发布时间 : 星期五 文章ccie笔试 - 图文更新完毕开始阅读4f3dc9b08e9951e79a892711
QUESTION 46
Which statement about passive interfaces is true?
C. The interface with the IS-IS passive interface configuration sends the IP address of that interface in the link-state protocol data units.
QUESTION 47
Which three statements about GET VPN are true? (Choose three.)
A. It encrypts WAN traffic to increase data security and provide transport authentication.
它加密广域网流量以增加数据安全性并提供传输认证 in?kripts
B. It provides direct communication between sites, which reduces latency and jitter.
它提供了站点之间的直接沟通,这样可以减少延迟和抖动 'le?t?ns? ?d??t? D. It uses a centralized key server for membership control.
为成员控制使用集中秘钥服务器 ?sentr?la?z
QUESTION 48
In which 802.1D port state are the root bridge, the root port, and the designated port(s) elected? 'deziɡ,neitid指定的 ??lekt 选举; A. Listening QUESTION 49
Which two statements about UDP and latency （'le?t?ns?延时）are true? C. UDP is connectionless, so latency can increase the size of a UDP stream. UDP面向无连接，所以延迟会增加UDP流量的尺寸 ?n?kri:s vt. 增加，增大，增多; F. Latency can cause jitter on UDP connections. UDP连接的延迟会导致抖动 QUESTION 50
Refer to the exhibit. Which statement is true?
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D. The output shows an IPv6 multicast address with embedded RP. 输出显示了内嵌RP的IPv6组播地址
QUESTION 51
How does MSTP provide backward compatibility with RSTP?
ＭＳＴＰ如何为ＲＳＴＰ提供兼容性 k?m?p?t??b?l?ti 互换性; 通用性;
D. It encodes the MSTP-specific region information before the legacy RSTP BPDU 在传统RSTP之前解码ＭＳＴＰ地区信息 （sp??s?f?k具体的; 明确的; ?ri:d??n 地区，地域；?leg?si传统、遗物） QUESTION 52
Which standard feature can be exploited by an attacker to perform network reconnaissance？哪种标准特性被攻击者用来执行网络侦查 ?k?spl??t 开采; 利用（…为自己谋利）
p??f?:m 执行; 履行 r??k?n?sns侦察或观测 ;
C. ICMP redirects 重定向 QUESTION 53
How are the Cisco Express Forwarding table and the FIB related to each other?
思科如何表达转发表和转发信息库之间的关系 forwarding information database
D. Cisco Express Forwarding uses a FIB to make IP destination prefix-based switching decisions. d??s??n 决定; 决议; 思科转发表经常使用转发信息库作为IP目标前缀的交换判定
QUESTION 54
Which statement about the bgp soft-reconfig-backup command is true? D. It provides soft reconfiguration capabilities for peers that are unable to support route refresh 不支持路由刷新时为对端提供的软重组能力
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QUESTION 55
What happens when an interface is configured as passive in OSPF? A. No OSPF neighbor ship is formed on the interface. QUESTION 56
Which protocol will accept incoming updates when the passive-interface command is configured?哪种协议配置为被动接口后可以接收入向更新 C. RIP QUESTION 57
What are the three HDLC operating modes? ＨＤＬＣ的三种操作模式
A. normal response 标准响应 B. asynchronous balanced 异步平衡 D. asynchronous response 异步响应 e??s??kr?n?s
QUESTION 58
Which two statements about BPDU guard are true? (Choose two.)
A. The global configuration command spanning-tree port fast bpdu guard default shuts down interfaces that are in the Port Fast-operational state when a BPDU is received on that port.当开启端口快速转发并接收到BPDU时，默认关闭接口 ??p??re???nl
C. BPDU guard can be used to prevent an access port from participating in the spanning tree in the service provider environment.
一般用于阻止参与服务提供商环境下的stp 外界 pɑ:?t?s?pe?t 参与 ?n'va?r?nm?nt 环境
QUESTION 59
Which three options are best practices for implementing a DMVPN? (Choose three.) 'pr?kt?s实践、惯例 ??mpl?ment 实现 A. Use IPsec in tunnel mode.
B. Implement Dead Peer Detection to detect communication loss.
实现对等体存活检测和通信损耗检测 '?mpl?m(?)nt 实现，使生效 d??tek?n 侦查; 检查; 察觉;
C. Configure AES for encryption of transported data.为数据传输配置AES加密
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QUESTION 60
Which two statements are true about IS-IS? (Choose two.) C. IS-IS works over the data link layer, which does not provide for fragmentation and reassembly.工作在数据链路层，不提供分段和重组 ?
fr?ɡmen'te??n r?'?sembl? 重新组装; ??mi:di?t 立即的; 直接的
D. IS-IS can never be routed beyond the immediate next hop.无法超越下一跳路由 QUESTION 61
Which three statements about OSPFv3 address families are true? (Choose three.) p??f?:m 执行; 履行;
B. Address families can perform route redistribution into any IPv4 routing protocol.地址簇可以执行路由重分布进任何V4路由协议
D. IPv4 address family require an IPv4 address to be configured on the interface.需要在端口上配置IPV4地址
E. Each address family uses a different shortest path tree. QUESTION 62
Which BGP feature prevents a router from installing an iBGP learned route in its routing table until the route is validated within the IGP? ?v?l?de?t有效; 验证; 确认
哪一种BGP特性阻止路由器加载iBGP学习到的路由进入路由表，直到路由被证明在IGP表中。
B. aggregation 路由聚合 QUESTION 63
Which two statements about TCP are ture? (Choose two.) B. It has a 16-bit window size.
C. Its maximum data offset is fifteen 32-bit words. QUESTION 64
Which EEM event detector is triggered by hardware installation or removal?
Embedded Event Manager (EEM) 嵌入式事件管理器
哪种EEM事件探测器触发硬件的安装或移除 ?tr?g? 引发，触发;
C. OIR Event Detector
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