CompTIA 220-1101 Online Practice Questions and Exam Preparation

CompTIA 220-1101 Online Questions & Answers

• Question 561:

  An engineer is building a workstation that requires the following components:

  An ATX motherboard A multi-core processor A dedicated graphics solution A SATA hard drive DDR4 memory

  Which of the following power supply specifications would meet the workstation criteria?

  A. 12V, 500W output
  B. SFX, 18-pin connector
  C. DC input
  D. Type A socket
  A. 12V, 500W output

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  Explanation

  References

  3: What Power Supply Do I Have: Quick Ways to Find Your PSU Specs

  4: Power Supply 101: A Reference Of Specifications

  5: How to Choose the Right Power Supply for Your PC

  6: SFX vs ATX PSU: What's the Difference? AC vs DC Power Supply: What's the Difference? AC power plugs and sockets - Wikipedia

• Question 562:

  Which of the following cables should be used to terminate ST connectors on each end?

  A. Optical fiber
  B. Coaxial
  C. Shielded twisted pair
  D. HDMI
  A. Optical fiber

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  Explanation

  Optical fiber is the type of cable that should be used to terminate ST connectors on each end. ST connectors are commonly used for fiber optic cables, which transmit data using light pulses. Coaxial, shielded twisted pair, and HDMI are not types of cables that use ST connectors, but different types of connectors and transmission methods.

• Question 563:

  Which of the following port numbers is used for a file transfer?

  A. 21
  B. 53
  C. 68
  D. 389
  A. 21

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  Explanation

  Port 21 is used by FTP (File Transfer Protocol) for file transfers. Port 53 is for DNS, port 68 is for DHCP, and port 389 is for LDAP. Understanding standard network ports is essential in CompTIA A+ Core 1 objectives, especially in networking and troubleshooting scenarios.

• Question 564:

  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?

  A. Virtualization technology
  B. GPU settings
  C. BIOS update
  D. Hyperthreading
  D. Hyperthreading

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  Explanation

  Hyperthreading is a feature of some CPUs that allows them to execute two threads (sequences of instructions) simultaneously on each core. Hyperthreading can improve the performance of CPU-intensive tasks, such as data analytics, by increasing the utilization of CPU resources and reducing idle time. The technician should verify that hyperthreading is enabled in the BIOS settings of the workstation.

• Question 565:

  A user's desktop computer slows down after a few minutes of use, and the fans alternate between silent and very loud. Which of the following is MOST likely failing, therefore causing these symptoms?

  A. CPU fan
  B. Memory
  C. Power supply
  D. Hard drive
  A. CPU fan

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  Explanation

  A CPU fan is a component that cools down the CPU, which is the main processor of the computer. If the CPU fan is failing, it can cause the computer to slow down and the fans to alternate between silent and very loud12. This is because the CPU fan cannot maintain a consistent speed and airflow to keep the CPU at a safe temperature. When the CPU gets too hot, it throttles its performance to avoid overheating, which results in a slower computer. The other fans in the computer also try to compensate for the lack of cooling from the CPU fan by spinning faster and louder2.

• Question 566:

  Which of the following ports allows for secure communications?

  A. 20
  B. 22
  C. 23
  D. 25
  B. 22

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  Explanation

  The correct answer is

  B. 22. Port 22 is the default port for SSH (Secure Shell), a protocol that allows secure and encrypted remote login and command execution over a network. SSH uses public key cryptography to authenticate the client and the server, and to encrypt the data exchanged between them. SSH can be accessed through different ports, depending on the configuration of the server and the client. The default port for SSH is 22, but it can be changed to any other port for security reasons1. Port 20 is the default port for FTP (File Transfer Protocol) data transfer, a protocol that allows file transfer between a client and a server over a network. FTP uses two ports: one for data transfer (port 20) and one for control commands (port 21). FTP does not provide encryption or authentication, and it is vulnerable to various attacks, such as packet sniffing, spoofing, or brute force. To secure FTP connections, protocols such as FTPS (FTP over SSL) or SFTP (SSH File Transfer Protocol) can be used2. Port 23 is the default port for Telnet, a protocol that allows remote login and command execution over a network. Telnet does not provide encryption or authentication, and it sends data in plain text, which can be easily intercepted or modified by attackers. Telnet is considered obsolete and insecure, and it should be replaced by SSH or other secure protocols3. Port 25 is the default port for SMTP (Simple Mail Transfer Protocol), a protocol that allows sending and receiving email messages over a network. SMTP does not provide encryption or authentication, and it can be exploited by spammers or hackers to send malicious or unwanted emails. To secure SMTP connections, protocols such as SMTPS (SMTP over SSL) or STARTTLS (Transport Layer Security) can be used. Therefore, port 22 is the only port that allows for secure communications by default, as it uses SSH protocol. For more information about ports and their security, you can refer to the following web search results: How to secure your TCP/IP ports, What is an SSL port? A technical guide for HTTPS, HTTPS Port: What It Is, How to Use It, and More (2023).

• Question 567:

  After a technician replaced a printer's ink cartridges, all the print jobs contain shadowing. Which of the following should the technician do first?

  A. Reseat the new ink cartridges.
  B. Run the printer's alignment process.
  C. Replace the fuser assembly.
  D. Install the maintenance kit.
  B. Run the printer's alignment process.

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  Explanation

  Running the printer's alignment process is the first step that a technician should do to fix the shadowing problem on the printouts. Shadowing is a print quality issue that occurs when the printer prints a faint duplicate image of the original text or graphics, usually slightly offset from the original position. This can be caused by a misalignment of the printhead, which is the part of the printer that sprays ink onto the paper. The printer's alignment process is a procedure that adjusts the position and angle of the printhead to ensure that the ink is applied accurately and evenly on the paper. The printer's alignment process can be performed from the printer's menu, the printer's software, or the printer's maintenance tool, depending on the model and type of the printer. The other options are not the best solutions for this problem. Reseating the new ink cartridges may not solve the shadowing issue, unless the cartridges are not properly installed or recognized by the printer. However, this is unlikely to be the case, as the printer would usually display an error message or refuse to print if the cartridges are not compatible or inserted correctly. Replacing the fuser assembly or installing the maintenance kit are more drastic and expensive measures that are usually done when the printer has more serious problems, such as paper jams, smearing, streaking, or fading. The fuser assembly is the part of the printer that heats and melts the toner onto the paper, and the maintenance kit is a set of components that need to be replaced periodically to keep the printer in good condition. These parts are not directly related to the shadowing issue, and replacing them may not fix the problem.

  References: CompTIA A+ Certification Exam Core 1 Objectives1 The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook2 How to Fix Shadow Printing on My Canon Printer?3 Fixing A Printer That Creates Shadow Images On Printouts4

• Question 568:

  A technician is setting up a projector for a videoconferencing system. The laptop that the technician is using is set to the correct resolution. The projector is receiving a signal, but the image is distorted. Which of the following most likely explains the issue?

  A. The projector's aspect ratio is set incorrectly.
  B. The laptop's video card has failed.
  C. The projector's bulb is burned out.
  D. The display brightness needs to be adjusted.
  A. The projector's aspect ratio is set incorrectly.

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  Explanation

  The most likely explanation for the distorted image on the projector is that the projector's aspect ratio is set incorrectly. The aspect ratio is the ratio of the width to the height of the image, and it affects how the image is displayed on the screen.

  If the aspect ratio of the projector does not match the aspect ratio of the laptop, the image may appear stretched, squashed, cropped, or letterboxed.

  To fix the distorted image, the technician should follow these steps:

  Check the aspect ratio of the laptop and the projector. The aspect ratio of the laptop can be found in the display settings of the operating system, such as Windows or Mac OS. The aspect ratio of the projector can be found in the user manual

  or the on-screen menu of the projector. Common aspect ratios are 4:3,

  16:9, and 16:10.

  Adjust the aspect ratio of the projector to match the aspect ratio of the laptop. The technician can use the remote control or the buttons on the projector to access the on-screen menu and select the appropriate aspect ratio option. Some

  projectors may have a dedicated aspect ratio button on the remote control or the projector itself.

  Verify that the image is displayed correctly on the screen. The technician can use the zoom, focus, or keystone buttons on the projector or the remote control to fine- tune the image quality and alignment.

  References:

  How to Fix Projector Display Problems - Projectors Tab1 Correcting Distorted Projector Images - Projector Repair World Hyd2 How to Adjust the Aspect Ratio on a Projector - Lifewire

• Question 569:

  A technician has been called into a conference room to help with a video call setup. The user is unable to get the laptop screen to mirror to the in-room television. The technician confirms that the appropriate HDMI cable is plugged into the user's computer, and the TV has a blinking logo on the screen.

  Which of the following is most likely causing the issue?

  A. The user's laptop does not support screen mirroring.
  B. The television does not support screen mirroring.
  C. The wrong input is selected on the television.
  D. The user does not have Bluetooth enabled on the laptop.
  E. The television has a defective A/C adapter cable.
  C. The wrong input is selected on the television.

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  Explanation

  When a laptop screen fails to mirror to a television despite being correctly connected via an HDMI cable, the most likely issue is that the television is set to the wrong input source. Modern televisions have multiple input options (e.g., HDMI 1, HDMI 2, AV), and selecting the correct input that matches the port the HDMI cable is connected to is critical for displaying the laptop's screen. The blinking logo on the TV screen suggests the TV is operational but not receiving a signal from the selected input source. Changing the TV's input to the appropriate HDMI port should resolve the issue and allow the laptop screen to mirror onto the TV.

  References: Hardware 1101.docx, "Connecting External Displays" section.

• Question 570:

  A technician needs to assign an IP address to a Windows PC, but a network connection is unavailable.

  Which of the following tools would be best for the technician to use?

  A. DHCP
  B. TFTP
  C. APIPA
  D. DNS
  C. APIPA

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  Explanation

  Automatic Private IP Addressing (APIPA) allows a Windows PC to automatically assign itself an IP address in the range of 169.254.0.1 to 169.254.255.254 when it's unable to obtain an IP address from a DHCP server. This feature is particularly useful in situations where the PC cannot connect to the network or when DHCP services are unavailable. While APIPA addresses are not routable and thus not suited for large networks, they enable basic networking functionality for small ad-hoc or local networks.