642-980 Latest Exam (Aug 2018)

[Free] 2018(Aug) Dumps4cert Cisco 642-980 Dumps with VCE and PDF Download 91-100

August 21, 2018

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Troubleshooting Cisco Data Center Unified Fabric

Question No: 91

Which two describe the correct requirements for non-disruptive IOS ISSU on Cisco Nexus 7000 Series Switches? (Choose two.)

  1. updated kickstart and system images must be staged in bootflash on single-supervisor


  2. updated kickstart and system images must be staged in bootflash on dual-supervisor switches

  3. low version skew

  4. dual supervisors

  5. clock synchronization

Answer: C,D

Question No: 92

You must check all of the MAC addresses that are learned for the extended VLANs in an OTV environment. Which command must you use?

  1. show otv adjacency

  2. show interface overlay

  3. show otv overlay

  4. show otv route

Answer: A

Question No: 93

You receive a priority 1 trouble ticket that there is OSPF route instability in the data center core Cisco Nexus 7018 Switches. Which command is useful to help validate a theory that hello packets are being throttled?

  1. N7018# show class-map interface control-plane

  2. N7018# show policy-map interface control-plane

  3. N7018# show service-policy interface control-plane

  4. N7018# show copp status

  5. N7018# show copp statistics

  6. N7018# show control-plane class copp-system-class-critical

Answer: B

Question No: 94

Which two commands are used to determine the CoPP profile used on Cisco Nexus 7000 Series? (Choose two.)

  1. #show copp profile

  2. #show copp diff profile

  3. #show copp status

  4. #show running-config copp

  5. #show policy-map interface control-plane

Answer: C,D

Question No: 95

Refer to the exhibit.

Dumps4Cert 2018 PDF and VCE

An administrator sets up a FabricPath network. The administrator tries to ping between two SVI interfaces on the leaf switches 10 and 20, but it fails. What caused the pings to fail?

  1. Switches S10 and S20 do not have F2 modules.

  2. The vPC peer gateway must be enabled on switches S10 and S20.

  3. Switches S1, S2, and S3 should be interconnected directly.

  4. VLAN 10 is not enabled on the spine switches (S1, S2, and S3).

  5. Layer 3 over a vPC peer link is not supported.

Answer: D

Question No: 96

Refer to the exhibit.

Dumps4Cert 2018 PDF and VCE

A customer is having a problem with NPV. Which of these is the cause of the problem?

  1. No server was requested or received by the FLOGI database.

  2. One external link must be up for server interface to be up.

  3. Multiple external links must be up for the server to come up.

  4. Internal links are down and must be up for the server interface to be up.

Answer: B

Question No: 97

Which statement would explain why the overlay interface on an OTV edge device is not in the up state?

  1. The site identifiers are identical within a multihomed site.

  2. Multicast groups are not mapped to a range of SSM addresses to carry the multicast traffic.

  3. An adjacency server is not configured for connectivity over a multicast transport.

  4. The OTV IS-IS metrics do not match across all adjacent OTV edge devices.

Answer: B

Question No: 98

Refer to the exhibit.

Dumps4Cert 2018 PDF and VCE

Customer is having problems with a device in VLAN100? What would fix the problem?

  1. Move the trunk port into VSAN 100.

  2. Change interface fc1fc1/1 into a trunk port and remove VSAN 100.

  3. Change interface fc2/4 into a trunk port.

  4. Change interface fc2/4 into VSAN 100.

  5. Change interface fc1fc1/2 into VSAN 100.

Answer: D

Question No: 99

Which three commands will show all the MAC addresses learned from remote sites in an OTV overlay? (Choose three.)

  1. show otv arp-nd-cache

  2. show otv route overlay

  3. show otv vlan

  4. show ip arp

  5. show mac address-table

  6. show otv site

Answer: A,B,E

Question No: 100

Refer to the exhibit.

Dumps4Cert 2018 PDF and VCE

Which conditions can trigger on a Cisco Nexus device running FabricPath?

  1. A switch connected to the Cisco Nexus device is running RSTP instead of STP.

  2. A BPDU with bridge priority set to 61140 is received by the switch edge port.

  3. The switch edge port in the STP domain is not configured as root.

  4. VLAN is configured incorrectly on port-channel 100.

Answer: C

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