The answer is an incorrect macOS printer driver, specifically a missing or mismatched PostScript Printer Description (PPD) file. This is the most likely cause because macOS relies on PPD files to translate print jobs into a language the laser printer understands, typically PostScript. When the driver or PPD is wrong, the printer receives garbled data it cannot interpret, producing random characters instead of the intended output. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of cross-platform printing issues; a common trap is assuming network problems or cable faults, but since Windows prints fine, the issue is OS-specific. Remember that laser printers often require PostScript drivers on macOS, while Windows may use a different printer language like PCL. A helpful memory tip: “One OS works, one OS garbles—think driver, not cables.”
220-1101 Printers Practice Question
This 220-1201 practice question tests your understanding of printers. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A user reports that their laser printer prints fine from Windows, but when they print from a macOS device, the output is garbled with random characters. Both devices are on the same network. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The macOS printer driver is incorrect
Garbled output from one OS but not another typically indicates a driver or PPD issue. macOS uses PostScript Printer Description (PPD) files for laser printers, and an incorrect or missing PPD can cause communication errors. Installing the correct driver for macOS resolves the problem.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The printer's firmware is outdated
Why it's wrong here
Outdated firmware would affect all devices, not just macOS.
✗
The network cable is faulty
Why it's wrong here
A faulty cable would cause intermittent connectivity or no printing, not garbled output from one OS.
✓
The macOS printer driver is incorrect
Why this is correct
An incorrect driver or PPD file causes the printer to misinterpret print data, resulting in garbled text.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The printer is set to the wrong emulation mode
Why it's wrong here
Wrong emulation mode would affect all print jobs, not just those from macOS.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
A faulty cable would cause intermittent connectivity or no printing, not garbled output from one OS.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Printers — This question tests Printers — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The macOS printer driver is incorrect — Garbled output from one OS but not another typically indicates a driver or PPD issue. macOS uses PostScript Printer Description (PPD) files for laser printers, and an incorrect or missing PPD can cause communication errors. Installing the correct driver for macOS resolves the problem.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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