Cisco 300-420 ENSLD Exam Questions Instant Access

Question 1

An engineer is designing a PIM Anycast RP solution between two data centers. The design must ensure that RP1 in DC1 and RP2 in DC2 inform each other about specific sources that have joined locally. Which solution must the engineer choose?

AProvision the RPs on the same IP subnet and extend the subnet at Layer 2 between data centers

BEnable MSDP between RPs using separate unique loopback interfaces

CEnable MSDP between RPs using the configured Anycast RP address

DNo action is required because PIM registers from the source will, by default, reach each RP

Answer : B

In Anycast RP, two or more RPs are configured with the same IP address on loopback interfaces. The Anycast RP loopback address should be configured with a 32-bit mask, making it a host address. All the downstream routers should be configured to 'know' that the Anycast RP loopback address is the IP address of their local RP. IP routing automatically will select the topologically closest RP for each source and receiver.

MSDP used for Anycast RP is an intradomain feature that provides redundancy and load-sharing capabilities. Enterprise customers typically use Anycast RP for configuring a Protocol Independent Multicast sparse mode (PIM-SM) network to meet fault tolerance requirements within a single multicast domain.

https://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/anycast.html#wp1029118

https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/115011-anycast-pim.html

' You need to have a loopback on each prospective RP router, which is different than the loopback that is being used as the RP address.'

Question 2

Refer to the exhibit.

Refer to the exhibit. An architect is designing a Layer 3 campus network The design must hide network instability, reduce network overhead, and conserve critical device memory Which route summarization solution must the architect select?

A* The core layer must advertise a default route toward the aggregation layer
* The VLAN subnets must be summarized into 10 0 0 0.'16 at the aggregation layer and advertised to the core layer

B* The core layer must advertise a default route toward the aggregation layer
* The VLAN subnets must be summarized into 10 0 0 0/16 at the access layer and advertised to the aggregation layer

C* The aggregation layer must advertise a default route toward the access layer.
* The VLAN subnets must be summarized into 10 0.0 0/16 at the aggregation layer and advertised to the core layer

D* The aggregation layer must advertise a default route toward the core layer
* The VLAN subnets must be summarized into 10 0 0 0.116 at the aggregation layer and advertised to the access layer

Answer : C

Question 3

Refer to the exhibit.

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?

ADMVPN Phase 2 Hub and Spoke design

BDMVPN Phase 3 Hub and Spoke design

CDMVPN Phase 1 Hub and Spoke design

DDMVPN Phase 3 Hierarchical design

Answer : B

Question 4

An engineer must design a management network that enables SSH, NTP, FTP, and SNMP over the production network. The design requires the management of routers and switches that exist across different networks. Which feature must the design include?

AManagement Plane Protection

Bdedicated management console connection per device

Cterminal server

Ddedicated management VRF connection per device

Answer : D

Question 5

At which layer does Cisco Express Forwarding use adjacency tables to populate addressing information?

ALayer4

BLayer 2

CLayer 1

DLayer 3

Answer : B

Question 6

What is the role of a control-plane node in a Cisco SD-Access architecture?

Afabric device that connects wired endpoints to the SD-Access fabric

Bmap system that manages endpoint to device relationships

Cfabric device that connects APs and wireless endpoints to the SD-Access fabric

Dmap system that manages External Layer 3 networks

Answer : B

Question 7

What is the purpose of an edge node in an SD-Access network fabric?

AEdge nodes identify and authenticate endpoints and register endpoint information with control plane nodes.

BEdge nodes track endpoint IDs to location mappings, along with IPv4, IPv6, or MAC addresses.

CEdge nodes are the gateway between the fabric domain and network outside of the fabric.

DEdge nodes resolve lookup requests from edge and border nodes to locate destination endpoint IDs.

Answer : A

Cisco Designing Cisco Enterprise Networks Exam 300-420 ENSLD Exam Questions