A dictionary `grades = {'math': 90, 'science': 85, 'history': 78}` holds student grades. The developer must find and print the subject with the HIGHEST grade. Which code correctly identifies it?

`best = max(grades.items()); print(best)`

`best = max(grades.values()); print(best)`

`best = max(grades, key=grades.get); print(best)`

`best = max(grades.keys()); print(best)`

A dictionary `prices = {'apple': 1.5, 'banana': 0.5}` stores fruit prices. The developer must print each fruit and its price in the format `apple costs 1.5`. Which loop correctly uses `items()`?

`for fruit, price in prices.items(): print(fruit + ' costs ' + str(price))`

`for fruit in prices: print(fruit + ' costs ' + str(prices[fruit]))`

`for fruit in prices.items(): print(fruit + ' costs ' + str(prices[fruit]))`

`for price in prices.items(): print(price)`

Python InstitutePCEP - Certified Entry-Level Python Programmer

Domain 3Objective 3

PCEP-30-02 3.3 Collect and Process Data Using Dictionaries PCEP-30 Practice Questions (Page 2)

Part of the Data Collections Tuples, Dictionaries, Lists, and Strings domain, which accounts for 25% of the PCEP-30 exam. Python Institute does not publish an official question count, but from its 45-minute exam (~20–30 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 19 practice questions to prepare you well beyond it. (estimate)

19questions here

4free pages

9concepts

25%of the exam

Questions 6–10

6application · medium
A dictionary `stock = {'pen': 10, 'pencil': 20, 'eraser': 5}` tracks inventory. The developer must print a sorted list of all product names. Which code produces the sorted names?
Select an answer first
7foundation · easy
Given `d = {'x': 10, 'y': 20}`, which loop correctly prints all values?
Select an answer first
8application · medium
A dictionary `grades = {'math': 90, 'science': 85, 'history': 78}` holds student grades. The developer must find and print the subject with the HIGHEST grade. Which code correctly identifies it?
Select an answer first
9application · medium
A dictionary `prices = {'apple': 1.5, 'banana': 0.5}` stores fruit prices. The developer must print each fruit and its price in the format `apple costs 1.5`. Which loop correctly uses `items()`?
Select an answer first
10foundation · easy
Given `d = {'x': 10, 'y': 20}`, what is the result of `d['x']`?
Select an answer first

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PCEP-30-02 3.3 Collect and Process Data Using Dictionaries PCEP-30 Practice Questions (Page 2)

Questions 6–10

A dictionary `stock = {'pen': 10, 'pencil': 20, 'eraser': 5}` tracks inventory. The developer must print a sorted list of all product names. Which code produces the sorted names?

Given `d = {'x': 10, 'y': 20}`, which loop correctly prints all values?

A dictionary `grades = {'math': 90, 'science': 85, 'history': 78}` holds student grades. The developer must find and print the subject with the HIGHEST grade. Which code correctly identifies it?

A dictionary `prices = {'apple': 1.5, 'banana': 0.5}` stores fruit prices. The developer must print each fruit and its price in the format `apple costs 1.5`. Which loop correctly uses `items()`?

Given `d = {'x': 10, 'y': 20}`, what is the result of `d['x']`?

Keep studying — Data Collections Tuples, Dictionaries, Lists, and Strings