NPTEL Cloud Computing Assignment 5 Answers (Week 5)
Q1. _______ is a formal contract between a Service Provider (SP) and a Service Consumer (SC).
A. SLA
B. KPI
C. SLO
D. Utility Premium
Answer: Option A.
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Q2. If demand is exponential (D(t)=e¹), any fixed provisioning interval (tp) according to the current demands will fall linearly behind.
a. True
b. False
Answer: Option B.
Q3. A third party application runs in the cloud for 18 hours/day. At the end of one month (30 days), it was found that the cloud suffered outages totalling 5 hours and T hours, on different days over the service period. The cloud guarantees service availability for 98% of the time. What are the value(s) of T among the given options such that the SLA negotiation does not get honored in terms of service availability?
Answer: C. 6 hours
D. 8 hours
Q4. What is/are the correct statement(s) regarding VM load management?
Answer: A. When load increases, new VMs should be scheduled to new nodes.
C. When load increases, use WOL to start up waiting nodes.
D. When load decreases, live migrate VMs to more utilized nodes.
Q5. Statement I: In resource management, resource allocation is the allocation of a service provider’s resources to a customer.
Statement II: Resource mapping is correspondence between resources required by the users and resources available with the provider.
Which of the options is correct?
Answer: B. Statement II is TRUE and Statement I is FALSE
Q6. Which of the following is/are resource allocation approaches in resource management?
Answer: A. Intelligent multi-agent model
C. Energy-aware resource allocation
Q7. Consider that the peak computing demand for an organization is 250 units. The demand as a function of time can be expressed as D(t) = 5t. Baseline (owned) unit cost is 120 and cloud unit cost is 150. The cloud is owned for a period of T time units. Select the values of T for which cloud is cheaper than owning.
Answer: A. 50
Q8. Which of the following is/are objective(s) of Resource Management?
Answer: B. Scalability
C. Improved throughput
Q9. In computing, there is a nonlinear relationship between the number of processing cores used and power consumption
Answer: A. TRUE
Q10. If demand is flat, the penalty will be linear.
Answer: B. FALSE
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