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JN0-120 问题列表
问题
单选题The policy action of color is used for congestion control under which circumstance?（）A
congestion in an upstream routerB
congestion in a downstream routerC
contention for queue space on an egress interfaceD
contention for queue space on an ingress interface
问题
单选题A service provider is operating a Routed 1483 network where the ATM PVCs are treated as a large subnet.What is a consequence of this configuration？（）A
ItburnsupIPaddresses.B
ItconservesIPaddresses.C
Itresultsinasmallerroutingtable.D
EachPVChasaseparate/30subnet
问题
单选题What is the proper command to create a DHCP address pool?（）A
ip local-poolB
ip local poolC
ip dhcp local poolD
ip dhcp-local pool
问题
单选题Which process occurs first during the Ethernet Discovery Stage process for a PPPoE service offering?（）A
The ERX router sends an Active Discovery Offer message.B
The ERX router sends an Active Discovery Initiation message.C
The customer device sends an Active Discovery Offer message.D
The customer device sends an Active Discovery Initiation message
问题
单选题Which profile configuration command dynamically creates a host route in the routing table?（）A
ip host routesB
ip access-routesC
host routes enabledD
access-routes enabled
问题
单选题By default,how does the router handle changes to its operational configuration?（）A
Changes are not implemented,but are saved automatically.B
Changes are no timplemented and must be written into memory.C
Changes are implemented immediately and save dautomatically.D
Changes are implemented immediately,but must be written intomemory.
问题
单选题Which function enforces logical data throughput rates that are below the actual physical line rate of a port?（）A
rate limitingB
data policingC
classificationD
bandwidth limiting
问题
单选题In a Bridged 1483 network,which set of configuration commands allows the router to forward requests from the PC to an external DHCP server at 1.1.1.1?（）A
set dhcp relay set dhcp server 1.1.1.1B
set dhcp relay agent set dhcp relay 1.1.1.1C
enable dhcp relay enabled hcp server 1.1.1.1D
enable dhcp relay agent enable dhcp relay 1.1.1.1
问题
单选题Which profile configuration command dynamically creates a host route in the routing table?（）A
ip host routesB
ip access-routesC
host routes enabledD
access-routes enabled
问题
单选题Which type of cable is required to access the router’s console port from a PC？（）A
modemB
EthernetC
nullmodemD
straight-through
问题
单选题Which command parameter configures a password of connection-to-lac for an L2TP tunnel on an LNS?（）A
l2tp password connection-to-lacB
local password connection-to-lacC
tunnel password connection-to-lacD
server password connection-to-lac
问题
多选题You are configuring a PPP over Ethernet service offering.Which two type s of interfaces can be dynamically created with aprofile？（）AIPBATMCPPPoADPPPoE
问题
单选题You have 50 subscribers accessing a LAC to connectto ISP1.com.What is the L2TP Control Connections and Sessions for the subscribers?（）A
A single Control Connection and a single SessionB
A single Control Connection and multiple Sessions(one pers ubscriber)C
Multiple Control Connections and a single SessionD
Multiple Control Connections and multiple Sessions(one per subscriber)
问题
多选题What are the two stages of PPP over Ethernet?（）APPP Session stageBPPPoE Search StageCPPPoE Discovery StageDPPP Confirmation stage
问题
单选题A Bridged 1483 network is grouping DSL users into a single subnet.Where must the CPE work station’s default gateway point？（）A
ERX ATM IP addressB
DSL router IP addressC
DSL bridge IP addressD
ERX loopback address