VCAP6-DCV Design: Definitions

VCAP6-DCV Design

This post will attempt to document all of the important terminology required to understand in the VCAP6-DCV Design certification exam.  This is going to assume you have some general IT knowledge. This isn’t meant in anyway to be a complete dictionary.  Because ain’t nobody got time for that.

  • Design Components:
    • Vision – Whole reason for the project.
    • Scope – Quantitative statement of what is/isn’t in a project.
    • Requirements – Attribute that must be achieved.
      • Functional – A definable and detailed project item that describes the purpose of a component. (ex. PCI, SOX compliance)
      • Non-Functional – Describes the quality of a solution or service. (ex. application should be available 24/7)
    • Constraints – Attribute that may limit design choice. Technical or business driven.
    • Assumptions – Attribute that has been decided to be true but never tested or proved.
    • Risks – Attribute that could prevent or change the completion of the project considerably
  • MTBF – Mean Time Between Failure – Time between component failures.
  • MTTR – Mean Time to Recovery – Time to recover after a component failure.
  • Business Continuity – Plan that addresses resilience, recovery, & contingency.
  • Fault Tolerance – If a failure happens & operations continue to function.
  • High Availability – If a failure happens & operations recover quickly.
  • Recovery – If a failure happens, how to recover as quickly as possible.
  • Disaster Recovery – A subset of Business Continuity to address a disaster typically focused on critical business functions.
  • Current State Analysis – Project starting point.
  • Gap State Analysis – Review of items or tasks required to progress to the projects vision.
  • RPO – Recovery Point Objective – Point in time which a service/system needs to be restored too following a failure.
  • RTO – Recovery Time Objective – Amount of time it takes to restore a service after a failure.

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