無料ダウンロードCisco 300-630リアル試験問題ゲットせよ [Q70-Q89]

無料ダウンロードCisco 300-630リアル試験問題ゲットせよ

最新のCisco 300-630リアル試験問題集PDF

質問 # 70

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?

A. Enable Export Route Control Subnet
B. Enable Shared Security Import Subnet
C. Enable Aggregate Export Subnet
D. Enable Shared Route Control Subnet

正解：C

解説：
Section: Advanced ACI Policies and Integrations

質問 # 71
What is the purpose of enabling ARP flooding when VMs are migrated from a pre-existing network to Cisco ACI and their gateways remain configured in the legacy setup?

A. to avoid endpoint flapping between the legacy network and the ACI fabric
B. to prevent VMs from communicating with physical servers within the ACI fabric
C. to allow communication between VMs and silent hosts
D. to allow VMs to communicate with devices outside of their subnet

正解：C

解説：
Enabling ARP flooding is necessary when VMs are migrated from a pre-existing network to Cisco ACI and their gateways remain in the legacy setup. This allows the ACI fabric to learn about silent hosts that do not initiate communication, ensuring that the migrated VMs can communicate with all hosts in the network, including those that are silent.

質問 # 72

Refer to the exhibit. Which three actions should be taken to implement the vPC in the Cisco ACI fabric?
(Choose three.)

A. Select individual switch profiles
B. Select common interface profiles
C. Select common switch profiles
D. Select a common vPC interface policy group
E. Select individual interface profiles

正解：C、D、E

解説：
Section: Advanced ACI Policies and Integrations

質問 # 73
Refer to the exhibit.

How are the STP BPDUs forwarded over Cisco ACI fabric?

A. STP BPDUs that are generated by Switch2 are received by Switch1 and Switch3.
B. Cisco ACI acts as the STP root for all three external switches.
C. STP BPDUs that are generated by Switch1 are received only by Switch3.
D. Cisco ACI fabric drops all STP BPDUs that are generated by the external switches.

正解：A

質問 # 74
A network engineer configured an active-active firewall cluster that is stretched across separate pods in the Cisco ACI fabric. Which two implementation setups for anycast services are available? (Choose two.)

A. Modify the Cisco ACI contract scope
B. Deselect No Default SVI Gateway under EPG Subnet
C. Configure the firewalls behind an EPG subnet
D. Modify the MAC address on the second firewall
E. Deploy a Layer 4 to Layer 7 service graph with PBR

正解：C、D

解説：
Section: Multipod

質問 # 75
What are two characteristics of Cisco ACI interaction with MSTP? (Choose two.)

A. Mis-cabling protocol is used to snoop the MSTP TCN packets.
B. A dedicated EPG must be created for the native VLAN ID with static bindings toward the MSTP-enabled switches.
C. A Cisco ACI leaf flushes all local endpoints in the received EPG when an MSTP TCN frame is received.
D. A static path binding is required for native VLAN to carry the MST BPDUs in existing EPGs.
E. The PVST simulation must be configured on external network switches to support MSTP.

正解：A、B

解説：
Section: Traditional network with ACI

質問 # 76
Which protocol must be applied between the inter-pod network and spines within each pod to allow broadcast traffic replication between Cisco ACI pods?

A. MSDP Peering
B. Bidirectional PIM
C. Multicast BGP
D. IGMP Registration

正解：B

解説：
Bidirectional Protocol Independent Multicast (Bidirectional PIM) is used between the inter-pod network (IPN) and spines within each pod in a Cisco ACI environment to allow broadcast traffic replication between pods.
This protocol is designed to efficiently route multicast traffic in scenarios where the same data is being sent to multiple receivers, which aligns with the need for broadcast traffic replication in an interconnected multi-pod ACI architecture. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )

質問 # 77
Which action should be taken in Cisco ACI to reassign a unique globally scoped pcTag to an EPG that provides a global contract?

A. Configure subnets that are treated as virtual IP
B. Configure subnets that are private to VRF
C. Configure subnets that advertise externally
D. Configure subnets that are shared between VRFs

正解：D

質問 # 78
An engineer must implement a full mesh Cisco ACI Multi-Site architecture. Which action must be taken on each spine to accomplish this goal?

A. Configure Multi-Pod Data-Plane TEP
B. Configure Overlay Unicast TEP
C. Configure Overlay Multicast TEP
D. Configure BGP-EVPN Router-ID

正解：D

解説：
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric- infrastructure/white-paper-c11-739609.html

質問 # 79
An engineer must limit local and remote endpoint learning to the bridge domain subnet. Which action should be taken inside the Cisco APIC?

A. Disable Remote EP Learn
B. Enable Limit IP Learning to Subnet
C. Enable Enforce Subnet Check
D. Disable Endpoint Dataplane Learning

正解：B

解説：
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric- infrastructure/white-paper-c11-739989.html

質問 # 80
Refer to the exhibit.

An engineer wants to avoid connectivity problems for the endpoint EP1 when it reaches an external L3Out network through the gateway 10.2.2.254/24. Which two configurations must be implemented in BD-BD2?
(Choose two.)

A. Enable unicast routing
B. Disable ARP flooding
C. Enable ARP flooding
D. Enable IP data plane learning for the VRF
E. Disable unicast routing

正解：B、E

質問 # 81
An engineer is deploying a Cisco ACI fabric and discovers that the traffic to certain endpoints is dropped. The originating bridge domain is configured with hardware proxy. Which action prevents this problem?

A. Set the L2 Unknown Unicast option to Hardware-Proxy for Layer 2 switched traffic.
B. Disable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.
C. Enable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.
D. Set the L2 Unknown Unicast option to Flood for Layer 2 switched traffic.

正解：D

解説：
When traffic to certain endpoints is dropped in a Cisco ACI fabric configured with hardware proxy, setting the L2 Unknown Unicast option to Flood for Layer 2 switched traffic can prevent this problem. This mode allows unknown unicast traffic to be flooded within the bridge domain, rather than being sent to the spine proxy and potentially discarded if the destination is unknown5.
References := Solved: Unknown Unicast in ACI Fabric - Cisco Community

質問 # 82
Refer to the exhibit.

Which two configurations enable inter-VRF communication? (Choose two.)

A. Export the contract and import as a contract interface
B. Change the contract scope to Tenant
C. Set the subnet scope to Shared Between VRFs
D. Change the subject scope to VRF
E. Enable Advertise Externally under the subnet scope

正解：A、E

解説：
To enable inter-VRF communication, one must configure settings that allow subnets to be advertised externally and establish contract interfaces between VRFs. Option B, "Enable Advertise Externally under the subnet scope," allows subnets to be advertised outside their home VRFs. Option E, "Export the contract and import as a contract interface," enables communication between different VRFs by creating an exportedcontract from one VRF that can be imported into another as an interface contract. References := Implementing Cisco Application Centric Infrastructure Official Cert Guide

質問 # 83
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.)

A. Configure OSPF on all ISN routers.
B. Configure encapsulation VLAN-4 between the routers and spine nodes.
C. Configure BIDIR-PIM on all ISN routers.
D. Configure OSPF on subinterfaces on routers that are directly connected with spine nodes
E. Configure ISN site extension on Cisco routers in the network

正解：B、D

質問 # 84

Refer to the exhibit. Which two configuration steps are required in ISN for Cisco ACI Multi-Site setup? (Choose two.)

A. Configure BIDIR-PIM throughout the ISN
B. Increase ISN MTU to support the maximum MTU that is sent by endpoints
C. Configure OSPF between spines and ISN routers
D. Connect Spine2 to ISN routers.
E. Enable IGMPv3 on ISN routers

正解：C、E

解説：
Section: Multisite

質問 # 85
Which feature should be disabled on a bridge domain when a default gateway for endpoints is on an external device instead of a Cisco ACI bridge domain SVI?

A. unicast routing
B. unknown unicast flooding
C. ARP flooding
D. proxy ARP

正解：A

質問 # 86
An engineer deploys a Cisco ACI Multi-Site Orchestrator for the first time. Drag and drop the actions from the left into the steps on the right to add a site and deploy new Cisco ACI objects to the fabric. Not all actions are used.

正解：

解説：

Explanation:
Table Description automatically generated

質問 # 87
A cloud provider must make a pair of firewalls available to all tenants. Each tenant defines its own service graph. Where should the Layer 4 to Layer 7 service be configured to accomplish this goal?

A. user tenant
B. infrastructure tenant
C. management tenant
D. common tenant

正解：A

解説：
Section: Advanced ACI Policies and Integrations
Explanation

質問 # 88
Refer to the exhibit. New e-commerce software is deployed on Cisco ACI fabric. The environment must meet these requirements:
- The overall number of contracts must be reduced by reusing the
existing contracts within a VRF when possible.
- The e-commerce software must communicate only with software EPGs that are part of the same ANP.
- The e-commerce software must be prevented from communicating with
applications in different ANPs.
Which scope must be selected to meet these requirements?