[Dec-2024] Cisco 300-420 Dumps – Reduce Your Chance of Failure in 300-420 Exam
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NEW QUESTION # 92
Which two tasks must you perform to configure DHCP snooping on a device? (Choose two.)
- A. Enable DHCP snooping globally
- B. Enable DHCP snooping on the VLAN
- C. Enable VRF support for the DHCP relay agent
- D. Enable DHCP option 82
- E. Enable DHCP packet validation on the device
Answer: A,B
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 # 93
Drag and Drop Question
Drag and drop the model-driven telemetry considerations from the left onto the modes they apply to on the right.
Answer:
Explanation:
NEW QUESTION # 94
Refer to the exhibit.
Refer to the exhibit. An engineer must design an address translation solution to provide Internet connectivity for the corporate network. The design Is restricted to the 172.16.168.0/22 subnet. Which solution must the engineer choose?
- A. stateless NAT66
- B. stateless NAT64
- C. stateful NAT66
- D. stateful NAT64
Answer: D
NEW QUESTION # 95
Refer to the exhibit.
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 the high metric on the router in area 4.
- C. Configure route leaking on the router in area 1.
- D. Configure route leaking on the router in area 2.
Answer: B
NEW QUESTION # 96
Refer to the exhibit.
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: 10.0.0.0/16
Branchi: 10.255.0.0/20
Branch2: 10.255.16.0/20 - B. * Campus: 10.0.0.0/18
Branch1: 10.0.192.0/21
Branch2: 10.0.200.0/21 - C. * Campus: 10.0.0.0/10
Branch1: 10.64.0.0/10
Branch2: 10.128.0.0/10 - D. * Campus: 10.0.0.0/20
Branch1: 10.0.64.0/21
Branch2: 10.0.128.0/21
Answer: B
NEW QUESTION # 97 
Refer to the exhibit. An architect must create a stable and scalable EIGRP solution for a customer. The design must:
*conserve bandwidth, memory, and CPU processing
*prevent suboptimal routing
*avoid any unnecessary queries
Which two solutions must the architect select? (Choose two.)
- A. stub routing
- B. route summarization
- C. static redistribution
- D. prefix lists
- E. distribute lists
Answer: B,E
NEW QUESTION # 98
Refer to the exhibit.
An architect must design an IPv6 migration solution for an enterprise customer to support these requirements:
* Clients will transition to the new IPv6 network, which provides NAT64 and IPv6 DNS resolution services, using the same DNS name that points to the IPv4 address.
* The service provider will create a client-facing IPv6 interface with a new IPv6 virtual address that points to the same IPv4 DNS server.
* The service provider will support clients that use global IPv6 addresses and encapsulate IPv4 packets into IPv6 tunnels.
Which two migration solutions must the architect choose? (Choose two.)
- A. Use dual-stack lite from the devices to the core MPLS network.
- B. Use NAT44/64 from the devices to the core MPLS network.
- C. Use dual-stack lite from the MPLS network to the IGR.
- D. Use IPv6 tunneling from the devices to the core MPLS network.
- E. Use NAT44/64 from the MPLS network to the IGR.
Answer: A,E
NEW QUESTION # 99
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: D
NEW QUESTION # 100
Which design consideration must be made when dual WAN Edge routers are deployed at a branch site?
- A. Configure BFD between WAN Edge routers to detect sub-second link failures.
- B. Traffic must be symmetrical as it egresses the WAN Edges and returns from remote sites for DPI to function properly.
- C. Use BGP AS-path prepending to influence egress traffic and use MED to influence ingress traffic from the branch.
- D. HSRP priorities must match the OMP routing policy to prefer one WAN Edge over the other.
Answer: C
Explanation:
Section: WAN for Enterprise Networks
NEW QUESTION # 101
Refer to the exhibit.
An engineer is designing a routing solution for a customer. The design must ensure that a failure of network
10.1.0.0/24, 10.1.2.0/24, 10.2.1.0/24, or 10.2.3.0/24 does not impact the core. It also requires fast convergence time during any link failover in the core or access networks. Which solution must the engineer select?
- A. Add aggregation layer between core and access networks.
- B. Enable summarization on routers A and C.
- C. Enable graceful restart on routers A and C.
- D. Enable FRR for the connected networks of routers A and C.
Answer: D
NEW QUESTION # 102
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 OSPF with a passive-interface command on the backup connection.
- D. Use EIGRP to establish a neighbor relationship with the main office via L3VPN MPLS and the IPSEC VPN tunnel.
Answer: C
NEW QUESTION # 103
What statement is true regarding the current time in Enterprise Networking history?
- A. advent of cloud computing
- B. advent of IoT
- C. technology pace of change
- D. pervasive use of mobile devices
Answer: C
NEW QUESTION # 104
In IS-IS networks, the backup designated router (BDR) forms adjacencies to what router or routers?
- A. It forms an adjacency only with the DR
- B. The BDR only becomes adjacent when the DR is down
- C. There is no BDR in IS-IS
- D. It forms adjacencies with all routers
Answer: C
NEW QUESTION # 105
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. DiffServ model with PHB to support the traffic flows
- C. IntServ model with RSVP to support the traffic flows
- D. marking traffic at the access layer with CoS to support the traffic flows
Answer: C
NEW QUESTION # 106
An engineer is designing a QoS solution for a customer. The customer's internet connection has a bandwidth of 10 Mbps. The design must ensure that traffic bursts of data do not exceed the bandwidth of the connection and that received traffic does not starve out business-critical traffic.
Which solution must the engineer choose?
- A. Configure the queuing default queue for shaping inbound and policing outbound.
- B. Configure the queuing default queue for shaping outbound and policing inbound.
- C. Configure the queuing default queue for shaping inbound and policing inbound.
- D. Configure the queuing default queue for shaping outbound and policing outbound.
Answer: B
NEW QUESTION # 107
An engineer must design an in-band management solution for a customer with branch sites. The solution must allow remote management of the branch sites using management protocols over an MPLS WAN. Queueing is implemented at the remote sites using these classes:
How must the solution prioritize the management traffic over the WAN?
- A. Mark the traffic with DSCP CS2 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to Class3
- B. Mark the traffic with DSCP CS6 and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2
- C. Mark the traffic with DSCP CS1 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to CIass3.
- D. Mark the traffic with DSCP EF and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2.
Answer: A
NEW QUESTION # 108
Which two statements are true regarding Cisco ISE? (Choose two.)
- A. The major business outcomes of ISE are enhanced user experience and secure VLAN segmentation.
- B. ISE plays a critical role in SD-Access.
- C. Without integration with any other product ISE can track the actual physical location of a wireless endpoint as it moves.
- D. ISE can provide data about when a specific device connected to the network.
- E. An ISE deployment requires only a Cisco Access Control System appliance.
Answer: B,D
NEW QUESTION # 109
When designing interdomain multicast, which two protocols are deployed to achieve communication between multicast sources and receivers? (Choose two.)
- A. IGMPv2
- B. MLD
- C. MP-BGP
- D. MSDP
- E. BIDIR-PIM
Answer: C,D
Explanation:
MSDP (Multicast interdomain discovery protocol) should exchange routing information using BGP.
NEW QUESTION # 110
Drag and Drop Question
Drag and drop the elements from the left onto the YANG models where they and used on the right.
Answer:
Explanation:
NEW QUESTION # 111
Refer to the exhibit. An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain. Which action should the engineer take?
- A. Make area 1 a NSSA.
- B. Make area 1 a standard OSPF area.
- C. Make area 1 a stub.
- D. Make the area 1 routers part of area 0.
Answer: A
Explanation:
Area 1 should be an NSSA because of the ASBR advertising EIGRP routes.
NEW QUESTION # 112
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