220-1101 practice questions 421–430

1. Question 421 · 624 in bank

   A technician is troubleshooting a user's laptop that randomly turns off. The technician disassembles the laptop and notices that various pieces of small sticker paper within the device have changed color from red to blue. Which of the following is the most likely cause of the laptop's issues?

   • ABroken screen
   • BLiquid damage
   • CSwollen battery
   • DOverheating

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   Answer: B

   Explanation

   The most likely cause of the laptop randomly turning off, coupled with the change in color of sticker paper from red to blue, is: B. Liquid damage. The change in color of the sticker paper indicates that liquid has come into contact with the internal components of the laptop. Liquid damage can cause short circuits and corrosion on electronic components, leading to malfunctions such as random shutdowns.

   Source: Adapted from community discussion — Duke_CT

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2. Question 422 · 624 in bank

   A technician is running a 279ft (85m) network cable between buildings that will share conduit with a large power cable. Which of the following is the most appropriate cable for the technician to use for this project?

   • AFiber
   • BCoaxial
   • CCat 5e
   • DCat 6

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   Answer: A

   Explanation

   For a network cable running alongside a large power cable over a distance of 279ft (85m) between buildings, the most appropriate choice would be: A. Fiber Explanation: Fiber optic cables are less susceptible to electromagnetic interference (EMI) and radio-frequency interference (RFI) compared to copper cables like Cat 5e, Cat 6, or coaxial cables. When running cables in close proximity to a large power cable, there is a higher risk of electromagnetic interference. Fiber optic cables are immune to such interference, making them a suitable choice for ensuring reliable and high-performance data transmission.

   Source: Adapted from community discussion — edwinv

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3. Question 423 · 624 in bank

   A user submitted a ticket to report an issue with a new printer that is no longer accepting new print jobs. The technician verifies the printer is on and notices the printer LCD screen has the following error message: Paper Jam, Jam in Fuser. Which of the following is the MOST efficient next step the technician should complete?

   • AApply a maintenance kit to the printer.
   • BCheck the printer paper path to locate any obstructions.
   • CTurn the printer on and off to see if the error clears.
   • DReplace the fuser.

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   Answer: B

   Explanation

   I've heard from other people on here that this site has to have some wrong answers to avoid legal issues with CompTIA. I would rely solely on highest voted answers only.

   Source: Adapted from community discussion — yutface

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4. Question 424 · 624 in bank

   A user's brand new phone froze while information was being transferred from the old phone. When a technician reset the new phone, it functioned properly when a data transfer was not being attempted. When the technician tested the old phone, it did not appear to have any functionality issues and passed all forms of device testing. Which of the following is the most likely reason the data transfer failed?

   • AThe older phone had a different OS version.
   • BThe older phone had a corrupted OS.
   • CThe older phone had different hardware.
   • DThe older phone utilized different wireless protocols.

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   Answer: A

   Explanation

   Given the scenario described, where the new phone froze during data transfer but functioned properly afterward, and the old phone showed no functionality issues, the most likely reason for the data transfer failure is: B. The older phone had a corrupted OS. If the new phone froze specifically during the data transfer process, it suggests that there might have been some compatibility or corruption issue with the data being transferred from the old phone. While the old phone passed all forms of device testing, it's still possible that there was a corruption or glitch in the operating system that caused the data transfer to fail on the new phone. Therefore, the most probable reason for the data transfer failure is that the older phone had a corrupted operating system.

   Source: Adapted from community discussion — a5f9f74

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5. Question 425 · 624 in bank

   A user reports a workstation is having the following issues: • OS performance is slow • The workstation turns off randomly from time to time • The fans are running loudly Which of the following is most likely the cause?

   • AThe system is infected with malware.
   • BThe CPU is overheating.
   • CThe hard drive is failing.
   • DThe power supply is insufficient.

   Show answer

   Answer: B

   Explanation

   The most likely cause of the reported issues is: B. The CPU is overheating. Explanation: OS performance being slow, the workstation turning off randomly, and loud fan noises are often indicative of overheating issues. When the CPU (Central Processing Unit) overheats, it can lead to reduced system performance as the processor throttles itself to prevent damage. Additionally, the system may shut down unexpectedly to prevent heat-related damage. Loud fan noises could indicate that the system's cooling mechanism is working hard to dissipate heat.

   Source: Adapted from community discussion — edwinv

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6. Question 426 · 624 in bank

   A user recently connected multiple monitors to a dock and would like to use the monitors as an extended laptop display. Which of the following connection methods would be best to use to connect the dock to the laptop?

   • ANFC
   • BLightning
   • CBluetooth
   • DUSB-C

   Show answer

   Answer: D

   Explanation

   To connect a dock with multiple monitors to a laptop for use as an extended display, the best connection method to use is: D. USB-C. USB-C ports support high-speed data transfer and video output, making them ideal for connecting docks that can drive multiple monitors. Many modern laptops come with USB-C ports that support video output, allowing users to connect to external displays through a single cable.

   Source: Adapted from community discussion — Duke_CT

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7. Question 427 · 624 in bank

   Which of the following display types is available for laptops?

   • AOLED
   • BCRT
   • CDLP
   • DPlasma

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   Answer: A

   Explanation

   The display type that is commonly available for laptops is: A. OLED (Organic Light-Emitting Diode). OLED displays offer high contrast ratios, wide viewing angles, and vibrant colors, making them popular choices for laptops due to their thin and lightweight design, energy efficiency, and excellent picture quality.

   Source: Adapted from community discussion — Duke_CT

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8. Question 428 · 624 in bank

   A technician is configuring the BIOS of a new workstation. The machine will be used for data analytics, and the technician would like to maximize the performance of the CPU. Which of the following BIOS settings should the technician verify?

   • AVirtualization technology
   • BGPU settings
   • CBIOS update
   • DHyperthreading

   Show answer

   Answer: D

   Explanation

   To maximize the performance of the CPU for data analytics on a new workstation, the technician should verify and potentially enable: D. Hyperthreading. Hyperthreading is a technology that allows a single physical CPU core to behave like two logical cores, enabling better utilization of CPU resources and potentially improving performance for multithreaded workloads such as data analytics. Therefore, the correct answer is:

   Source: Adapted from community discussion — Duke_CT

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9. Question 429 · 624 in bank

   A laser printer, which is located in a large office, has a leaky toner cartridge. Some toner spilled into the printer when the cartridge was removed. Which of the following is the best way to clean up the toner?

   • AMagnetic duster
   • BESD-safe vacuum
   • CCompressed air
   • DDamp cloth

   Show answer

   Answer: B

   Explanation

   B. ESD-safe vacuum When toner spills inside a printer, it's crucial to clean it up properly to prevent damage to the printer and ensure proper functioning. An ESD-safe vacuum is the best option for cleaning up toner spills because it's specifically designed to safely remove toner particles without generating static electricity that could damage sensitive printer components. Using a vacuum with an ESD-safe nozzle attachment helps to effectively remove toner particles without spreading them further or causing damage to the printer.

   Source: Adapted from community discussion — huffitypuffity

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10. Question 430 · 624 in bank

    A technician is installing a WAP in the company break room. The new access point should have a rating of higher than 50Mbps and minimal range to avoid interference with other access points. Which of the following 802.11 standards should the technician select?

    • Aac
    • Bb
    • Cg
    • Dn

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    Answer: A

    Explanation

    It should be C. IMO. C. g Explanation: To meet the requirements of having a rating higher than 50 Mbps and minimal range to avoid interference with other access points, the 802.11g standard is appropriate: 802.11g operates at 2.4 GHz and has a maximum theoretical speed of 54 Mbps, which meets the requirement of being higher than 50 Mbps. 802.11g also has a shorter range compared to some other standards like 802.11n and 802.11ac, which helps in minimizing interference with other access points. Analysis of Other Options: A. ac: 802.11ac operates primarily at 5 GHz with much higher speeds, well over 1 Gbps in ideal conditions. While it exceeds the speed requirement, its range can be longer, and it's more suited for environments needing high throughput, potentially causing more interference. B. b: 802.11b operates at 2.4 GHz with a maximum theoretical speed of 11 Mbps, which is below the required 50 Mbps. D. n: 802.11n can operate at both 2.4 GHz and 5 GHz, with speeds up to 600 Mbps. While it meets the speed requirement, it typically has a longer range, which might not be ideal if the goal is to avoid interference with other access points.

    Source: Adapted from community discussion — max12553

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220-1101 practice, question 421. 624 questions available.