Use Free 300-420 Exam Questions that Stimulates Actual EXAM [Q78-Q95]

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Use Free 300-420 Exam Questions that Stimulates Actual EXAM

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NO.78 Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)

Use Bidirectional Forwarding Detection

Merge all the areas into one backbone area

Tune OSPF parameters

Make all non-backbone areas stub areas

Span the same IP network across multiple areas.

NO.79 Which control-plane technology allows the same subnet to exist across multiple network locations?

LISP

VXLAN

FabricPath

ISE mobility services

Section: WAN for Enterprise Networks

NO.80 An architect is working on a design to connect a company’s main site to several small to medium- sized remote branches. The solution must include redundant WAN links, but the customer has a limited budget and wants the ability to increase the link speed easily in the future. QoS will not on the branch routers so there is no need for consistent end-to-end QoS. Which solution does the architect propose?

dual-homed WAN MPLS with single edge router

dual-homed Internet with a single edge router running a site-to-site VPN topology

dual-homed WAN MPLS and Internet links via dual edge routers

dual-homed Internet with dual edge routers running a hub-and-spoke VPN topology

NO.81 Refer to the exhibit. A network engineer working for a private service provider with an employee ID: 1234:56:789 must design a BGP solution based on:
– All traffic originating from AS100 must pass through AS200 to reach
the NTP and DHCP server
– When a link failure occurs between R3 and R4, traffic must follow the R2-R9 link to reach the NTP and DHCP server Which solution must the design include?

Routers R3 and R10 advertise an IGP metric into BGP during redistribution in both directions

Router R6 influences the paths of R9 and R11 to the DC with a higher AS-PATH value

Routers R3 and R10 advertise a lower local preference for outgoing traffic and a higher AS-PATH value for incoming traffic

Router R3 applies a local preference of 200 for R1, R2, R9, and R11 routers to reach the data center

NO.82

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?

Maximum-prefix

No-advertise

Next-hop

No Export

NO.83 A customer with an IPv4 only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology services.
The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology.
Which topology supports these requirements?

dual stack

6VPE

6to4

NAT64

NO.84 Which two Cisco ISE features provide benefits to our customers? (Choose two.)

enables them to set traffic encryption across the network

helps them accelerate application deployment and delivery

helps them stop and contain real-time threats

provides network access control

NO.85 Drag and drop the properties from the left onto the protocols they describe on the right.

NO.86 Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right.

NO.87 Drag and drop the characteristics from the left onto the telemetry mode they apply to on the right.

NO.88 Which two routing protocols allow for unequal cost load balancing? (Choose two.)

EIGRP

IS-IS

BGP

OSPF

RIPng

Unequal cost load balancing is a feature that allows traffic to be distributed across unequal-cost paths to the same destination, which can increase network utilization and improve overall performance.
EIGRP (Enhanced Interior Gateway Routing Protocol) and OSPF (Open Shortest Path First) are two routing protocols that support unequal cost load balancing.
In EIGRP, unequal cost load balancing can be achieved by adjusting the “variance” parameter, which is a multiplier that determines the maximum metric of a feasible successor. The feasible successor is a backup route that meets the feasibility condition, which means its reported distance (the sum of the metric from the successor router and the advertised distance to the destination) is less than the current best path’s metric. By default, EIGRP only considers successors with the same metric as the best path, but by increasing the variance, EIGRP can include feasible successors with higher metrics.
In OSPF, unequal cost load balancing can be achieved by enabling the “variance” command, which allows OSPF to use paths with metrics that are up to a certain multiple of the best path’s metric. For example, if the variance is set to 2, OSPF can use paths with a metric that is up to twice the metric of the best path.
IS-IS (Intermediate System to Intermediate System) and BGP (Border Gateway Protocol) do not support unequal cost load balancing.
RIPng (Routing Information Protocol next generation) is a distance-vector routing protocol that does not support unequal cost load balancing.

NO.89

Refer to the exhibit. An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain. Which action should the engineer take?

Make area 1 a NSSA.

Make area 1 a stub.

Make area 1 a standard OSPF area.

Make the area 1 routers part of area 0.

NO.90 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

NO.91 Which NETCONF operation creates filtering that is specific to the session notifications?

<create-subscription>

NO.92 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?

Maximum-prefix

No-advertise

Next-hop

No Export

NO.93 Refer to the exhibit.

Refer to the exhibit. Which method must an architect use to provide connectivity between the mail servers?