Test Online Free Cisco 300-420 Exam Questions and Answers
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A network engineer is designing a network for AS100. The design should ensure that all traffic enters AS100 via link 1 unless there is a network failure. In the event of a failure, link 2 should function as the path for incoming traffic.
Which solution should the design include?
Answer:
Question 48Selectable Answer
An engineer is designing a multicast network for a financial application Most of the multicast sources also receive multicast traffic (many-to-many deployment model). To better routing tables, the design must not use source trees.
Which multicast protocol satisfies these requirements?
Answer:
Question 49Selectable Answer
Which two functions does the control plane node provide in a Cisco SD-Access architecture? (Choose two.)
Answer:
Question 50Selectable Answer
An engineer uses Postman and YANG to configure a router with:
✑ OSPF process ID 200
✑ network 172.16.10.128/26 enabled for Area 0
Which get-config reply verifies that the model set was designed correctly?
A)
B)
C)
D)
Answer:
Question 51Selectable Answer
Refer to the exhibit.
AS65533 and AS65530 are announcing a partial Internet routing table as well as their IP subnets. An architect must create a design that ensures AS64512 become a transit AS.
Which filtering solution must the architect choose?
Answer:
Question 52Selectable Answer
A network engineer must connect two sites across a public network using a secure tunneling technology that
supports multicast traffic.
Which technology must be chosen?
Answer:
Question 53Selectable Answer
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?
Answer: Explanation:
"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"
Question 54Written Answer
DRAG DROP
Drag and drop the characteristics from the left onto the telemetry mode they apply to on the right.
Answer:
Question 55Selectable Answer
Refer to the exhibit.
An architect is developing a solution to consolidate networks while retaining device redundancy. The routing protocol for the WAN routers must be open standard, ensure high availability, and provide the fastest convergence time.
Which solution must the design include?
Answer: Explanation:
EIGRP has a function called "EIGRP Ipv6" (But that can still be called "EIGRP")
Question 56Selectable Answer
An engineer must connect a new remote site to an existing OSPF network. The new site consists of two low-end routers, one for WAN, and one for LAN. There is no demand for traffic to pass through this area.
Which area type does the engineer choose to provide minimal router resources utilization, while still allowing for full connectivity to the rest of the network?
Answer:
Question 57Selectable Answer
An engineer must design a QoS solution for a customer. The network currently supports data only, but the customer will roll out VoIP and IP video in conjunction with the new QoS solution. The engineer plans to use DiffServ.
To ensure priority for voice services, which model must the design include?
Answer:
Question 58Selectable Answer
When designing interdomain multicast, which two protocols are deployed to achieve communication between multicast sources and receivers? (Choose two.)
Answer:
Question 59Selectable Answer
Which topology within a network underlay eliminates the need for first hop redundancy protocols while improving fault tolerance, increasing resiliency, and simplifying the network?
Answer:
Question 60Selectable Answer
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?
