Cisco (300-420-ENSLD) Exam Questions And Answers page 15
Which two functions are provided by the Cisco SD-WAN orchestration plane? (Choose two.)
primary authentication point
NAT traversal facilitation
Zero Touch Provisioning
troubleshooting and monitoring
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Which IOS command do you use to remove Layer 2 configurations and return an interface to Layer 3 mode?
vlan
no vlan
switchport
no switchport
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In which HSRP state is the router a candidate to become the next active router for the group?
Learn
Backup
Listen
Initial
Standby
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What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)
It decreases latency to applications hosted by public cloud service provider.
It decreases latency on Internet circuits.
It increases the speed of delivery of site deployments through zero-touch provisioning.
It increases the total available bandwidth on Internet circuits.
It alleviates network traffic on MPLS circuits.
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Refer to the exhibit. A customer needs to apply QoS to the network management traffic passing through the GigabitEthernet 0/2 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 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.
Mark the traffic to DSCP CS4 and assign it to the SIGNALLING class. Then, prioritize traffic within the class.
Mark the 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.
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Which feature can you enable on a switch to prevent potential bridging loops caused by invalid configurations on PortFast-configured interfaces?
UDLD
Root Guard
BPDU Guard
Loop Guard
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Which load-balancing algorithm does GLBP use by default?
Random load-balancing
Weighted load-balancing
Round-robin load-balancing
Host-dependent load-balancing
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An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes based on predefined business requirements. The design must also utilize the differentiated services code points as the QoS priority descriptor value and support at least 10 levels of classification. Which QoS technology should the engineer include in the design?
RSVP
DiffServ
Best Effort
InterServ
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When a network is designed using IS-IS, which two circuit types are supported? (Choose two.)
nonbroadcast multiaccess
multiaccess
point-to-multipoint
nonbroadcast
point-to-point
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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
use 6to4 and a tunnel to translate the addresses
implement 6PE to resolve hostname resolution
implement NAT44 at the edge of the customer network
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