642-980試験無料問題集（148題）「Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) 認定」

出題：1

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?

A. N7018# show copp status

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

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

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

E. N7018# show copp statistics

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

正解：F 解答を投票する

出題：2

FHRP isolation between data center networks that are connected over an OTV network is a two-step process; the first prevents FHRP peering by filtering FHRP control packets across the overlay via a VLAN ACL. What is the second step?

A. Disable the auto-population of the OTV MAC address table.

B. Remove the FHRP VLAN from the OTV extend-vlan list.

C. Filter the FHRP MAC addresses that are being advertised by IS-IS.

D. Apply a VLAN to a route map that is applied to the OTV routing process.

正解：C 解答を投票する

出題：3

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)# otv isis hello-interval 30

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

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

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

正解：C 解答を投票する

出題：4

Which two commands can an administrator use to easily determine the memory utilization on the Cisco Nexus 7000.

A. show system resources

B. show hardware fabric-utilization

C. show processes cpu history

D. show processes memory

正解：A,D 解答を投票する

出題：5

What are three situations that may cause an ISSU failure? (Choose three.)

A. A module is removed while the upgrade is in progress.

B. The specified system and kickstart images are not compatible.

C. The secondary supervisor is not installed.

D. The management interface is not in the correct VR

E. A proper ISSU license is not in place.

F. A line card is in a failure state.

G. The device has a power disruption while the upgrade is in progress.

H. The redundancy force-switchover command was used during the ISSU.

正解：B,F,G 解答を投票する

出題：6

Refer to the exhibit.

When suspending or deleting VSANs, which three statements are true? (Choose three.)

A. You must wait 60 seconds after you enter the vsan suspend command before you enter another command.

B. You can delete multiple VSANs as long as they are in the same zone.

C. You must wait 120 seconds after you enter the vsan suspend command before you enter another command.

D. You can delete only one VSAN at a time.

E. You can delete multiple VSANs as long as they are in the same domain.

F. You can unsuspend only one VSAN at a time.

正解：A,D,F 解答を投票する

出題：7

Which option describes why the merge status for any application shows "In Progress" for a prolonged period of time when a new switch is added to the fabric?

A. The application needs to be started on both switches.

B. The new switch must be upgraded to match the same version of code as the original switch.

C. The merge status cannot occur until a copy running-config startup-config is done.

D. The ports between the switches are not trunking all VSANs.

E. There are outstanding changes that must be committed.

正解：E 解答を投票する

出題：8

Cisco UCS users residing behind N5K2 are complaining about poor performance with a single LAN application in the data center. Which statement best explains what is wrong with N5K2?

A. The trunk between the Nexus 5000 switches is filtering all VLANs.

B. Port channel members do not have equal bandwidths.

C. E2/1 on N7010-C2 is not configured as a trunk for application traffic from N5K2.

D. Traffic balancing is based on the destination IP address.

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：9

While the Nexus 7010 switches are configured with vPC, the Nexus 5000 switch connections to each Nexus 7010 are configured as regular port-channels. Which statement best describes the problem affecting the port channel on N5K1?

A. The remote ends of the port-channel on N5K1 cannot use the same interface.

B. N5K1 must also be configured with vPC.

C. load-balancing is not configured correctly on N5K1.

D. LACP is not configured to initiate negotiations.

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：10

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. design the DCI connectivity as a hub and spoke

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

C. prioritize the transmission of STP BPDUs across the overlay

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

正解：D 解答を投票する

642-980試験無料問題集「Cisco Troubleshooting Cisco Data Center Unified Fabric (DCUFT) 認定」