[Nov 18, 2024] Fully Updated Dumps PDF - Latest 300-630 Exam Questions and Answers
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NEW QUESTION # 17
Refer to the exhibit.
A customer implements Cisco ACI Multi-Site with default MTU settings between two sites. Which configuration should be applied on the interface Eth1/10 on the ISN-1 device?
- A. Option B
- B. Option A
- C. Option C
- D. Option D
Answer: B
NEW QUESTION # 18
What is a use of the Overlay Multicast TEP in Cisco ACI Multi-Site communication?
- A. to act as the source IP for BUM traffic
- B. to send and receive unicast VXLAN data plane traffic
- C. to perform headend replication
- D. to establish MP-BGP adjacencies with remote spines
Answer: A
Explanation:
The Overlay Multicast TEP in Cisco ACI Multi-Site communication serves as the source IP for BUM traffic, which includes Broadcast, Unknown unicast, and Multicast traffic. This is crucial for efficient replication of BUM traffic across different sites.
NEW QUESTION # 19
An engineer must allow routes learned from one L3Out to be advertised out another L3Out. The engineer does not have an explicit list of all the routes that must be advertised out, however, they know that they are all part of the 10.16.0.0/16 CIDR block. Which attributes must be selected under Ext-EPG to allow the necessary routes to be advertised out?
- A. Enable Export Route Control Subnet and enable Aggregate Export
- B. Enable Export Route Control Subnet and enable Shared Route Control Subnet
- C. Enable Export Route Control Subnet and disable Aggregate Shared Routes
- D. Disable Shared Route Control Subnet and enable Aggregate Shared Routes
Answer: A
Explanation:
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1- x/ACI_Best_Practices/b_ACI_Best_Practices/b_ACI_Best_Practices_chapter_01001.html
NEW QUESTION # 20
Refer to the exhibit.
Which configuration must be implemented to allow intra-VRF transit routing between the two external routers?
- A. Deploy both areas under the same L3Out policy
- B. Change one of the areas to area 0
- C. Modify L3Out 1 to use the same OSPF area as L3Out 2
- D. Configure OSPF virtual links
Answer: D
Explanation:
For intra-VRF transit routing between two external routers in different OSPF areas, OSPF virtual links are required. They connect non-contiguous areas to the backbone area, ensuring all areas can communicate even if not directly connected.
References := Implementing Cisco Application Centric Infrastructure Official Cert Guide
NEW QUESTION # 21
An engineer Is configuring a Cisco ACI fabric and requires a shared L30ut network connectivity to external networks. The connectivity must be shared between different tenants. Which tenant type must be created to meet this requirement?
- A. management tenant
- B. common tenant
- C. user tenant
- D. infra tenant
Answer: B
NEW QUESTION # 22
Which firewall connection allows for the integration of service nodes in transparent mode with a Cisco ACI Multi-Pod setup?
- A. active-standby mode across pods
- B. active-active mode per pods for communication between internal endpoints
- C. active-standby mode per pods for communication between endpoints and external networks
- D. active-active mode across pods
Answer: A
Explanation:
https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric- infrastructure/white-paper-c11-739571.html (table 1)
NEW QUESTION # 23
Which action reduces the impact on workload when migrating from the existing Cisco NX-OS VXLAN network infrastructure to the Cisco ACI fabric?
- A. Set the default gateway in the Cisco ACI and VXLAN fabrics
- B. Use ACI spines for the Cisco ACI and VXLAN fabrics
- C. Configure vPC between the standalone Nexus and the Cisco ACI leaf
- D. Disable bridge domain unicast routing while a default gateway is in VXLAN infrastructure
Answer: D
Explanation:
Migrating from Cisco NX-OS VXLAN to Cisco ACI fabric involves several considerations to minimize impact on workloads. Disabling bridge domain unicast routing while the default gateway remains in the VXLAN infrastructure ensures that the migration does not disrupt the existing traffic flow. This approach allows for a smoother transition by maintaining the current routing paths until the migration is complete123.
References := Implementing Cisco Application Centric Infrastructure Official Cert Guide
NEW QUESTION # 24
In a Cisco ACI Multi-Site fabric, the Inter-Site BUM Traffic Allow option is enabled in a specific stretched bridge domain. What is used to forward BUM traffic to all endpoints in the same broadcast domain?
- A. ingress replication on the spines in the source site
- B. egress replication on the source leaf switches
- C. egress replication on the destination leaf switches
- D. ingress replication on the spines in the destination site
Answer: D
NEW QUESTION # 25
Drag and Drop Question
Refer to the exhibit. Drag and drop the subnets and flags from the left into the External Network Instance Profile policies on the right to create a setup that advertises only 10.10.0.0/24 and
10.10.1.0/24 prefixes in VRF1 and establishes connectivity between VRFs. Not all options are used.
Answer:
Explanation:
NEW QUESTION # 26
An engineer must allow routes learned from one L3Out to be advertised out another L3Out. The engineer does not have an explicit list of all the routes that must be advertised out, however, they know that they are all part of the 10.16.0.0/16 CIDR block. Which attributes must be selected under Ext-EPG to allow the necessary routes to be advertised out?
- A. Enable Export Route Control Subnet and enable Aggregate Export
- B. Enable Export Route Control Subnet and enable Shared Route Control Subnet
- C. Enable Export Route Control Subnet and disable Aggregate Shared Routes
- D. Disable Shared Route Control Subnet and enable Aggregate Shared Routes
Answer: A
NEW QUESTION # 27
What are two PBR characteristics of the Cisco ACI Active-Active Across Pods deployment mode in Cisco ACI Multi-Pod design? (Choose two.)
- A. This mode causes the traffic to flow asymmetrically
- B. Traffic is dynamically redirected to the firewall that owns the connection.
- C. Deployment occurs in go-to mode only.
- D. The connection state is unsynchronized.
- E. Deployment occurs in transparent mode.
Answer: A,E
NEW QUESTION # 28
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. Disable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.
- B. Set the L2 Unknown Unicast option to Flood for Layer 2 switched traffic.
- C. Enable the ARP Flooding option under the bridge domain for Layer 3 routed traffic.
- D. Set the L2 Unknown Unicast option to Hardware-Proxy for Layer 2 switched traffic.
Answer: D
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 encapsulation VLAN-4 between the routers and spine nodes.
- C. Configure OSPF on subinterfaces on routers that are directly connected with spine nodes.
- D. Configure OSPF on all ISN routers.
- E. Configure BIDIR-PIM on all ISN routers.
Answer: A,D
NEW QUESTION # 30
Refer to the exhibit.
Which configuration must be implemented to allow intra-VRF transit routing between the two external routers?
- A. Configure OSPF virtual links
- B. Change one of the areas to area 0
- C. Modify L3Out 1 to use the same OSPF area as L3Out 2
- D. Deploy both areas under the same L3Out policy
Answer: D
NEW QUESTION # 31
Refer to the exhibit. Server A is connected to the Cisco ACI fabric using two teamed interfaces.
One interface in a team is configured as active and the other remains in standby mode. When a failover occurs and the standby interface becomes active, it uses its built-in MAC address to send traffic. Which bridge domain configuration must be applied to resolve the issue?
- A. Set L2 Unknown Unicast to Flood.
- B. Enable ARP flooding.
- C. Configure Hardware proxy.
- D. Activate Limit IP Learning to Subnet.
Answer: A
NEW QUESTION # 32
A packet is routed between two endpoints on different Cisco ACI leaf switches. Which VXLAN VNID is applied to the packet?
- A. VRF
- B. FD
- C. EPG
- D. BD
Answer: A
Explanation:
When a packet is routed between two endpoints on different Cisco ACI leaf switches, the VXLAN VNID applied to the packet is the VRF (Virtual Routing and Forwarding) VNID. This VNID enables forwarding of the packet through tenant virtual routing and forwarding domains within the fabric34.
References := Cisco APIC Layer 3 Networking Configuration Guide, Release 3.x and later
NEW QUESTION # 33
Refer to the exhibit. A customer experiences resource overconsumption on one of its border leaf switches. Which action should be taken to reduce the consumption on this switch?
- A. Disable IP Data Plane Learning
- B. Migrate L3Outs to another switch
- C. Disable VRF Policy Control Enforcement
- D. Disable Remote EP Learning
Answer: D
NEW QUESTION # 34
Which device replicates Broadcast, Unicast, and Multicast (BUM) frames to all remote sites in a Cisco ACI Multi-Site with multiple stretched bridge domains?
- A. local spine that is elected the designated forwarder for each bridge domain
- B. receiving leaf that learns the location for the sourced BUM traffic
- C. remote spine node that translates the VNID to the locally significant value
- D. source leaf that floods the traffic to the specific multicast group or GIPo
Answer: A
NEW QUESTION # 35
Refer to the exhibit.
A company merges three of its departments: CORP. HR. and SERVICES. Currently, the connectivity between departments is achieved by using VRF route leaking. The requirement is to redesign the Cisco ACI networking architecture to communicate between EPGs and BDs from any tenant without configuring contracts or VRF route leaking. Which configuration meets these criteria?
- A. Implement an enforced VRF in the common tenant and map all required BDs to it.
- B. Implement an unenforced VRF in the common tenant and map all required BDs to it.
- C. Configure an unenforced VRF in the user tenant and map all required EPGs to it.
- D. Configure an enforced VRF in the user tenant and map all required EPGs to it.
Answer: B
Explanation:
In Cisco ACI, Virtual Routing and Forwarding (VRF) instances are used to create separate routing tables for network traffic management. An unenforced VRF does not apply policies or contracts for communication between endpoints, allowing free communication without the need for explicit permissions. By implementing an unenforced VRF in the common tenant and mapping all required Bridge Domains (BDs) to it, each department's BDs can communicate with one another without configuring contracts or VRF route leaking, thus meeting the company's requirement for redesigning their networking architecture. References:
Implementing Cisco Application Centric Infrastructure Official Cert Guide
NEW QUESTION # 36
What does the VXLAN source port add to the overlay packet forwarding when it uses the hash of Layer 2, Layer 3, and Layer 4 headers of the inner packet?
- A. TCP optimization
- B. ECMP
- C. disabled fragmentation
- D. jumbo frames
Answer: B
Explanation:
Section: ACI Packet Forwarding
Explanation/Reference: https://www.cisco.com/c/en/us/support/docs/lan-switching/vlan/212682-virtual-extensible-lan-and- ethernet-virt.html
NEW QUESTION # 37
A customer is deploying a new application across two ACI pods that is sensitive to latency and jitter. The application sets the DSCP values of packets to AF31 and CS6, respectively. Which configuration changes must be made on the APIC to support the new application and prevent packets from being delayed or dropped between pods?
- A. align the custom QoS policy on the EPG site in the customer tenant
- B. align the ACI QoS levels and IPN QoS policies
- C. disable DSCP translation policy
- D. disable DSCP mapping on the IPN devices
Answer: B
Explanation:
https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKACI-2210.pdf
NEW QUESTION # 38
How is the traffic directed to the firewall pair in a two-site Multi-Pod deployment with an active/standby firewall pair stretched across pods?
- A. to the pod designated as the primary pod
- B. to a collector in the Inter-Pod Network
- C. to the pod with the active service node
- D. to the local service node for processing
Answer: C
Explanation:
In a two-site Multi-Pod deployment with an active/standby firewall pair stretched across pods, traffic is directed to the pod with the active service node. This approach ensures that all traffic goes through the firewall that is currently handling traffic, maintaining security policies consistently across both sites while also providing high availability by automatically failing over to the standby firewall in case of any issues with the active one. References := ( Implementing Cisco Application Centric Infrastructure Official Cert Guide )
NEW QUESTION # 39
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