2016/12 New Cisco 642-980: Troubleshooting Cisco Data Center Unified Fabric (DCUFT) Exam Questions Updated Today!
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QUESTION 11
The installation of a new OTV network connecting two data centers via a service provider LAN has failed verification steps. Which statement explains why certain types of data are not being successfully transferred across the OTV network?
A. The number of extended VLANs across all configured overlays may be greater than 256.
B. The number of MAC addresses on either edge device may exceed 4000.
C. The additional 42-byte OTV overhead, along with the DF bit being set, may cause the service provider
to drop packets based on their 1500 MTU settings.
D. Having more than two edge devices per site is not supported.
Answer: C
QUESTION 12
Which command is critical in order for OTV edge devices to maintain an overlay adjacency with their local peers in a multihomed site via the join interfaces across the Layer 3 network domain?
A. otv site-identifier
B. otv extend-vlan
C. otv site-vlan
D. otv use-adjacency-server unicast-only
Answer: A
QUESTION 13
Which two commands will show all the OTV edge devices and their MAC addresses in the local site? (Choose two.)
A. show otv overlay
B. show otv site
C. show otv vlan
D. show otv adjacency
E. show mac address-table
Answer: BD
QUESTION 14
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 otv vlan
D. show otv adjacency
E. show mac address-table
Answer: AD
QUESTION 15
Which command would you use to find the AED of an extended VLAN in a dual-homed site of an OTV network?
A. show otv aed on the AED
B. show otv site on any edge devices in the site
C. show otv vlan on the AED
D. show otv aed on any edge devices in the site
E. show otv vlan on any edge devices in the site
Answer: C
QUESTION 16
If no traffic was ever sent across the overlay, what will the show mac address-table command on the OTV VDC indicate?
A. invalid command
B. the MAC address of the local OTV join interface
C. the system IDs of all the local OTV edge devices
D. the system IDs of all the local and remote edge devices in the overlay
E. all the MAC addresses learned on the extended VLAN
Answer: B
QUESTION 17
Which three commands will show all the MAC addresses learned from remote sites in an OTV overlay? (Choose three.)
A. show otv arp-nd-cache
B. show otv route overlay
C. show otv vlan
D. show ip arp
E. show mac address-table
F. show otv site
Answer: ABE
QUESTION 18
In a Cisco Unified Network design, the core layer could have which two services available? (Choose two.)
A. NPIV feature
B. NPV feature
C. fabric login services
D. FCoE FEX
E. config-sync
Answer: AC
QUESTION 19
Which two tools can be used to monitor the name server logins of the converged adapters? (Choose two.)
A. Cisco DCNM SAN
B. Cisco DCNM LAN
C. Cisco Nexus EEM
D. monitor session to Wireshark
E. Threshold Manager
Answer: AD
QUESTION 20
Which of the following is the most important consideration of an FCoE design?
A. EvPC
B. oversubscription
C. active/active Converged Network Adapter ports
D. fabric path
E. ENPV
Answer: B
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