400-007 Cisco Exam Questions and Free Practice Test

Question 7

Company XYZ is running OSPF in their network. They have merged with another company that is running EIGRP as the routing protocol. Company XYZ now needs the two domains to talk to each other with redundancy, while maintaining a loop free environment.
The solution must scale when new networks are added into the network in the near future.
Which technology can be used to meet these requirements?

A. multipoint route-redistribution with route filtering using ACLs

B. DUMP multipoint route-redistribution with route filtering using route tags

C. DUMPS single point route-redistribution with route filtering using route tags

D. DUMPS single point route-redistribution with route filtering using ACLs

Correct Answer:B

Question 8

Refer to the exhibit.
400-007 dumps exhibit
The enterprise customer wants to stream one-way video from their head office to eight branch
offices using multicast. Their current service provider provides a Layer3 VPN solution and manages
the CE routers, but they do not currently support multicast. Which solution quickly allows this
multicast traffic to go through while allowing for future scalability?

A. Enable a GRE tunnel between nodes CE1 and CE2

B. Enable a GRE tunnel between nodes C2 and C4

C. Enable a GRE tunnel between nodes C1 and C4

D. Implement hub and spoke MPLS VPN over DMVPN (also known as 2547o DMVPN) between CE1and CE2

E. The service provider must provide a Draft Rosen solution to enable a GRE tunnel between nodesPE1 and PE2

Correct Answer:B

Question 9

Company XYZ runs OSPF in their network. A design engineer decides to implement hot-potato routing architecture.
How can this implementation be achieved?

A. Enable iBGP and apply prepend to ensure all prefixes will have the same length of the AS pathattribute value.

B. Redistribute the external prefixes onto OSPF and ensure the total metric calculation includes onlythe ext value and the value is the same in all ASBRs.

C. Enable OSPF load-balancing over unequal cost path.

D. Redistribute the external prefixes onto OSPF and ensure that the total metric calculation includesexternal internal values.

Correct Answer:D

Question 10

What are two key design principles when using a hierarchical core-distribution-access network model? (Choose two )

A. A hierarchical network design model aids fault isolation

B. The core layer is designed first, followed by the distribution layer and then the access layer

C. The core layer provides server access in a small campus.

D. A hierarchical network design facilitates changes

E. The core layer controls access to resources for security

Correct Answer:AD

Question 11

SDWAN networks capitalize the usage of broadband Internet links over traditional MPLS links to offer more cost benefits to enterprise customers. However, due to the insecure nature of the public Internet, it is mandatory to use encryption of traffic between any two SDWAN edge devices installed behind NAT gateways.
Which overlay method can provide optimal transport over unreliable underlay networks that are behind NAT gateways?

A. TLS

B. DTLS

C. IPsec

D. GRE

Correct Answer:C

Question 12

Which option is a fate-sharing characteristic in regards to network design?

A. A failure of a single element causes the entire service to fail

B. It protects the network against failures in the distribution layer

C. It acts as a stateful forwarding device

D. It provides data sequencing and acknowledgment mechanisms

Correct Answer:A

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