多项选择题
Option 10A （back-to-back VRF） is an implementation of inter-AS MPLS VPN. Which of four statementsabout option 10A are not true？（）
A.MPLS is required between the ASBRs.
B.ASBR must hold all routing information.
C.It is a scalable solution.
D.It is a simple solution.
E.MP-EBGP is used to exchange routes between ASBRs.
相关考题
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多项选择题
Whichthreeoftheseareopticalchanneldataunit（ODU）overheadfields？（）
A.general communication channel 0 （GCC0）
B.section monitoring
C.reserved （RES）
D.general communication channels 1 and 2 （GCC1 GCC2）
E.tandem connection monitoring activation deactivation （TCM ACT） -
单项选择题
WhichstatementaboutOSPFASBRsummaryLSAistrue？（）
A.It is generated by an ASBR and indicates the reachability to an ABR located in another area.
B.It is generated by ABR and indicates the reachability to an ASBR located in another AS.
C.It is generated by ABR and indicates reachability to itself.
D.It is generated by ABR and indicates the reachability to an ASBR located in another area.
E.It is generated by ASBR and indicates the reachability to an ABR. -
多项选择题
WhichtwomodelsarethemodelsofDiffServ-AwardtrafficEngineering？（）
A.Class-based Model
B.Maximum Allocation Model
C.Russian Doll Model
D.Global Tunnel Model
E.Policy-based Model
