Cisco 300-420 Quiz 1 Topic 8 Questions 1-5

Question: 1

q1_300-420

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?

AUtilize 8PDU filter on SW3.

BUtilize loop guard on SW2

CUtilize BPDU guard on SW1

DUtilize root guard on SW1.

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Question: 2

q2_300-420

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?

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

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Question: 3

q3_300-420

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?

Asplit-horizon

Bsummarization

Cdown bit

Droute tags

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Question: 4

q4_300-420

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?

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

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Question: 5

q5_300-420

Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

Aa new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs

Ba new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs

Ca new OSPF area for R3 and R4 connections, with R3 and R4 as ABRs

Da new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as
ABRs

Ea new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs

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Cisco 300-420 Quiz:1 Topic:8 Questions:1-5