Ccna

CCNA 3 Chapter 1 2011 V4.0 Answers 100%
1. Which layer of the hierarchical network design model is refered to as the highspeed backbone of the internetwork, where high availability and redundancyare critical? access layer core layer data-link layer distribution layer network layer physical layer 2. Which two characteristics are associated with enterprise level switches? (Choose two.) low portdensity high forwarding rate high latency level support link aggregation predefined number of ports 3. Which feature supports higher throughput in switched networks by combining multiple switch ports?convergence redundant links link aggregation network diameter 4. Which hierarchical design model layer controls the flow of network traffic using policies and delineates broadcast domains byperforming routing functions between virtual LANs (VLANs)? application access distribution network core 5. What is the likely impact of moving a conventional company architecture to a completely convergednetwork? 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 networkto manage. QoS issues are greatly reduced. There is less bandwidth competition between voice and video streams. 6.

Refer to the exhibit. Beginning with HR servers and workstations, a networkengineer is designing a new security structure for the network. Which set of policies adheres to the hierarchical network model design principles? Implement Layer 3 switching on S1 to reduce the packetprocessing load on D1 and D2. Install all security processing on S1 to reduce network traffic load. Configure port security options on S1. Use Layer 3 access control features on D1 and D2 to limit accessto the HR servers to just the HR subnet. Move all HR assets out of the data center and connect them to S1. Use Layer 3 security functions on S1 to deny all traffic into and out of S1. Perform all...