtb and enter it into ospf. f. place a network 1.1.1.0 0.0.0.0 command into rtb. g. set up a unique router id on rta using an rfc 1918 address. h. change area 0 on rtb to area 1
answer: c
5. refer to the exhibit. router e learned about the pim rp (designated as 7.7.7.7) from four different sources. routers a and d advertised the 7.0.0.0 network via eigrp. routers b and c advertised the 7.0.0.0 network via ospf. considering that all four ethernet interfaces on router e could potentially lead back to the pim-rp, when router e receives the first multicast packet down the shared tree, which incoming interface will be used to successfully pass the rpf check?
如图所示，路由器e从不同渠道学习7.7.7.7的的路由。路由器a和d在eigrp中通告的`7.0.0.0 的路由，路由器b和c在ospf中通告的7.0.0.0的路由。考虑到4个网口都能连接到pim-rp。 当路由器e收到第一个多播包在共享树。哪个接口能在入方向通过rpf检查?(答案可能有不准)
a. e0 b. e1 c. e2 d. e3 e. none of these interfaces will be used to successfully pass the rpf check. f. all of these interfaces would successfully pass the rpf check. answer: a
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