Which of the Following Statements Is False

question 14

Multiple Choice

Which of the following statements is false?

• A) If an operation requires the executing thread to XE "lock:hold" XE "hold a lock" hold a lock while the operation is performed, a thread must XE "lock:acquire" XE "acquire a lock" relase the lock before proceeding with the operation. Other threads attempting to perform an operation that requires the same lock will be blocked until the first thread XE "lock:release" XE "release a lock" releases the lock, at which point the blocked threads may attempt to acquire the lock and proceed with the operation.
• B) To specify that a thread must hold a monitor lock to execute a block of code, the code should be placed in a synchronized statement.
• C) Code in a synchronized statement is said to be guarded by the monitor lock; a thread must acquire the lock to execute the guarded statements.
• D) The monitor allows only one thread at a time to execute statements within synchronized statements that lock on the same object, as only one thread at a time can hold the monitor lock. The synchronized statements are declared using the synchronized keyword.

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Definitions:

Residual Income

Earnings that exceed the minimum required return on investment; it's what remains after all costs and expenses have been deducted.

Return on Investment

A performance measure used to evaluate the efficiency of an investment or compare the efficiency of a number of different investments, calculated as net profit divided by the cost of the investment.

Gross Margin

The difference between revenue and cost of goods sold, divided by revenue, expressed as a percentage.

Average Operating Assets

The average value of a company's assets used in its operating activities over a certain period.