單項(xiàng)選擇題

After configuring FabricPath, the following appears in the syslog: 
%STP-2-L2GW_BACKBONE_BLOCK: L2 Gateway Backbone port inconsistency blocking port port-channel100 on VLAN0010. 
What is the cause of this message? ()

   

A. STP must be disabled; message indicates that STP is enabled.
B. STP is misconfigured; root guard must be disabled.
C. An inferior BPDU is received on a Cisco FabricPath edge port.
D. A superior BPDU is received on a Cisco FabricPath edge port.


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2.多項(xiàng)選擇題The hardware and software configurations for vPC+ are similar to that of traditional vPC. What are the differences in the configuration of vPC+? ()

A. FabricPath switch ID must be configured under the vPC domain.
B. Virtual switch ID of vPC+ must be configured under FabricPath domain.
C. On Cisco Nexus 7000 Series Switch, F1 interfaces must be used as the vPC+ peer links.
D. The vPC+ peer link must be configured as a Cisco FabricPath core port (switchport mode fabricpath).
E. FabricPath subswitch ID must be configured under the vPC domain.

3.多項(xiàng)選擇題Cisco NX-OS Software supports SNMPv1, SNMPv2c, and SNMPv3. Both SNMPv1 and SNMPv2c use a community-based form of security. SNMPv3 provides secure access to devices by a combination of authenticating and encrypting frames over the network. Which security features are provided in Cisco NX-OS SNMPv3? ()

A. encryption—scrambles the packet contents to prevent them from being seen by unauthorized sources
B. password—a password (community string) sent in clear text between a manager and agent for added protection
C. authentication—determines that the message is from a valid source
D. message integrity—ensures that a packet has not been tampered with while it was in transit 
E. user—to determine if user authentication is used instead of community strings

4.多項(xiàng)選擇題Overlay Transport Virtualization (OTV) join interface is used to source the OTV encapsulated traffic and send it to the Layer 3 domain of the data center network. Which statements are true about OTV join interface? ()

A. Join interface is a Layer 3 entity, and with the Cisco NX-OS release 6.0, it can only be defined as a physical interface, physical subinterface, Layer 3 port channel, or Layer 3 port channel subinterface.
B. A single join interface can be defined and associated with a given OTV overlay.
C. Multiple overlays can also share the same join interface.
D. Join interface can be a loopback interface.
E. The join interface is a Layer 3 entity that can be defined as a physical interface but not as a logical one.

5.多項(xiàng)選擇題


The network administrator is seeing N7K-1 having issues with VLAN 11, and interface VLAN 11 is resetting, causing frequent HSRP state changes. Which two actions would reduce HSRP state changes? ()

A..On N7K-1,configure the HSRP extended hold timer to 180, extending the HSRP hello message hold time.
B..On N7K-2,configure the HSRP extended hold timer to 180, extending the HSRP hello message hold time.
C..On N7K-1,configure the pre-empt delay minimum to 180 in order to delay N7K-1 from taking over as the HSRP active router.
D..On N7K-2,configure the pre-empt delay minimum to 180 in order to delay N7K-2 from taking over as the HSRP active router.
E..On N7K-2,increase the HSRP priority to 150. 
F. On N7K-2,decrease the HSRP priority to 50.

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