1、A.奇偶A.X16+X15+X+1B.X16+X12+X5+X+1C.X16+X12+X+1D.A.自動(dòng)糾錯(cuò)C.D. A.101100100B.101101010C.101100111A.dB.d+1C.d-1： A.B.C.D.A.B.C.D.A.報(bào)文轉(zhuǎn)發(fā)B.報(bào)文交換轉(zhuǎn)發(fā)D.信元交 C.D.A.B.C.D.：C.D.A.B.C.D.： _(4)_(5)_A.PSTNB.X.25C.DDNA.B.C.D.A.B.C.D.A.3KHzB.3.4KHzC.64KbpsA.25%B.44%C.50%：A.B.C.C.D.A.B.C.C.D.B.C.D.B.C.D.RBC.SRT：壓縮技術(shù)的是_(3)

2、_。MMR數(shù)據(jù)壓縮系統(tǒng)是在MRA.B.C.D.A.B.C.D.A.MHB.MHC.MRA.B.C.D.A.MHB.MRC.MMR： A.MHB.MRC.MMR： A.SNMPv1B.SNMPv2C.SNMPv3A.B.C.A.getB.get-nextC.setA.B.C.D.A.B.MACC.LLCD.：7、SDLCwasinventedbyIBMtoreplacetheolder Bisynchronousprotocolfor nIBMequipment.Avarietionofthe_(1)_protocolcalledNRMessentiallythesameasSDLCis_(2)

3、_protocollikeHDLC,FrameRelayorX.25.AnSDLCnetworkisupof tcontrolsallcommunications,and_(4)_.Itiscapableof_(5)_butalmostallpracticalapplicationsaarestrictlyhalfA.HDLCB.FrameRelayC.X.25ertopeerB.aertopeerA.HDLCB.FrameRelayC.X.25ertopeerB.aertopeerertoA.aprimaryionB.oneormoreprimaryC.asecondaryionD.oneo

4、rmoresecondaryA.aprimaryionB.oneormoreprimaryC.asecondaryionD.oneormoresecondaryA.halfduplexB.fullC.halforfullduplexD.halfandfull：8、TheSimpleNetworkManagementProtocolSNMP)isan_(1)_testheexchangeofmanagementinformationn _(1)_.ItispartofControlernetProtocol(TCP/IP)protocolsuite.SNMPnetwork_(1)_ttomanagenetworkperformance,findandsolenetworkproblems,andforAnSNMP-managednetworkconsistsofthreekeycomponents:managed,_(1)_,andnetwork-managementsystemsA.PhysicalLayerB.LinkC.NetworkLayerD.TransportA.PhysicalLayerB.LinkC.NetworkLayerD.TransportA.networkionsB.networkC.networkD.n