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1. 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.)
10 Gigabit Ethernet
quality of service (QoS)
hot-swappable hardware
2. Refer to the exhibit. Beginning with HR servers and workstations, a network engineer is designing a new security structure for the network. Which set of policies adheres to the hierarchical network model design principles?
Configure port security options on S1. Use Layer 3 access control features on D1 and D2 to limit access to the HR servers to just the HR subnet.
3. Which layer of the OSI model does an access layer LAN switch use to make a forwarding decision?
Layer 2
4. What is the likely impact of moving a conventional company architecture to a completely converged network?
A shared infrastructure is created resulting in a single network to manage.
5. Configuring communication between devices on different VLANs requires the use of which layer of the OSI model?
Layer 3
6. 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?
core layer
7. 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?
redundancy
8. 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?
access
9. At which heirarchical layer are switches normally not required to process all ports at wire speed?
access layer
10. Which two characteristics are associated with enterprise level switches? (Choose two.)
high forwarding rate
support link aggregation
11. For organizations that are implementing a voice over IP solution, what functionality should be enabled at all three layers of the hierarchical network?
quality of service
12. 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)?
distribution
13. Link aggregation should be implemented at which layer of the hierarchical network?
access, distribution, and core
14. Which feature supports higher throughput in switched networks by combining multiple switch ports?
link aggregation
15. What statement best describes a modular switch?
flexible characteristics
16. Which two features are supported at all three levels of the Cisco three-layer hierarchical model? (Choose two.)
Quality of Service
link aggregation
17. A network technician is asked to examine an existing switched network. Following this examination, the technician makes recommendations for adding new switches where needed 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.)
traffic flow analysis
expected future growth
18. Which three features are commonly supported at the distribution layer of the Cisco hierarchical network model? (Choose three.)
security policies
quality of service
Layer 3 functionality
19. 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 nine switches to be interconnected via the use of a fully redundant backplane.
20. Refer to the exhibit. What characteristic of hierarchical network designs is exhibited by having SW3 connected to both SW1 and Sw2?
redundancy
Posted in: CCNA3 Chapter 1
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great thx alot
ok man!
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