[Jul-2026] 100% Guarantee Download PCED-30-02 Exam Dumps PDF Q&A [Q19-Q34]

NO.19 A loop is designed using range(1, 6, 2) to iterate through numbers. The developer wants to know exactly which values will be generated during execution. Which sequence correctly represents the values produced?

1, 3, 5

1, 2, 3, 4, 5

2, 4, 6

1, 3

NO.20 A Python developer is testing truth values of different data types using the bool() function. The expression bool([0]) is evaluated in the script. What result should be expected when this expression is printed?

False

True

Error

None

NO.21 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.

NO.22 A health researcher uses wearable devices to record physical activity and sends a survey to randomly selected participants across age groups.
Why can this approach be effective? Select the best answer.

It uses unstructured interviews to validate automated tracking, improving bias detection.

It limits sampling to one demographic, ensuring high-quality data within a specific group.

It relies on observational methods, which are more accurate than surveys or sensors.

It combines automated data collection with representative sampling, reducing the risk of bias.

NO.23 Below are six possible summaries for your presentation:
– Summary 1: “The data revealed a moderate positive correlation between age and recycling frequency. While 72% of students reported recycling paper regularly, only 39% reported recycling plastic.”
– Summary 2: “Analysis showed notable differences in recycling habits by material type, with paper being most recycled and plastic least recycled.”
– Summary 3: “Older kids recycled more than younger ones. Paper was the most recycled item- plastic got forgotten a lot.”
– Summary 4: “Student responses showed positive environmental habits overall, though participation varied by waste type.”
– Summary 5: “A lot of students said they recycle. Some didn’t answer every question, so we couldn’t figure out everything.”
– Summary 6: “We asked more than 300 students about recycling. Most said they recycle paper, but way fewer recycle plastic.” Which communication style is the best fit for Group A (data scientists) and Group B (12-year- olds), respectively? Select the best answer.

Summary 1 for Group A, Summary 3 for Group B

Summary 4 for Group A, Summary 3 for Group B

Summary 6 for Group A, Summary 5 for Group B

Summary 2 for Group A. Summary 6 for Group B

Summary 6 for Group A, Summary 3 for Group B

Summary 1 for Group A, Summary 6 for Group B

NO.24 Which of the following statements about Python functions are correct? (Choose two.)

Functions can only return numeric values or strings.

Positional arguments must be passed in the order defined, while keyword arguments can be passed in any order using their parameter names.

A function cannot call itself or be passed as an argument to itself.

passexecutes the function body and returns its result.

If a function does not contain a returnstatement, it returns Noneby default.

Default parameters must always come before required ones in the parameter list.

NO.25 An e-commerce site records every product view and purchase.
Which of the following best describes how these logs become marketing insights?

Raw event logs are validated, organized, and compiled into datasets – like timestamped user actions – which then support system debugging.

Raw event logs are filtered, aggregated, and formatted into summaries – like total visits per category – which then provide traffic reports.

Raw event logs are stored, archived, and indexed – like by user ID and session – which then facilitate audit trails.

Raw event logs are structured, analyzed, and interpreted into information – like conversion rates by product – which then builds knowledge of customer preferences.

NO.26 A programmer writes a script to test operator precedence using the expression 3 + 4 * 2 ** 2. The goal is to evaluate the result correctly based on Python’s operator hierarchy rules. What result should the script produce?

49

35

19

28

NO.27 You are writing a function to validate battery voltage readings. The rules are:
– If the reading is “MISSING”or None, return “Missing”.
– If the value is below 2.5or above 4.2, return “Outlier”.
Otherwise, return “Normal”.
Which version correctly implements this logic using the most robust conditional and nested structures? Select the best answer.

NO.28 A teacher wants to compare the number of students in different school clubs:

Which type of chart would be most appropriate to show this comparison? Select the best answer.

Line chart

Pie chart

Bubble chart

Bar chart

NO.29 You are reading a data.csvfile line by line. To prepare each line for formatting with f-strings, you need to remove extra whitespace and split the values by commas.
Which line should you insert to correctly clean and parse the input?

fields = line.strip().split(‘, ‘)

fields = line.split().strip(‘, ‘)

fields = line.replace(‘, ‘, ‘|’).split(‘|’)

fields = line.split(‘, ‘).trim()

NO.30 A script defines a variable x = None and checks its truth value using a conditional statement. The developer wants to understand how Python evaluates None in Boolean contexts. What will bool(x) return?

True

False

Error

None

NO.31 You are working with city names entered by users. These names may contain inconsistent capitalization and unwanted spaces.
To standardize the data, you want to:
– Remove any leading or trailing whitespace, and
– Capitalize the first letter of each word (e.g., convert “new york” to “New York”).
For example:
” New york ” → “New York”
“lOS ANGELES” → “Los Angeles”
You are given a variable citythat contains the raw input.
Which line of code correctly updates the value of cleaned_cityto apply the required transformation? Select the best answer.

cleaned_city = city.strip().capitalize()

cleaned_city = city.upper().replace(” “, “”)

cleaned_city = city.upper().strip()

cleaned_city = city.strip().title()

NO.32 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?

[1,2,3,4,5]

[1,2,3,[4,5]]

[4,5,1,2,3]

Error

NO.33 A data analyst exports a cleaned dataset from Python and wants to share it with a colleague for easy use in Excel.
Which file format is best suited for this purpose? Select the best answer.

CSV, because it stores tabular data in plain text and is compatible with spreadsheet applications.

XML, because it automatically preserves spreadsheet formatting and charts.

JSON, because it stores hierarchical data and is designed for visual presentation in Excel.

SQL, because it directly converts tabular data into database tables that Excel can open.

NO.34 Consider the following Python code:

What will be printed when the code above is executed?
40