Online Access Free PCED-30-02 Practice Test

A list is reversed using slicing: lst[::-1]. The programmer wants to confirm whether this modifies the original list or creates a new one. What is the correct behavior?

• A.Modifies original
• B.Returns None
• C.Error
• D.Creates new list

A variable is assigned using chained assignment: a = b = c = 10. The developer then changes b =
5. What will be the value of a after this operation?

• A.Error
• B.None
• C.10
• D.5

A list is defined as [1, 2, 3]. The programmer uses the method .append([4, 5]). What will the resulting list look like after execution?

• A.Error
• B.[4,5,1,2,3]
• C.[1,2,3,[4,5]]
• D.[1,2,3,4,5]

The following chart shows how a student spends 24 hours in a day:

Which statements are most accurate? (Choose two.)

• A.Leisure accounts for a moderate portion of the student's daily schedule, larger than commuting but smaller than the time spent at school.
• B.Leisure and meals combined equal the time spent at school.
• C.More time is spent commuting than on leisure.
• D.Commuting is the second most time-consuming activity.
• E.Sleep and school take up the majority of time in a day.
• F.School and homework together take up half of the day's time.

You have a list of test scores, where each entry includes a student name and a score. Some students appear more than once. You want to compute the average score for each student and store the results in a dictionary. Here's the partial code block:

Which code correctly replaces the # MISSING CODE comment to calculate the average score for each student? Select the best answer.

• A.
• B.
• C.
• D.