摘要:3M0-250:3Com Certified Enterprise LAN Post-Sales Expert version 1.0
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1. You have issued the switch debugging command debugging rip packets from the management terminal,
but you are not receiving any debug output. What is the reason you are not getting any debug output from
the switch?
A.RIP has not been enabled, and therefore there is no debug output
B.Output from the debugging command only goes to the syslog server
C.You forgot to issue the enable debugging command at the System View
D.You forgot to issue the terminal debugging command, directing the output to your management terminal
Answer: D
2. Which two are general Link Aggregation (LA) configuration rules that must be followed when creating
an LA group? (Choose two.)
A.A member link port can only belong to one LA group
B.Aggregated links are mutually exclusive with roving analysis and mirror ports
C.A port must be configured for resilient links before it can be configured as a member of an LA group
D.LA ports can only be configured if Link Aggregation Control Protocol (LACP) is enabled on the switches
Answer: AB
3. GARP VLAN Registration Protocol (GVRP) maintains and distributes Virtual LAN (VLAN) registration
information only about the dynamically created VLANs using GARP.
A. True
B. False
Answer: B
4. You have configured multiple OSPF areas on your network. How do the different OSPF areas
communicate with each other?
A.The Designated Router (DR) uses multicast routing to broadcast advertisements to the other area DRs
B.The Designated Router (DR) connects each OSPF area to the main backbone network and
communicates with the other areas
C.The Area Border Router (ABR) connects each OSPF area to the main backbone network and
communicates with the other areas The safer , easier way to help you pass any IT exams.
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D.The Autonomous System Border Router (ASBR) connects each OSPF area to the main backbone
network and communicates with the other areas
Answer: C
5. An IP address must be configured on a switch before it can be managed using Telnet.
A. True
B. False
Answer: A
6. What is the effect of the Simple Network Management Protocol (SNMP) switch command snmp-agent
target-host trap address udp-domain 129.102.149.23 udp-port 5000 params securityname 3comprivate?
A.Configures the switch with a default community string name of 3comprivate
B.Enables the SNMP trap functions on a switch with IP address 129.102.149.23
C.Configures the switch SNMP agent to send traps to the network management station at IP address
129.102.149.23
D.Enables the SNMP trap functions and sets the default community string name of 3compublic on a
switch with IP address 129.102.149.23
Answer: C
7. Which three are Switch 5500 configuration requirements when creating an eXpandable Resilient
Networking (XRN) Fabric? (Choose three.)
A.All units in the stack must have the same sysname
B.All units in the stack must be running the same software version
C.A mixture of switch models can be used to create a single XRN Fabric
D.Switch 5500-SI/EI up/down ports must be enabled for fabric mode
E.A switch must be initialized after it has been added to an existing XRN Fabric
Answer: ABD
8. What is the reason to connect the up port on the bottom Switch 5500 in the stack to the down port of
the top Switch 5500 in the same stack? The safer , easier way to help you pass any IT exams.
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A.Reliability - creates a resilient topology
B.Security - prevents an unauthorized user from connecting to the switch stack
C.Performance - creates the 48-Gbps eXpandable Resilient Networking (XRN) Fabric
D.Management - enables Distributed Resilient Routing (DRR) on the Switch 5500-SI
Answer: A
9. How does the network administrator configure the up/down Switch 5500-EI/SI ports to operate in fabric
mode?
A.By default, the up/down ports are enabled for fabric mode
B.Execute the command xrn-fabric authentication-mode simple
C.Execute the command resilient-arp enable x/x/x where x/x/x identifies the unit and port number
D.Execute the command fabric-port gigabit x/x/x enable where x/x/x identifies the unit and port number
Answer: D
10. Which Switch 5500 model(s) does not support Distributed Resilient Routing (DRR)?
A.Switch 5500-EI
B.Switch 5500-SI
C.Switch 5500G-EI
D.All of the above
Answer: B