Cisco 300-420 Practice Test - Questions Answers, Page 11
Question list
List of questions
Related questions
A customer’s environment includes hosts that support IPv6-only. Several of these hosts must communicate with a public web server that has only IPv4 domain name resolution. Which solution should the customer use in this environment?
utilize NAT64 to translate the addresses
Implement NAT44 at the edge of the customer network
use 6to4 and a tunnel to translate the addresses
implement 6PE to resolve hostname resolution
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.)
Implement Enhanced Object Tracking on router R1
use a floating static route
Implement IP SLA on router R1
Implement PBR on router R1
use IP source routing
An architect must address sustained congestion on the access and distribution uplink of network.
QoS has already been implemented and optimized, but it is no longer effective in ensuring optimal network performance. Which two solutions should the architect use to improver network performance? (Choose two)
Reconfigure QoS based on the IntServ model
Utilize random early detection to manage queues
Implement higher-speed uplink interfaces
Bundle additional uplinks into logical EtherChannels
Configure selective packet discard to drop noncritical network traffic.
Refer to the 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?
Utilize 8PDU filter on SW3.
Utilize loop guard on SW2
Utilize BPDU guard on SW1
Utilize root guard on SW1.
Refer to the 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?
Increase the hello timers on both HSRP devices
Use the preempt delay feature on the primary HSRP device.
Use the preempt delay feature on the backup HSRP device
Configure a higher mac-refresh interval on both HSRP devices
Refer to the 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?
split-horizon
summarization
down bit
route tags
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
A customer requests a VPN solution to connect multiple sites with the company headquarters. All the sites use the same IP subnet. The engineer plans to use VPLS. Which solutions must the engineer include in the design?
802.1Q connectivity on the LAN side of the CE
route exchange with the service provider
address translation to hide overlapping subnets
different VLANs on each site
What is the purpose of a Cisco SD-Access underlay network?
to abstract IP-based connectivity from physical connectivity
to emulate LAN segments to transport Layer 2 frames over a Layer 3 network
to establish physical connectivity between switches and routers
to provide virtualization by encapsulating network traffic over IP tunnels
Refer to the 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?
Set the BGP Internet community for all prefixes.
Implement the NOPEER community.
Use the BGP No-Advertise community for the prefixes to exclude.
Attach the No-Export community with the prefixes to exclude
Question