- (Topic 1)
Which of the following DNS records would an administrator change to redirect email flow?
Correct Answer:
A
Comprehensive and Detailed In-Depth Explanation:
AnMX (Mail Exchange)record defineswhich mail servers are responsible for receiving emailfor a domain. If you want to change or redirect email traffic, theMX recordmust be updated with the correct server information.
✑ Option B (TXT):Stores text-based info — used for SPF, DKIM, etc.
✑ Option C (SPF):Part of email authentication stored in a TXT record; doesn??t redirect traffic.
✑ Option D (CNAME):Alias for another domain name — not used for email routing. CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 2.4: Compare and contrast common networking hardware.
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- (Topic 1)
A help desk technician needs to work on a high-volume printer. Users have reported occasional paper jams and smudges appearing on printed documents. Which of the following steps should the technician do next to address these issues?
Correct Answer:
B
Comprehensive and Detailed In-Depth Explanation:
Paper jams and smudging in high-volume printers are often caused bydirty or worn rollers. Rollers are responsible for feeding the paper through the printer. Over time, they accumulate dust, toner residue, or wear out, resulting in misfeeds or jams. Cleaning or replacing them typically resolves this issue.
✑ Option A (Factory reset):A full reset does not directly address mechanical issues
like dirty rollers or smudging. It??s a last resort and more relevant to configuration or software-related issues.
✑ Option C (Change toner cartridges):While toner quality can affect print quality, it
won??t usually cause jams or widespread smudging unless the cartridge is leaking
— which is less likely across multiple users.
✑ Option D (Replace the fuser):A damaged fuser could cause smudging, but this is
typically after extensive use and is not the first thing to check. Fuser issues also usually present more persistent, uniform smudges.
CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 3.7: Given a scenario, troubleshoot common printer problems.
- (Topic 1)
A user prints a job from a laser printer. The user wipes the page, and the words and images come off of it. The technician replaces the toner cartridge, but the issue persists. Which of the following components should the technician replace next?
Correct Answer:
A
Comprehensive and Detailed In-Depth Explanation:
Inlaser printers, thefuser unitis responsible formelting the toner onto the paperusing heat and pressure. If the toner rubs off easily, it's a clear sign thefuser is failing or not heating properly. Replacing the fuser will ensure the toner bonds correctly to the paper.
✑ Option B (Drum):Transfers the image, but doesn't fuse the toner.
✑ Option C (Developer roller):Applies toner to the drum — wouldn??t cause toner to rub off.
✑ Option D (Discharge lamp):Prepares the drum for a new image; not related to
toner adhesion.
CompTIA A+ Core 1 Exam Objective Reference:
✑ Objective 3.7: Given a scenario, troubleshoot common printer problems.
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- (Topic 1)
A technician is replacing a failed power supply in a ten-year-old computer When installing the customer-provided power supply, the technician discovers the ATX connector would not plug into the motherboard. The customer wants a cost-effective solution. Which of the following should the technician do next?
Correct Answer:
D
Older motherboards use 20-pin connectors, while newer power supplies use 24-pin connectors. An adapter resolves the compatibility issue cost-effectively.
Why Not A (Adjust the input voltage): Input voltage adjustment is unrelated to connector compatibility.
Why Not B (Install a modular power supply): While modular supplies are versatile, this doesn??t address the connector issue directly.
Why Not C (Rebuild the failed power supply): Rebuilding is costly and complex compared to using an adapter.
CompTIA A+ Exam Reference: Core 1 (220-1201), Section 3.4, power supply compatibility.
- (Topic 1)
A customer reports a problem connecting to network resources. After asking open-ended questions, the technician determines the issue likely exists on the remote server. Which of the following should the technician do next?
Correct Answer:
B
After determining the issue is likely on the remote server, the technician should test the theory to confirm the root cause before proceeding.
Why Not A (Document the findings): Documentation comes after confirming the issue. Why Not C (Gather information): Information gathering is already completed.
Why Not D (Establish a plan of action): This is done after confirming the issue. CompTIA A+ Exam Reference: Core 2 (220-1102), Section 3.1, troubleshooting methodology.
