The operating condition that cannot be identified by using a queuing model is the:

• A.Average percentage of time that a service facility is idle.
• B.Probability of a specified number of units in the queue.
• C.Actual amount of time each unit spends in the queue.
• D.Average number of units in the system and the mean length of the queue.

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Which of the following controls would be most efficient to protect business data from corruption and errors?

• A.Controls to quickly identify malicious intrusion attempts.
• B.Controls to calculate batch totals to identify an error before approval.
• C.Controls to encrypt the data so that corruption is likely ineffective.
• D.Controls to ensure data is unable to be accessed without authorization.

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An organization has a total asset turnover of 3.0 times and a total debt-to-total assets ratio of 80 percent. If the organization has total debt of $1 000 000 what is the organization's sales level?

• A.$3.750.000
• B.$266.667
• C.$416,667
• D.$5 000.000

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An Internet firewall is designed to provide adequate protection against which of the following?

• A.A computer virus.
• B.Unauthenticated logins from outside users.
• C.Insider leaking of confidential information.
• D.A Trojan horse application.

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The term "short-selling" is the:

• A.Selling of a security that was purchased by borrowing money from a broker.
• B.Selling of a security that is not owned by the seller.
• C.Selling of all the shares you own in an entity in anticipation that the price will decline dramatically.
• D.Betting that a stock will increase by a certain amount within a given period of time.

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