Test Online Free Cisco 300-420 Exam Questions and Answers
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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.)
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Question 17Written Answer
DRAG DROP
Drag and drop the characteristics from the left onto the configuration protocols they describe on the right.
A network engineer must optimize a campus OSPF deployment Currently each time a type 1 or type 2 LSA is generated within an area, the OSPF process must recompute the entire SPT.
Which solution improves the recomputation process?
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Question 19Selectable Answer
Refer to the exhibit
A customer requires maximum uptime for the data plane between R1 and R3 running OSPF.
Which solution must the design include for high availability if the routing process on R2 requires maintenance?
Answer:
Question 20Selectable Answer
Refer to the exhibit. A network engineer is designing an OSPF solution to connect a company's remote to a newly provisioned MPLS VPN backbone. Some of the branches have a direct dark fiber connection between each other. The engineer wants to ensure that the dark fibers are used only when the MPLS core is unavailable.
Which solution must the engineer choose?
A customer needs to apply QoS to the network management traffic passing through the GigabitEthernet0/2 interface. All eight queuing classes are in use, so the new requirement must be integrated into the existing policy.
Which solution must the customer choose?
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Question 22Selectable Answer
In a Cisco SD-Access fabric, which node facilities connectivity between the fabric and networks external to the fabric?
Answer:
Question 23Selectable Answer
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?
Answer:
Question 24Selectable Answer
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.)
Answer:
Question 25Selectable Answer
1.An engineer is designing a campus network with Cisco Catalyst 95CO switches in the aggression layer. The design requires running nonblocking Layer 2 MEC from the aggregation layer to the access layer. The Catalyst switches are located on different campus floors for availability reasons, and each access switch veil contam a single VLAN.
Which technology must the engineer choose for the aggregation switches in the design?
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Question 26Selectable Answer
A company is running BGP on a single router, which has two connections to the same ISP.
Which BGP feature ensures traffic is load balanced across the two links to the ISP?
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Question 27Selectable Answer
Refer to the exhibit.
An engineer is planning an IPv4 to IPv6 migration solution for a customer. The routers in the network can support IPv4 and IPv6, except for the DWDM routers. The DWDM routers provide a Layer 2 link in which the routers peer directly with each other across a DWDM circuit. The circuit also provides connectivity between the mail servers.
Which IPv6 migration technique must the engineer deploy?
Answer:
Question 28Selectable Answer
Refer to the exhibit.
An engineer is designing a BGP solution for a client that peers with ISP1 for full Internet connectivity and with ISP2 for direct exchange of routes for several third parties.
Which action, when implemented on the edge routers, enables the client network to reach the Internet through ISP1?
Answer:
Question 29Selectable Answer
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?
Answer:
Question 30Selectable Answer
Which design consideration should be observed when EIGRP is configured on Data Center switches?