Question 831 of 1,020
Display DevicesmediumMultiple ChoiceObjective-mapped

Cracked Laptop Screen: Why You Replace the LCD Panel

This 220-1201 practice question tests your understanding of display devices. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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's laptop screen has a small crack in the corner, and the display shows lines and discoloration in that area. The rest of the screen works. What is the most cost-effective solution?

Quick Answer

The answer is to replace the LCD panel. A cracked laptop screen involves physical damage to the liquid crystal display layer itself, which cannot be repaired by simply replacing a glass digitizer or applying adhesive; the entire LCD panel must be swapped out because the crack has compromised the internal liquid crystals, causing the lines and discoloration. On the CompTIA A+ Core 1 220-1201 exam, this question tests your knowledge of hardware repair and cost-effective troubleshooting for display issues, often appearing as a trap where students mistakenly think a loose cable or inverter can fix physical cracks. Remember, any visible crack or pressure damage to the screen means the LCD panel is broken, not just the outer glass. Memory tip: “Cracked glass is cosmetic, cracked LCD is catastrophic—replace the whole panel.”

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

Replace the LCD panel.

The LCD panel contains the glass substrate and liquid crystal layer that physically cracks, causing localized lines and discoloration. Replacing just the LCD panel (the display assembly) is the most cost-effective solution because it restores full functionality without the expense of a new laptop or the inconvenience of a permanent external monitor. The display cable is unlikely to cause a crack or localized discoloration, as cable damage typically affects the entire screen or causes intermittent issues.

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.

  • Replace the entire laptop.

    Why it's wrong here

    Replacing the entire laptop is unnecessary and expensive when only the screen is damaged.

  • Replace the LCD panel.

    Why this is correct

    A cracked LCD panel requires replacement of the panel itself, which is the standard repair.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Replace the display cable.

    Why it's wrong here

    A cracked screen is physical damage, not a cable issue.

  • Use an external monitor permanently.

    Why it's wrong here

    While possible, this is not a repair and is less convenient than replacing the panel.

Common exam traps

Common exam trap: answer the scenario, not the keyword

CompTIA often tests the misconception that a cracked screen always requires a full laptop replacement, when in fact the LCD panel is a modular, replaceable component that is far cheaper to swap out.

Detailed technical explanation

How to think about this question

Modern laptop LCD panels use embedded DisplayPort (eDP) or LVDS interfaces, where the panel itself integrates the timing controller (TCON) and backlight. A physical crack severs the thin-film transistors (TFTs) and liquid crystal alignment in that region, causing dead pixels, lines, and color distortion. Replacing the panel requires matching the exact model number, resolution, and connector type (e.g., 30-pin eDP vs. 40-pin LVDS) to ensure compatibility with the laptop's motherboard and inverter/backlight driver.

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.

TExam Day Tips

  • 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.

What to study next

Got this wrong? Here's your next step.

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FAQ

Questions learners often ask

What does this 220-1201 question test?

Display Devices — This question tests Display Devices — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Replace the LCD panel. — The LCD panel contains the glass substrate and liquid crystal layer that physically cracks, causing localized lines and discoloration. Replacing just the LCD panel (the display assembly) is the most cost-effective solution because it restores full functionality without the expense of a new laptop or the inconvenience of a permanent external monitor. The display cable is unlikely to cause a crack or localized discoloration, as cable damage typically affects the entire screen or causes intermittent issues.

What should I do if I get this 220-1201 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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This 220-1201 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 220-1201 exam.