300-420 Free Practice Test

Which two statements describe source trees in a multicast environment? (Choose two.)

1. A. Source trees guarantee the minimum amount of network latency for forwarding multicast traffic
2. B. Source trees create an optimal path between the source and the receivers
3. C. Source trees use a single common root placed at some chosen point in the network
4. D. Source trees can introduce latency in packet delivery
5. E. Source trees can create suboptimal paths between the source and the receivers

Correct Answer: AB

Which design consideration should be observed when EIGRP is configured on Data Center switches?

1. A. Perform manual summarization on all Layer 3 interfaces to minimize the size of the routing table.
2. B. Prevent unnecessary EIGRP neighborships from forming across switch virtual interfaces.
3. C. Lower EIGRP hello and hold timers to their minimum settings to ensure rapid route reconvergence.
4. D. Configure multiple EIGRP autonomous systems to segment Data Center services and applications.

Correct Answer: A

What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)

1. A. It decreases latency to applications hosted by public cloud service provider.
2. B. It decreases latency on Internet circuits.
3. C. It increases the speed of delivery of site deployments through zero-touch provisioning.
4. D. It increases the total available bandwidth on Internet circuits.
5. E. It alleviates network traffic on MPLS circuits.

Correct Answer: AE

Which NETCONF operation creates filtering that is specific to the session notifications?

1. A. <create-subscription>
2. B.
3. C.
4. D.

Correct Answer: A

In an SD-WAN architecture, which methods are used to bootstrap a vEdge router?

1. A. DHCP options or manual configuration
2. B. vManage or DNS records
3. C. ZTP or manual configuration
4. D. DNS records or DHCP options

Correct Answer: C