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.”
220-1101 Display Devices Practice Question
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?
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.
A cracked LCD panel requires replacement of the entire screen assembly, not just the glass. Replacing the whole LCD panel is the standard and most cost-effective repair for this type of physical damage.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
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.
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: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
OSPF neighbours must agree on key parameters.
Router ID selection can affect neighbour relationships and LSDB output.
OSPF cost influences the preferred path.
A route can appear in OSPF information but not become the installed route.
TExam Day Tips
→Check area mismatch first when OSPF adjacency fails.
→Review passive interfaces when a network is advertised but no neighbour forms.
→Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
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. OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough. 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.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 220-1201 OSPF questions on adjacency and route selection.
Display Devices — This question tests Display Devices — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: Replace the LCD panel. — A cracked LCD panel requires replacement of the entire screen assembly, not just the glass. Replacing the whole LCD panel is the standard and most cost-effective repair for this type of physical damage.
What should I do if I get this 220-1201 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 220-1201 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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Question Discussion
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