Updated Cisco 300-420 Dumps – Check Free 300-420 Exam Dumps (2024)
Updated 300-420 exam with Cisco Real Exam Questions
NEW QUESTION # 107
A network solution is being designed for a company that connects to multiple Internet service providers.
Which Cisco proprietary BGP path attribute will influence outbound traffic flow?
- A. Community
- B. AS Path
- C. Weight
- D. MED
- E. Local Preference
Answer: C
NEW QUESTION # 108
Which two statements describe source trees in a multicast environment? (Choose two.)
- A. Source trees can create suboptimal paths between the source and the receivers
- B. Source trees guarantee the minimum amount of network latency for forwarding multicast traffic
- C. Source trees use a single common root placed at some chosen point in the network
- D. Source trees can introduce latency in packet delivery
- E. Source trees create an optimal path between the source and the receivers
Answer: B,E
Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16-5/imc-pim-xe-16-5-book/imc-tech-oview.html
NEW QUESTION # 109
Drag and drop the characteristics from the left onto the telemetry mode they apply to on the right.
Answer:
Explanation:
NEW QUESTION # 110
An architect is working on a design to connect a company's main site to several small to medium-sized remote branches. The solution must include redundant WAN links, but the customer has a limited budget and wants the ability to increase the link speed easily in the future. QoS will not on the branch routers so there is no need for consistent end-to-end QoS. Which solution does the architect propose?
- A. dual-homed WAN MPLS and Internet links via dual edge routers
- B. dual-homed Internet with a single edge router running a site-to-site VPN topology
- C. dual-homed WAN MPLS with single edge router
- D. dual-homed Internet with dual edge routers running a hub-and-spoke VPN topology
Answer: B
NEW QUESTION # 111
Refer to the exhibit. An engineer is designing a multicampus Layer 3 infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries in the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer. Which two actions must the engineer take for the network design? (Choose two.)
- A. Configure access layer and core layer switches as stub routers.
- B. Configure core layer switches as stub routers.
- C. Configure access layer switches to summarize routes to the distribution layer.
- D. Configure distribution layer switches to summarize routes to the core layer.
- E. Configure access layer switches as stub routers.
Answer: D,E
Explanation:
https://www.ccexpert.us/network-design/distribution-layer-functionality.html
NEW QUESTION # 112
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
- A. Updates that contain changes within the data are sent only when changes occur.
- B. Periodic updates include a full copy of the data that is subscribed to.
- C. The primary push update is sent immediately and cannot be delayed.
- D. Empty data subscriptions do not generate empty update notifications.
Answer: B
Explanation:
Periodic updates contain a full copy of the subscribed data element or table for all supported transport protocols.
https://www.cisco.com/c/en/us/td/docs/ios-
xml/ios/prog/configuration/166/b_166_programmability_cg/model_driven_telemetry.html
NEW QUESTION # 113
A branch office has a primary L3VPN MPLS connection back to the main office and an IPSEC VPN tunnel that serves as backup. Which design ensures that data is sent over the backup connection only if the primary MPLS circuit is down?
- A. Use BGP with the multipath feature enabled to force traffic via the primary path when available.
- B. Use static routes tied to an IP SLA to prefer the primary path while a floating static route points to the backup connection.
- C. Use EIGRP to establish a neighbor relationship with the main office via L3VPN MPLS and the IPSEC VPN tunnel.
- D. Use OSPF with a passive-interface command on the backup connection.
Answer: D
NEW QUESTION # 114
Drag and drop the characteristics from the left onto the Yang model they describe on the right.
Select and Place:
Answer:
Explanation:
NEW QUESTION # 115
Which PIM mode uses a shared tree only?
- A. sparse
- B. source-specific
- C. bidirectional
- D. dense
Answer: C
Explanation:
In bidirectional mode, traffic is routed only along a bidirectional shared tree that is rooted at the rendezvous point (RP) for the group https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-tech-oview.html#GUID-51D0D6DF-E7F1-4A0E-8E31-D7ED464DF2AC
NEW QUESTION # 116
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. Utilize carrier delay on all routers in the network.
- B. Implement slow timers between peers with low CPU resources.
- C. Implement BED asynchronous mode between peers with low CPU resources.
- D. Enable BFD multi-hop on the devices with low CPU resources.
Answer: B
NEW QUESTION # 117
Drag and drop the components in a Cisco SD-Access architecture from the left onto their descriptions on the right.
Answer:
Explanation:
NEW QUESTION # 118
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 Application Policy Infrastructure Controller Enterprise Module
- C. Cisco Network Data Platform
- D. Cisco TrustSec
Answer: D
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 119
Which control-plane technology allows the same subnet to exist across multiple network locations?
- A. LISP
- B. FabricPath
- C. ISE mobility services
- D. VXLAN
Answer: A
Explanation:
VXLAN is a data plane technology - LISP is control plane related.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
NEW QUESTION # 120
An engineer must design a multicast network for a financial application.
Most of the multicast sources also receive multicast traffic (many-to-many deployment model).
To better scale routing tables, the design must not use source trees.
Which multicast protocol satisfies these requirements?
- A. PIM-SM
- B. BIDIR-PIM
- C. PIM-SSM
- D. MSDP
Answer: B
Explanation:
BIDIR-PIM is designed to be used for many-to-many applications within individual PIM domains.
Multicast groups in bidirectional PIM mode can scale to an arbitrary number of sources without incurring overhead due to the number of sources.
https://www.cisco.com/c/dam/en/us/products/collateral/ios-nx-os-software/multicast- enterprise/prod_white_paper0900aecd80310db2.pdf
NEW QUESTION # 121
An engineer is designing a WAN solution for a customer with teams in different branch locations that need to communicate The teams also need to access enterprise applications hosted in the data center and the cloud The customer also must provide guests with connectivity to the internet only, and the internet gateway is located in the data center Which solution must the engineer choose?
- A. MPLS Layer 3 VPN with a separate VRF for each branch location
- B. firewall placed in data center that fitters any traffic from guests
- C. WAN connectivity from a different service provider for guests
- D. MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests
Answer: D
NEW QUESTION # 122
Refer to the exhibit.
An engineer must design a WAN solution so that ISP-1 is always preferred over ISP-2. The path via ISP-2 is considered as a backup and must be used only when the path to ISP-1 is down. Which solution must the engineer choose?
- A. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: LOW local-preference
- Routes advertised to R2: community NO-ADVERTISE
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 5x AS-path prepend
- Routes received from ISP-2: HIGH local-preference
- Routes advertised to R1: no action
- Routes received from R1: community NO-ADVERTISE - B. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: HIGH local-preference
- Routes advertised to R2: no action
- Routes received from R2: community NO-EXPORT
R2:
- Routes advertised to ISP-2:5x AS-path prepend
- Routes received from ISP-2: LOW local-preference
- Routes advertised to R1: community NO-ADVERTISE
- Routes received from R1: no action - C. R1:
- Routes advertised to ISP-1: 5x AS-path prepend
- Routes received from ISP-1: LOW local-preference
- Routes advertised to R2: community NO-ADVERTISE
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 0x AS-path prepend
- Routes received from ISP-2: HIGH local-preference
- Routes advertised to R1: community NO-EXPORT
- Routes received from R1: no action - D. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: HIGH local-preference
- Routes advertised to R2: community NO-EXPORT
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 5x AS-path prepend
- Routes received from ISP-2: LOW local-preference
- Routes advertised to R1: no action
- Routes received from R1: no action
Answer: D
NEW QUESTION # 123
Refer to the exhibit. AS65533 and AS65530 are announcing a partial Internet routing table as well as their IP subnets. An architect must create a design that ensures AS64512 become a transit AS. Which filtering solution must the architect choose?
- A. no-export
- B. No-advertise
- C. Next-hop
- D. Maximum-prefix
Answer: A
NEW QUESTION # 124
An engineer is looking for a standards-driven YANG model to manage a multivendor network environment.
Which model must the engineer choose?
- A. Native
- B. OpenConfig
- C. IETF
- D. IEEE NETCONF
Answer: C
NEW QUESTION # 125
Which component of the SD-Access fabric is responsible for communicating with networks that are external to the fabric?
- A. control plane nodes
- B. intermediate nodes
- C. border nodes
- D. edge nodes
Answer: C
NEW QUESTION # 126
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Cisco 300-420: Recommended experience
To pass the 300-420 exam, the applicants should demonstrate their knowledge of enterprise design, including advanced enterprise campus networks, advanced addressing and routing solutions, security service, SDA, and network services. Also, they should have earned the Cisco CCNA certificate or its equivalent knowledge. However, this is not a prerequisite but just a recommendation. Moreover, the learners should be knowledgeable about automation and advanced enterprise campus networks. In addition, it is also recommended that they have expertise in advanced addressing and routing solutions.
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