CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 1041:

  A user reports limited or no connectivity on a laptop. A technician runs ipconf ig /all with the following result:

  

  Which of the following is the MOST likely cause of this issue?

  A. DHCP failure
  B. ARP cache
  C. DNS resolution
  D. Duplicate IP address
  A. DHCP failure

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  Explanation

• Question 1042:

  A user called the help desk to report an issue with a laptop. Recently, the user has been unable to click the buttons on the track pad or press some keys on the keyboard. The technician inspector the laptop but does not find any physical damage caused by the user.

  Which of the following is the MOST likely cause of the issue?

  A. Damaged digitizer
  B. Swollen battery
  C. Distended capacitors
  D. Failed accelerometer
  B. Swollen battery

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  Explanation

  The most likely cause of the issue is that the laptop has a swollen battery, which is a condition where the battery expands due to gas buildup inside the cells. A swollen battery can cause physical damage to the laptop, such as pushing against the track pad or keyboard and preventing them from functioning properly. The technician should inspect the battery and replace it if it is swollen. A damaged digitizer is not the cause of the issue, as the digitizer is a component that converts touch input into digital signals, and it does not affect the track pad or keyboard. Distended capacitors are not the cause either, as capacitors are electronic components that store electric charge, and they do not affect the track pad or keyboard. A failed accelerometer is not the cause as well, as an accelerometer is a sensor that measures acceleration, and it does not affect the track pad or keyboard.

  References: https://www.comptia.org/blog/what-is-a-laptop-battery

• Question 1043:

  Which of the following is the MAXIMUM power PoE+ provides?

  A. 15.4W
  B. 30W
  C. 60W
  D. 95W
  B. 30W

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  Explanation

  The earliest PoE switches from a few years ago generated 15 Watts per port (IEEE 802.3af). Today, most use the PoE+ standard (IEEE 802.3at), which generates up to 30 Watts per port. That's plenty for most devices that people want to connect

• Question 1044:

  SIMULATION

  A user reports poor performance on the application server.

  INSTRUCTIONS:

  Click on Server 1 and Server 2, and review the information presented in each chart to determine which drives need to be replaced.

  Select the appropriate replacement drive that should be used for the least performance degradation to the server.

  If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

  

  A. Check the answer in explanation.
  B. PlaceHolder.
  C. PlaceHolder.
  D. PlaceHolder.
  A. Check the answer in explanation.

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  Explanation

  The degraded status on Server 2 indicates a RAID-5 issue, typically due to a failed or failing drive. In RAID-5 configurations, when one drive fails, the system can still operate but with reduced performance as parity data is used to rebuild missing data on-the-fly.

  Recommended Replacement Drive:

  To minimize performance degradation, the replacement drive should be a SAS HDD with the same specifications (64KB stripe size, no read-ahead, and write-back policy). Matching the configuration exactly ensures seamless integration and optimizes recovery speed in the RAID-5 array.

  In RAID-5, degraded performance is expected when one drive fails, as parity data is used to rebuild missing information during each read/write process. Replacing the failed drive restores the RAID array to optimal status, reducing the load on existing drives and returning the system to normal read/write performance. The write-back policy and disabled disk cache settings are designed to reduce latency and increase efficiency, which is essential for handling real-time applications.

• Question 1045:

  A laptop is connected to a conference room projector in extended display mode. The desktop icons appear normal on the laptop, but are disproportionate and illegible on the projector screen. Which of the following should the technician check?

  A. Video resolution
  B. HDMI connection
  C. Keystone
  D. Focus
  A. Video resolution

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  Explanation

• Question 1046:

  While using a popular videoconferencing program, the user selects a webcam, but the software is unable to open the webcam. The webcam was working the previous day. Which of the following should be done to address this issue?

  A. Close other video software and retry.
  B. Adjust the conference software to a compatible resolution.
  C. Switch the video from the webcam to "conference" mode.
  D. Reseat or replace the webcam.
  A. Close other video software and retry.

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  Explanation

  One possible solution to address the issue of a webcam not working with a videoconferencing program is to close other video software and retry (option A). It's possible that another video software program is currently using the webcam and preventing the videoconferencing program from accessing it. By closing any other video software that may be running on the computer, the user can ensure that the webcam is available for use by the videoconferencing program.

• Question 1047:

  An application developer formats and reconfigures a development PC after every application test is complete. Which of the following is the best way to improve the efficiency of this process?

  A. Installing an SSD
  B. Implementing a sandbox
  C. Disabling hyperthreading
  D. Enabling hardware acceleration
  B. Implementing a sandbox

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  Explanation

  The best way to improve the efficiency of the process of formatting and reconfiguring a development PC after every application test is complete is to implement a sandbox. A sandbox is a virtual environment that isolates the application from

  the rest of the system, allowing the developer to test the application without affecting the main operating system, files, or settings. A sandbox can also be easily reset, deleted, or duplicated, saving the time and effort of formatting and

  reconfiguring the PC. A sandbox can also provide security benefits, such as preventing malware or bugs from spreading to the system or the network. Other options, such as installing an SSD, disabling hyperthreading, or enabling hardware

  acceleration, may improve the performance of the PC, but they do not address the issue of formatting and reconfiguring the PC after each test. An SSD (solid state drive) is a storage device that uses flash memory instead of spinning disks,

  and it can offer faster data access, lower power consumption, and less noise and heat. Hyperthreading is a feature of some CPUs (central processing units) that allows each core to run two threads simultaneously, increasing the multitasking

  and parallel processing capabilities of the PC. Hardware acceleration is a technique that uses the GPU (graphics processing unit) or other specialized hardware to perform some tasks faster than the CPU, such as rendering graphics, video,

  or audio.

  References:

  What is a Sandbox? | How Does a Sandbox Work? | Avast1 What is a Sandbox Environment? | Definition and FAQs2 How to Use a Sandbox to Test Software - Lifewire3 What is a Sandbox and How to Use One - Norton4 What is a

  Sandbox?

  -Definition from Techopedia5

• Question 1048:

  After a technician installs a new motherboard, the computer will not start and fails POST. The technician verifies the power supply is functioning as expected, and the CPU is installed correctly. Which of the following steps should the technician complete next?

  A. Flash the BIOS.
  B. Check the CMOS battery.
  C. Reseat the RAM.
  D. Reinstall the old motherboard.
  C. Reseat the RAM.

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  Explanation

• Question 1049:

  A salesperson is unable to reach the internet from a home office PC. A support technician wants to verify the router is receiving a valid public IP address.

  Which of the Wowing is a valid public IP address in this scenario?

  A. 10.254.128.11
  B. 66.157.195.20
  C. 172.16.0.30
  D. 192.168 1.50
  B. 66.157.195.20

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  Explanation

  A valid public IP address must fall outside the private IP address ranges:

  10.0.0.0 to 10.255.255.255

  172.16.0.0 to 172.31.255.255

  192.168.0.0 to 192.168.255.255

  66.157.195.20 is outside these ranges, making it a public IP address. Why Not A, C, D: These IPs fall within private IP address ranges.

  Core 1 (220-1101), Section 2.6, IP addressing.

• Question 1050:

  Which of the following cable types should be used to connect a cable modem to a SOHO router?

  A. Thunderbolt
  B. Coaxial
  C. USB
  D. Ethernet
  D. Ethernet

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  Explanation