D 522 Final Exam V3 | D 522 Python for IT
Automation | Actual Q&A with Rationale (D522
Final Exam) | Western Governors University
1. When using the subprocess module, which parameter in subprocess.run() ensures that the
output is returned as a string rather than a bytes object?
A. capture_output=True
B. text=True
C. check=True
D. shell=True
Correct Answer: B
Explanation: The text=True parameter (also known as universal_newlines=True in older
versions) tells Python to decode the stdout and stderr from bytes to strings. By default,
subprocess.run returns raw bytes which can be difficult to manipulate directly. Setting this
parameter allows the developer to use string methods on the resulting data immediately.
2. In a regular expression, which special character matches the beginning of a line?
A. $
B. *
C. ^
D. +
,Correct Answer: C
Explanation: The caret symbol (^) is used in regular expressions to denote the start of a
line or string. It ensures that the pattern search begins specifically at the first character
position. This is vital for parsing log files where certain codes only appear at the beginning
of an entry.
3. Which HTTP status code range indicates that a request was successful?
A. 100-199
B. 400-499
C. 200-299
D. 500-599
Correct Answer: C
Explanation: The 200 series status codes signify that the server successfully received,
understood, and accepted the request. For example, 200 OK is the most common response
for a successful GET request. Understanding these ranges is essential for automating API
interactions and handling errors effectively.
4. What is the purpose of the ‘with’ statement when opening a file in Python?
A. It automatically closes the file after the block of code is finished.
B. It increases the speed of file reading.
C. It allows the file to be opened in multiple modes simultaneously.
, D. It encrypts the data being written to the file.
Correct Answer: A
Explanation: The with statement acts as a context manager that guarantees the file will be
closed properly even if an exception occurs. This prevents resource leaks which can lead to
system instability in long-running automation scripts. It is considered a best practice in
Python for managing external resources like files and sockets.
5. Which function from the ‘os’ module is used to list all files and directories in a specific
path?
A. os.listdir()
B. os.mkdir()
C. os.path.exists()
D. os.chdir()
Correct Answer: A
Explanation: The os.listdir() function returns a list containing the names of the entries in
the directory given by the path. This is a foundational tool for IT automation tasks such as
batch processing files or cleaning up directories. Developers often iterate over this list to
perform operations on each file found.
6. In the unittest framework, which method is used to verify that two values are equal?
A. self.checkEqual()
Automation | Actual Q&A with Rationale (D522
Final Exam) | Western Governors University
1. When using the subprocess module, which parameter in subprocess.run() ensures that the
output is returned as a string rather than a bytes object?
A. capture_output=True
B. text=True
C. check=True
D. shell=True
Correct Answer: B
Explanation: The text=True parameter (also known as universal_newlines=True in older
versions) tells Python to decode the stdout and stderr from bytes to strings. By default,
subprocess.run returns raw bytes which can be difficult to manipulate directly. Setting this
parameter allows the developer to use string methods on the resulting data immediately.
2. In a regular expression, which special character matches the beginning of a line?
A. $
B. *
C. ^
D. +
,Correct Answer: C
Explanation: The caret symbol (^) is used in regular expressions to denote the start of a
line or string. It ensures that the pattern search begins specifically at the first character
position. This is vital for parsing log files where certain codes only appear at the beginning
of an entry.
3. Which HTTP status code range indicates that a request was successful?
A. 100-199
B. 400-499
C. 200-299
D. 500-599
Correct Answer: C
Explanation: The 200 series status codes signify that the server successfully received,
understood, and accepted the request. For example, 200 OK is the most common response
for a successful GET request. Understanding these ranges is essential for automating API
interactions and handling errors effectively.
4. What is the purpose of the ‘with’ statement when opening a file in Python?
A. It automatically closes the file after the block of code is finished.
B. It increases the speed of file reading.
C. It allows the file to be opened in multiple modes simultaneously.
, D. It encrypts the data being written to the file.
Correct Answer: A
Explanation: The with statement acts as a context manager that guarantees the file will be
closed properly even if an exception occurs. This prevents resource leaks which can lead to
system instability in long-running automation scripts. It is considered a best practice in
Python for managing external resources like files and sockets.
5. Which function from the ‘os’ module is used to list all files and directories in a specific
path?
A. os.listdir()
B. os.mkdir()
C. os.path.exists()
D. os.chdir()
Correct Answer: A
Explanation: The os.listdir() function returns a list containing the names of the entries in
the directory given by the path. This is a foundational tool for IT automation tasks such as
batch processing files or cleaning up directories. Developers often iterate over this list to
perform operations on each file found.
6. In the unittest framework, which method is used to verify that two values are equal?
A. self.checkEqual()
