PCEP-30 Expressions Practice Questions
The free PCEP-30-02: PCEP – Certified Entry-Level Python Programmer questions that deal with expressions, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #6
Which of the following expressions evaluate to a non-zero result? (Select two answers.)
Select 2 answers.
Correct answer: B, C
Explanation
** binds tightest, then / and //. A: 8 / 4 - 2 = 0.0. B: 4 / 8 - 2 = -1.5. C: 1 / 4 - 1 = -0.75. D: 4 // 8 = 0. Only B and C are non-zero.
Question #10
Assuming that the following assignment has been successfully executed: my_list = [1, 1, 2, 3] Select the expressions which will not raise any exception. (Select two expressions.)
Select 2 answers.
Correct answer: B, D
Explanation
my_list[-10] and my_list[6] are out of range and raise IndexError. my_list[my_list[3]] evaluates to my_list[3], which is 3, and my_list[0:1] is a slice; slices never raise even when out of range.
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