Using WS-AtomicTransaction You Wrap 3 SOAP-Based Web Services in a Single

question 1

Multiple Choice

Using WS-AtomicTransaction you wrap 3 SOAP-based Web services in a single transaction. When it is time to vote on the outcome of the transaction, 2 of the services vote to commit the changes made during the transaction, but a vote from the third service is not received. What will happen?

• A) The changes are committed because the transaction is considered successful as long as no Abort votes are received.
• B) The changes are rolled back because the transaction is considered unsuccessful when there is a missing vote.
• C) The changes are committed because the transaction is considered successful as long as one Commit vote is received.
• D) The changes are aborted because a transaction can only be considered successful when more than 2 Commit votes are received.

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Definitions:

Contribution Margin Ratio

A financial metric that shows what percentage of sales revenue is available to cover fixed costs and generate profit.

Variable Costs

Costs that change in proportion to the level of activity or volume of production, such as raw materials and labor expenses.

Fixed Costs

Expenses that do not change with the level of production or sales, such as rent, salaries, and insurance, offering predictability in budgeting.

Operating Leverage

A measure of the relative mix of a business’s variable costs and fixed costs, computed as contribution margin divided by operating income.