how many questions of 642-980 dumps?

Q1. In order to fulfill the requirement to prevent the creation of end-to-end loops across a multihomed OTV network that connects two different data centers, what is the solution to this problem? 

A. prioritize the transmission of STP BPDUs across the overlay 

B. design the DCI connectivity as a hub and spoke 

C. define a conservative TTL for all packets traversing the OTV network 

D. enable AED on a per-VLAN basis between each OTV edge device with the same site ID 

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Q2. Refer to the exhibit. 

What command should you execute next in resolving a lock failure? 

A. ntp execute 

B. ntp commit 

C. ntp lock 

D. ntp help 

E. ntp detail 

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Q3. 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. Open DCNM and modify the "copp-system-p-policy" policy object. 

C. Re-run the setup utility and apply a new CoPP profile. 

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

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Q4. FCoE traffic from C200-1 on VSAN 13 is not being switched through the network. Which statement explains the cause of the problem? 

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

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

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

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

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Q5. A customer reports that a 10-Gb interface between a Cisco Nexus 7009 Switch and a Cisco Nexus 5548UP Switch is not passing traffic. The Nexus 7009 interface indicates up/up. The Nexus 5548UP interface indicates up/down. Which feature should you enable to help isolate the root cause? 

A. CDP 

B. GOLD 

C. UDLD 

D. DAI 

E. LACP 

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Q6. Refer to the exhibit. 

The server port connected to the NPV edge switch does not come online. Which action should fix the problem? 

A. Move the NP ports on the NPV edge and the F ports on the NPIV into the same VSAN 

99. 

B. Move the NP ports on the NPV edge and the F ports on the NPIV in the default VSAN 1. 

C. Move all the ports into VLAN 1. 

D. Move all the ports into VSAN 99. 

E. Move all the ports into VLAN 99. 

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Q7. Your customer is an ISP providing service to thousands of end customers. Its main concerns are focused on using up the total number of 4096 VLANs per VDC, wasting an unused block of IP addresses, and IP address management. Which technique will address these concerns? 

A. create a separate VDC to scale VLAN limitation and upgrade to Cisco Nexus 7018 Switch 

B. segment VLANs using secondary IP addresses, which will reduce the management domain 

C. create mapping between the VLAN and VSAN to run FCoE to consolidate VLAN and IP addresses 

D. use PVLANs, which will solve the scalability problem and provide IP address management 

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Q8. Refer to the output. 

feature otv 

otv site-vlan 2 

otv site-identifier 256 

!

interface ethernet 2/0 

ip address 192.0.2.1/24 

ip igmp version 3 

! 

interface ethernet 2/1 

ip address 192.0.2.2/24 

ip igmp version 3 

! 

interface Overlay1 

otv control-group 239.1.1.1 

otv join-interface ethernet 2/0 

otv extend-vlan 3-100 

! 

interface Overlay2 

otv control-group 239.1.1.1 

otv join-interface ethernet 2/1 

otv extend-vlan 101-115 

Which command best represents where the control plane configurations are applied? 

A. switch(config-if-overlay)# otv isis hello-interval 30 

B. switch(config-if)# otv isis hello-interval 30 

C. switch(config-vlan)# otv isis hello-interval 30 

D. switch(config)# otv isis hello-interval 30 

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Q9. Which statement would explain why the overlay interface on an OTV edge device is not in the up state? 

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

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

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

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

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Q10. Refer to the exhibit. 

A customer is having difficulty getting NPV working. What is the cause of the problem? 

A. The core NPV device is not enabled. 

B. The core NPV device is not a switch. 

C. The core NPV device is not configured on both ends. 

D. The core NPV device is not configured on the upstream port. 

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