CMS专题
单选题Why is NTP an important component when implementing IPSec VPN in a PKI environment？（）ATo ensure the router has the correct time when generating its private/public key pairs.BTo ensure the router has the correct time when checking certificate validity f
题目
To ensure the router has the correct time when generating its private/public key pairs.
To ensure the router has the correct time when checking certificate validity from the remote peers
To ensure the router time is sync with the remote peers for encryption keys generation
To ensure the router time is sync with the remote peers during theDH exchange
To ensure the router time is sync with the remote peers when generating the cookies during IKE phase 1
参考答案和解析
相似问题和答案
第1题：
●The most important core component of computer system is (71) ．
(71)
A．CD-ROM
B．DRAM
C．CPU
D．CRT
参考译文
计算机系统中最重要的核心部件是CPU（中央处理机）。
参考答案
(71)C
第2题：
Lewis’ research provides an answer to the question 。
A. why TV is important in family life
B. why parents should keep good order
C. why children in small families seem to be quieter
D. why middle children seem to have more difficulties in life
第3题：
计划的主要内容包括（），计划必须清楚地确定和描述这些内容。
A.What，Why，Who，Where，When，Howmany，Howmuch
B.What，Why，We，Where，When，Howto，Howmuch
C.What，Why，We，Where，When，How，Howmuch
D.What，Why，Who，Where，When，How，Howmuch
第4题：
What are two important guidelines to follow when implementing VTP？（）
- A、 CDPmust be enabled on all switches in theVTP management domain.
- B、 All switches in the VTPdomain must run the same version of VTP.
- C、 When using secure mode VTP， only configure management domain passwords onVTP servers.
- D、 EnablingVTP pruning on a server willenable the feature for the entire management domain.
- E、 Use of theVTPmulti-domain feature should be restricted to migration and temporary implementation.
正确答案:B,D
第5题：
Why is listening important in learning English?
Listening is important mainly for two reasons. First, we cannot develop speaking skills unless we also develop listening skills. To have a successful conversation, students must understand what is said to them. Later the ability to understand spoken English may become very important. Second, listening to spoken English is an important way of acquiring the language, while in our situation the students do not hear English spoken around them, so it is important for us to give our students as much opportunity as possible to listen to spoken English.
略
第6题：
健康教育计划总体目标的三个"W"是指
A、when，why，which
B、who，what，when
C、when，why，what
D、when，where，what
E、who，what，why
第7题：
Why is tolerance important?
___________
25．lt will make everyone's lives/life easier． 【解析】由最后一段第一句可知。
第8题：
why is quick closing valves important to in engine room machineries ?how are they operated ?
第9题：
什么是5W1H？（）
- A、What，Where，When，Who，Which，How
- B、What，Where，When，Who，Why，How
- C、What，Where，When，Which，Why，How
- D、以上全部
正确答案:A
第10题：
When designing the routing for an Enterprise Campus network it is important to keep while of thefollowing filtering aspects in mind？（）
- A、 Filtering is only useful when combined with route summarization
- B、 It is best to filter （allow） the default and summary prefixes only in the Enterprise Edge to remotesites or site-to-site IPsec VPN networks
- C、 IGPs （for example EIGRP or OSPF） are superior to route filtering in avoiding in inappropriatetransit traffic through remote nodes or inaccurate or inappropriate routing updates
- D、 The primary limitation of router filtering is that it can only be applied on outbound updates
正确答案:D