PCPP1 Practice Test 15 — 15 Questions

Question 1

What is the primary difference between the 'socket.AF_INET' and 'socket.AF_INET6' address families?

Accepted Answer

AF_INET is for IPv4; AF_INET6 is for IPv6. AF_INET is for IPv4, while AF_INET6 is for IPv6 addressing.

Answer

AF_INET6 supports UDP only

Answer

AF_INET requires a password

Answer

AF_INET is faster than AF_INET6

Question 2

Which TWO of the following represent common data formats used for REST API request/response payloads?

Accepted Answer

XML. JSON and XML are the most common formats, though JSON is significantly more popular in modern REST APIs.

Answer

Plain text only

Answer

SQL queries

Answer

Binary-encoded images

Question 3

Which THREE of the following are true regarding the use of 'threading' and 'requests' in Python?

Accepted Answer

Threads share the same memory space. Multithreading is excellent for I/O-bound tasks like HTTP requests, but shared resources must be handled carefully.

Answer

Requests is inherently CPU-bound

Answer

Threads bypass the GIL entirely

Question 4

When parsing an XML document using xml.etree.ElementTree, you want to find all 'item' tags that are immediate children of the root element. Which method is most efficient for this?

Accepted Answer

root.findall('item'). The findall() method with a direct path is the standard way to retrieve specific children.

Answer

root.iter('item')

Answer

root.find('item')

Answer

root.get('item')

Question 5

You are configuring a logging FileHandler. What does the 'mode' parameter control?

Accepted Answer

The file opening mode.. The 'mode' parameter controls the file opening mode (e.g., 'a' for append, 'w' for write).

Answer

The log format.

Answer

The rotation interval.

Answer

The character encoding.

Question 6

Which THREE of the following are valid parameters for the csv.writer constructor?

Accepted Answer

lineterminator. delimiter, quotechar, and lineterminator are valid parameters.

Answer

encoding

Answer

buffer_size

Question 7

Which attribute of a Button widget controls the text displayed on it?

Accepted Answer

text. The 'text' parameter defines the display label of the button.

Answer

value

Answer

caption

Answer

label

Question 8

Which THREE of the following are valid ways to configure a widget's appearance after it has been created?

Accepted Answer

widget['bg'] = 'blue'. Widget appearance can be configured via the config() method, using dictionary-style access, or by directly calling attribute-specific methods if they exist (though config is standard).

Answer

widget.set_bg('blue')

Answer

widget.style = 'blue'

Question 9

What is the purpose of the 'socket.shutdown()' method in Python?

Accepted Answer

It stops further communication on the socket. shutdown() allows you to stop sending or receiving data on a socket while keeping the file descriptor open.

Answer

It forces the socket to release its memory

Answer

It resets the socket connection immediately

Answer

It closes the file descriptor completely

Question 10

You need to configure the logging module to capture logs from multiple modules while ensuring that logs from third-party libraries (e.g., 'urllib3') are only captured at the WARNING level. How do you set this?

Accepted Answer

logging.getLogger('urllib3').setLevel(logging.WARNING). You can configure individual loggers using getLogger() and setting their specific level attribute.

Answer

logging.config.dictConfig({'urllib3': 'WARNING'})

Answer

logging.basicConfig(level=logging.WARNING)

Answer

logging.setLevel('urllib3', logging.WARNING)

Question 11

You are using configparser and want to access a value that might not exist, but provide a default value if it is missing. Which method is most appropriate?

Accepted Answer

parser.get('section', 'option', fallback='val'). The get() method accepts a 'fallback' argument to return a default value if the option is missing.

Answer

parser.get('section', 'option', default='val')

Answer

parser.get_or_default('section', 'option', 'val')

Answer

parser.exists('section', 'option') ? ...

Answer

parser.get('section', 'option') or 'val'

Question 12

When using the grid layout manager, which option allows a column to grow when the window is resized?

Accepted Answer

root.columnconfigure(0, weight=1). The columnconfigure() method is used to set the weight of a column, allowing it to expand.

Answer

root.grid_grow(column=0, weight=1)

Answer

root.grid_column(0, resizable=True)

Answer

root.set_grid(0, expand=True)

Question 13

How do you access the value of a StringVar associated with an Entry widget?

Accepted Answer

var.get(). The get() method is used on the StringVar object to retrieve its current value.

Answer

var.retrieve()

Answer

var.content()

Answer

var.value

Question 14

Which TWO of the following are valid ways to terminate a Tkinter script gracefully?

Accepted Answer

root.quit(). Calling destroy() on the root window or calling the quit() method are standard ways to end a GUI session.

Answer

os.kill()

Answer

exit()

Answer

root.close()

Question 15

Which TWO of the following are true regarding the HTTP 'User-Agent' header?

Accepted Answer

It can be spoofed to mimic browsers. It identifies the client and is often used by servers to block or allow traffic based on client identity.

Answer

It is used to encrypt the payload

Answer

It is automatically set by the socket module

Answer

It is mandatory for all HTTP requests