400-007 Free Practice Test

Refer to the 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?

1. A. Enable a GRE tunnel between nodes CE1 and CE2
2. B. Enable a GRE tunnel between nodes C2 and C4
3. C. Enable a GRE tunnel between nodes C1 and C4
4. D. Implement hub and spoke MPLS VPN over DMVPN (also known as 2547o DMVPN) between CE1 and CE2
5. E. The service provider must provide a Draft Rosen solution to enable a GRE tunnel between nodes PE1 and PE2

Correct Answer: B

Company XYZ is designing the IS-IS deployment strategy for their multiarea IS-IS domain. They want IS-IS neighbour relationships to be minimized on each network segment and want to optimize the size of the IS-IS LSDB on each router. Which can design can be used to meet these requirements?

1. A. Design all routers as Level 2 router
2. B. Set the links between the routers as Level 1 with the area
3. C. Design the network so that the routers connecting to other areas are Level 2 routers and internal routers are Level 1
4. D. Design the network so that all routers are Level 1 routers
5. E. Design the network so that the routers connecting to other areas are Level 1/Level 2 routers and internal routers are Level 1

Correct Answer: D

Refer to the table.

A customer investigates connectivity options for a DCI between two production data centers to aid a
large-scale migration project. The solution must provide a single 10G connection between locations and be able to run its own varying QoS profiles without service provider interaction based on the migration stages. All connectivity methods are at 10 Gbps. Which transport technology costs the least if the connectivity is required for just one year?

1. A. MPLS wires only
2. B. CWDM over dark fiber
3. C. DWDM over dark fiber
4. D. Metro Ethernet

Correct Answer: A

Agile and Waterfall are two popular methods for organizing projects. What describes any Agile network design development process?

1. A. working design over comprehensive documentation
2. B. contract negotiation over customer collaboration
3. C. following a plan over responding to change
4. D. processes and tools over individuals and interactions over time

Correct Answer: A

Software-defined networking architecture is used for cost-effective, adaptable, and easily manageable applications. In which two software-defined networks is SDN commonly used? (Choose two.)

1. A. wide area network
2. B. mobile network
3. C. metro network
4. D. application network
5. E. control network

Correct Answer: AE