Cisco Certified 300-420 Dumps Questions Valid 300-420 Materials [Q196-Q211]

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Cisco Certified 300-420 Dumps Questions Valid 300-420 Materials

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Cisco 300-420 exam tests the candidates’ abilities to design and implement advanced enterprise-level network solutions using technologies such as virtualization, automation, security, and network assurance. 300-420 exam also covers topics related to network design methodologies, network services, and network topology. 300-420 exam is intended for network architects, network engineers, and other IT professionals who are responsible for designing and implementing enterprise-level networks.

Cisco 300-420 exam is a 90-minute test with 60-70 multiple-choice questions. 300-420 exam is conducted in English and is available at Pearson VUE test centers worldwide. 300-420 exam fee is $300 USD, and the certification is valid for three years. Candidates who pass the exam will earn the Cisco Certified Design Professional (CCDP) certification.

Q196. Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?

Run BFD on the inter links between EIGRP neighbors.

Summarize the access layer networks from each access layer switch toward the aggregation layer.

Reduce the default EIGRP hello interval and hold time.

Summarize the access layer networks from the aggregation layer toward the core layer.

Q197. Which three ways are SD-Access and ACI Fabric similar? (Choose three.)

use of Virtual Network IDs

use of Endpoint Groups

use of group policy

use of Scalable Group Tags

focus on user endpoints

use of overlays

Q198. 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?

not so stubby

totally not so stubby

totally stubby area

stubby area

LSA type1 + type2 + Defaut required to minimise Router resources utilization -> total stub area.

Q199. 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?

Add a link between access switch A and access switch B

Reconfigure the distribution switch A to become the HSRP Active

Change the link between distribution switch A and distribution switch B to be a routed link

Create an EtherChannel link between distribution switch A and distribution switch B

Q200. Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right.

Q201. Refer to the exhibit.

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?

dual-stack

6to4

ISATAP

6rd

Q202. Refer to the exhibit. An architect must design a solution that uses the direct link between R1 and R2 for traffic from 10.10.10.0/24 toward network 10.10.20.0/24. Which solution should the architect include in the design?

Configure the OSPF cost of the link to a value lower than 30.

Lower the Administrative Distance for OSPF area 0.

Place the link into area 2 and install a new link between R1 and R2 in area 0.

Configure the link to provide multiarea adjacency.

OSPF first look at the prefered path list as below and secondly compare path metric:
Intra-Area (O)
Inter-Area (O IA)
External Type 1 (E1)
NSSA Type 1 (N1)
External Type 2 (E2)
NSSA Type 2 (N2)
So most appropriate answer is to configure R1-R2 link as multiarea adjacency.
under the interface configuration mode:
ip ospf network point-to-point
ip ospf multi-area 1
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/118879-configure- ospf-00.html

Q203. Refer to the exhibit.

Refer to the exhibit. An engineer Is designing a multicampus Layer 3 Infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries In the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer. Which two actions must the engineer take for the network design? (Choose two.)

Configure core layer switches as stub routers.

Configure distribution layer switches to summarize routes to the core layer.

Configure access layer switches as stub routers.

Configure access layer and core layer switches as stub routers.

Configure access layer switches to summarize routes to the distribution layer.

Q204. Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

a new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs

a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs

a new OSPF area for R3 and R4 connections, with R3 and R4 as ABRs

a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs

a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs

Q205. Prior to establishing full-mesh IPsec tunnels in a typical Cisco SD-WAN deployment, which mechanism do WAN Edge routers use to exchange key information for data plane encryption?

They use vSmart controllers as key exchange servers.

They use IKEv2 when exchanging keys with each other.

They use vManage as a key exchange server.

They use vBond as a key exchange server.

Cisco SD-WAN uses vSmart controllers as key exchange servers to establish and manage IPsec tunnels between WAN Edge routers. The vSmart controllers generate and distribute cryptographic keys to the WAN Edge routers, which are then used to encrypt and decrypt traffic over the IPsec tunnels.
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/security/vedge/security- book.pdf

Q206.

Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

a newOSPFarea for R1andR2connections,with R1 and R2as ABRs

a newOSPFarea for R3andR4connections,with R5 and R6as ABRs

a newOSPFarea for R3andR4connections,with R3 and R4as ABRs

a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs

a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs

Q207. Drag and Drop Question
Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right.

Q208. Refer to the exhibit.

Refer to the exhibit. 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?

Mark traffic to DSCP CS5 and assign it to the SIGNALLING class. Then, baseline existing queue sizes to determine if additional bandwidth can be provisioned to the SIGNALLING class.

Mark the traffic to DSCP CS4 and assign it to the SIGNALLING class. Then, prioritize traffic within the class.

Mark the traffic to DSCP CS6 and assign it to the ROUTING class Then, prioritize traffic within the class.

Mark the traffic to DSCP CS2 and assign it to the ROUTING class Then, baseline existing queue sizes to determine if additional bandwidth can be provisioned to the ROUTING class

Q209. An engineer is designing a Layer 3 campus network running EIGRP between the core, aggregation, and access layers. The access layer switches will be connected to the aggregation layer using Layer 3 copper connections. The engineer wants to improve convergence time for access layer switch failures. Which technique must the design include?

enabling BFD for EIGRP on the access layer uplinks

reducing the EIGRP Hello / Hold timer values

EIGRP summarization from core to aggregation layer

EIGRP summarization from access to aggregation layer

Section: Advanced Enterprise Campus Networks

Q210. A network engineer replaced a bad router with a spare, used router in an OSPF network. After the replacement, OSPF neighborship is not being established on one of the interfaces. Which two reasons cause this issue? (Choose two)

authentication mismatch

MTU mismatch

OSPF process numbers do not match on both neighbor routers

OSPF timers match

area numbers match

Q211. Which two functions is the Cisco SD-Access Edge Node responsible for? (Choose two.)

Act as anycast layer 3 gateway

Advertise EID subnets

Map users to virtual network

Act as LISP proxy tunnel router

Route and transport IP traffic

Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#EdgeNode