FC0-U71 Applications and Software Practice Question
A software engineer is debugging a program and needs to identify potential issues. Which THREE tools or techniques are commonly used in debugging? (Select THREE.)
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
✓
Log files
Breakpoints pause execution to inspect state, step-through executes line by line, and log files record events. Source code is not a tool, compilation is a build step.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Compiler
Why it's wrong here
Compiler translates source code, not a debugging tool.
- ✓
Log files
Why this is correct
Logs record events for analysis.
- ✓
Breakpoints
Why this is correct
Breakpoints pause execution for inspection.
- ✗
Source code editor
Why it's wrong here
Editor is used to write code, not debug.
- ✓
Step-through execution
Why this is correct
Executes code line by line to find errors.
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Same concept, more angles
2 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. During debugging, a developer sets a breakpoint and steps through the code line by line. Which debugging tool feature is being used to execute one line of code at a time?
hard- ✓ A.Step execution
- B.Breakpoint
- C.Variable inspection
- D.Logging
Why A: Step-through execution (or step into/over) allows executing code one line at a time to observe behavior.
Variation 2. A developer is debugging a program that unexpectedly crashes. Which TWO tools or techniques are commonly used to identify the cause of the crash? (Select the two correct answers.)
medium- A.Code compilation
- B.Refactoring
- ✓ C.Breakpoints
- ✓ D.Logging
- E.Code review
Why C: Breakpoints allow pausing execution to inspect state, and logging records events to trace execution flow.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.