Quiz: Chapter 8 :Python Data Structures (Python for Everybody Specialization) Answers 2025

Question 1

How are “collection” variables different from normal variables?
✅ Collection variables can store multiple values in a single variable
❌ Can only store a single value
❌ Pull multiple network documents together
❌ Merge output streams

🧠 Explanation:
A collection variable (like a list, tuple, or dictionary) holds multiple values under one variable name.

Question 2

What Python keywords are used to loop through a list?
✅ for / in
❌ try / except
❌ foreach / in
❌ def / return

🧠 Explanation:
The for ... in syntax is used for iterating over items in a collection (e.g. for item in my_list:).

Question 3

How to print ‘Sally’?

✅ print(friends[2])
❌ print(friends[3])
❌ print(friends[‘Sally’])
❌ print(friends[2:1])

🧠 Explanation:
List indexing starts from 0 → Sally is at index 2.

Question 4

What does this code do?

✅ Nothing would print — the program fails with a traceback error
❌ banana
❌ b
❌ Banana

🧠 Explanation:
Strings are immutable — you can’t modify them by index.

Question 5

Which statement prints the length of a list named data?
✅ print(len(data))
❌ print(data.length)
❌ print(data.length())
❌ print(strlen(data))
❌ print(length(data))

🧠 Explanation:
len() is the built-in function that returns the length of sequences like lists, strings, tuples, etc.

Question 6

What type of data is produced when you call:

✅ A list of integers
❌ A string
❌ A list of words
❌ A list of characters
❌ A boolean

🧠 Explanation:
range(5) → [0,1,2,3,4] after converting to list.

Question 7

What does this code print?

✅ 6
❌ 15
❌ [1, 2, 3, 4, 5, 6]
❌ 21

🧠 Explanation:
a + b joins both lists into [1,2,3,4,5,6].
len(c) = 6 elements.

Question 8

Which slicing operation produces [12, 3]?

✅ t[2:4]
❌ t[1:3]
❌ t[:]
❌ t[2:2]
❌ t[12:3]

🧠 Explanation:
t[2:4] picks elements at indexes 2 and 3 → [12, 3].

Question 9

What list method adds a new item to the end of a list?
✅ append()
❌ push()
❌ add()
❌ pop()
❌ index()

🧠 Explanation:
list.append(item) adds an element to the end of a list in Python.

Question 10

What will this print?

✅ Glenn
❌ Joseph
❌ Sally
❌ friends

🧠 Explanation:
.sort() arranges the list alphabetically → ['Glenn', 'Joseph', 'Sally'].
Index [0] = “Glenn”.

🧾 Summary Table