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Latest Cisco 300-630 Certification Practice Test Questions
NEW QUESTION # 25
Refer to the exhibit.
An engineer must allow IP mobility between Site1 and Site2 in a Cisco Nexus Dashboard Orchestrator. The design must meet these requirements:
* A disaster recovery (DR) solution must exist between the sites that do not require vMotion support
* The application must be started at a DR site without having to re-IP the application servers
* The solution must avoid any broadcast storms between the sites.
Which two actions meet these criteria? (Choose two.)
- A. Define a unique bridge domain subnet per site.
- B. Disable inter-site BUM Traffic.
- C. Apply the L2 Stretch feature.
- D. Deploy a local EPG for Site1 and Site2.
- E. Configure STP between Cisco ACI fabrics.
Answer: B,C
Explanation:
The L2 Stretch feature allows for the extension of a Layer 2 network across multiple sites without changing the IP addressing scheme, which satisfies the requirement for starting an application at a DR site without re-IPing servers. Disabling inter-site BUM (Broadcast, Unknown unicast, and Multicast) traffic prevents broadcast storms between sites while still allowing IP mobility, meeting both specified criteria. References := (Implementing Cisco Application Centric Infrastructure Official Cert Guide)
NEW QUESTION # 26
An engineer must implement an L30ut within a tenant to allow the reachability to services outside of the Cisco ACI fabric. The requirement is to allow communication from the EPGs in the same VRF to the external services and save TCAM resource utilization. Which contract insertion method must be used to meet these requirements?
- A. Provider: L30ut external EPGs Consumer: each service EPGs
- B. Provider: each service EPGs Consumer: L30ut external EPGs
- C. Provider: L30ut external EPGs Consumer: vzAny inside VRF
- D. Provider: each service EPGs Consumer: vzAny inside the VRF
Answer: D
NEW QUESTION # 27
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. Set the L2 Unknown Unicast option to Flood for Layer 2 switched traffic.
- C. Disable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.
- D. Enable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.
Answer: A
NEW QUESTION # 28
Refer to the exhibit.
Which configuration mode must be selected for the VMM vSwitch Port Channel policy to avoid MAC flapping on the Cisco UCS Fls and Cisco ACI leaf switches?
- A. MAC Pinning
- B. LACP Active
- C. LACP Passive
- D. Static Channel - Mode On
Answer: A
NEW QUESTION # 29
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 ISN site extension on Cisco routers in the network.
- B. Configure OSPF on subinterfaces on routers that are directly connected with spine nodes.
- C. Configure OSPF on all ISN routers.
- D. Configure encapsulation VLAN-4 between the routers and spine nodes.
- E. Configure BIDIR-PIM on all ISN routers.
Answer: A,C
NEW QUESTION # 30
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. proxy ARP
- D. ARP flooding
Answer: A
NEW QUESTION # 31
Refer to the exhibit.
An engineer must have communication between EPG1 in VRF1 and External EPG in VRF2. Which three actions should be taken for the defined subnets in the L3Out External EPG to accomplish this goal? (Choose three.)
- A. Enable Shared Security Import Subnet
- B. Enable Import Route Control Subnet
- C. Enable Shared Route Control Subnet
- D. Enable External Subnets for External EPG
- E. Enable Export Route Control Subnet
- F. Enable Aggregate Shared Routes
Answer: A,B,E
NEW QUESTION # 32
An organization deploys active-active data centers and active-standby firewalls in each data center. Which action should be taken in a Cisco ACI Multi-Pod to maintain traffic symmetry through the firewalls?
- A. Disable Resilient Hashing
- B. Enable Pod ID Aware Redirection
- C. Enable Endpoint Dataplane Learning
- D. Disable service node Health Tracking
Answer: D
NEW QUESTION # 33
What are two characteristics of network-centric design in Cisco ACI? (Choose two.)
- A. A bridge domain has one subnet and one EPG
- B. EPGs are different security zones
- C. Applications define the network requirements
- D. EPGs are used formicro segmentation
- E. There is open communication between EPGs
Answer: A,E
Explanation:
In a network-centric design within Cisco ACI, there is open communication between EPGs, and a bridge domain typically has one subnet and one EPG. This design is often used for initial migrations and is based on traditional networking concepts.
References := Network Centric to ACI Centric Migration - Cisco
NEW QUESTION # 34
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. Configure the firewalls behind an EPG subnet
- B. Modify the Cisco ACI contract scope
- C. Deploy a Layer 4 to Layer 7 service graph with PBR
- D. Modify the MAC address on the second firewall
- E. Deselect No Default SVI Gateway under EPG Subnet
Answer: A,C
Explanation:
Anycast services in a Cisco ACI fabric allow services like firewalls to be stretched across multiple pods, providing high availability and resiliency. The correct setups for implementing anycast services include configuring the firewalls behind an EPG subnet and deploying a Layer 4 to Layer 7 service graph with Policy-Based Routing (PBR) (E). Modifying the ACI contract scope (A) or the MAC address on the second firewall (B) are not related to anycast service implementation. Deselecting No Default SVI Gateway under EPG Subnet (D) is not a setup for anycast services1. References := (Cisco APIC Online Help - About Anycast Services2)
NEW QUESTION # 35
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. Enable IGMPv3 on ISN routers
- D. Configure OSPF between spines and ISN routers
- E. Connect Spine2 to ISN routers.
Answer: B,D
Explanation:
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric- infrastructure/white-paper-c11-739609.html
NEW QUESTION # 36
Refer to the exhibit.
Between Cisco UCS Fls and Cisco ACI leaf switches, CDP is disabled, the LLDP is enabled, and LACP is in Active mode. Which two discovery protocols and load-balancing mechanism combinations can be implemented for the DVS? (Choose two.)
- A. CDP enabled, LLDP disabled, and LACP Active
- B. CDP enabled, LLDP enabled, and LACP Active
- C. CDP enabled, LLDP disabled, and LACP Passive
- D. CDP enabled, LLDP disabled, and MAC Pinning
- E. CDP disabled, LLDP enabled, and LACP Passive
- F. CDP disabled, LLDP enabled, and MAC Pinning
Answer: C,F
NEW QUESTION # 37
Refer to the exhibit. An engineer must have communication between EPG1 in VRF1 and External EPG in VRF2. Which three actions should be taken for the defined subnets in the L3Out External EPG to accomplish this goal? (Choose three.)
- A. Enable Import Route Control Subnet
- B. Enable Shared Security Import Subnet
- C. Enable Export Route Control Subnet
- D. Enable External Subnets for External EPG
- E. Enable Aggregate Shared Routes
- F. Enable Shared Route Control Subnet
Answer: B,D,F
Explanation:
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric- infrastructure/guide-c07-743150.html
NEW QUESTION # 38
A customer plans to deploy a Cisco ACI Multi-Pod deployment. Which two features must be implemented on the IPN switches?
- A. * Enable BIDIR-PIM.
* Configure a minimum multicast range of/15. - B. * Configure PIM anycast RP.
* Configure a maximum multicast range of /15. - C. * Enable BIDIR-PIM.
* Configure a maximum multicast range of/23. - D. * Configure PIM anycast RP.
* Configure a minimum multicast range of 123.
Answer: D
Explanation:
Configuring Protocol Independent Multicast (PIM) anycast RP allows for efficient multicast traffic routing between pods by having multiple Rendezvous Points (RPs) share the same IP address. A maximum multicast range of /15 provides sufficient address space to support the scale of multicast traffic typically required in such deployments. References := (Implementing Cisco Application Centric Infrastructure Official Cert Guide)
NEW QUESTION # 39
What is a characteristic of a stretched bridge domain solution between Cisco ACI sites with Layer 2 flood enabled?
- A. BUM traffic between sites leverages ISN multicast replication.
- B. The solution reduces control plane overhead.
- C. Spine head-end replication is used to forward BUM traffic between sites.
- D. Contracts are local to the provided site.
Answer: C
Explanation:
In a stretched bridge domain solution between Cisco ACI sites with Layer 2 flood enabled, spine head-end replication is utilized to forward Broadcast, Unknown unicast, and Multicast (BUM) traffic between the sites.
This method leverages the spine switches at each site to replicate BUM traffic to other sites, ensuring that all endpoints within the stretched bridge domain can receive such traffic. This approach is chosen over ISN multicast replication because it simplifies the overall design and reduces bandwidth consumption on inter-site links by avoiding unnecessary duplication of BUM traffic. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )
NEW QUESTION # 40
Cisco ACI fabric is migrated from network-centric mode to application-centric mode.
What is possible in an application-centric design?
- A. Cisco ACI VMM integration with hypervisors
- B. remapping of VLAN pools
- C. creation of additional EPGs under one bridge domain
- D. migration of bare metal servers to virtual machines
Answer: C
NEW QUESTION # 41
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