PCEP-30-02 3.2 Collect and Process Data Using Tuples PCEP-30 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   When would you typically choose a tuple over a list?

   • AWhen you need to sort the collection in place.
   • BWhen you need a fixed collection of values that should not change.
   • CWhen you need to frequently add and remove elements.
   • DWhen you need to store a large number of elements that will change often.
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   Given `t = ([1, 2], 3)`, which operation is valid?

   • At[0].append(4)
   • Bt[0] = [3]
   • Ct.append(4)
   • Dt[1] = 4
   Reveal Solution Discussion Select an answer first
4. 18application · easy

   A developer needs to create an empty tuple and then verify that it is empty. Which code snippet correctly creates an empty tuple?

   • At = tuple([])
   • Bt = (0)
   • Ct = (None)
   • Dt = ()
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5. 19application · medium

   A developer has a tuple `t = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)` and needs to extract every third element starting from index 1, producing (1, 4, 7). Which slice expression achieves this?

   • At[1:7:3]
   • Bt[::3]
   • Ct[1::3]
   • Dt[1:8:2]
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6. 20foundation · easy

   Which of the following is a shared feature of both tuples and lists?

   • AThey are both ordered sequences that support indexing.
   • BThey both have an append() method.
   • CThey both support item assignment.
   • DThey both can be modified in place.
   Reveal Solution Discussion Select an answer first