Quality 300-420 PDF Dumps - 300-420 Exam Questions
Most UptoDate Cisco 300-420 Exam Dumps PDF 2021
#2 - Refer to Official Exam Guide
Commonly, the vendor offers an official exam guide for this and its other tests. These exam guides are the ideal way to understand the exam objectives in a detailed manner. For 300-420, you have the CCNP Enterprise Design ENSLD 300-420 Official Cert Guide: Designing Cisco Enterprise Networks as an option. Written by Steve Jordan and Anthony Bruno, this study guide has been recently published and is filled with relevant information about ENSLD 300-420 exam topics. Here, each chapter is packed with practical examples and relevant contexts. Plus, the systematic and logical coverage of enterprise designing concepts is noteworthy.
Cisco 300-420: Target audience
The Cisco 300-420 test is designed for Wireless Design Engineers, Network Managers, Network Design Engineers, System Engineers, and Network Administrators. It is targeted at those individuals who want to certify or prove their knowledge and mastery in designing Cisco enterprise networks. The typical candidates for this Cisco certification exam are those people who are looking to be certified in the enterprise networks. They should have at least 3 years of hands-on experience in the field of designing these networks related to Cisco.
NEW QUESTION 62
An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to monitor the device state. Which solution limits impact on the device and provides the required data?
- A. IPFIX
- B. on-change subscription
- C. static telemetry
- D. periodic subscription
Answer: A
NEW QUESTION 63
Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)
- A. use a floating static route
- B. use IP source routing
- C. Implement Enhanced Object Tracking on roster R1
- D. Implement IP SLA on router R1
- E. Implement PBR on router R1
Answer: C,D
NEW QUESTION 64
How do endpoints inside an SD-Access network reach resources outside the fabric?
- A. Fabric borders use VRFs to map VNs to VRFs
- B. A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network
- C. a VRF fusion router is used to map resources in one VN to another VN
- D. SD-Access transit links are used to transport encapsulated traffic from one fabric to another
Answer: B
NEW QUESTION 65
A customer is discussing QoS requirements with a network consultant. The customer has specified that endto- end path verification is a requirement. Which QoS solution meets this requirement?
- A. marking traffic at the access layer with DSCP to support the traffic flows
- B. IntServ model with RSVP to support the traffic flows
- C. marking traffic at the access layer with CoS to support the traffic flows
- D. DiffServ model with PHB to support the traffic flows
Answer: B
NEW QUESTION 66
An engineer is upgrading a company's main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?
- A. Use a route-map to prevent all prefixes from being advertised to either ISP.
- B. Tag incoming routes from both ISPs with BGP community no-export.
- C. Lower the MED for updates sent to the secondary ISP.
- D. Modify the local-preference for routes incoming from the primary ISP.
Answer: B
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION 67
Refer to the exhibit. An architect must design a solution to connect the two ASs. To optimize bandwidth, the design will implement load sharing between router R6 and router R4. Which solution should the design include?
- A. Configure the eBGP TTL to support eBGP multihop.
- B. Use update-source to specify the Loopback interface.
- C. Use next-hop-serf attributes only for routes that are learned from eBGP peers.
- D. Use maximum-paths to install multiple paths in the routing table.
Answer: D
NEW QUESTION 68
Refer to the exhibit.
EIGRP has been configured on all links. The spoke nodes have been configured as EIGRP stubs, and the WAN links to R3 have higher bandwidth and lower delay than the links to R4. When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?
- A. R1 has no route to R2 and drops the traffic
- B. R1 load-balances across the paths through R3 and R4 to reach R2
- C. R1 forwards the traffic to R3 in order to reach R2
- D. R1 forwards the traffic to R3, but R3 drops the traffic
Answer: A
NEW QUESTION 69
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. Used sub-second timers
- C. Implement multiple EIGRP autonomous systems
- D. Use structured hierarchical topology with route summarization
- E. Use the distribute-list command to filter routes
Answer: C,D
NEW QUESTION 70
An engineer uses Postman and YANG to configure a router with:
Which get-config replay verifies that the model set was designed correctly?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
NEW QUESTION 71
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
- A. Empty data subscriptions do not generate empty update notifications.
- B. The primary push update is sent immediately and cannot be delayed.
- C. Updates that contain changes within the data are sent only when changes occur.
- D. Periodic updates include a full copy of the data that is subscribed to.
Answer: D
Explanation:
Section: Automation
NEW QUESTION 72
Which two tasks must you perform to configure DHCP snooping on a device? (Choose two.)
- A. Enable DHCP option 82
- B. Enable VRF support for the DHCP relay agent
- C. Enable DHCP snooping globally
- D. Enable DHCP packet validation on the device
- E. Enable DHCP snooping on the VLAN
Answer: C,E
Explanation:
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/4_1/nx-os/security/configuration/ guide/sec_nx-os-cfg/sec_dhcpsnoop.html
NEW QUESTION 73
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 static routes tied to an IP SLA to prefer the primary path while a floating static route points to the backup connection.
- B. Use BGP with the multipath feature enabled to force traffic via the primary path when available.
- 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: A
NEW QUESTION 74
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. Run BFD on the inter links between EIGRP neighbors.
- C. Summarize the access layer networks from each access layer switch toward the aggregation layer
Answer: B
NEW QUESTION 75
Which statement describes what happens if all VSL connections between the virtual switch members are lost?
- A. The VSS transitions to the dual active recovery mode, and only the new active virtual switch continues to forward traffic.
- B. Both virtual switch members cease to forward traffic.
- C. The VSS transitions to the dual active recovery mode, and both virtual switch members continue to forward traffic independently.
- D. The virtual switch members reload.
Answer: A
Explanation:
Q. What happens if all VSL connections between the virtual switch members are lost?
A. VSLs can be configured with up to eight links between the two switches across any combination of line cards or supervisor ports to provide a high level of redundancy. If for some rare reason all VSL connections are lost between the virtual switch members leaving both the virtual switch members up, the VSS will transition to the dual active recovery mode.
The dual active state is detected rapidly (subsecond) by any of the following three methods:
Enhancement to PagP used in MEC with connecting Cisco switches
L3 Bidirectional Forwarding Detection (BFD) configuration on a directly connected link (besides VSL) between virtual switch members or through an L2 link through an access layer switch L2 Fast-Hello Dual-Active Detection configuration on a directly connected link (besides VSL) between virtual switch members (supported with 12.2(33)SXI) In the dual active recovery mode, all interfaces except the VSL interfaces are in an operationally shut down state in the formerly active virtual switch member. The new active virtual switch continues to forward traffic on all links.
Reference: http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9336/ prod_qas0900aecd806ed74b.html
NEW QUESTION 76
Refer to the exhibit.
An engineer must optimize the traffic flow of the network. Which change provides a more efficient design between the access and the distribution layer?
- A. Add a link between access switch A and access switch B
- B. Change the link between distribution switch A and distribution switch B to be a routed link
- C. Create an EtherChannel link between distribution switch A and distribution switch B
- D. Reconfigure the distribution switch A to become the HSRP Active
Answer: D
NEW QUESTION 77
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