MCQs on Python Libraries and Frameworks | Python programming

Which of the following is used to create a NumPy array in Python?
- a) numpy.array()
- b) numpy.ndarray()
- c) pandas.DataFrame()
- d) pandas.Series()
What is the output of numpy.zeros((2,3))?
- a) A 2×3 matrix filled with ones.
- b) A 2×3 matrix filled with zeros.
- c) A 2×3 matrix filled with random numbers.
- d) A 3×2 matrix filled with zeros.
Which of the following is used to create a DataFrame in Pandas?
- a) pandas.DataFrame()
- b) numpy.array()
- c) numpy.matrix()
- d) pandas.Series()
What is the default axis for the sum() function in Pandas?
- a) 0 (columns)
- b) 1 (rows)
- c) None
- d) 2 (diagonal)
Which Pandas function is used to read a CSV file?
- a) read_csv()
- b) load_csv()
- c) import_csv()
- d) read()
Which of the following functions in Pandas is used to check the data type of a column?
- a) df.dtype()
- b) df.dtypes()
- c) df.data()
- d) df.checktype()
What does the pandas.concat() function do?
- a) Merges two DataFrames by column.
- b) Merges two DataFrames by row.
- c) Creates a new DataFrame from individual rows.
- d) Sorts a DataFrame by column.

Which function in Matplotlib is used to display a plot?
- a) show_plot()
- b) plot()
- c) display()
- d) show()
What does plt.plot([1,2,3], [4,5,6]) do in Matplotlib?
- a) Plots a graph with x-values 1, 2, 3 and y-values 4, 5, 6.
- b) Plots a pie chart with values 1, 2, 3.
- c) Plots a line chart of random numbers.
- d) Creates a bar chart with x and y values.
Which of the following is used to set the title of a Matplotlib plot?
- a) plt.title()
- b) plt.name()
- c) plt.label()
- d) plt.set_title()
How do you add a legend to a Matplotlib plot?
- a) plt.legend()
- b) plt.add_legend()
- c) plt.legendize()
- d) plt.add_title()
Which of the following is used to plot a bar chart in Matplotlib?
- a) plt.hist()
- b) plt.plot()
- c) plt.bar()
- d) plt.scatter()
What is the purpose of plt.xlabel() in Matplotlib?
- a) To set the title of the plot.
- b) To set the label of the x-axis.
- c) To set the label of the y-axis.
- d) To display the grid on the plot.

Which of the following methods is used to send a GET request in the requests library?
- a) requests.get()
- b) requests.request()
- c) requests.send()
- d) requests.get_request()
What is the purpose of the requests.post() method in the Requests library?
- a) To send a GET request.
- b) To send a POST request.
- c) To fetch the status code of a URL.
- d) To send a PUT request.
How do you pass parameters in a GET request using the requests library?
- a) Using params argument in requests.get().
- b) Using data argument in requests.get().
- c) Using body argument in requests.get().
- d) Using headers argument in requests.get().
Which of the following methods in requests is used to check the status code of a response?
- a) response.status()
- b) response.check()
- c) response.status_code()
- d) response.get_status()
How can you send JSON data in a POST request using the requests library?
- a) requests.post(url, data=json_data)
- b) requests.post(url, json=json_data)
- c) requests.send(url, json=json_data)
- d) requests.post(url, body=json_data)
Which of the following is used to send authentication credentials in a GET request using the Requests library?
- a) auth=(username, password)
- b) headers={'Authorization': 'Bearer token'}
- c) cookies={'session': 'value'}
- d) params={'auth': 'username:password'}

Which of the following is used to define routes in Flask?
- a) @flask.route()
- b) @app.route()
- c) @app.connect()
- d) @flask.connect()
What does the Flask class in Flask do?
- a) Handles HTTP requests and responses.
- b) Manages the database connection.
- c) Sets up the configuration for the app.
- d) All of the above.
Which of the following is the default port number for Flask development server?
- a) 8080
- b) 5000
- c) 8000
- d) 4000
In Django, which file is used to configure URLs for the application?
- a) urls.py
- b) settings.py
- c) app.py
- d) views.py
What is the default database used by Django?
- a) SQLite
- b) PostgreSQL
- c) MySQL
- d) MongoDB
In Django, which of the following command is used to create a new application?
- a) django-admin startproject
- b) django-admin startapp
- c) python manage.py startapp
- d) python manage.py newapp
Which of the following is used for handling static files in Django?
- a) django.static()
- b) django.urls()
- c) django.contrib.staticfiles
- d) django.staticfiles()

What is TensorFlow used for?
- a) Web development.
- b) Machine learning and deep learning.
- c) Data visualization.
- d) Database management.
Which of the following is a key feature of PyTorch?
- a) Static computation graph.
- b) Dynamic computation graph.
- c) Data analysis.
- d) Web development.
Which function in TensorFlow is used to create a constant tensor?
- a) tf.constant()
- b) tf.variable()
- c) tf.create()
- d) tf.data()
In PyTorch, which of the following is used to define a neural network layer?
- a) torch.nn.layer()
- b) torch.layers()
- c) torch.nn.Module()
- d) torch.tensor()

Qno	Answer
1	a) `numpy.array()`
2	b) A 2×3 matrix filled with zeros.
3	a) `pandas.DataFrame()`
4	a) 0 (columns)
5	a) `read_csv()`
6	b) `df.dtypes()`
7	b) Merges two DataFrames by row.
8	d) `show()`
9	a) Plots a graph with x-values 1, 2, 3 and y-values 4, 5, 6.
10	a) `plt.title()`
11	a) `plt.legend()`
12	c) `plt.bar()`
13	b) To set the label of the x-axis.
14	a) `requests.get()`
15	b) To send a POST request.
16	a) Using `params` argument in `requests.get()`.
17	c) `response.status_code()`
18	b) `requests.post(url, json=json_data)`
19	a) `auth=(username, password)`
20	b) `@app.route()`
21	a) Handles HTTP requests and responses.
22	b) 5000
23	a) `urls.py`
24	a) SQLite
25	b) `django-admin startapp`
26	c) `django.contrib.staticfiles`
27	b) Machine learning and deep learning.
28	b) Dynamic computation graph.
29	a) `tf.constant()`
30	c) `torch.nn.Module()`

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