Jul-2023 Cisco 300-420 Certification Real 2023 Mock Exam
300-420 Exam Questions and Valid PMP Dumps PDF
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NEW QUESTION # 80
What is the purpose of an edge node in an SD-Access network fabric?
- A. Edge nodes identify and authenticate endpoints and register endpoint information with control plane nodes.
- B. Edge nodes resolve lookup requests from edge and border nodes to locate destination endpoint IDs.
- C. Edge nodes track endpoint IDs to location mappings, along with IPv4, IPv6, or MAC addresses.
- D. Edge nodes are the gateway between the fabric domain and network outside of the fabric.
Answer: A
NEW QUESTION # 81
When designing interdomain multicast, which two protocols are deployed to achieve communication between multicast sources and receivers? (Choose two.)
- A. MP-BGP
- B. MSDP
- C. IGMPv2
- D. MLD
- E. BIDIR-PIM
Answer: A,B
Explanation:
Section: Network Services
NEW QUESTION # 82
Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows. Which technique optimizes the design?
- A. Configure route filter on the router in area 4.
- B. Configure route leaking on the router in area 1.
- C. Configure route leaking on the router in area 2.
- D. Configure the high metric on the router in area 4.
Answer: D
NEW QUESTION # 83
Refer to the exhibit.
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 maximum-paths to install multiple paths in the routing table.
- B. Configure the eBGP TTL to support eBGP multihop.
- C. Use next-hop-serf attributes only for routes that are learned from eBGP peers.
- D. Use update-source to specify the Loopback interface.
Answer: A
NEW QUESTION # 84
When vEdge router redundancy is designed, which FHRP is supported?
- A. GLBP
- B. HSRP
- C. VRRP
- D. OMP
Answer: C
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 85
Which feature provides the capability for intra-VN traffic filtering and control within the Cisco SO-Access architecture?
- A. scalable groups
- B. MAC ACL
- C. service policy
- D. prefix list
Answer: A
NEW QUESTION # 86
Refer to the exhibit. Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)
- A. use R-PVSTP+
- B. use an IGP
- C. use multiple equal-cost links
- D. use multiple unequal-cost links
- E. use HSRP
Answer: B,C
NEW QUESTION # 87
Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right.
Answer:
Explanation:
Explanation
Graphical user interface, diagram Description automatically generated with medium confidence
NEW QUESTION # 88 
Refer to the exhibit A customer wants to adopt a dynamic site-to-site VPN solution to secure communication for VoIP, video, and FTP traffic between the remote branches and the headquarters. The customer also wants the branches to communicate directly, thereby reducing traffic at the headquarters location. The solution must consider that the branch routers are limited in available memory. Which VPN solution meets these requirements?
- A. DMVPN Phase 3 Hierarchical design
- B. DMVPN Phase 3 Hub and Spoke design
- C. DMVPN Phase 2 Hub and Spoke design
- D. DMVPN Phase 1 Hub and Spoke design
Answer: B
NEW QUESTION # 89
An engineer is creating a design to enable IPv6 to run on an existing IPv4 IS-IS network. The IPv4 and IPv6 topologies will match exactly, and the engineer plans to use the same router levels for each protocol per interface. Which IS-IS design is required?
- A. multi topology with transition feature enabled
- B. single topology with transition feature enabled
- C. single topology without enabling transition feature
- D. multi topology without enabling transition feature
Answer: A
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/15-mt/irs-15-mt-book/ip6-route-mu
NEW QUESTION # 90
When a network is designed using IS-IS protocol, which two circuit types are supported? (Choose two.)
- A. nonbroadcast multiaccess
- B. point-to-point
- C. nonbroadcast
- D. point-to-multipoint
- E. multiaccess
Answer: B,E
NEW QUESTION # 91
A router running ISIS is showing high CPU and bandwidth utilization. An engineer discovers that the router is configured as L1/L2 and has L1 and L2 neighbors. Which step optimizes the design to address the issue?
- A. Disable the default behavior of advertising the default route on the L1/L2 router
- B. Configure each interface as either L1 or L2 circuit type
- C. Make this router a DIS for each of the interfaces
- D. Configure the router to be either L1 or L2
Answer: B
NEW QUESTION # 92
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.
Answer:
Explanation:
Explanation
In a dial-in mode, the destination initiates a session to the router and subscribes to data to be streamed. Dialin mode is supported over gRPC in only 64-bit platforms In a dial-out mode, the router initiates a session to the destinations based on the subscription. All 64-bit IOS XR platforms (except for NCS 6000 series routers) support gRPC and TCP protocols. All 32-bit IOS XR platforms support only TCP.
NEW QUESTION # 93
Drag and drop the characteristics from the left onto the YANG models they describe on the right. Not all options are used.
Answer:
Explanation:
Explanation
Diagram Description automatically generated
NEW QUESTION # 94
An architect must create a QoS solution for a customer to ensure that a 40 Mbps Internet connection is shared between four subnets based on these requirements:
* Each subnet must receive no less than 10 Mbps of download bandwidth during peak traffic times.
* A subnet can use up to 40 Mbps during nonpeak traffic times if the other subnets are idle.
* Download traffic must never experience a delay.
Which solution must the architect choose?
- A. shaping and policing
- B. rate-limiting and shaping
- C. bandwidth percentage and policing
- D. bandwidth percentage and rate-limiting
Answer: C
Explanation:
Selected answer: B
"Download traffic must never experience a delay."
This means we shouldn't be using Shaping at any point (since that puts packets into a buffer and sends them out later on when congestion has been reduced) Also: "Rate-limiting" is a bigger term and under it we have 2 things: "Policing" and "Shaping"
NEW QUESTION # 95
Exhibit:
Refer to the exhibit. An engineer is designing a Layer 2 campus network. The design must support fast convergence and leverage as much bandwidth as possible between layers. Distribution switches do support VSS; unfortunately, not all routing protocols are available for use due to license limitations. Which solution must the engineer choose?
- A. EtherChannel
- B. ECMP
- C. MEC
- D. RSTP
Answer: C
NEW QUESTION # 96 
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 WAN 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 load-balances across the paths through R3 and R4 to reach R2
- B. R1 forwards the traffic to R3, but R3 drops the traffic
- C. R1 forwards the traffic to R3 in order to reach R2
- D. R1 has no route to R2 and drops the traffic
Answer: C
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION # 97 
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 distribution layer switches to summarize routes to the core layer.
- C. Configure core layer switches as stub routers.
- D. Configure access layer switches as stub routers.
- E. Configure access layer switches to summarize routes to the distribution layer.
Answer: B,D
NEW QUESTION # 98
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