a list of prefixes that can be configured in a poilcy
a single prefix that is configured separately and be referenced in a policy
a list of prefixes that is configured separately and can be referenced in a policy
a single prefix that can be configured within a policy
第1题：
Given the following policy, what happens when the 1.1/17 route is evaluated?（）[edit policy-options] policy-statement test{ from { route-filter 0/0 orlonger accept; route-filter 1.1/17 upto /24 reject; route-filter 1.1/18 exact; }then { metric 6; accept; }
A. The route does not match this policy.
B. The route is accepted.
C. The route is rejected.
D. The route is accepted with a metric of 6.
第2题：
WhichactionoccurswhentheBGProute20.1.0.0/16isevaluatedbythepolicyexpression？（）[editpolicy-options]policy-statementmy-filter{term-first{from{route-filter192.168.0.0/16orlongeraccept；route-filter192.168.1.0/24exactaccept；route-filter192.168.2.0/24exact；}then{metric10；accept；}termsecond{then{metric20；accept；}}policy-statementmain{termchange-attributesfrom{policymy-filter；}thenaccept；}termdefault{thenreject；}}[editprotocols]bgp{exportmain；}
A.TherouteisnotadvertisedintoBGP
B.TherouteisadvertisedintoBGPwithmetric10.
C.TherouteisadvertisedintoBGPwithmetric20.
D.TherouteisadvertisedintoBGPwithdefaultmetric.
第3题：
Linux中，提供TCP/IP包过滤功能的软件叫什么()
A.rarp
B.route 9
C.iptables
D.filter
第4题：
下面哪个将正确表达比10.0.0.0/16更精确的所有路由（）
第5题：
A.prefix-list，route-map，filter-list，distributelist
B.route-map，filter-list，prefix-list，distribute-list
C.route-map，distribute-list，prefix-list，filter-list
D.filter-list，prefixlist，route-map，distributelist
E.distributelist，prefix-list，route-map，fitterlist
第6题：
Whichactionoccurswhenthepolicymain-policyevaluatestheBGProute10.0.55.2/32？（）
[editpolicy-options]
policy-statementtest{
from{
route-filter10.0.0.016/orlongeraccept；
route-filter10.0.67.0/24orlangerreject；
route-filter10.0.0.0/8orlanger；
}
then{
metric10；
communityaddno-advertise；
accept；
}
}
policy-statementmain-policy{
termonly-want-certain-routes{
from{
policytest；
}
then{
communityaddharry-402；
accept；
}
}
}
communitynoadvertisemembersno-advertise；
communityharry-402members666：402；
[editprotocols]
bgp{
exportmain-policy；}
第7题：
A.The route is a direct route.
B.The route was selected as active.
C.The route is a default route.
D.The route was learned using a dynamic routing protocol.
第8题：
A. The route does not match this policy.
B. The route is rejected.
C. The route is accepted.
D. The route is accepted, then rejected.
第9题：
What is the function of the affective filter?
According to the affective filter hypothesis, comprehensible input may not be utilized by second language acquirers if there is a “mental block” that prevents them from fully profiting from it. The affective filter acts as a barrier to acquisition: if the filter is “down”, the input reaches the LAD and becomes acquired competence; if the filter is “up”, the input is blocked and does not reach the LAD. Thus “input is the primary causative variable in SLA, affective variables acting to impel or facilitate the delivery of input to the LAD.”
略
第10题：
What is the order of preference for these commands when all of them are applied to one neighbor in theBGP inbound filter direction？（）