PCED-30-02 무료 덤프문제 온라인 액세스

A script defines a variable x = None and checks its truth value using a conditional statement. The developer wants to understand how Python evaluates None in Boolean contexts. What will bool(x) return?

• A.True
• B.Error
• C.None
• D.False

Consider the following Python code:

What will be printed when the code above is executed?
40

• A.[10, 20, 30, 40]
  1
  [1, 2, 4, 5, 6]
  50
• B.[20, 30, 40]
  1
  [1, 2, 4, 5, 6]
• C.[10, 20, 30, 40]
  0
  [1, 2, 3, 4, 5, 6]
  50
• D.[20, 30, 40]
  1
  [1, 2, 4, 5, 6]
  50

A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.

• A.SQL, because it directly converts tabular data into database tables that Excel can open.
• B.XML, because it automatically preserves spreadsheet formatting and charts.
• C.JSON, because it stores hierarchical data and is designed for visual presentation in Excel.
• D.CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.

You are writing a function to validate battery voltage readings. The rules are:
- If the reading is "MISSING"or None, return "Missing".
- If the value is below 2.5or above 4.2, return "Outlier".
Otherwise, return "Normal".
Which version correctly implements this logic using the most robust conditional and nested structures? Select the best answer.

• A.
• B.
• C.
• D.

Which of the following statements about Python functions are correct? (Choose two.)

• A.If a function does not contain a returnstatement, it returns Noneby default.
• B.A function cannot call itself or be passed as an argument to itself.
• C.Functions can only return numeric values or strings.
• D.Positional arguments must be passed in the order defined, while keyword arguments can be passed in any order using their parameter names.
• E.Default parameters must always come before required ones in the parameter list.
• F.passexecutes the function body and returns its result.