642-980無料問題集「Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT)」

質問 1

It has been determined that unknown unicast, multicast, and broadcast traffic is not correctly being switched through either Nexus 7010 switch. Which statement best describes the cause of this issue?

（A）The MST STP is not enabled on either switch.

（B）No VLANs are allowed across the vPC peer link.

（C）The default VLAN is inactive.

（D）VTP is not configured to handle this type of traffic.

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

Refer to the exhibit.

A customer reports that a virtual server that is running on UCS C460 A fails to access another virtual server that is running on UCS C460 B. You discover that the virtual machines in VLAN 20 fail to communicate with any of the virtual machines in VLAN 22. The virtual machines in other VLANs can communicate with each other. You verify the IP configuration and discover that the Spanning Tree Protocol setting a correct. Traffic filtering and the firewall are disabled. Which option is the most likely cause of the communication problem?

（A）Cisco FabricPath licensing on one of the switches supports only 19 VLANs.

（B）VLAN 20 and VLAN 22 use reserved VLAN values.

（C）VLAN 20 and VLAN 22 should be Cisco FabricPath VLANs.

（D）One of the platforms used in the topology supports only 19 VLANs.

正解：C 解答を投票する

質問 3

When you ping your new Cisco Nexus 7010 Switch, you see this output:
!!...!!...!!...!!...!!...
What could be the problem?

（A）CoPP is rate-limiting the pings.

（B）The switch has high CPU utilization.

（C）HSRP is flapping.

（D）Traffic may be taking a bad route through the network.

正解：A 解答を投票する

質問 4

Which command is used to check for potential vPC configuration consistency problems?

（A）show vpc config

（B）show vpc consistency-parameters global

（C）show vpc brief interface

（D）show vpc global config

正解：B 解答を投票する

質問 5

Which two commands will show all the OTV edge devices and their MAC addresses in all sites in the overlay? (Choose two.)

（A）show otv adjacency overlay

（B）show otv site

（C）show mac address-table

（D）show otv adjacency

（E）show otv vlan

正解：A、D 解答を投票する

質問 6

You configure a Cisco Network Assistant on a server. You discover that the vFC on a Cisco
Nexus switch remains in an initializing state. Which command do you use to identify whether the Cisco Network Assistant supports PFC, and whether PFC is enabled?

（A）show lldp interface ethernet 1/1

（B）show platform software fcoe_mgr info interface vfc 1

（C）show interface ethernet 1/1

（D）show system internal dcbx info interface ethernet 1/1

正解：D 解答を投票する

質問 7

Which statement is true regarding LACP configuration?

（A）After removing LACP configuration, you need to reboot the device.

（B）You can disable LACP while any LACP configurations are present.

（C）With LACP, you can bundle up to 16 interfaces in a channel group.

（D）LACP configuration is global and can be only configured by admin.

正解：C 解答を投票する

質問 8

Which statement is true regarding Cisco FabricPath?

（A）If the Cisco FabricPath feature is not installed, the fabricpath keyword will be available in the feature-set command.

（B）It is necessary to first install the Cisco FabricPath feature set in the default VDC.

（C）Cisco FabricPath cannot be disabled explicitly for a specific VD

（D）Cisco FabricPath is only available on Cisco Nexus 7010 Switches with the Supervisor 2 engine.

正解：B 解答を投票する

質問 9

You discover that you have a VDC in a failed state. Which option is a possible cause of the failure?

（A）The VDC allocation failed due to a misconfigured resource template.

（B）A supervisor switchover occurred and the switchover policy was set to bring down the
VDC.

（C）An administrator took the VDC offline to free up resources for another VDC.

（D）The system has insufficient resources to bring the VDC online.

正解：B 解答を投票する

質問 10

In Cisco NX-OS releases prior to 5.2, how should the copp-system-p-policy policy be modified to change how the supervisor module is protected from DoS attacks?

（A）Modify the policy map type control-plane copp-system-policy.

（B）Re-run the setup utility and apply a new CoPP profile.

（C）In Cisco NX-OS versions prior to 5.2, the CoPP system profile can only be modified from the CMP CLI.

（D）Open DCNM and modify the "copp-system-p-policy" policy object.

正解：B 解答を投票する

642-980 無料問題集「Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT)」

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