Q3. Which statement is true concerning the data center distribution (aggregation) layer design?

A. With Layer 3 at the aggregation layer, the physical loops in the topology must still be managed by STP.

B. The boundary between Layer 2 and Layer 3 must reside in the multilayer switches, independent of any other devices.

C. A mix of both Layer 2 and Layer 3 access is the most optimal.

D. In a small data center, the aggregation layer can connect directly to the campus core, exchanging IP routes and MAC address tables.

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Q4. What three primary sources of information are needed to perform a network audit? (Choose three.)

A. existing documentation

B. new documentation

C. existing network management software

D. new network management tools

E. management personnel

F. technical personnel

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Q5. Which IP address can be routed to cross the public Internet?

A. 10.31.1.1

B. 192.168.32.1

C. 172.32.1.1

D. 169.254.32.1

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Q6. GRE has been used to establish a routing-protocol neighbor relationship between two routers, across the public Internet. Which technology can you use to encrypt this communication channel?

A. access lists

B. IPsec

C. CBAC

D. IPS

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Q7. What is the key limitation of using Internet circuits as a backup to a private enterprise WAN?

A. circuit bandwidth

B. prioritization

C. security

D. operational expense

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Q8. When considering the three VoIP design models - single site, centralized multisite, and distributed multisite - which question below would help to eliminate one of the options?

A. Will the switches be required to provide inline power?

B. Will users need to make offsite calls, beyond the enterprise?

C. Will users require applications such as voice mail and interactive voice response?

D. Are there users whose only enterprise access is via a QoS-enabled WAN?

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Q9. You want to gather as much detail as possible during a network audit, to include data time stamping across a large number of interfaces, customized according to interface, with a minimal impact on the network devices themselves. Which tool would you use to meet these requirements?

A. RMON

B. SNMPv3

C. NetFlow

D. Cisco Discovery Protocol

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Q10. What will extend a trust boundary (there is switch interface configuration with separate voice VLAN and data VLAN configured where the phone is connected to, also small diagram showing endpoint (host), IP Phone, Access Switch, Distribution Switch, Core Switch and Data Centre Aggregation switch)?

A. Multiple layers PC

B. IP Phone

C. Access Switch

D. Distribution Switch

E. Core Switch

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Q11. Which Cisco device management feature is most suited to metering network traffic and providing data for billing network usage?

A. BGP

B. Cisco Discovery Protocol

C. QoS

D. RMON

E. NetFlow

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Q12. An engineer wants to ensure that the Spanning Tree topology appears loop free while redundant switches are present. Which Layer 2 technology must be used?

A. VPC

B. PaGP

C. LACP

D. OTV

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