* number of required core connections
* number of hubs that are needed in the access layer to increase performance* forwarding rate
* traffic flow analysis (True)
* expected future growth (True)

3. Which hierarchical design model layer controls the flow of network traffic using policies and delineates broadcast domains by performing routing functions between virtual LANs (VLANs)?

* application 
* network
* core
* access
* distribution (True)

4. A network administrator is selecting a switch that will operate at the network core. Which three features should the switch support for optimum network performance and reliability? (Choose three.)
* port security
* security policies

* Power over Ethernet (PoE)
* 10 Gigabit Ethernet (True)
* quality of service (QoS)  (True)
* hot-swappable hardware (True)

5. Which three features are commonly supported at the distribution layer of the Cisco hierarchical network model? (Choose three.)

* security policies (True)
* quality of service  (True)
* Layer 3 functionality (True)
* end user access to network

* Power over Ethernet
* switch port security

6. What is the likely impact of moving a conventional company architecture to a completely converged network?
* Local analog phone service can be completely outsourced to cost-effective providers.
* The Ethernet VLAN structure is less complex.
* A shared infrastructure is created resulting in a single network to manage. (True)
* QoS issues are greatly reduced.
* There is less bandwidth competition between voice and video streams.

7. Which two features are supported at all three levels of the Cisco three-layer hierarchical model? (Choose two.)
* Power over Ethernet
* load balancing across redundant trunk links
* redundant components
* Quality of Service  (True)
* link aggregation (True)

8. Which two characteristics are associated with enterprise level switches? (Choose two.)
* high forwarding rate (True)
* high latency level

* low port density
* support link aggregation (True)
* predefined number of ports

9. Link aggregation should be implemented at which layer of the hierarchical network?
* core only
* distribution and core
* access and distribution
* access, distribution, and core (True)

10. For organizations that are implementing a voice over IP solution, what functionality should be enabled at all three layers of the hierarchical network?
* Power over Ethernet

* switch port security
* inter-VLAN routing
* quality of service (True)

11. Which layer of the hierarchical design model provides a means of connecting devices to the network and controlling which devices are allowed to communicate on the network?
* application
* access (True)
* distribution
* network
* core

12. Which layer of the OSI model does an access layer LAN switch use to make a forwarding decision?

* Layer 1

* Layer 3
* Layer 4
* Layer 2 (True)

13. At which heirarchical layer are switches normally not required to process all ports at wire speed?
* access layer (True)
* entry layer

* core layer
* distribution layer

14. Refer to the exhibit. What characteristic of hierarchical network designs is exhibited by having SW3 connected to both SW1 and Sw2?
* scalability
* security
* redundancy (True)
* maintainability

15. Which layer of the hierarchical network design model is refered to as the high-speed backbone of the internetwork, where high availability and redundancy are critical?

* data-link layer
* distribution layer
* network layer
* physical layer
* access layer
* core layer (True)

16. What statement best describes a modular switch?
* a slim-line chassis
* allows interconnection of switches on redundant backplane
* defined physical characteristics
* flexible characteristics (True)

17. A technician is attempting to explain Cisco StackWise technology to a client that is setting up three stackable switches. Which explanation accurately describes StackWise technology?
* StackWise technology allows up to eight ports to be bound together to increase available bandwidth.
* StackWise technology allows the switch to deliver power to end devices by using existing Ethernet cabling.
* StackWise technology allows the switch capabilities and ports to be expanded by the addition of line cards.
* StackWise technology allows up to nine switches to be interconnected via the use of a fully redundant backplane. (True)

18. Which hierarchical design characteristic would be recommended at both the core and distribution layers to protect the network in the case of a route failure?
* PoE

* aggregation
* access lists
* redundancy (True)

19. Which feature supports higher throughput in switched networks by combining multiple switch ports?
* link aggregation (True)
* network diameter

* convergence
* redundant links

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