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Gilder’s Law and Technology Advancements Quiz

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Gilder’s Law and Technology Advancements Quiz

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Questions and Answers

What is the purpose of estimating the peak arrival rate?

To calculate the average response time of requests
To identify the highest percentile of the arrival rate distribution (correct)
To determine the maximum capacity of the VM
To measure the variance of inter-arrival times

Which queuing model is mentioned as suitable for modeling web and database servers?

M/M/1
G/M/1
G/G/1 (correct)
M/G/1

What does the variable 'd' represent in the queuing theory equation provided?

The mean response time of requests (correct)
The variance of inter-arrival times
The mean service time of requests
The variance of service times

How can the service time 's' of requests be determined?

From the server logs (B) Signup and view all the answers

What does the variable 'cap' represent in the queuing theory equation?

The request arrival rate that can be serviced by the VM (D) Signup and view all the answers

What does the term 'hotspot' refer to in the context of virtual machine (VM) migration?

A VM with high CPU utilization (C) Signup and view all the answers

What is the purpose of substituting the known values into the queuing theory equation?

To obtain a lower bound on the request arrival rate that can be serviced by the VM (C) Signup and view all the answers

What represents the current capacity of the VM?

The request arrival rate that can be serviced by the VM (cap) (D) Signup and view all the answers

What is the significance of the variance of inter-arrival times ($\sigma_a^2$) and the variance of service times ($\sigma_b^2$) in the queuing theory equation?

They capture the variability in the system, which affects the queuing behavior (B) Signup and view all the answers

What is the purpose of the queuing theory equation provided in the text?

To obtain a lower bound on the request arrival rate that can be serviced by the VM (B) Signup and view all the answers