Module 3 Quiz — Data Collections

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1. What index does the first item in a list have?

a) 1

b) 0

c) -1

d) It depends on the list

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2. What does [1, 2, 3, 4, 5][-1] return?

a) Error

b) 1

c) 4

d) 5

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3. What does [1, 2, 3, 4, 5][1:3] return?

a) `[1, 2]`

b) `[2, 3]`

c) `[2, 3, 4]`

d) `[1, 2, 3]`

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4. Which method adds an item to the end of a list?

a) `list.add()`

b) `list.append()`

c) `list.push()`

d) `list.insert()`

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5. What's the result of [3, 1, 2].sort()?

a) `[1, 2, 3]`

b) `None` (sorts in place)

c) Error

d) `[3, 1, 2]`

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6. Which of these creates a dictionary?

a) `["key": "value"]`

b) `("key": "value")`

c) `{"key": "value"}`

d) `<"key": "value">`

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7. What does {"a": 1}.get("b") return?

a) Error

b) 1

c) `None`

d) `0`

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8. How do you access the value for key "name" in a dict?

a) `dict(name)`

b) `dict["name"]`

c) `dict.name`

d) `dict->name`

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9. What does len(["a", "b", "c"]) return?

a) 2

b) 3

c) 4

d) Error

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10. What does [1, 2, 3, 4, 5][::-1] return?

a) `[5, 4, 3, 2, 1]`

b) `[1, 2, 3, 4, 5]`

c) `[5]`

d) Error