On-Demand Resources and Value of Common Infrastructure Quiz
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Questions and Answers

Which metric refers to the ability of a resource to grow without limits, although with certain maximum boundaries defined?

  • Elasticity (correct)
  • Reliability
  • Linearity
  • Durability
  • If a service provider is handling a high percentage of requests without human interaction, which metric is being assessed?

  • Customer service response times
  • Agility
  • Automation (correct)
  • Service-level violation rate
  • Which aspect of cloud monitoring evaluates the time period between detection of a service problem and its resolution?

  • Transaction time
  • Agility
  • Resolution time (correct)
  • Load balancing
  • In cloud computing, which metric assesses how quickly the provider responds as the consumer's resource load scales up and down?

    <p>Agility</p> Signup and view all the answers

    What does the Service-level violation rate metric measure in cloud services?

    <p>Service-level violation rate</p> Signup and view all the answers

    If a metric is concerned with how often the service is available, which aspect of cloud properties is being evaluated?

    <p>Reliability</p> Signup and view all the answers

    What is the main benefit of on-Demand Resources?

    <p>Reduced overhead costs</p> Signup and view all the answers

    Which of the following is NOT a value derived from Common Infrastructure according to the text?

    <p>Higher variance in demand</p> Signup and view all the answers

    What does the coefficient of variation (CV) measure?

    <p>The ratio of standard deviation to mean</p> Signup and view all the answers

    What can help a facility with fixed assets achieve higher utilization?

    <p>Reducing the coefficient of variation</p> Signup and view all the answers

    What happens to the coefficient of variation if demand is multiplexed from multiple sources?

    <p>It decreases</p> Signup and view all the answers

    What is a key factor in reducing the unserved demand as per the text?

    <p>Multiplexing demand</p> Signup and view all the answers

    What happens to the Coefficient of Variance (Cv) when n independent demands are added?

    <p>It decreases by $1/n$</p> Signup and view all the answers

    What is a common infrastructure challenge in the real world for cloud providers?

    <p>Correlated demands</p> Signup and view all the answers

    What is the impact of aggregating 100 workloads in terms of resource penalty?

    <p>Resource penalty decreases to 10%</p> Signup and view all the answers

    What is the statistical impact of perfectly correlated demands on aggregated demand?

    <p>Mean and standard deviation both increase</p> Signup and view all the answers

    What is a key benefit of location independence in cloud computing?

    <p>Applications, services, and content come to us</p> Signup and view all the answers

    What is a factor that can contribute to economies of scale for cloud providers?

    <p>Using COTS computers and components</p> Signup and view all the answers

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