Under what circumstances would the system have to resort to a linear search when implementing a Selection operation?
What will be an ideal response?
(1) Unordered file, with no indexes.
(2) Composite predicate where one of the terms contains an OR condition and the term
requires a linear search.
(3) Composite predicate where no attribute can be used for efficient retrieval.
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Declaring a method final means:
a. it will prepare the object for garbage collection. b. it cannot be accessed from outside its class. c. it cannot be overloaded. d. it cannot be overridden.
2. A cloud provider is deploying a new SaaS product comprised of a cloud service. As part of the deployment, the cloud provider wants to publish a service level agreement (SLA) that provides an availability rating based on its estimated availability over the next 12 months. First, the cloud provider estimates that, based on historical data of the cloud environment, there is a 25% chance that the physical server hosting the cloud service will crash and that such a crash would 2 days before the cloud service could be restored. It is further estimated that, over the course of a 12 month period, there will be various attacks on the cloud service, resulting in a total of 24 hours of downtime. Based on these estimates, what is the availability rating of the cloud service that should be published
What will be an ideal response?
Consider the eigenvectors of the normalized Laplacian L norm as graph Fourier basis. Denote the eigenvalues as ? ` and corresponding eigenvector as u `. Answer the following:
(a)
(b)
(c)
It is good practice to set aside time to perform firewall maintenance ____.
A. daily B. weekly C. monthly D. yearly