Various Types of Exceptions Can Occur When You Work with Files

question 23

Multiple Choice

Various types of exceptions can occur when you work with files. Which of the following statements a) , b) or c) is false?

• A) A FileNotFoundError occurs if you attempt to open a non-existent file for reading with the 'r' or 'r+' modes.
• B) A PermissionsError occurs if you attempt an operation for which you do not have permission. This might occur if you try to open a file that your account is not allowed to access or create a file in a folder where your account does not have permission to write, such as where your computer's operating system is stored.
• C) A LockedError (with the error message 'I/O operation on closed file.') occurs when you attempt to write to a file that has already been closed.
• D) All of the above statements are true.

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Definitions:

Operating Characteristics Curve

A graphical representation showing the behavior of a system, such as its true-positive rate versus false-positive rate, under various conditions.

Population Percent Defective

The percentage of items in a given population that do not meet the specified quality criteria, used as a measure of process quality.

OC Curve

The Operating Characteristic Curve, used in statistical quality control, representing the probability of accepting lots as a function of their defect level.

Acceptance Sampling

A statistical quality control method where a random sample of items is inspected to decide if the whole batch meets the prescribed standards.