Design basic enterprise campus networks

Questions derived from the 640-863 – Designing for Cisco Internetwork Solutions Exam Cisco Self-Test Software Practice Test.

 

Objective: Design basic enterprise campus networks
SubObjective: Design the enterprise campus network

 

Item Number: 640-863.3.2.2
Multiple Answer, Multiple Choice

 

Which statements are true regarding the enterprise campus model? (Choose three.)

 

 

  1. Campus infrastructure consists of the campus core, campus-distribution and campus-access layers.
  2. Campus infrastructure consists of the campus core, building-distribution and building-access layers.
  3. Campus core provides a high-speed switched backbone to the server farm, between buildings and to the enterprise distribution.
  4. Campus core layer performs access control, quality of service (QoS), route redundancy and load balancing.
  5. Building access switches provide VLAN access, broadcast suppression and spanning tree.
  6. Building-distribution layer provides VLAN access, broadcast suppression and spanning tree.

 

Answer:
B. Campus infrastructure consists of the campus core, building-distribution and building-access layers.
C. Campus core provides a high-speed switched backbone to the server farm, between buildings and to the enterprise distribution.
E. Building access switches provide VLAN access, broadcast suppression and spanning tree.

 

Tutorial:
The Cisco enterprise campus model provides a detailed design for the campus for a converged, intelligent infrastructure to access IT resources across enterprise locations. The enterprise campus model is one of the functional areas of the enterprise composite network model.
There are the four structural elements in the enterprise campus model:

 

 

  • Campus infrastructure: Consists of the campus core, building-distribution, and building-access layers.
  • Campus core: Provides a high-speed switched backbone to the server farm, between buildings, and to the enterprise distribution.
  • Building access switches: Provide VLAN access, broadcast suppression, and spanning tree.
  • Building-distribution layer: Performs access control, QoS, route redundancy, and load balancing.

 

The option stating that the campus infrastructure consists of the campus core, campus-distribution and campus-access layers is incorrect. Campus infrastructure consists of the campus core, building-distribution and building-access layers.

 

The option stating that the campus core layer is used to perform access control, QoS, route redundancy and load balancing is incorrect. This functionality is performed by the building-distribution layer.

 

The option stating that the building-distribution layer provides VLAN access, broadcast suppression and spanning tree is incorrect. The building access switches provide VLAN access, broadcast suppression and spanning tree.

 

Reference:
CCDA Official Exam Certification Guide, Chapter 2: Network Structure Models, Enterprise Campus Module, pp. 44-45.

 

http://cisco.com/application/pdf/en/us/guest/netsol/ns431/c654/cdccont_0900aecd800d8124.pdf

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