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Question No. 1

An engineer is designing an infrastructure to use a 40 Gigabit link as the primary uplink and a 10 Gigabit uplink

as the alternate path. Which routing protocol allows for unequal cost load balancing?

Answer: C

Question No. 2

An engineer must deploy a corporate QoS design in the shortest time possible. Which model accomplishes this goal?

Answer: D

Question No. 3

How many multicast groups can one multicast MAC address represent?

Answer: D

Question No. 4

Which option is correct when using Virtual Switching System?

Answer: C

Definitely C — again Chapter 1 of CiscoPress CCDP fourth edition Distribution-to Distribution Interconnect with

the Virtual Switch Model

The virtual switch system operates differently at different planes. From a control plane point of view, the VSS

peers (switches) operate in active standby redundancy mode. The switch in active redundancy mode will

maintain the single configuration file for the VSS and sync it to the standby switch, and only the console

interface on the active switch is accessible

VSS1440 (in the book) A VSS1440 refers to the VSS formed by two Cisco Catalyst 6500 Series Switches with


Virtual Switching Supervisor 720-10GE. In a VSS, the data plane and switch fabric with capacity of 720 Gbps of

supervisor engine in each chassis are active at the same time on both chassis, combining for an active 1400-

Gbps switching capacity per VSS. Only one of the virtual switch members has the active control plane. Both

chassis are kept in sync with the inter-chassis Stateful Switchover (SSO) mechanism along with Nonstop

Forwarding (NSF) to provide nonstop communication even in the event of failure of one of the member

supervisor engines or chassis.


In my opinion C & D are correct.

Question No. 5

What are the most important scaling factors that need to be considered while selecting VPN head end device? (Choose two) (E)

Answer: B, D

Question No. 6

When 2 distribution switches are configured for VSS, what needs to be done to extend back plane connectivity?

Answer: B

Question No. 7

An engineer is creating an IPv6 migration strategy with a transaction mechanism to provide the best performance possible. It should use native forwarding in hardware (if supported by the platform) and should add any encapsulation overhead. Which mechanism meets this requirement?

Answer: C

Question No. 8

Which SDN controller allows for applications iWAN control, Plug and Play,

and Enterprise Service Automation?

Answer: A

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