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  1. #1
    dafasad is offline Member
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    Default OCMJEA JEE6 P1 tutorial question 10: improving availability

    10: You have been tasked with improving the availability of an existing three tier application.
    What is your first stop in evaluating what changes should be made to the architecture to achieve
    the goal?

    A. Monitor network traffic between tiers.
    B. Separate presentation from business logic.
    C. Identify and document all single points of failure.
    D. Cluster the presentation tier without session replication.

  2. #2
    ninja73 is offline Member
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    Default Re: OCMJEA JEE6 P1 tutorial question 10: improving availability

    It cannot be B as it is already a 3-tier application.
    It cannot be C as single point failures are for 1-tier architecture.
    It cannot be A as monitoring and improving network traffic will not improve availability.
    That leaves D. Clustering improves availability.

    Anyone disputes the explanation? Please explain..

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