GuideTorrent 300-420 Exam Questions | Real 300-420 Practice Dumps
Verified 300-420 Exam Dumps Q&As - Provide 300-420 with Correct Answers
NEW QUESTION # 93
Refer to the exhibit.
Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support:
network operation center monitoring end-to-end L3VPN and L2VPN traffic
company adding thousands of routes in the next two years
Which two BGP solutions must the design include? (Choose two.)
- A. Connect multiple IGP'LDP domains using a BGP IPv4 unicast family on the ABR.
- B. Establish full mesh IBGP peering with ail routers in different IGP domains.
- C. Transport site routes using a BGP VPNv4 address family on the PE routers.
- D. Redistribute different IGP domain routes in a BGP IPv4 routing instance.
- E. Apply BGP policies on all routers to filter out ABR and PE loopback IP addresses.
Answer: B,C
NEW QUESTION # 94
An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off from the provider's switch to the customer's router is 1Gbps. Which solution should the engineer include to prevent potential issues with choppy voice traffic?
- A. Implement hierarchical QoS with a parent policing policy.
- B. Reduce the bandwidth of the connection to the router.
- C. Add a bandwidth statement to the router interface.
- D. Implement hierarchical QoS with a parent shaping policy.
Answer: D
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION # 95
Drag and drop the characteristics from the left onto the YANG modules they describe on the right. Not all options are used.
Answer:
Explanation:

NEW QUESTION # 96
Drag and drop the description from the left onto the corresponding WAN connectivity types and categories on the right.
Answer:
Explanation:
Explanation
Diagram Description automatically generated
NEW QUESTION # 97
Drag and drop the descriptions from the left onto the corresponding VPN types on the rights.
Answer:
Explanation:
NEW QUESTION # 98
An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)
- A. violating
- B. marking
- C. shaping
- D. bursting
- E. conforming
Answer: A,E
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/xe-3s/qos-plcshp-xe-3s-book/qos-p
NEW QUESTION # 99
Which design consideration should be observed when EIGRP is configured on Data Center switches?
- A. Perform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.
- B. Lower EIGRP hello and hold timers to their minimum settings to ensure rapid route reconvergence.
- C. Prevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.
- D. Configure multiple EIGRP autonomous systems to segment Data Center services and applications.
Answer: A
NEW QUESTION # 100
Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?
- A. Rendezvous points must be used in a PIM SSM deployment.
- B. Multicast traffic is transported in the overlay and the EID space for wired and wireless clients.
- C. PIM SSM must run in the underlay.
- D. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.
Answer: B
Explanation:
Explanation
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clientshttps://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf
https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/d
NEW QUESTION # 101
Which QoS feature responds to network congestion by dropping lower priority packets?
- A. strict priority
- B. tail drop
- C. WRED
- D. CBWFQ
Answer: C
NEW QUESTION # 102
How is sub-second failure of a transport link detected in a Cisco SD-WAN network?
- A. Hellos are sent between the WAN Edge routers and the vSmart controller.
- B. Link state change messages are sent between vSmart controllers.
- C. BGP is used between WAN Edge routers and the vSmart controller.
- D. BFD runs on the IPsec tunnels between WAN Edge routers.
Answer: D
NEW QUESTION # 103
Which two best practices must be followed when designing an out-of-band management network? (Choose two.)
- A. Facilitate network integration
- B. Ensure network isolation
- C. Ensure that the management network is a backup to the data network
- D. Enforce access control
- E. Back up data using the management network
Answer: B,D
Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Security/SAFE_RG/SAFE_rg/chap9.html
NEW QUESTION # 104 
Refer to the exhibit. An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate 12,000 devices and the branch sites must accommodate
1,000 devices. Which address scheme optimizes network device resources, contains convergence events to the different blocks of the network, and ensures future growth of the network?
- A. * Campus: 10.0.0.0/20
*Branch1: 10.0.64.0/21
Branch2: 10.0.128.0/21 - B. * Campus: 10.0.0.0/16
*Branchi: 10.255.0.0/20
*Branch2: 10.255.16.0/20 - C. Campus: 10.0.0.0/18
*Branch1: 10.0.192.0/21
*Branch2: 10.0.200.0/21 - D. * Campus: 10.0.0.0/10
*Branch1: 10.64.0.0/10
*Branch2: 10.128.0.0/10
Answer: C
NEW QUESTION # 105
Which consideration must be made when designing a Cisco SD-Access fabric underlay?
- A. A unified policy must be used.
- B. Subnets must be reduced to decrease latency.
- C. The default MTU should be increased.
- D. Up to six control planes are supported.
Answer: C
Explanation:
Look under "Underlay Network Design". Its the second bullet point. https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#Underlay_Network_Design
NEW QUESTION # 106
Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the network to reduce the change of layer2 forwarding loops when the link fails. Which solution should the architect include?
- A. Utilize loop guard on SW2
- B. Utilize 8PDU filter on SW3.
- C. Utilize BPDU guard on SW1
- D. Utilize root guard on SW1.
Answer: A
NEW QUESTION # 107
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. firewall placed in data center that fitters any traffic from guests
- B. MPLS Layer 3 VPN with a separate VRF for each branch location
- C. MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests
- D. WAN connectivity from a different service provider for guests
Answer: C
NEW QUESTION # 108
Refer to the exhibit.
A customer is running HSRP on the core routers. Over time the company has grown and requires more network capacity. In the current environment, some of the downstream interfaces are almost fully utilized, but others are not. Which solution improves the situation?
- A. Make router R2 active for half of the VLANs.
- B. Add more interfaces to R1 and R2.
- C. Configure port channel toward downstream switches.
- D. Enable RSTP on the downstream switches.
Answer: A
NEW QUESTION # 109
Refer to the exhibit.
A network engineer must improve the current IS-IS environment. The Catalyst switch is equipped with dual supervisors. Each time a stateful switchover occurs, the network experiences unnecessary route recomputation.
Which solution addresses this issue if the upstream router does not understand graceful restart messaging?
- A. Configure ISIS aggressive timers on both devices.
- B. Enable NSF on the switch.
- C. Enable IS-IS remote LFA FRR on both devices.
- D. Enable NSR on the switch.
Answer: B
NEW QUESTION # 110
What is the purpose of a control plane node in a Cisco SD-Access network fabric?
- A. to detect endpoints in the fabric and inform the host tracking database of EID-to-fabric-edge node bindings
- B. to act as the network gateway between the network fabric and outside networks
- C. to identify and authenticate endpoints within the network fabric
- D. to maintain the endpoint database and mapping between endpoints and edge nodes
Answer: A
NEW QUESTION # 111
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. Use next-hop-serf attributes only for routes that are learned from eBGP peers.
- B. Use maximum-paths to install multiple paths in the routing table.
- C. Configure the eBGP TTL to support eBGP multihop.
- D. Use update-source to specify the Loopback interface.
Answer: B
NEW QUESTION # 112
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: 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 - B. 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 - C. 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 - D. 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
Answer: B
NEW QUESTION # 113
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 a route map and prefix list to block the desired networks, and apply the route map to BGP neighbors outbound.
- B. Use a route map and access list to block the desired networks, and apply the route map to BGP neighbors inbound.
- C. Use an IP prefix list to block the desired networks and apply the IP prefix list to BGP neighbors inbound.
- D. Use an IP prefix list to block the desired networks and apply the IP prefix list to BGP neighbors outbound.
Answer: C
NEW QUESTION # 114
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 creating branch office as a temporary measure. The new branch office is assigned area 2. Which OSPF configuration enables all three locations to exchange routes?
- A. The new branch office must be configured as a stub area
- B. The existing branch office must be configured as a stub area
- C. A sham link must be configured between the new branch office and HQ
- D. A virtual link must be configured between the new branch office and HQ
Answer: D
NEW QUESTION # 115
......
Get Top-Rated Cisco 300-420 Exam Dumps Now: https://lead2pass.guidetorrent.com/300-420-dumps-questions.html