Exam PCAP topic 1 question 140 discussion

Actual exam question from Python Institute's PCAP

Question #: 140
Topic #: 1

Assuming that the snippet below has been executed successfully, which of the following expressions evaluate to True? (Choose two.) string = 'SKY'[::-1] string = string[-1]

A. string[0] == 'Y'
B. string[0] == string [-1]
C. string is None
D. len(string) == 1

Show Suggested Answer

Suggested Answer: BD 🗳️

by macxsz at April 30, 2022, 8:29 a.m.

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deckman

Highly Voted 3 years, 1 month ago

Selected Answer: BD

B and D are correct

upvoted 6 times

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Jos015

Most Recent 1 year, 7 months ago

Selected Answer: BD

string = 'SKY'[::-1] print (string) string = string[-1] print (string) print (string[0] == 'Y') print (string[0] == string[-1]) print (string is None) print (len(string) == 1)

upvoted 4 times

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emanuelcar990

1 year, 10 months ago

string after reverse and just take -1 = string = S string[0] == string [-1] len(string) == 1

upvoted 1 times

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Ans A, False # string[0] == 'S' =>So string[0] !== 'Y' return false Ans B, False # string[0] == 'Y' => but string[-1] = S, return false Ans C, False # string is None => but string = 'SKY', so return false Ans D, True # len(string) = 1 => so len(string) == 1, so return true Correct answer should be B and D

upvoted 1 times

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dicksonpwc

2 years, 3 months ago

B and D are correct answer

upvoted 1 times

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macxsz

3 years, 2 months ago

True: B. string[0] == string [-1] D. len(string) == 1

upvoted 4 times

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