FC0-U71 Software Development Concepts Practice Question
A developer is writing pseudocode for a program that calculates the average of a list of numbers. Which THREE of the following are valid components that would likely appear in the pseudocode? (Select THREE.)
⚠ Common exam trap
CompTIA often tests the distinction between algorithmic steps (like initialization, iteration, and arithmetic) and extraneous programming constructs (like class definitions or database queries) to see if candidates understand the essence of pseudocode for simple computations.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Initialize sum to 0
Initializing a variable (like sum) to a starting value (0) is a fundamental step in accumulation algorithms. Without this initialization, the sum would contain an undefined or garbage value, leading to incorrect results. This is a standard practice in pseudocode and real programming languages alike.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Initialize sum to 0
Why this is correct
Starting sum at 0 is a typical step.
- ✓
For each number in list, add number to sum
Why this is correct
Iterating through the list is a common step.
- ✓
Divide sum by count of numbers
Why this is correct
Computing the average requires division.
- ✗
Define a class named Calculator
Why it's wrong here
Pseudocode is language-agnostic and typically avoids class definitions.
- ✗
Execute SQL query to retrieve numbers from database
Why it's wrong here
Pseudocode focuses on logic, not database queries.
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