| 2701 |
Which method replaces all missing values in df with 0? |
Computer Science/Informatics Practices
Missing values and MySQL |
Easy |
| 2702 |
df has columns A = [1, NaN, 3] and B = [NaN, NaN, 6]. What is the shape of df.dropna()? |
Computer Science/Informatics Practices
Missing values and MySQL |
Medium |
| 2703 |
For the same df, what is the shape of df.dropna(how='all')? |
Computer Science/Informatics Practices
Missing values and MySQL |
Medium |
| 2704 |
A student wants to add the rows of a DataFrame df to an existing MySQL table result without deleting old rows… |
Computer Science/Informatics Practices
Missing values and MySQL |
Hard |
| 2705 |
Which pyplot function draws a pie chart? |
Computer Science/Informatics Practices
Chart types |
Easy |
| 2706 |
Which chart is most suitable for showing how a city's monthly temperature changes over a year? |
Computer Science/Informatics Practices
Chart types |
Easy |
| 2707 |
A teacher wants to see how the marks of 200 students are distributed across intervals such as 0–10, 10–20 and… |
Computer Science/Informatics Practices
Chart types |
Medium |
| 2708 |
Which chart directly displays the minimum, first quartile, median, third quartile and maximum of a data set? |
Computer Science/Informatics Practices
Chart types |
Medium |
| 2709 |
How is a frequency polygon related to a histogram? |
Computer Science/Informatics Practices
Chart types |
Hard |
| 2710 |
Which function sets the text below the x axis of a plot? |
Computer Science/Informatics Practices
Customising plots |
Easy |
| 2711 |
Which function saves the current plot as an image file? |
Computer Science/Informatics Practices
Customising plots |
Easy |
| 2712 |
What does plt.plot(x, y, 'r--') draw? |
Computer Science/Informatics Practices
Customising plots |
Medium |
| 2713 |
A student writes plt.plot(x, y1, label='2023') and plt.plot(x, y2, label='2024') but no legend appears. What … |
Computer Science/Informatics Practices
Customising plots |
Medium |
| 2714 |
A program calls plt.show() and then plt.savefig('chart.png'), and the saved image is blank. What is the most … |
Computer Science/Informatics Practices
Customising plots |
Hard |
| 2715 |
Which of the following is an example of an active digital footprint? |
Computer Science/Informatics Practices
Digital footprint and netiquette |
Easy |
| 2716 |
The set of good manners and behaviour expected while using the Internet is called |
Computer Science/Informatics Practices
Digital footprint and netiquette |
Easy |
| 2717 |
A website records a visitor's pages viewed and location without the visitor typing anything. This data forms … |
Computer Science/Informatics Practices
Digital footprint and netiquette |
Medium |
| 2718 |
A person keeps posting provocative comments in a class group to upset others. What is the advice of good neti… |
Computer Science/Informatics Practices
Digital footprint and netiquette |
Medium |
| 2719 |
Ananya posts a photo showing her school badge and house number with a public setting. Why is this risky? |
Computer Science/Informatics Practices
Digital footprint and netiquette |
Hard |
| 2720 |
Which type of intellectual property protects a company's logo? |
Computer Science/Informatics Practices
Intellectual property |
Easy |