300-620 practice questions 161–170

1. Question 161 · 340 in bank

   

   Refer to the exhibit. VM1 and VM2 are in Cisco ACI POD1 and communication takes place. Which event is triggered when VM2 is live migrated from POD1 to POD2?

   • ALeaf 102 installs a bounce entry for VM2 pointing to the PTEP address of leaf 201.
   • BLeaf 201 creates a tunnel with leaf 102 because of the bounced traffic that is destined to VM2.
   • CSpines from POD2 send an MP-BGP EVPN update to the leaves in POD1 about the new location of VM2.
   • DAn MP-BGP EVPN update is received by spines in POD1 announcing the reachability of VM2 via the proxy VTEP address of the spines in POD2.

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   Answer: D

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2. Question 162 · 340 in bank

   An engineer configures a Cisco ACI Multi-Pod for disaster recovery. Which action should be taken for the new nodes to be discoverable by the existing Cisco APICs?

   • AConfigure IGMPv3 on the interfaces of IPN routers that face the Cisco ACI spine.
   • BEnable subinterfaces with dot1q tagging on all links between the IPN routers.
   • CEnable DHCP relay on all links that are connected to Cisco ACI spines on IPN devices.
   • DConfigure BGP as the underlay protocol in IPN.

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   Answer: C

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3. Question 163 · 340 in bank

   

   Refer to the exhibit. The 0.0.0.0/0 is configured as a default static route on L3Out-1. Which action should be taken for the 0.0.0.0/0 prefix to advertise out on L3Out-2 OSPF?

   • AEnable Export Route Control Subnet.
   • BEnable Shared Security Import Subnet.
   • CEnable Shared Route Control Subnet.
   • DEnable Aggregate Export Subnet.

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   Answer: A

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4. Question 164 · 340 in bank

   A packet is routed between two endpoints on different Cisco ACI leaf switches. Which VXLAN VNID is applied to the packet?

   • AFD
   • BEPG
   • CVRF
   • DBD

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   Answer: C

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5. Question 165 · 340 in bank

   Select 2

   

   Refer to the exhibit. A company decided to decrease its routing footprint and remove RT-2 and RT-3 devices from its data center. Because of that, the exit point must be created from all the tenants by using the common tenant. Which two configuration tasks must be completed to meet these requirements? (Choose two.)

   • AMove subnets from all the bridge domains to the EPG level and mark them with flag Shared between VRFs.
   • BUpdate the L3Out ExtEPG subnet in the common tenant with flag Shared Route Control Subnet and Aggregate Shared Routes.
   • CMark all subnets with flag Shared between VRFs and attach contract Ctr-3 as a provider to all the EPGs.
   • DChange contract Ctr-3 scope to Global, consume it by all EPGs, and flag all subnets with flag Shared between VRFs.
   • EExport contract Ctr-2 into the tenant TN-1 and attach it as a consumer to all the EPGs in the tenant TN-1.

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   Answer: BD

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6. Question 166 · 340 in bank

   Select 2

   A company must connect three Cisco ACI data centers by using Cisco ACI Multi-Site. An engineer must configure the Inter-Site Network (ISN) between the existing sites. Which two configuration steps must be taken to implement the ISN? (Choose two.)

   • AConfigure OSPF on subinterfaces on routers that are directly connected with spine nodes.
   • BConfigure ISN site extension on Cisco routers in the network.
   • CConfigure OSPF on all ISN routers.
   • DConfigure BIDIR-PIM on all ISN routers.
   • EConfigure encapsulation VLAN-4 between the routers and spine nodes.

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   Answer: AE

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7. Question 167 · 340 in bank

   

   Refer to the exhibit. How are the STP BPDUs forwarded over Cisco ACI fabric?

   • ACisco ACI acts as the STP root for all three external switches.
   • BSTP BPDUs that are generated by Switch2 are received by Switch1 and Switch3.
   • CSTP BPDUs that are generated by Switch1 are received only by Switch3.
   • DCisco ACI fabric drops all STP BPDUs that are generated by the external switches.

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   Answer: C

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8. Question 168 · 340 in bank

   

   Refer to the exhibit. An administrator configures inter-VRF route leaking between Production:vrf-prod and Non-Production:vrf-nonprod. However, the route in the Non-Production:vrf-nonprod VRF to the production tenant is missing. Which action resolves the VRF route leaking issue?

   • AChange the contract scope to Global.
   • BEnable the Shared between VRFs option for the BD subnet in the production VRF.
   • CEnable the Shared between VRFs option for the EPG subnet in the non-production VRF.
   • DExport the contract from provider to consumer tenant.

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   Answer: B

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9. Question 169 · 340 in bank

   How is broadcast forwarded in Cisco ACI Multi-Pod after ARP flooding is enabled?

   • AIngress replication is used on the spines to forward broadcast frames in the IPN infrastructure.
   • BWithin a pod, the ingress leaf switch floods the broadcast frame on all fabric ports.
   • CBroadcast frames are forwarded inside the pod and across the IPN using the multicast address that is associated to the bridge domain.
   • DFor the specific bridge domain, all spines forward the broadcast frames to IPN routers.

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   Answer: C

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10. Question 170 · 340 in bank

    Select 2

    What are two PBR characteristics of the Cisco ACI Active-Active Across Pods deployment mode in Cisco ACI Multi-Pod design? (Choose two.)

    • ATraffic is dynamically redirected to the firewall that owns the connection.
    • BDeployment occurs in transparent mode.
    • CThe connection state is unsynchronized.
    • DDeployment occurs in go-to mode only.
    • EThis mode causes the traffic to flow asymmetrically.

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    Answer: AD

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300-620 practice, question 161. 340 questions available.