Which action occurs when the BGP route 20.1.0.0/16 is evaluated by the policy expression?() [editpolicy-options] policy-statementmy-filter { term-first{ from{ route-filter192.168.0.0/16orlongeraccept; route-filter 192.168.1.0/24 exact accept; route-filter 192.168.2.0/24 exact; } then{ metric10; accept; } termsecond { then{ metric20; accept; }} policy-statementmain { termchange-attributes from{ policymy-filter; } thenaccept; } termdefault { thenreject; }} [editprotocols] bgp{ exportmain; }
第1题:
A. The route is advertised into BGP.
B. The route is suppressed from BGP.
C. The route is advertised into BGP and goes only one hop.
D. The route is advertised into BGP and can only propagate throughout the neighboring AS.
第2题:
WhichactionoccurswhentheBGProute20.1.0.0/16isevaluatedbythepolicyexpression?()[editpolicy-options]policy-statementreject_10{from{route-filter20.1.0.0/16orlongerM}then{communityadd90-1;accept}}policy-statementaccept_20{from{route-filter20.1.0.0/16orlongerM}then{communityadd100-1;reject;}}community100-1members100:1;community90-1members90:1[editprotocols]bgp{groupebgp-group{neighbor172.16.201.1{export(reject-10&&accept-20);}}}
A.Therouteisnotannounced.
B.Therouteisannouncedwith90:1added.
C.Therouteisannouncedwith100:1added.
D.Therouteisannouncedwithcommunities90:1and100:1added.
第3题:
A. route list
B. route origin
C. route target
D. route distinguisher
第4题:
A.In the absence of a terminating action, all routes are accepted.
B.The route will be evaluated by the second term in the policy.
C.The default action will be applied.
D.In the absence of a termination action, all routes are rejected.
第5题:
A. The Junos OS verifies the match criteria of each policy in order and performs the associated action when a match occurs.
B. Policies are evaluated from right to left as displayed in the Junos OS configuration file.
C. Polices are evaluated based on the order in which they are applied to a routing protocol.
D. Policy processing stops once the last statement in the policy is evaluated.
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:
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:
A. The route is not announced.
B. The route is announced with community 90:1 added.
C. The route is announced with community 100:1 added.C.The route is announced with community 100:1 added.
D. The route is announced with communities 90:1 and 100:1 added.D.The route is announced with communities 90:1 and 100:1 added.
第10题:
A. Only traffic with a destination from 10.10.0.0/19 will be permitted.
B. Router RAR1 will accept only route 10.10.0.0/19 from its BGP neighbor.
C. Only traffic going to 10.10.0.0/19 will be permitted.
D. Router RAR1 will send only route 10.10.0.0/19 to its BGP neighbor.