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Welcome to download the newest ValidVCE 300-420 PDF dumps: https://www.validvce.com/300-420-exam-collection.html ( 148 Q&As)
NEW QUESTION 58
A company is planning to open two new branches and allocate the 2a01:c30:16:7009::3800/118 IPv6 network for the region. Each branch should have the capacity to accommodate maximum of 200 hosts. Which two networks should the company use? (Choose two.)
- A. 2a01:0c30:0016:7009::3b00/121
- B. 2a01:0c30:0016:7009::3a00/120
- C. 2a01:0c30:0016:7009::3c00/120
- D. 2a01:0c30:0016:7009::3a80/121
- E. 2a01:0c30:0016:7009::3b00/120
Answer: B,E
NEW QUESTION 59
An engineer is tasked with designing a dual BGP peering solution with a service provider. The design must meet these conditions:
* The routers will not learn any prefix with a subnet mask greater than /24.
* The routers will determine the routes to include in the routing table based on the length of the mask alone.
* The routers will make this selection regardless of the service provider configuration.
Which solution should the engineer include in the design?
- A. Use an IP prefix list to block the desired networks and apply the IP prefix list to BGP neighbors outbound.
- B. Use a route map and prefix list to block the desired networks, and apply the route map to BGP neighbors outbound.
- C. Use a route map and access list to block the desired networks, and apply the route map to BGP neighbors inbound.
- D. Use an IP prefix list to block the desired networks and apply the IP prefix list to BGP neighbors inbound.
Answer: D
NEW QUESTION 60
A customer with an IPv4 only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology services. The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology. Which topology supports these requirements?
- A. NAT64
- B. 6VPE
- C. dual stack
- D. 6to4
Answer: C
NEW QUESTION 61
What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers? (Choose two.)
- A. Modify delay parameters on the links
- B. Use the distribute-list command to filter routes
- C. Implement multiple EIGRP autonomous systems
- D. Used sub-second timers
- E. Use structured hierarchical topology with route summarization
Answer: C,E
NEW QUESTION 62
Which component of Cisco SD-Access integrates with Cisco DNA Center to perform policy segmentation and enforcement through the use of security group access control lists and security group tags?
- A. Cisco Identity Services Engine
- B. Cisco Network Data Platform
- C. Cisco TrustSec
- D. Cisco Application Policy Infrastructure Controller Enterprise Module
Answer: C
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION 63
An engineer is designing a QoS policy that queues excess packets for later transmission. Which mechanism must be included in the design?
- A. RED
- B. WRED
- C. policing
- D. shaping
Answer: D
NEW QUESTION 64
An engineer must design a VPN solution for a company that has multiple branches connecting to a main office.
What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choose two.)
- A. support for AES 256-bit encryption
- B. support for anycast gateway
- C. lower traffic overhead
- D. greater scalability
- E. dynamic spoke-to-spoke tunnels
Answer: D,E
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION 65
A customer requests a VPN solution to connect multiple sites with the company headquarters. All the sites use the same IP subnet. The engineer plans to use VPLS. Which solutions must the engineer include in the design?
- A. address translation to hide overlapping subnets
- B. 802.1Q connectivity on the LAN side of the CE
- C. route exchange with the service provider
- D. different VLANs on each site
Answer: B
NEW QUESTION 66
A company is using OSPF between its HQ location and a branch office. HQ is assigned area 0 and the branch office is assigned area 1. The company purchases a second branch office, but due to circuit delays to HQ, it decides to connect the new branch office to the existing branch office as a temporary measure. The new branch office is assigned to area 2. Which OSPF configuration enables all three locations to exchange routes?
- A. A sham link must be configured between the new branch office and HQ
- B. The new branch office must be configured as a stub area
- C. A virtual link must be configured between the new branch office and HQ
- D. The existing branch office must be configured as a stub area
Answer: C
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION 67
An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology. The network will support an engineering environment where it is necessary for end users to connect their own network switches for testing purposes. Which feature should the architect include in the design to ensure the spanning tree topology is not affected by these rogue switches?
- A. BPDU Skew Detection
- B. root guard
- C. loop guard
- D. BPDU guard
Answer: B
NEW QUESTION 68
An engineer must propose a solution for a campus network that includes the capability to create multiple Layer
3 virtual networks. Each network must have its own addressing structure and routing table for data forwarding.
The solution must be scalable to support hundreds of virtual networks and allow simple configuration and management with minimal administrative overhead. Which solution does the engineer recommend?
- A. multihop IPsec tunneling
- B. multihop MPLS core
- C. hop-by-hop EVN
- D. hop-by-hop VRF-Lite
Answer: C
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION 69
Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?
- A. Reduce the default EIGRP hello interval and hold time
- B. Summarize the access layer networks from each access layer switch toward the aggregation layer
- C. Run BFD on the inter links between EIGRP neighbors.
Answer: C
NEW QUESTION 70
An existing network solution is using BFD in echo mode. Several of the network devices are experiencing high CPU utilization which an engineer has determined is related to the BFD feature. Which solution should the engineer leverage to reduce the CPU load?
- A. Implement slow timers between peers with low CPU resources.
- B. Utilize carrier delay on all routers in the network.
- C. Enable BFD multi-hop on the devices with low CPU resources.
- D. Implement BED asynchronous mode between peers with low CPU resources.
Answer: A
NEW QUESTION 71
Which control-plane technology allows the same subnet to exist across multiple network locations?
- A. FabricPath
- B. VXLAN
- C. ISE mobility services
- D. LISP
Answer: D
NEW QUESTION 72
A network engineer must segregate three interconnected campus networks using IS-IS routing. A two-layer hierarchy must be used to support large routing domains and to avoid more specific routes from each campus network being advertised to other campus network routers automatically. Which two actions does the engineer take to accomplish this segregation? (Choose two.)
- A. Assign the same IS-IS NET value for each campus, and configure internal campus routers with Level 1/ Level 2 routing.
- B. Designate two IS-IS routers as BDR routers at the edge of each campus, and configure one BDR for all Level 1 routers and one BDR for all Level 2 routers.
- C. Utilize different MTU values for each campus network segment. Level 2 backbone routers must utilize a larger MTU size of 9216.
- D. Designate two IS-IS routers from each campus to act as Level 1/Level 2 backbone routers at the edge of each campus network.
- E. Assign a unique IS-IS NET value for each campus, and configure internal campus routers with Level 1 routing.
Answer: D,E
NEW QUESTION 73
Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?
- A. Multicast traffic is transported in the overlay and the EID space for wired and wireless clients.
- B. Rendezvous points must be used in a PIM SSM deployment.
- C. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.
- D. PIM SSM must run in the underlay.
Answer: C
NEW QUESTION 74
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