400-007 Practice Exam Questions and Answers

Company XYZ is designing their network using the three-layer hierarchical model. At which layer must the QoS design classify or mark the traffic?

How must the queue sizes be designed to ensure that an application functions correctly?

In the wake of a security compromise incident where the internal networks were breached by an outside attacker at the perimeter of the infrastructure, an enterprise is now evaluating potential measures that can help protect against the same type of incident in the future. What are two design options that can be employed? (Choose two)

Refer to the exhibit.

The network 10.10.0 .0/16 has been redistributed to OSPF processes and the best path to the destination from R1 has been chosen as R1-R2-R3 A failure occurred on the link between R2 and R3 and the path was changed to R1-R4-R5-R3 What happens when the link between R2 and R3 is restored'?

Company XYZneeds advice in redesigning their legacy Layer 2 infrastructure. Which technology should be included in the design to minimize or avoid convergence delays due to STP or FHRP and provide a loop-free topology?

A Tier-3 Service Provider is evolving into a Tier-2 Service Provider due to the amount of Enterprise business it is receiving The network engineers are re-evaluating their IP/MPLS design considerations in order to support duplicate/overlapping IP addressing from their Enterprise customers within each Layer3 VPN. Which concept would need to be reviewed to ensure stability in their network?

Company XYZ is connecting its sites over a private WAN The company is planningon implementing multicast routing on the network. The company has a mixture ofroutersfromdifferentvendorsWhichtechniquecanbeusedinthemulticastroutingdesigntominimize PIMsparsemodeconfigurations?

Refer to the exhibit.

A customer runs OSPF with Area 5 between its aggregation router and an internal router When a network change occurs in the backbone. Area 5 starts having connectivity issues due to the SPF algorithm recalculating an abnormal number of times in Area 5 You are tasked to redesign this network to increase resiliency on the customer network with the caveat that Router B does not support the stub area How can you accomplish this task*?

In the case of outsourced IT services, the RTO is defined within the SL

A.  

You are designing a network running both IPv4 and IPv6 to deploy QoS Which consideration is correct about the QoS for IPv4 and IPv6?