Ccna3

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http://elmaestrodelared.blogspot.com CCNA Exploration 4.0: (III) LAN Switching and Wireless Examen1
1. A network technician is asked to examine an existing switched network. Following this examination, the technician makes recommendations for adding new switches whereneeded and replacing existing equipment that hampers performance. The technician is given a budget and asked to proceed. Which two pieces of information would be helpful in determining necessary port density for new switches? (Choose two.) forwarding rate traffic flow analysis expected future growth number of required core connections number of hubs that are needed in the access layer to increaseperformance 2. Configuring communication between devices on different VLANs requires the use of which layer of the OSI model? Layer 1 Layer 3 Layer 4 Layer 5 3. 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. Ashared infrastructure is created resulting in a single network to manage. QoS issues are greatly reduced. There is less bandwidth competition between voice and video streams 4. 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 access distribution networkcore 5. 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.)

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port security securitypolicies 10 Gigabit Ethernet quality of service (QoS) hot-swappable hardware Power over Ethernet (PoE) 6. Which three features are commonly supported at the distribution layer of the Cisco hierarchical network model? (Choose three.) security policies Power over Ethernet switch port security quality of service Layer 3 functionality end user access to network 7. Which two features are supported atall 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 link aggregation 8. Which two characteristics are associated with enterprise level switches? (Choose two.) low port density high forwarding rate high latency level support link aggregation 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 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 quality of service switch port security inter-VLANrouting 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

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access distribution network core 12. Atwhich heirarchical layer are switches normally not required to process all ports at wire speed? core layer distribution layer access layer entry layer 13. Which layer of the OSI model does an access layer LAN switch use to make a forwarding decision? Layer 1 Layer 2 Layer 3 Layer 4 14. Refer to the exhibit. What characteristic of hierarchical network designs is exhibited by having SW3 connected...