Lesson 12 Quiz: Lists: Many Items, Plus Indexing and Append

1. What is a list, and what brackets does it use?

A. One value stored in many variables, inside curly brackets. B. Many values stored in order in a single variable, inside round brackets. C. Many values stored in order in a single variable, inside square brackets. D. A single value stored in one variable, inside square brackets.

2. In `["apple", "banana", "cherry"]`, what is at position 0, and what is at position -1?

A. Position 0 is `"banana"`; position -1 is `"apple"`, the first item. B. Position 0 is `"apple"`; position -1 is `"apple"`, the first item. C. Position 0 is `"cherry"`; position -1 is `"banana"`, the middle item. D. Position 0 is `"apple"`; position -1 is `"cherry"`, the last item.

3. What does `len()` do to a list?

A. It counts how many items the list has. B. It adds a new item to the end of the list. C. It sorts the items in the list. D. It removes the last item from the list.

4. What is the difference between `fruits.append("orange")` and `fruits[1] = "blueberry"`?

A. `append()` replaces the item at position 1; `fruits[1] = ...` adds a new item at the end. B. `append()` adds a new item at the end; `fruits[1] = ...` replaces the item already at position 1. C. Both add a new item at the end of the list. D. Both replace the item already at position 1.

5. Why does a loop over a list still work if the list later grows?

A. Because the loop remembers the list's original size and ignores new items. B. Because the loop only runs once, so the list cannot grow while it runs. C. Because the loop stops as soon as the list grows. D. Because the loop walks whatever items are in the list at run time, however many there are.