A virtual machine ________saves a point-in-time state of the virtual machine
a. Frame
b. Image
c. Checkpoint
d. Copy
C. Checkpoints save not only the state of the hard disk files, but also the state of the running machine and hardware configuration by creating a copy of the machine's memory at the time the checkpoint is taken.
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Explain the difference between each of the transaction models with respect to abort, commit, rollback, and isolation in the following cases:
a. A sequence of savepoints in a transaction and a chained transaction b. A sequence of savepoints in a transaction and a nested transaction consisting of subtransactions that are executed serially c. A sequence of savepoints in a transaction and a sequence of transactions linked by a recoverable queue d. A sequence of chained transactions and a nested transaction consisting of subtransactions that are scheduled serially e. A sequence of chained transactions and a sequence of transactions linked by a recoverable queue f. A sequence of transactions linked by a recoverable queue and a nested transaction consisting of subtransactions that are executed serially g. A nested transaction consisting of a set of concurrently executing siblings and a set of concurrently executing peer-related subtransactions of a distributed transaction h. A nested transaction consisting of subtransactions that execute serially and a multilevel transaction i. A nested transaction consisting of subtransactions that execute serially and a transaction using declarative demarcation consisting of modules specified with RequiresNew
Which of the following expands on the domain concept by linking domains in logical structures named trees, and multiple trees into forests?
A. WSU B. Active Directory C. NAP D. Enterprise Directory
What is an object in an object-oriented program? How can an object communicate with another object in such a program?
What will be an ideal response?
What is the benefit of using a call by reference when working with vectors or queue objects? In other words, why is it good to pass a reference of a queue or vector to a function instead of using a call by value?
What will be an ideal response?