After Running the Command Umount /Mnt, the Following Error Message

question 189

Multiple Choice

After running the command umount /mnt, the following error message is displayed: umount: /mnt: device is busy. What is a common reason for this message?

• A) The kernel has not finished flushing disk writes to the mounted device.
• B) A user has a file open in the /mnt directory.
• C) Another file system still contains a symlink to a file inside /mnt.
• D) The files in /mnt have been scanned and added to the locate database.
• E) The kernel thinks that a process is about to open a file in /mnt for reading.

---

Definitions:

Dual Approach

In economics, a methodology or analysis technique that involves examining problems from both sides or using two complementary perspectives or sets of tools.

Indifference Curve

A curve representing all combinations of goods and services among which a consumer is indifferent, showing the same level of satisfaction or utility.

Budget Line

A graphical representation of all possible combinations of two goods or services that can be purchased with a given income and prices, identical to the concept of a budget constraint but rephrased.

Duality

Alternative way of looking at the consumer’s utility maximization decision: Rather than choosing the highest indifference curve, given a budget constraint, the consumer chooses the lowest budget line that touches a given indifference curve.