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2014年6月17日星期二

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NO.1 Which two are accurate statements? (Choose two.)
A. NBX 100 supports 48 VTLs
B. NBX V5000 supports 48 VTLs
C. NBX V3000 supports 48 VTLs
D. NBX V5000 supports 72 VTLs
Answer: BC

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NO.2 Which four Call Forward user settings are available to a user logged into NetSet on a NBX
Communication System? (Choose four.)
A. Forward calls to voicemail box
B. Forward calls to an e-mail inbox
C. Disconnect (no forwarding) calls
D. Forward calls to another phone number
E. Forward calls to an Automated Attendant
F. Do not ring, which places the caller into voice mail
G. Forward calls to the LCD Directory so the caller can contact another employee if they choose
Answer: ACDE

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NO.3 Which three best describe PRI QSIG? (Choose three.)
A. For use on PSTN only
B. Is a proprietary 3Com protocol
C. Designed for IP-PBX to TAPI Server
D. For use on private lines, leased lines or VPN only
E. Optimized for inter-PBX signaling for tie line support
F. Requires clocking (Master mode) by one end station (PBX)
Answer: DEF

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NO.4 How does the NBX administrator load a local country Dial Plan, for example, Norway or Portugal?
A. Dial Plan / Tables/ User-Defined File ?select country and click Import
B. Dial Plan / Operations/ User-Defined File ?select country and click Import
C. Dial Plan / Tables/ Default File ?select country from drop-down menu and click Import
D. Dial Plan / Operations/ Default File ?select country from drop-down menu and click Import
Answer: D

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NO.5 Which three are true statements concerning Silence Suppression? (Choose 3.)
A. Enabling Silence Suppression prioritizes voice traffic
B. Can be enabled or disabled for the entire system only
C. Can be enabled or disabled only for individual telephones
D. Enabling Silence Suppression reduces network traffic
E. Can be enabled or disabled for the entire system, or for individual telephones and line card ports
F. A device that detects silence in a conversation will not send any packets to the other device during the
period of silence
G. A device that detects silence in conversation sends a small packet with a "silence indicator,"rather than
a full packet of "digitized silence"
Answer: DEG

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NO.6 Which four are features of the NBX Analog Line Card? (Choose four.)
A. An NBX V5000 chassis supports only one Analog Line card at a time
B. The NBX Auto Discover Line Cards function can be used to find newly installed Analog Line Cards
C. In Key System Mode, CO lines connected to an Analog Line Card can be mapped to one or more
telephones
D. Its Power Failure Jack provides access to the telephone CO in case of a NBX power failure
E. By default, when a port is mapped to multiple telephones, calls will ring at the lowest extension first,
then to the next extension, until the call is
Answered
F. In PBX System Mode, CO lines connected to an Analog Line Card are pooled and allocated by the Call
Processor for use by any phone for outbound calls
G. In Hybrid Mode, incoming calls go to an Auto Attendant only and CO lines are pooled and allocated by
the Call Processor for use by any phone on the system
Answer: BCDF

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NO.7 Which four are features of the NBX QSIG Basic Service support? (Choose four.)
A. Recommended for use on a PSTN public network
B. Passes Caller ID information across QSIG tie lines
C. NBX system only functions in Slave Mode operation
D. Used to nest traditional PBX systems behind an NBX
E. Supports fractional QSIG on the NBX Digital Line Cards
F. Optimized for inter-PBX signaling, useful for implementing tie trunks
G. Connects 3rd party PBX systems with Master Mode support to an NBX system
Answer: BCFG

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NO.8 Which three office-to-office and/or office-to-remote user call options are supported by the NBX systems?
(Choose three.)
A. With a single NBX system at HQ, users can call to/from a remote office across the data network WAN
link using Layer 3 IP communications
B. With a NBX Network Call Processor (NCP) and NBX ConneXtions Gateways at each site, users can
call to/from the sites via a Virtual Tie Line (VTL)
C. With a single NBX system at HQ and pcXset on the remote office PC, the remote user can call to/from
HQ via any WAN link using TCP/IP Layer 4 communications
D. With a NBX Network Call Processor (NCP) at each location, users can call to/from the sites via a
Virtual Tie Line (VTL) using IP On-the-Fly or a Standard IP license
E. With a NBX system and NBX ConneXtions Gateways at each location, users can call to/from the sites
via a WAN link that supports IP protocol, for example, VPN, T1, E1 and Frame Relay
Answer: ADE

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2014年4月18日星期五

IT-Tests.com 3COM 3M0-250 exam practice questions and answers

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Exam Code: 3M0-250
Exam Name: 3COM (3Com Certified Enterprise LAN Post-Sales Expert version 1.0)
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Total Q&A: 50 Questions and Answers
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NO.1 Which two are functions of Extensible Authentication Protocol (EAP)? (Choose two.)
A.Provides a framework and transport for the exchange of authentication information between the
authenticator and the supplicant
B.Provides encapsulation for the exchange of information between the authenticator and authentication
server
C.Provides the mechanism for locking/unlocking a switch port based on the results of the supplicants
authentication
D.Provides the mechanism for defining what network resources a user may access based on the
authentication information
Answer: AB

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NO.2 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

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NO.3 How must the MAC Radius Authenticated Device Access (RADA) address be configured on the
Switch 5500?
A.Hexadecimal IP address only
B.Hexadecimal MAC address only
C.Binary or hexadecimal IP or MAC address
D.Binary, decimal or hexadecimal MAC address
Answer: B

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NO.4 What is the result of the command boot boot-loader file-url?
A.Reboots the switch using the file-url for the operational code
B.Updates the switch BootROM with the file-url on the system flash
C.Reboots the switch fabric only using the file-url for the operational code
D.Specifies the switch to use file-url for the operational code on the next boot
Answer: D

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NO.5 An IP address must be configured on a switch before it can be managed using Telnet.
A. True
B. False
Answer: A

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NO.6 You have already configured and enabled individual switch ports for IEEE 802.1X Network Login.
What is required for authentication to be activated on the ports?
A.From the System View, enable 802.1X Network Login
B.From the Ethernet Port View, set the port access control mode
C.From the System View, configure the authentication method for 802.1X users
D.From the Ethernet Port View, configure the authentication method, i.e., chap, pap, eap, etc.
Answer: A

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NO.7 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

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NO.8 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
D.The Autonomous System Border Router (ASBR) connects each OSPF area to the main backbone
network and communicates with the other areas
Answer: C

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NO.9 Which Switch 5500 PWR LED condition indicates the switch is powered-up and operating normally?
A.Off
B.Green
C.Green flashing
D.Solid green when not transmitting user data and flashing green when transmitting user data
Answer: B

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NO.10 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?
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

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NO.11 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

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NO.12 Click on the exhibit button.
Which Switch 7700 command shows all the hardware and software information on the modules (review
the output shown in the exhibit)?
A.[SW7700] display device
B.[SW7700] display version
C.[SW7700] display interfaces
D.[SW7700] display current-configuration
Answer: B

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NO.13 Which best defines the mechanism of IEEE 802.1X Network Login?
A.An authenticator requests access to network services; the authentication server enforces authentication
before allowing access to the network and validates the supplicant on behalf of the authenticator
B.A supplicant requests access to network services; the authenticator enforces authentication before
allowing access to the network; the authentication server validates the supplicant on behalf of the
authenticator
C.A supplicant requests access to network services; the authentication server enforces authentication
before allowing access to the network; the authenticator validates the supplicant on behalf of the
authentication server
Answer: B

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NO.14 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

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NO.15 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

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NO.16 How would you view the configuration information that is running on a switch?
A.Use the display startup command
B.Use the display version command
C.Use the display saved-configuration command
D.Use the display current-configuration command
Answer: D

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NO.17 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

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NO.18 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

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NO.19 Which security standard is defined by IEEE 802.1X Network Login?
A.Encryption standard for network authorization
B.Port-based Network Access Control protocol standard
C.Extensible Authentication Protocol (EAP) standard for network authorization
D.Authentication, Authorization and Accounting (AAA) standard for network access
Answer: B

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NO.20 Which switch command shows what is installed in the switch and the current operational status?
A.[SW8800-14slot] display device
B.[SW8800-14slot] display system
C.[SW8800-14slot] display startup
D.[SW8800-14slot] display current-configuration
Answer: A

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2014年4月9日星期三

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Exam Code: 3M0-250
Exam Name: 3COM (3Com Certified Enterprise LAN Post-Sales Expert version 1.0)
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Total Q&A: 50 Questions and Answers
Last Update: 2014-04-09

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NO.1 Which Switch 5500 PWR LED condition indicates the switch is powered-up and operating normally?
A.Off
B.Green
C.Green flashing
D.Solid green when not transmitting user data and flashing green when transmitting user data
Answer: B

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NO.2 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

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NO.3 How would you view the configuration information that is running on a switch?
A.Use the display startup command
B.Use the display version command
C.Use the display saved-configuration command
D.Use the display current-configuration command
Answer: D

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NO.4 An IP address must be configured on a switch before it can be managed using Telnet.
A. True
B. False
Answer: A

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NO.5 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?
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

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NO.6 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

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NO.7 You have already configured and enabled individual switch ports for IEEE 802.1X Network Login.
What is required for authentication to be activated on the ports?
A.From the System View, enable 802.1X Network Login
B.From the Ethernet Port View, set the port access control mode
C.From the System View, configure the authentication method for 802.1X users
D.From the Ethernet Port View, configure the authentication method, i.e., chap, pap, eap, etc.
Answer: A

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NO.8 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

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NO.9 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

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NO.10 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
D.The Autonomous System Border Router (ASBR) connects each OSPF area to the main backbone
network and communicates with the other areas
Answer: C

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NO.11 Which security standard is defined by IEEE 802.1X Network Login?
A.Encryption standard for network authorization
B.Port-based Network Access Control protocol standard
C.Extensible Authentication Protocol (EAP) standard for network authorization
D.Authentication, Authorization and Accounting (AAA) standard for network access
Answer: B

3COM   3M0-250 test answers   3M0-250 test

NO.12 What is the result of the command boot boot-loader file-url?
A.Reboots the switch using the file-url for the operational code
B.Updates the switch BootROM with the file-url on the system flash
C.Reboots the switch fabric only using the file-url for the operational code
D.Specifies the switch to use file-url for the operational code on the next boot
Answer: D

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NO.13 Which two are functions of Extensible Authentication Protocol (EAP)? (Choose two.)
A.Provides a framework and transport for the exchange of authentication information between the
authenticator and the supplicant
B.Provides encapsulation for the exchange of information between the authenticator and authentication
server
C.Provides the mechanism for locking/unlocking a switch port based on the results of the supplicants
authentication
D.Provides the mechanism for defining what network resources a user may access based on the
authentication information
Answer: AB

3COM   3M0-250 exam prep   3M0-250 test answers   3M0-250 test

NO.14 Click on the exhibit button.
Which Switch 7700 command shows all the hardware and software information on the modules (review
the output shown in the exhibit)?
A.[SW7700] display device
B.[SW7700] display version
C.[SW7700] display interfaces
D.[SW7700] display current-configuration
Answer: B

3COM   3M0-250   3M0-250   3M0-250   3M0-250 certification training

NO.15 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

3COM   3M0-250   3M0-250 test

NO.16 Which switch command shows what is installed in the switch and the current operational status?
A.[SW8800-14slot] display device
B.[SW8800-14slot] display system
C.[SW8800-14slot] display startup
D.[SW8800-14slot] display current-configuration
Answer: A

3COM exam prep   3M0-250   3M0-250   3M0-250

NO.17 How must the MAC Radius Authenticated Device Access (RADA) address be configured on the
Switch 5500?
A.Hexadecimal IP address only
B.Hexadecimal MAC address only
C.Binary or hexadecimal IP or MAC address
D.Binary, decimal or hexadecimal MAC address
Answer: B

3COM   3M0-250 exam prep   3M0-250

NO.18 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

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NO.19 Which best defines the mechanism of IEEE 802.1X Network Login?
A.An authenticator requests access to network services; the authentication server enforces authentication
before allowing access to the network and validates the supplicant on behalf of the authenticator
B.A supplicant requests access to network services; the authenticator enforces authentication before
allowing access to the network; the authentication server validates the supplicant on behalf of the
authenticator
C.A supplicant requests access to network services; the authentication server enforces authentication
before allowing access to the network; the authenticator validates the supplicant on behalf of the
authentication server
Answer: B

3COM   3M0-250   3M0-250 exam   3M0-250

NO.20 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

3COM   3M0-250   3M0-250 exam

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2014年3月3日星期一

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Exam Code: 3M0-250
Exam Name: 3COM (3Com Certified Enterprise LAN Post-Sales Expert version 1.0)
Free One year updates to match real exam scenarios, 100% pass and refund Warranty.
Total Q&A: 50 Questions and Answers
Last Update: 2014-03-03

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NO.1 You have already configured and enabled individual switch ports for IEEE 802.1X Network Login.
What is required for authentication to be activated on the ports?
A.From the System View, enable 802.1X Network Login
B.From the Ethernet Port View, set the port access control mode
C.From the System View, configure the authentication method for 802.1X users
D.From the Ethernet Port View, configure the authentication method, i.e., chap, pap, eap, etc.
Answer: A

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NO.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

3COM questions   3M0-250 exam prep   3M0-250 certification training   3M0-250   3M0-250 answers real questions

NO.3 How must the MAC Radius Authenticated Device Access (RADA) address be configured on the
Switch 5500?
A.Hexadecimal IP address only
B.Hexadecimal MAC address only
C.Binary or hexadecimal IP or MAC address
D.Binary, decimal or hexadecimal MAC address
Answer: B

3COM   3M0-250   3M0-250 braindump   3M0-250 exam prep   3M0-250 exam prep   3M0-250 questions

NO.4 Which two are functions of Extensible Authentication Protocol (EAP)? (Choose two.)
A.Provides a framework and transport for the exchange of authentication information between the
authenticator and the supplicant
B.Provides encapsulation for the exchange of information between the authenticator and authentication
server
C.Provides the mechanism for locking/unlocking a switch port based on the results of the supplicants
authentication
D.Provides the mechanism for defining what network resources a user may access based on the
authentication information
Answer: AB

3COM   3M0-250 test questions   3M0-250 study guide   3M0-250

NO.5 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?
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

3COM   3M0-250   3M0-250 test answers   3M0-250 exam simulations

NO.6 What is the result of the command boot boot-loader file-url?
A.Reboots the switch using the file-url for the operational code
B.Updates the switch BootROM with the file-url on the system flash
C.Reboots the switch fabric only using the file-url for the operational code
D.Specifies the switch to use file-url for the operational code on the next boot
Answer: D

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NO.7 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

3COM   3M0-250   3M0-250   3M0-250 questions

NO.8 Which switch command shows what is installed in the switch and the current operational status?
A.[SW8800-14slot] display device
B.[SW8800-14slot] display system
C.[SW8800-14slot] display startup
D.[SW8800-14slot] display current-configuration
Answer: A

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NO.9 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

3COM   3M0-250   3M0-250

NO.10 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

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NO.11 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

3COM braindump   3M0-250   3M0-250 test answers   3M0-250

NO.12 Which security standard is defined by IEEE 802.1X Network Login?
A.Encryption standard for network authorization
B.Port-based Network Access Control protocol standard
C.Extensible Authentication Protocol (EAP) standard for network authorization
D.Authentication, Authorization and Accounting (AAA) standard for network access
Answer: B

3COM   3M0-250   3M0-250   3M0-250 practice test   3M0-250

NO.13 Click on the exhibit button.
Which Switch 7700 command shows all the hardware and software information on the modules (review
the output shown in the exhibit)?
A.[SW7700] display device
B.[SW7700] display version
C.[SW7700] display interfaces
D.[SW7700] display current-configuration
Answer: B

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NO.14 An IP address must be configured on a switch before it can be managed using Telnet.
A. True
B. False
Answer: A

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NO.15 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

3COM   3M0-250 practice test   3M0-250

NO.16 How would you view the configuration information that is running on a switch?
A.Use the display startup command
B.Use the display version command
C.Use the display saved-configuration command
D.Use the display current-configuration command
Answer: D

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NO.17 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

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NO.18 Which Switch 5500 PWR LED condition indicates the switch is powered-up and operating normally?
A.Off
B.Green
C.Green flashing
D.Solid green when not transmitting user data and flashing green when transmitting user data
Answer: B

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NO.19 Which best defines the mechanism of IEEE 802.1X Network Login?
A.An authenticator requests access to network services; the authentication server enforces authentication
before allowing access to the network and validates the supplicant on behalf of the authenticator
B.A supplicant requests access to network services; the authenticator enforces authentication before
allowing access to the network; the authentication server validates the supplicant on behalf of the
authenticator
C.A supplicant requests access to network services; the authentication server enforces authentication
before allowing access to the network; the authenticator validates the supplicant on behalf of the
authentication server
Answer: B

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NO.20 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
D.The Autonomous System Border Router (ASBR) connects each OSPF area to the main backbone
network and communicates with the other areas
Answer: C

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2014年3月1日星期六

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Exam Code: 3M0-250
Exam Name: 3COM (3Com Certified Enterprise LAN Post-Sales Expert version 1.0)
Free One year updates to match real exam scenarios, 100% pass and refund Warranty.
Total Q&A: 50 Questions and Answers
Last Update: 2014-03-01

3M0-250 (3Com Certified Enterprise LAN Post-Sales Expert version 1.0) Free Demo Download: http://www.it-tests.com/3M0-250.html

NO.1 Which switch command shows what is installed in the switch and the current operational status?
A.[SW8800-14slot] display device
B.[SW8800-14slot] display system
C.[SW8800-14slot] display startup
D.[SW8800-14slot] display current-configuration
Answer: A

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NO.2 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

3COM pdf   3M0-250   3M0-250   3M0-250 original questions

NO.3 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

3COM original questions   3M0-250   3M0-250   3M0-250

NO.4 Which Switch 5500 PWR LED condition indicates the switch is powered-up and operating normally?
A.Off
B.Green
C.Green flashing
D.Solid green when not transmitting user data and flashing green when transmitting user data
Answer: B

3COM questions   3M0-250   3M0-250

NO.5 Which best defines the mechanism of IEEE 802.1X Network Login?
A.An authenticator requests access to network services; the authentication server enforces authentication
before allowing access to the network and validates the supplicant on behalf of the authenticator
B.A supplicant requests access to network services; the authenticator enforces authentication before
allowing access to the network; the authentication server validates the supplicant on behalf of the
authenticator
C.A supplicant requests access to network services; the authentication server enforces authentication
before allowing access to the network; the authenticator validates the supplicant on behalf of the
authentication server
Answer: B

3COM questions   3M0-250   3M0-250   3M0-250   3M0-250 test questions

NO.6 An IP address must be configured on a switch before it can be managed using Telnet.
A. True
B. False
Answer: A

3COM test   3M0-250 test questions   3M0-250 questions   3M0-250   3M0-250

NO.7 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

3COM   3M0-250   3M0-250 questions   3M0-250

NO.8 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

3COM test   3M0-250 exam simulations   3M0-250

NO.9 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
D.The Autonomous System Border Router (ASBR) connects each OSPF area to the main backbone
network and communicates with the other areas
Answer: C

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NO.10 How must the MAC Radius Authenticated Device Access (RADA) address be configured on the
Switch 5500?
A.Hexadecimal IP address only
B.Hexadecimal MAC address only
C.Binary or hexadecimal IP or MAC address
D.Binary, decimal or hexadecimal MAC address
Answer: B

3COM   3M0-250   3M0-250   3M0-250 questions

NO.11 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?
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

3COM original questions   3M0-250 test answers   3M0-250 pdf   3M0-250   3M0-250

NO.12 Click on the exhibit button.
Which Switch 7700 command shows all the hardware and software information on the modules (review
the output shown in the exhibit)?
A.[SW7700] display device
B.[SW7700] display version
C.[SW7700] display interfaces
D.[SW7700] display current-configuration
Answer: B

3COM original questions   3M0-250   3M0-250

NO.13 You have already configured and enabled individual switch ports for IEEE 802.1X Network Login.
What is required for authentication to be activated on the ports?
A.From the System View, enable 802.1X Network Login
B.From the Ethernet Port View, set the port access control mode
C.From the System View, configure the authentication method for 802.1X users
D.From the Ethernet Port View, configure the authentication method, i.e., chap, pap, eap, etc.
Answer: A

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NO.14 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

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NO.15 What is the result of the command boot boot-loader file-url?
A.Reboots the switch using the file-url for the operational code
B.Updates the switch BootROM with the file-url on the system flash
C.Reboots the switch fabric only using the file-url for the operational code
D.Specifies the switch to use file-url for the operational code on the next boot
Answer: D

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NO.16 How would you view the configuration information that is running on a switch?
A.Use the display startup command
B.Use the display version command
C.Use the display saved-configuration command
D.Use the display current-configuration command
Answer: D

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NO.17 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

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NO.18 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

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NO.19 Which security standard is defined by IEEE 802.1X Network Login?
A.Encryption standard for network authorization
B.Port-based Network Access Control protocol standard
C.Extensible Authentication Protocol (EAP) standard for network authorization
D.Authentication, Authorization and Accounting (AAA) standard for network access
Answer: B

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NO.20 Which two are functions of Extensible Authentication Protocol (EAP)? (Choose two.)
A.Provides a framework and transport for the exchange of authentication information between the
authenticator and the supplicant
B.Provides encapsulation for the exchange of information between the authenticator and authentication
server
C.Provides the mechanism for locking/unlocking a switch port based on the results of the supplicants
authentication
D.Provides the mechanism for defining what network resources a user may access based on the
authentication information
Answer: AB

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2014年2月2日星期日

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NO.1 Which Switch 5500 model(s) supports a 96 Gbps full-duplex XRN stacking connection?
A.Switch 5500-SI
B.Switch 5500-EI
C.Switch 5500G-EI
D.All of the above
Correct:C

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NO.2 Click the Task button. Drag each Switch 5500 model to the recommended customer environment.
Correct:
Green choice3---->Yellow Choice3
Green choice1---->Yellow Choice2
Green choice2---->Yellow Choice1

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NO.3 Click the Task button. Drag each Switch 5500 model to the set of hardware features it supports.
Correct:
Green choice4---->Yellow Choice4
Green choice1---->Yellow Choice3
Green choice3---->Yellow Choice2
Green choice2---->Yellow Choice1

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NO.4 Which three features are only supported on the Switch 5500G-EI switch models? (Choose three.)
A.Port-based VLANs
B.24 or 48 10/100/1000 Mbps ports
C.PoE upgradeable power supply unit
D.Hot-swappable Application Module Slot
E.Four GBIC Small Form-factor Plug-in (SFP) ports
Correct:B C D

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NO.5 Using 3Com's XRN technology, you can mix Switch 5500-SI and Switch 5500-EI model switches
to create a single switch stack.
A.True
B.False
Correct:B

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2013年9月5日星期四

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NO.1 Click the Task button. Drag each Switch 5500 model to the recommended customer environment.
Correct:
Green choice3---->Yellow Choice3
Green choice1---->Yellow Choice2
Green choice2---->Yellow Choice1

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NO.2 Click the Task button. Drag each Switch 5500 model to the set of hardware features it supports.
Correct:
Green choice4---->Yellow Choice4
Green choice1---->Yellow Choice3
Green choice3---->Yellow Choice2
Green choice2---->Yellow Choice1

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NO.3 Using 3Com's XRN technology, you can mix Switch 5500-SI and Switch 5500-EI model switches
to create a single switch stack.
A.True
B.False
Correct:B

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NO.4 Which three features are only supported on the Switch 5500G-EI switch models? (Choose three.)
A.Port-based VLANs
B.24 or 48 10/100/1000 Mbps ports
C.PoE upgradeable power supply unit
D.Hot-swappable Application Module Slot
E.Four GBIC Small Form-factor Plug-in (SFP) ports
Correct:B C D

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NO.5 Which Switch 5500 model(s) supports a 96 Gbps full-duplex XRN stacking connection?
A.Switch 5500-SI
B.Switch 5500-EI
C.Switch 5500G-EI
D.All of the above
Correct:C

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