642-980 Latest Exam (Aug 2018)

[Free] 2018(Aug) Dumps4cert Cisco 642-980 Dumps with VCE and PDF Download 21-30

August 21, 2018

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Troubleshooting Cisco Data Center Unified Fabric

Question No: 21

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Dumps4Cert 2018 PDF and VCE

Dumps4Cert 2018 PDF and VCE

Dumps4Cert 2018 PDF and VCE

Dumps4Cert 2018 PDF and VCE

Which statement is true regarding the port channel 100 and 101 configurations between the Nexus 7010 switches?

  1. The vPC assignments on N7010-C2 are incorrectly swapped

  2. N7010-C1 is not allowing any active VLAN traffic to pass on Po100 and Po101.

  3. LACP is not configured to initiate negotiations.

  4. The vPC peer-keepalive is down between the two Nexus 7000 switches.

Answer: A Explanation:

The vPC assignments on N7010-C2 are incorrectly swapped.

The “show vpc” command will show you that the keepalives are active, and that there are active VLANs. The “show port-channel summary” command shows that LACP is enabled.

Question No: 22

Refer to the exhibit.

Dumps4Cert 2018 PDF and VCE

Which two commands are missing to enable OTV between N7K-A and N7K-B? (Choose two.)

  1. otv site-vlan on both N7Ks

  2. create vlan 5-10

  3. enable virtual port-channel on vlan 5-10

  4. enable eigrp on both N7Ks

  5. enable hsrp feature

Answer: A,B

Question No: 23

Which two conditions can prevent FCoE from functioning properly across a link? (Choose two.)

  1. LLDP is disabled.

  2. PFC was negotiated across the link.

  3. DCBX is enabled on the device.

  4. The VFC interface is down.

  5. The VSAN trunking protocol was enabled.

Answer: A,D

Question No: 24

Which statement is true regarding LACP configuration?

  1. With LACP, you can bundle up to 16 interfaces in a channel group.

  2. LACP configuration is global and can be only configured by admin.

  3. After removing LACP configuration, you need to reboot the device.

  4. You can disable LACP while any LACP configurations are present.

Answer: A

Question No: 25

Which two statements are true regarding vPC configuration? (Choose two.)

  1. With vPC, there are no blocked ports.

  2. vPC uses hash-based EtherChannel load balancing.

  3. There are STP-blocked redundant links.

  4. There is VLAN-based load balancing.

  5. There is higher oversubscription.

Answer: A,B

Question No: 26

You use Ethanalyzer to trace FIP. You discover that the VLAN ID and the VSAN ID that appear in Ethanalyzer do not match the actual network configuration. Which option is the most likely cause of the problem?

  1. Ethanalyzer shows canonical VLAN and VSAN.

  2. The Ethanalyzer drivers must be updated.

  3. The link experiences FIP errors.

  4. DCBX is misconfigured.

Answer: A

Question No: 27

Which private VLAN port type allows for the least amount of communication from that port to others?

  1. protected

  2. isolated

  3. community

  4. promiscuous

Answer: B

Question No: 28

Which command shows failed validation commands when configurations are not merging between two switches while configuration synchronization feature on the Cisco Nexus 5548 Series Switches?

  1. # show configuration session summary

  2. # show switch-profile status

  3. # show configuration session lt;namegt;

  4. # show switch-profile peer

Answer: B

Question No: 29

Refer to the exhibit.

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An administrator is trying to configure a port channel on a Cisco Nexus 7000 Series Switch, which is connected to a Cisco Nexus 5500 Series Switch. The port channel will not come up, so the administrator executes the show port-channel summary command on the Cisco Nexus 7000 Series Switch and displays the output.

What are two causes of the error? (Choose two.)

  1. The Cisco Nexus 7000 Series Switch needs to be configured with no lacp suspend- individual.

  2. The Cisco Nexus 5500 Series Switch is configured with channel-group mode on.

  3. The LACP feature has not been enabled on the Cisco Nexus 7000 Series Switch.

  4. The ports are cabled to the wrong switch.

  5. The port channel load-balancing algorithm does not match.

Answer: B,D

Question No: 30

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Dumps4Cert 2018 PDF and VCE

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FCoE traffic from C200-1 on VSAN 13 is not being switched through the network. Which statement explains the cause of the problem?

  1. The LAN switchport on N5K2 must be configured as a trunk.

  2. VLAN 1013 on N5K2 is not allowed on the LAN.

  3. The vFC on N5K2 that is associated with VSAN 13 is in the wrong port mode.

  4. The M1 card on the Nexus 7000 switch does not support FCoE.

Answer: D

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