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Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

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1. What is the output of this code?

import pandas as pd
idx = pd.Index(['a', 'b', 'c'])
print(idx.is_unique)

A. False B. True C. Raises AttributeError D. None Correct answer: B. 2. What does this code return?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.set_index('a').index.name)

A. None B. 'index' C. 'a' D. Raises KeyError Correct answer: C. 3. What is the result?

import pandas as pd
s = pd.Series([1, 2, 3])
print(s.add(1).tolist())

A. [1, 2, 3] B. [2, 3, 4] C. [1, 3, 5] D. Error Correct answer: B. 4. What does this code output?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.nlargest(2, 'a')['a'].tolist())

A. [1, 2] B. [2, 3] C. [3, 2] D. [3, 1] Correct answer: C. 5. What is printed?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.nsmallest(1, 'a').iloc[0, 0])

A. 1 B. 2 C. 3 D. Error Correct answer: A. 6. What does this code return?

import pandas as pd
s = pd.Series([1, 2, 3])
print(s.diff().isna().sum())

A. 0 B. 1 C. 2 D. 3 Correct answer: B. 7. What is the output?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.cumsum()['a'].iloc[-1])

A. 3 B. 5 C. 6 D. Error Correct answer: C. 8. What does this code produce?

import pandas as pd
df = pd.DataFrame({'a': [1, 2], 'b': [3, 4]})
print(df.pipe(lambda x: x.shape))

A. (1, 4) B. (2, 2) C. (4, 1) D. Error Correct answer: B. 9. What is returned?

import pandas as pd
s = pd.Series([10, 20, 30])
print(s.take([2, 0]).tolist())

A. [10, 20] B. [30, 10] C. [20, 30] D. Error Correct answer: B. 10. What does this output?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.any().iloc[0])

A. False B. True C. None D. Error Correct answer: B. 11. What is the result?

import pandas as pd
df = pd.DataFrame({'a': [0, 0, 1]})
print(df.all().iloc[0])

A. True B. False C. None D. Error Correct answer: B. 12. What does this code return?

import pandas as pd
s = pd.Series(['a', 'b', 'c'])
print(s.repeat(2).shape)

A. (3,) B. (6,) C. (2, 3) D. Error Correct answer: B. 13. What is printed?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.melt().shape)

A. (1, 3) B. (3, 2) C. (3, 1) D. (1, 2) Correct answer: B. 14. What does this code output?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.stack().shape)

A. (3,) B. (3, 1) C. (1, 3) D. Error Correct answer: A. 15. What is the result?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.unstack().isna().sum().sum())

A. 0 B. 1 C. 2 D. Error Correct answer: A. 16. What does this code return?

import pandas as pd
s = pd.Series([1, 2, 3])
print(s.to_numpy().ndim)

A. 0 B. 1 C. 2 D. Error Correct answer: B. 17. What is printed?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.axes[0].equals(df.index))

A. True B. False C. None D. Error Correct answer: A. 18. What does this code output?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.copy(deep=False) is df)

A. True B. False C. None D. Error Correct answer: B. 19. What is the result?

import pandas as pd
s = pd.Series([1, 2, 3])
print(s.equals(pd.Series([1, 2, 3])))

A. True B. False C. None D. Error Correct answer: A. 20. What does this code output?

import pandas as pd
df = pd.DataFrame({'a': [1, 2, 3]})
print(df.info() is None)

A. True B. False C. None D. Error Correct answer: A.

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Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

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Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

Take Control of Selling in Amazon! 💫Too many tools, too little time? With dynamic pricing, real-time stock tracking, order monitoring and AI-powered BuyBox hunting, SellerFlash makes selling effortless in Amazon. 💫Say goodbye to manual chaos. With SellerFlash, you will manage listings, inventory, buyer messages and feedback campaigns all from one smart cloud platform designed for Amazon sellers. 👉🏽https://www.sellerflash.com/en/ Sponsored By WaybienAds

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