生产力和生产关系是()
A.原因与结果的关系
B.必然与偶然的关系
C.可能与现象的关系
D.内容与形式的关系
第1题
A.prioritization
B.classification
C.fragmentation
D.trafficshaping
第2题
A.one-waylatencyof150msto200ms
B.jitterof30msorless
C.packetlossof2percentorless
D.150bpsofoverheadbandwidth
第3题
A. Neither broadcast nor multicast traffic is ever flooded in VPLS.
B. Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.
C. VPLS emulates an Ethernet switch, with eachEMS being analogous to a VLAN.
D. Because U-PE devices act as IEEE 802.1 devices, the VPLS core must use STP.
E. When the provider experiences an outage, IP re-routing restores PW connectivity and MAC relearning is needed.
第4题
A.ISL
B.VLANTrunk
C.VoQ
D.EnhancedISL
第5题
A.RSVPitselfprovidesbandwidthanddelayguarantees.
B.ForRSVPtobeend-to-end,alldevicesmustsupportRSVP.
C.RSVPreservationsaremaintainedbyacentralizedreservationsserver.
D.AnRSVPcompatibleQoSmechanismmustbeusedtoimplementguaranteesaccordingto RSVP reservations.
第6题
A. bandwidth efficiency
B. cell-switching
C. congestion notification
D. heterogeneous network
第7题
A.supportsmultipleprotocols
B.worksonlyinasharedorloopenvironment
C.allowsaddressingforupto4millionnodes
D.providesahighspeedtransportforSCSIpayloads
第8题
A.79xxIPphonesdonotautomaticallymarkvoicepacketswithnon-zeroDSCPvalues.
B.79xxIPphonesdonotmarkprotocolpacketssuchasDHCP,DNS,orTFTPwithnon-zero DSCPvalues.
C.79xxIPphonesdonotmarkvoicepacketswithoptimalDSCPvalues.
D.79xxIPphonesuseacustomprotocoltocommunicateCDPinformationtotheswitch.
第9题
A.OSPF
B.RIP
C.FSPF
D.VSANs
第10题
A.provideserviceinternetworking
B.supporttransparencyforLayer2frames
C.indicatedestinationasaconnectionidentifier
D.maptotheDLCIinserviceinternetworking
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