多项选择题
Which three of these are optical channel data unit （ODU） overhead fields？ （）
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）
相关考题
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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 -
单项选择题
WhataretheaddressFamilyIdentifier（AFI）andsubsequentAddressfamilyIdentifierASAFI）valuesfrom VPNv6？（）
A.AFI is 2， SAFI is 128
B.AFI is 1， SAFI is 64
C.AFI is 2， SAFI is 64
D.AFI is 1， SAFI is 96
E.AFI is 2， SAFI is 96
F.AFI is 1， SAFI is 128
