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2018 Apr Cisco Official New Released 642-980
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Troubleshooting Cisco Data Center Unified Fabric
Question No: 81
Refer to the exhibit.
The server port connected to the NPV edge switch does not come online. Which action should fix the problem?
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Move the NP ports on the NPV edge and the F ports on the NPIV into the same VSAN 99.
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Move the NP ports on the NPV edge and the F ports on the NPIV in the default VSAN 1.
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Move all the ports into VLAN 1.
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Move all the ports into VSAN 99.
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Move all the ports into VLAN 99.
Answer: A
Question No: 82
When configuring LLDP on Cisco Nexus 5548 Switch, what is the purpose of LLDP hold time global configuration command?
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LLDP holdtime option is to set the length of time in milliseconds that a device should save LLDP information received before discarding it.
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LLDP holdtime option is to set the length of time in seconds that a device should save LLDP information received before discarding it.
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LLDP holdtime option is to set the length of time in milliseconds to wait before performing LLDP initialization on any interface.
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LLDP holdtime option is to set the length of time in seconds to wait before performing LLDP initialization on any interface.
Answer: B
Question No: 83
Which statement is true regarding Cisco FabricPath?
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It is necessary to first install the Cisco FabricPath feature set in the default VDC.
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Cisco FabricPath is only available on Cisco Nexus 7010 Switches with the Supervisor 2 engine.
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Cisco FabricPath cannot be disabled explicitly for a specific VDC.
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If the Cisco FabricPath feature is not installed, the fabricpath keyword will be available in the feature-set command.
Answer: A
Question No: 84
Refer to the exhibit. Which two options are causes of the error when setting up VM-FEX on the Cisco UCS B-Series Blades? (Choose two.)
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Dynamic vNICs are not supported on the version the admin is running.
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The network adapter in the blade does not support dynamic vNICs.
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Too many dynamic vNICs are configured.
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Dynamic vNICs are not required for VM-FEX.
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The dynamic vNIC connection policy was never applied to the service profile.
Answer: B,C
Question No: 85
Fibre Channel traffic on VSAN 12 between N5K2 and MDS9124-2 is degraded. Which statement explains the cause of this degradation?
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Performance is decreased by half due to the incorrect port type being used.
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The load-balancing scheme for VSAN 12 should be src-id/dst-id.
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B2B credits on N5K2 should be increased to 128.
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A VSAN port channel must be configured between N5K2 and MDS9124-2.
Answer: D
Question No: 86
Refer to the exhibit.
What command should you execute next in resolving a lock failure?
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ntp execute
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ntp commit
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ntp lock
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ntp help
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ntp detail
Answer: B
Question No: 87
Refer to the exhibit.
During a VSAN outage, you come across this configuration. Please select two possible causes? (Choose two)
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no common VSANs on both switches
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no common trunks
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no common VSAN members in the same trunk
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VSANs in trunk are the same, but the trunk is not up
Answer: A,C
Question No: 88
There is an ARP storm in VDC 1. Some users on VDC 2 notice that ARP is not resolving for their gateway on the Cisco Nexus core. What is the cause?
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The ARP CoPP class committed information rate is exceeded, resulting in ARP loss in all VDCs.
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The administrator has not correctly configured the ARP CoPP class in VDC 2.
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The ARP traffic in VDC 1 is copied to the host ports in VDC 2, causing overutilization and output discards.
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Because the ARP process in the default VDC (VDC 1) is responsible for processing ARP traffic for all VDCs, VDC 2 will be affected.
Answer: A
Question No: 89
Refer to the exhibit.
A customer is having problems with NPV. Which of these is the cause of the problem?
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No server was requested or received by the FLOGI database.
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One external link must be up for server interface to be up.
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Internal links are down and must be up for the server interface to be up.
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VSANs are misconfigured on the upstream ports.
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VLANs are misconfigured on the upstream ports.
Answer: D
Question No: 90
Which action do you take to determine why the interface e1/10 is not present in the Core VDC for configuration?
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Check to see if vPC is enabled.
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Check in core VDC to see if the port e1/10 is allocated.
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Check to see if the cable is connected to the e1/10 interface.
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Check in admin VDC to see if the port e1/10 is allocated.
Answer: D
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