阶级斗争是阶级社会发展的()
A.唯一动力
B.直接动力
C.根本动力
D.最终动力
第1题
A.Layer2
B.Layer3
C.Layer4
D.out-of-band
第2题
A.prioritization
B.classification
C.fragmentation
D.trafficshaping
第3题
A.one-waylatencyof150msto200ms
B.jitterof30msorless
C.packetlossof2percentorless
D.150bpsofoverheadbandwidth
第4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5题
A.ISL
B.VLANTrunk
C.VoQ
D.EnhancedISL
第6题
A.RSVPitselfprovidesbandwidthanddelayguarantees.
B.ForRSVPtobeend-to-end,alldevicesmustsupportRSVP.
C.RSVPreservationsaremaintainedbyacentralizedreservationsserver.
D.AnRSVPcompatibleQoSmechanismmustbeusedtoimplementguaranteesaccordingto RSVP reservations.
第7题
A. bandwidth efficiency
B. cell-switching
C. congestion notification
D. heterogeneous network
第8题
A.supportsmultipleprotocols
B.worksonlyinasharedorloopenvironment
C.allowsaddressingforupto4millionnodes
D.providesahighspeedtransportforSCSIpayloads
第9题
A.79xxIPphonesdonotautomaticallymarkvoicepacketswithnon-zeroDSCPvalues.
B.79xxIPphonesdonotmarkprotocolpacketssuchasDHCP,DNS,orTFTPwithnon-zero DSCPvalues.
C.79xxIPphonesdonotmarkvoicepacketswithoptimalDSCPvalues.
D.79xxIPphonesuseacustomprotocoltocommunicateCDPinformationtotheswitch.
第10题
A.OSPF
B.RIP
C.FSPF
D.VSANs
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