300-420 Exam Questions
421 real 300-420 exam questions with expert-verified answers and explanations. Page 2 of 9.
- Question #52Network Services
An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)
QoSTraffic PolicingBandwidth ControlTraffic Classification - Question #53Network Services
Which QoS feature responds to network congestion by dropping lower priority packets?
QoSCongestion AvoidanceWREDPacket Dropping - Question #54Advanced Addressing and Routing Solutions
Which two BGP features will result in successful route exchanges between eBGP neighbors sharing the same AS number? (Choose two.)
BGPeBGPAS PathRoute Exchange - Question #55Advanced Addressing and Routing Solutions
A company is running BGP on a single router, which has two connections to the same ISP. Which BGP feature ensures traffic is load balanced across the two links to the ISP?
BGPLoad BalancingMultipathRouting - Question #56Advanced Enterprise Campus Networks
What is the purpose of an edge node in an SD-Access network fabric?
SD-AccessEdge NodeFabric RoleEndpoint Identification - Question #58Advanced Addressing and Routing Solutions
Which OSPF area blocks LSA Type 3, 4 and 5, but allows a default summary route?
OSPFArea TypesLSA FilteringRouting Protocols - Question #59Advanced Addressing and Routing Solutions
Which two options are requirements for EIGRP authentication? (Choose two)
EIGRP AuthenticationRouting Protocol SecurityInterface ConfigurationKey Management - Question #60Advanced Addressing and Routing Solutions
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. W...
OSPF NeighborshipOSPF TroubleshootingMTUAuthentication - Question #61WAN for Enterprise Networks
You are implementing WAN access for an enterprise network while running applications that require a fully meshed network, which two design standards are appropriate for such an env...
WAN DesignDMVPNMPLS VPNFull Mesh Topology - Question #62Advanced Enterprise Campus Networks
Which consideration must be taken into account when using the DHCP relay feature in a Cisco SD-Access Architecture?
SD-AccessDHCP RelayDHCP Option 82Network Services - Question #63Automation
An engineer is looking for a standards-driven YANG model to manage a multivendor network environment. Which model must the engineer choose?
YANG modelsOpenConfigNetwork automationMultivendor management - Question #64WAN for Enterprise Networks
What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)
SD-WAN ArchitectureDirect Internet AccessCloud ConnectivityNetwork Performance - Question #65Advanced Enterprise Campus Networks
An engineer is designing an enterprise campus network. The LAN infrastructure consists of switches from multiple vendors, and Spanning Tree must be used as a Layer 2 loop preventio...
MSTPSpanning TreeVLAN GroupingLayer 2 Loop Prevention - Question #66Advanced Addressing and Routing Solutions
What are three key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network? (Choose three.)
EIGRPStub RoutingHub and SpokeRouting Concepts - Question #67WAN for Enterprise Networks
When vEdge router redundancy is designed, which FHRP is supported?
SD-WAN RedundancyvEdge RoutersFHRPVRRP - Question #68Advanced Enterprise Campus Networks
Which feature is required for graceful restart to recover from a processor failure?
Graceful RestartStateful SwitchoverHigh AvailabilityControl Plane Redundancy - Question #69Advanced Addressing and Routing Solutions
Which method will filter routes between EIGRP neighbors within the same autonomous system?
EIGRPRoute FilteringDistribute-list - Question #70Automation
An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to monitor the device state. Which solution limits impact on the...
Streaming TelemetryOn-change SubscriptionDevice MonitoringNetwork Automation - Question #71WAN for Enterprise Networks
What two features are benefits of using GRE tunnels with IPsec over using an IPsec tunnel alone in building-to-building site-to-site VPNs? (Choose two.)
GRE over IPsecSite-to-Site VPNDynamic RoutingEncapsulation - Question #72Advanced Addressing and Routing Solutions
Which OSPF area prevent LSA type 4, LSA type 5? (Choose two)
OSPFLSA TypesArea TypesRouting Protocols - Question #73WAN for Enterprise Networks
What is one function of the vSmart controller in an SD-WAN deployment?
SD-WANvSmart controllerControl PlaneWAN Architecture - Question #74WAN for Enterprise Networks
Which design consideration must be made when dual vEdge routers are deployed at a branch site?
SD-WAN DesignvEdge RoutersTraffic SymmetryDPI - Question #75WAN for Enterprise Networks
When IPsec VPNs are designed, what is a unique requirement if support for IP Multicast is required?
IPsec VPNMulticastGRE over IPsecVTI - Question #76Advanced Enterprise Campus Networks
How do endpoints inside an SD-Access network reach resources outside the fabric?
SD-AccessFabric BorderVRFExternal Connectivity - Question #77Advanced Addressing and Routing Solutions
Which three pieces of information are carried on OSPF type 3 LSAs? (Choose three)
OSPFLSA typesRouting protocolsInter-area routing - Question #78WAN for Enterprise Networks
Which two statements about DMVPN with NHRP are true? (Choose two)
DMVPNNHRPWAN VPNVPN Tunnels - Question #79Advanced Addressing and Routing Solutions
In a simple MPLS L3VPN, which two tasks are performed by the PE router? (Choose two.)
MPLS L3VPNPE Router FunctionsVPNv4/VPNv6 RoutingMP-BGP Labels - Question #80Advanced Addressing and Routing Solutions
Refer to the exhibit. Which action would make the router the active VRRP router?
VRRPFirst Hop Redundancy ProtocolsHigh AvailabilityInterface Tracking - Question #81Advanced Enterprise Campus Networks
Which design principle involves redundancy through hardware, software, and connectivity?
High AvailabilityRedundancyNetwork Design PrinciplesFault Tolerance - Question #82Network Services
NAT-PT translates between what address types?
NAT-PTIPv4IPv6Address Translation - Question #83Advanced Addressing and Routing Solutions
By default, if IS-IS is enabled on all routers, and this is an IPv6 network, what path is taken?
IS-ISIPv6 RoutingPath SelectionDefault Routing Behavior - Question #84Advanced Addressing and Routing Solutions
How many host addresses are available with a Class B network with the default mask?
IPv4 AddressingClassful AddressingSubnet MaskHost Calculation - Question #85Advanced Addressing and Routing Solutions
A packet sent to a multicast address reaches what destinations?
MulticastIP MulticastNetwork AddressingCommunication Types - Question #86Advanced Addressing and Routing Solutions
What does a hierarchical EIGRP design help with? (Choose two.)
EIGRPHierarchical RoutingRoute SummarizationFaster Convergence - Question #87Network Services
During the integration of ISE and DNA Center, which of the following are used to establish trust through ISE?
ISE integrationDNA CenterpxGRIDNetwork Trust - Question #88Advanced Addressing and Routing Solutions
In IS-IS networks, the backup designated router (BDR) forms adjacencies to what router or routers?
IS-ISDesignated IS (DIS)AdjacenciesRouting Protocol Concepts - Question #89WAN for Enterprise Networks
You need to connect sites that are 8 kilometers apart by using fiber. Which media do you recommend?
10 Gigabit EthernetFiber OpticsEthernet StandardsNetwork Media Selection - Question #90WAN for Enterprise Networks
The customization of routing decisions is an example of which policy type?
SD-WAN Control PolicyCentralized PolicyRouting CustomizationControl Plane - Question #91Automation
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
Model-Driven TelemetryPeriodic UpdatesNetwork MonitoringData Collection - Question #92Advanced Addressing and Routing Solutions
An architect is designing a multicast solution for a network that contains over 100 routers. The architect plans to create several multicast domains and balance the PIM-SM traffic...
MulticastPIM-SMMSDPInter-domain Multicast - Question #93Advanced Enterprise Campus Networks
An architect is designing a network that will utilize the spanning tree protocol to ensure a loop- free topology. The network will support an engineering environment where it is ne...
Spanning Tree ProtocolSTP SecurityRoot GuardCampus Network Design - Question #94Advanced Addressing and Routing Solutions
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 lay...
EIGRPBFDNetwork ConvergenceLayer 3 Campus Design - Question #95WAN for Enterprise Networks
An engineer must design a solution to provide backup connectivity between two sites. The engineer plans to use an Internet connection but company policy requires the connection to...
VPNGREIPsecMulticast - Question #96Advanced Addressing and Routing Solutions
An existing network solution is using BFD in echo mode. Several of the network devices are experiencing high CPU utilization which an engineer has determined is related to the BFD...
BFDCPU utilizationPerformance tuningBFD timers - Question #97Advanced Addressing and Routing Solutions
Refer to the exhibit. An engineer is designing a BGP solution for a client that peers with ISP1 for full Internet connectivity and with ISP2 for direct exchange of routes for sever...
BGPDefault RouteInternet ConnectivityEnterprise Edge Routing - Question #98WAN for Enterprise Networks
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 custo...
WAN DesignInternet VPNRedundancyBudget Considerations - Question #99Advanced Addressing and Routing Solutions
Refer to the exhibit. An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate 12,000 devices and the...
IP Addressing DesignCIDRNetwork ScalabilityRoute Summarization - Question #100WAN for Enterprise Networks
An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off...
QoSTraffic ShapingWAN EdgeVoIP Performance - Question #101Advanced Addressing and Routing Solutions
Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a desi...
OSPFRoute LeakingAsymmetric RoutingTraffic Engineering - Question #102Network Services
An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes on predefined business requirements. The design must also utilize the dif...
QoSDiffServDSCPNetwork Design