1. Which layer of the three-layer design model controls access to services?

    2. A. Workgroup
    B. Access
    C. Core
    D. Distribution

  2. In which layer of the three-layer design model is policy-based connectivity implemented?

    3. A. Core
    B. Access
    C. Distribution
    D. Workgroup

  3. In which layer of the three-layer design model would broadcast traffic be isolated?

    4. A. Workgroup
    B. Access
    C. Core
    D. Distribution

  4. In a two-layer design what is used to interconnect separate sites?

    5. A. WAN link
    B. LAN link
    C. UTP
    D. STP cable

  5. XYZ Company is considering online video training applications. Which of the following issues is most important when deploying this application on the network?

    6. A. Equipment location
    B. Business critical traffic
    C. WAN service selection
    D. Media selection

  6. In which layer of the three-layer design model can LANs or groups of LANs be found?

    7. A. Workgroup
    B. Distribution
    C. Access
    D. Core

  7. Which is a new network requirement that is putting a burden on traditional shared-media?

    8. A. Network usage has increased
    B. Network costs continue to increase
    C. Growth of corporate intranets and extranets
    D. All of the above

  8. Which isNOT part of the three-layer model?

    9. A. Core
    B. Workgroups
    C. Distribution
    D. Access

  9. Which of the following statements describes sensitivity testing?

    10. A. Breaking stable links and observing the results
    B. Breaking unstable links and observing the results
    C. Generating additional network traffic and observing the results
    D. Eliminating workstations and observing the results

  10. Which layer of the three-layer design model is responsible for providing a fast path between remote sites?

    11. A. Core
    B. Distribution
    C. Workgroup
    D. Access

  11. Which of the following is an advantage of using the OSI model in WAN design?

    12. A. Allows the network to be designed in layers
    B. Uses layers to simplify the task required for internetworking
    C. Design elements can be replicated as the network grows
    D. All of the above

  12. Workgroup servers should be placed in which layer of the three-layer design model?

    13. A. Core
    B. Distribution
    C. Access
    D. Workgroup

  13. Which layer of the three-layer design model is responsible for providing redundant paths?

    14. A. Distribution
    B. Core
    C. Workgroup
    D. Access

  14. Which of the following has no effect on availability?

    15. A. User's training level
    B. Throughput
    C. Response time
    D. Access to resources

  15. Which of the following is an alternative to a dedicated link?

    16. A. DS3
    B. Leased line
    C. ISDN
    D. T1

  16. In which layer of the three-layer design model is the campus backbone found?

    17. A. Access
    B. Workgroup
    C. Core
    D. Distribution

  17. Which is the most expensive and time consuming method of obtaining user utilization information?

    18. A. Creating focus groups
    B. Building a network baseline
    C. Administering a human factors test
    D. Conducting a performance analysis of the network

  18. What causes data traffic to flow up a three-layer hierarchical structure?

    19. A. Client suggestions
    B. User demands
    C. Routing protocols
    D. Source/destination addressing

  19. What type of network design is the easiest to implement?

    20. A. Hierarchical
    B. Mesh
    C. Hybrid
    D. Linear

  20. What type of network design is the most scalable?

    21. A. Hierarchical
    B. Mesh
    C. Flat
    D. Linear

  21. In a hierarchical design, what layer of the OSI model can be used to control data traffic patterns?

    22. A. Data link
    B. Network
    C. Physical
    D. Transport

  22. As a network administrator you are in charge of analyzing network requirements. Which issues would you need to include in the anaylsis?

    23. A. User applications, switch capacity, size of collision domains
    B. Business requirements, technical requirements, performance requirements
    C. User applications, technical requirements, server capacity
    D. Performance requirements, switch capacity, operating systems in use

  23. What is each site called in a one-layer network design?

    24. A. Collision domain
    B. Separate class A subnet
    C. An enterprise
    D. Broadcast domain

  24. WAN traffic is expected to increase in the next five years by what percentage?

    25. A. 3%
    B. 30%
    C. 300%
    D. 3000%
  25. In which layer of the three-layer design model would users with common interests be grouped?

    26. A. Access
    B. Workgroup
    C. Core
    D. Distribution