Reliable Cisco 300-420 Exam Dumps

Question No: 1

MultipleChoice

Refer to the exhibit.

Refer to the exhibit. A Cisco Catalyst switch is configured to.. only one MAC address to be learned manually on interface gkjO/2. Which command must be run to dynamically learn the devices that are connected to the switch port?

Options

AOption A

BOption B

COption C

DOption D

Question No: 2

MultipleChoice

An engineer is working with NETCONF and Cisco NX-OS based devices. The engineer needs a YANG model that supports a specific feature relevant only to Cisco NX-OS. Which model must the engineer Select?

Options

ANative

BIEEE

COpenConfig

DIETF

Question No: 3

MultipleChoice

Refer to the exhibit.

An architect is designing an EIGRP solution based on these requirements:

* Traffic forwarding should use the best two paths while all links are available

* Single path failure must not impact traffic between branch and HQ

Which solution must the architect select?

Options

AMaximum-paths 2

BAdd-paths 2

CMetric weights 010100

DVariance 2

Question No: 4

MultipleChoice

Which information update is carried by OMP and enables the Cisco SD-WAN to build a secure overlay fabric on top of any public or private transport without regard for the actual link IP?

Options

ATLOC

BRLOC

CLISP PITR

DDTLS

Question No: 5

MultipleChoice

Refer to the exhibit.

Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)

Options

AImplement Enhanced Object Tracking on router R1

Buse a floating static route

CImplement IP SLA on router R1

DImplement PBR on router R1

Euse IP source routing

Question No: 6

MultipleChoice

Exhibit:

Options

AMake R3 an L1L2 router.

BMake R31 an L1 router.

CMake Area 0 L2-only.

DMake R11 an L2 router.

Question No: 7

MultipleChoice

Which type of rendezvous point deployment is standards-based and supports dynamic RP discovery?

Options

Abootstrap router

BAnycast-RP

CAuto-RP

Dstatic RP

Question No: 8

MultipleChoice

Refer to 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?

Options

Adual-stack

B6to4

CISATAP

D6rd

Question No: 9

MultipleChoice

Refer to Exhibit.

Refer to the exhibit. A customer experienced an unexpected network outage when the link between R1 and R2 went down. An architect must design a solution to ensure network continuity in the event the link fails again. Which solution should the design include?

Options

AMake R31 an L1 router.

BMake R3 an L1L2 router

CMake Area 0 L2-only

DMake R11 an L2 router.

Question No: 10

MultipleChoice

Refer to Exhibit.

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?

Options

Aboth routers running EIGRP

Bone router running OSPFv2 and other OSPF v3

Cone router running ISIS and other OSPF v3

Dboth routers running OSPFv2

Question No: 11

MultipleChoice

Refer to exhibit.

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?

Options

ARun BFD on the inter links between EIGRP neighbors.

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

CReduce the default EIGRP hello interval and hold time.

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

Question No: 12

MultipleChoice

Refer to exhibit.

Refer to the exhibit. An architect must design a solution to connect the two ASs. To optimize bandwidth, the design will implement load sharing between router R6 and router R4. Which solution should the design include?

Options

AUse update-source to specify the Loopback interface.

BUse next-hop-serf attributes only for routes that are learned from eBGP peers.

CConfigure the eBGP TTL to support eBGP multihop.

DUse maximum-paths to install multiple paths in the routing table.

Question No: 13

MultipleChoice

Refer to exhibit.

Refer to the exhibit. An architect is designing a BGP solution to connect a remote branch to a service provider. There are several prefixes within the branch that the company does not want to be advertised to the internet. Which solution should the architect use to accomplish this?

Options

ASet the BGP Internet community for all prefixes.

BImplement the NOPEER community.

CUse the BGP No-Advertise community for the prefixes to exclude.

DAttach the No-Export community with the prefixes to exclude

Question No: 14

MultipleChoice

Refer to exhibit.

Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be to Gi1/0/1-10 to follow the architect's recommendation?

Options

APortFast

Broot guard

CUplinkFast

DBPDU guard

Question No: 15

MultipleChoice

Refer to exhibit.

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.)

Options

Aroute summarization

Bprefix lists

Cdistribute lists

Dstub routing

Estatic redistribution

Question No: 16

MultipleChoice

Refer to exhibit.

Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)

Options

AImplement Enhanced Object Tracking on router R1

Buse a floating static route

CImplement IP SLA on router R1

DImplement PBR on router R1

Euse IP source routing

Question No: 17

MultipleChoice

Refer to exhibit.

Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the network to reduce the change of layer2 forwarding loops when the link fails. Which solution should the architect include?

Options

AUtilize 8PDU filter on SW3.

BUtilize loop guard on SW2

CUtilize BPDU guard on SW1

DUtilize root guard on SW1.

Question No: 18

MultipleChoice

Refer to exhibit.

Refer to the exhibit. The distribution switches serve as the layer 3 boundary. HSRP preemption is enabled. When the primary switch comes back after a failure, traffic is initially dropped. Which solution must be implemented to improve the design?

Options

AIncrease the hello timers on both HSRP devices

BUse the preempt delay feature on the primary HSRP device.

CUse the preempt delay feature on the backup HSRP device

DConfigure a higher mac-refresh interval on both HSRP devices

Question No: 19

MultipleChoice

Refer to exhibit.

Refer to the exhibit. An architect must design a solution to connect the network behind R3 with the EIGRP network. Which mechanism should be included to avoid routing loops?

Options

Asplit-horizon

Bsummarization

Cdown bit

Droute tags

Question No: 20

MultipleChoice

Refer to 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?

Options

AMark 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.

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

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

DMark 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

Free Cisco 300-420 Exam Dumps September 2026