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2021 Apr 642-980 exam answers
Q31. When a directly connected host pings a switch virtual interface on the Cisco Nexus 7000 Series Switch, there is intermittent ping loss. What is the cause?
A. CoPP is applying microflow policing to all traffic from the host that is destined to the CPU.
B. CoPP is applying microflow policing to all traffic to the host that is leaving the CPU.
C. CoPP is rate-limiting all ICMP traffic that is destined to the CPU.
D. CoPP is rate-limiting all ICMP traffic that is leaving the CPU.
Answer: C
Q32. Refer to the exhibit.
The customer informs you of a problem they are encountering. What is the cause of the problem?
A. The core upstream switch does not have NPIV enabled.
B. The downstream switch does not have NPIV enabled.
C. NPIV has been disabled on all switches.
D. NPIV has been configured but not enabled on the uplink port.
Answer: A
Q33. 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.
Answer: C
Q34. A customer is deploying FCoE in its networ and has found that the connected host does not support FIP. Which command will be useful in troubleshooting this issue?
A. show platform fcoe_mgr info interface vfc id
B. show platform fcoe_mgr info software interface vfc id
C. show platform software fcoe_mgr info interface vfc id
D. show platform software interface fcoe_mgr info vfc id
Answer: C
Q35. 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?
A. The ARP CoPP class committed information rate is exceeded, resulting in ARP loss in all VDCs.
B. The administrator has not correctly configured the ARP CoPP class in VDC 2.
C. The ARP traffic in VDC 1 is copied to the host ports in VDC 2, causing overutilization and output discards.
D. 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
Renewal 642-980 answers:
Q36. Which two commands can you issue on a Cisco Nexus 5548UP Switch to determine which interfaces are connected to fabric extenders? (Choose two.)
A. show fex-fabric interface
B. show fex
C. show fex fex-id
D. show fex interface
E. show fex detail
Answer: CE
Q37. Refer to the exhibit.
A zone merge failure occurs with the above error log. What is the problem?
A. Two switches have the same zone set name but different zone members.
B. Two switches have different zone names and different members.
C. Two switches have the same zone set name and the same members.
D. Two switches have different zone names.
Answer: A
Q38. Which tools can assist in the troubleshooting of FC-0 issues? (Choose three.)
A. FC analyzer
B. SPAN
C. Device Manager
D. show interface fc1/1 optical-power-budget
E. PAA
F. a portable protocol analyzer
Answer: ACF
Q39. Which three of these would cause two switch fabrics not to merge? (Choose three.)
A. Two or more switches do not have at least one assigned domain ID in common.
B. Two switches have different assigned VSANs on the connecting ports.
C. Two switches have different assigned VLANs on the connecting ports.
D. The static domain ID does not override the dynamic ID.
E. The election of the static domain is only determined by the WWNs of the two switches.
F. The physical connectivity between the two switches is not active.
Answer: ABF
Q40. The Cisco Nexus 2248 FEX has been added recently to the network via a vPC to the Nexus 5000 switches; however, connectivity is not yet operational. What is the problem with the configuration?
A. Both Nexus 5000 switches must associate to the same FEX number
B. Each Nexus 5000 should have its own FEX to support a straight-through topology.
C. The maximum number of links for pinning purposes should be increased to 2.
D. Ethernet1/18 must be configured without a port channel.
Answer: D