证券公司为客户融券交易属于（)。A．内幕交易B．操纵市场C．欺诈客户D．信用交易

A.STPtimersvalues（hello，forwarddelay，maxage）areincludedineachBPDU.

B.AswitchisnotconcernedaboutitslocalconfigurationoftheSTPtimersvalues.ItwillonlyconsiderthevalueoftheSTPtimerscontainedintheBPDUitisreceiving.

C.TosuccessfullyexchangeBPDUsbetweentwoswitches，theirSTPtimersvalue（hello，forwarddelay，maxage）mustbethesame.

D.IfanySTPtimervalue（hello，forwarddelay，maxage）needstobechanged，itshouldatleastbechangedontherootbridgeandbackuprootbridge.

E.Onaswitchednetworkwithasmallnetworkdiameter，theSTPhellotimercanbetunedtoalowervaluetodecreasetheloadontheswitchCPU.

F.TherootbridgepassesthetimerinformationinBPDUstoallroutersintheLayer3configuration.

y all - links command. The variance 200 command is configured, but no other related commands are configured. Which of the following rules are true regarding R1‘s decision of what r outes to add to the IP routing table?Note that RD refers to reported distance and FD to feasible distanc E.（）

A. Adds all routes for which the metric is <= 200 * the best metric among all routes

B. Adds all routes because of the ridiculously high variance setting

C. Adds all successor and feasible successor routes

D. Adds all successor and feasible successor routes for which the metric is<=200 * the best metric among all routes

0sandwouldliketocontroltheselectionoftherootbridge.Whichswitchshouldtheadministratorconfigureastherootbridgeandwhichconfigurationcommandmusttheadministratorentertoaccomplishthis？（）

A.DSW11（config）#spanning-treevlan1priority4096

B.DSW12（config）#setspanning-treepriority4096

C.ASW13（config）#spanning-treevlan1priority4096

D.DSW11（config）#setspanning-treepriority4096

E.DSW12（config）#spanning-treevlan1priority4096

F.ASW13（config）#setspanning-treepriority4096

enter subnets.Which one of the following commands is most likely to show you all the possible next - hop IP addresses for these four possible routes?（）

A. show ip eigrp topology

B. show ip eigrp topology all - links

C. show ip route eigrp

D. show ip route eigrp all - links

E. show ip eigrp topology all - learned

A.DSW11willbeelectedtherootbridge.

B.DSW12willbeelectedtherootbridge.

C.ASW13willbeelectedtherootbridge.

D.P3/1willbeelectedthenondesignatedport.

E.P2/2willbeelectedthenondesignatedport.

F.P3/2willbeelectedthenondesignatedport.

A. The first DHCP client to connect to the FastEthernet 0/1 interface will receive the IP address 10.10.0.1.

B. DHCP requests received on the FastEthernet 0/1 interface will be forwarded to 10.0.0.2.

C. The first DHCP client to connect to the FastEthernet 0/0 interface will receive the IP a ddress 10.0.0.1

D. The first DHCP client to connect to the FastEthernet 0/0 interface will receive the IP address 10.0.0.6.

E. Hosts connected to the FastEthernet0/1 interface will not receive DHCP replies from the router.

A.Uponbootup，aporttransitionsfromblockingtoforwardingbecauseitassumesitselfasroot.

B.Uponbootup，aporttransitionsfromblockingtolisteningbecauseitassumesitselfasroot.

C.Uponbootup，aporttransitionsfromlisteningtoforwardingbecauseitassumesitselfasroot.

D.IfaforwardingportreceivesnoBPDUsbythemax_agetimelimit，itwilltransitiontolistening.

E.IfaforwardingportreceivesaninferiorBPDU，itwilltransitiontolistening.

F.IfablockedportreceivesnoBPDUsbythemax_agetimelimit，itwilltransitiontolistening.

per - address interface configuration command if the configuration has not been modified by the ip forward - protocol udp global con figuration command?（）

A. BOOTP

B. TFTP

C. ARP

D. DNS

E. proxy - ARP

F. FTP

xchanging routing information. The network design requires that R1 r eceive routing updates from R2, but not advertise any routes to R2. Which configuration command sequence will successfully accomplish this task? （）

A. R1(config)# router eigrp 1 R1(config - router)# passive - interface serial 0

B. R1(config)# access - list 2 0 deny any R1(config)# router eigrp 1 R1(config - router)# distribute - list 20 out serial 0

C. R2(config)# access - list 20 permit any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 in serial 0

D. R1(config)# access - list 20 permit any R 1(config)# router eigrp 1 R1(config - router)# distribute - list 20 in serial 0

E. R2(config)# access - list 20 deny any R2(config)# router eigrp 1 R2(config - router)# distribute - list 20 out serial 0

F. R2(config)# router eigrp 1 R2(config - router)# passive - interface serial 0

Inacustomer’snetwork，VLANTrunkingProtocol（VTP）isrunningwithadomainnamedmain1.VLANs1，2，3，4，5，10，20areactiveonthenetwork.Suddenlythewholenetworkgoesdown.NotrafficisbeingpassedonVLANs2，3，4，5，10，20，howevertrafficpassesonVLAN1andindicatesallswitchesareoperational.Rightbeforethenetworkproblemoccurred，aswitchnamedTEST1wasaddedtothenetwork.WhatthreeconfigurationissuesonTEST1couldbecausingthenetworkoutage？（）

A.TEST1isconfiguredasaVTPserverwithadifferentdomainname.

B.TEST1isnotconfiguredtoparticipateinVTP.

C.TEST1isconfiguredasaVTPserverwiththedomainnamemain1.

D.TEST1hasalowerVTPconfigurationrevisionthanthecurrentVTPrevision.

E.TEST1hasahigherVTPconfigurationrevisionthanthecurrentVTPrevision.

F.TEST1isconfiguredwithonlyVLAN1.