CompTIA 220-1201 Online Practice Questions and Exam Preparation

CompTIA 220-1201 Online Questions & Answers

• Question 91:

  A technician receives complaints that a network fileshare is slow and now unavailable. The server is powered on and accessible via RDP.

  What should the technician check next?

  A. RAID array status
  B. Data backup integrity
  C. Network connectivity
  D. Available memory
  A. RAID array status

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  Explanation

  A fileshare becoming slow over time and then failing completely strongly suggests storage subsystem degradation, often due to a failing RAID array. CompTIA A+ explains that slow file access is an early sign of a degraded array, and eventual unavailability indicates the array may have failed or entered a critical state.

  Since the technician can still RDP into the server, the OS is functioning, meaning memory is likely not the issue. Network connectivity is sufficient for remote login. Backup integrity does not affect real-time file availability.

  Thus, the next step is to check the RAID array status, which directly controls the server's storage performance and availability precisely what CompTIA identifies as the primary point of failure in such scenarios.

• Question 92:

  Which of the following has the best penetration through physical objects, such as walls?

  A. 2.4GHz
  B. 5GHz
  C. 6GHz
  D. NFC
  A. 2.4GHz

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  Explanation

  2.4GHz Wi-Fi signals have better penetration through walls and other obstacles compared to 5GHz and 6GHz. Lower frequency waves (like 2.4GHz) travel farther and are less absorbed by physical barriers.

  From the CompTIA A+ 220-1101 Official Study Guide, Objective 2.5 -Compare and contrast wireless networking protocols:

  "The 2.4GHz frequency band offers greater range and better penetration through walls and obstacles than higher frequencies like 5GHz and 6GHz. Higher frequencies provide faster speeds but are more easily absorbed by walls."

  NFC (Near Field Communication) is not a Wi-Fi technology and works only over very short distances (a few centimeters).

  Verified Source:

  CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 2: Wireless Networking CompTIA Exam Objectives 220-1101, Domain 2.5

• Question 93:

  While troubleshooting a user's smartphone issue, a technician notices that the display is visible but extremely hard to see.

  Which of the following is the most likely issue?

  A. Inverter
  B. LCD glass
  C. IPS panel
  D. Digitizer
  A. Inverter

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  Explanation

  An inverter failure commonly causes dim screens as it fails to power the backlight, which is crucial for visibility. The LCD glass, IPS panel, and digitizer relate to touch and image display, not brightness. According to CompTIA A+ Core 1 objectives, understanding mobile device display issues, including inverter-related problems, is essential for effective troubleshooting.

• Question 94:

  Which of the following systems most likely contains ECC memory?

  A. A high-end gaming console
  B. A file server
  C. A smartphone
  D. A laptop
  B. A file server

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  Explanation

  Error-Correcting Code (ECC) memory is designed to detect and correct single-bit memory errors, increasing system reliability and data integrity. According to CompTIA Core 1 (220-1201) hardware and memory objectives, ECC memory is most commonly used in servers and enterprise-grade systems where uptime and data accuracy are critical. A file server is responsible for storing, managing, and serving data to many users simultaneously. Memory errors in such systems could lead to data corruption, crashes, or security issues. For this reason, servers frequently use ECC memory in combination with server-class CPUs and motherboards that support error correction.

  High-end gaming consoles prioritize performance and cost efficiency rather than fault tolerance, and they do not use ECC memory. Smartphones rely on low-power mobile RAM without error correction, and laptops typically use non-ECC memory unless they are specialized workstation-class systems, which is not indicated in this question.

  CompTIA emphasizes that ECC memory is associated with mission-critical environments, particularly servers and enterprise systems, making a file server the most appropriate answer.

  References:

  CompTIA A+ Core 1 (220-1201) Official Study Guide - RAM Types, ECC Memory, and Server Hardware

• Question 95:

  Which of the following record types is used to create an alias for a domain?

  A. CNAME
  B. AAAA
  C. TXT
  D. A
  A. CNAME

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  Explanation

  A CNAME (Canonical Name) record is used in DNS to create an alias that maps one domain name to another canonical domain name. According to CompTIA Core 1 (220-1201) DNS objectives, CNAME records allow multiple hostnames to reference the same IP address indirectly by pointing to a single authoritative domain name.

  For example, www.example.com can be configured as a CNAME that points to example.com. When DNS queries are made, the resolver follows the alias until it reaches an A or AAAA record that contains the actual IP address.

  An A record maps a hostname directly to an IPv4 address, while an AAAA record maps a hostname to an IPv6 address. A TXT record is used to store arbitrary text data, commonly for verification, email security (SPF, DKIM), or policy information, not for aliasing.

  CompTIA stresses that CNAME records are specifically intended for aliasing and name redirection within DNS, making them the correct answer.

  References:

  CompTIA A+ Core 1 (220-1201) Official Study Guide - DNS Record Types and Name Resolution

• Question 96:

  A customer reports that a workstation has no internet connectivity. A technician confirms the port is disabled.

  Which of the following is most likely responsible for the issue?

  A. Patch panel
  B. Physical NIC
  C. Managed switch
  D. Stand-alone firewall
  C. Managed switch

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  Explanation

  A managed switch allows an administrator to enable or disable individual ports as part of network security and management. If a port on a managed switch has been disabled, the device connected to that port will lose connectivity, which matches the scenario described.

  References:

  CompTIA A+ Certification Exam Core 1 Objectives -Domain 2.0 Networking -Objective 2.2:Compare and contrast common networking hardware devices.

• Question 97:

  A user connects their laptop to a projector in a conference room. Once connected, the userreports the screen is smaller at the bottom than at the top. The user tries restarting the laptop and then disconnecting and reconnecting the cable to the projector.

  Which of the following should a technician do to resolve the issue?

  A. Replace the HDMI cable.
  B. Power cycle the projector.
  C. Adjust the keystone
  D. Increase the resolution.
  C. Adjust the keystone

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  Explanation

  A distorted image where the screen is not symmetrical (wider at the top or bottom) is typically due to keystone distortion. Adjusting the projector's keystone settings corrects this trapezoidal effect caused by an angled projection.

  References:

  "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 3, page 152.

• Question 98:

  A user reports that the print quality of their desk printer is poor. A technician replaces the ink cartridge, but this does not resolve the issue.

  Which of the following should the technician do next?

  A. Replace the pickup rollers
  B. Clean the printheads
  C. Switch the paper type
  D. Change the ribbon
  B. Clean the printheads

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  Explanation

  If print quality remains poor after replacing the ink cartridge, the next step is to clean the printheads. Printheads can become clogged with dried ink, especially in inkjet printers, causing streaks or faded output.

  From the CompTIA A+ 220-1101 Official Study Guide, Objective 4.3 -Troubleshoot printing problems:

  "Poor print quality after replacing cartridges is commonly caused by clogged or dirty printheads. Use the printer's cleaning cycle or manually clean the printheads as needed."

  Verified Source:

  CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 4: Printer Troubleshooting CompTIA Exam Objectives 220-1101, Domain 4.3

• Question 99:

  A technician is setting up network printers in a new office building. The company wants all of the printers to be configured the same way for consistency. Some of the printers do not have an RJ45 port to connect to the network.

  Which of the following does the technician need to enable so all of the printers can be connected to the network?

  A. Wireless
  B. Authentication
  C. PostScript
  D. USB
  A. Wireless

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  Explanation

  To connect printers without an RJ45 port to the network, the technician needs to enable wireless connectivity. By configuring the printers to connect to the network wirelessly, the company can achieve the desired consistency in printer configuration across the office. This approach allows printers without built-in wired network capabilities to be part of the network, facilitating shared access and remote printing functionalities.

  References:

  CompTIA A+ Core 1 (220-1101) Exam Objectives, Section 2.3 Networking, specifically the information on configuring and troubleshooting wireless connectivity for devices, which includes enabling and securing wireless connections on network printers.

  General understanding of network printer configuration options, including the use of wireless connectivity to integrate printers into a network environment, particularly when wired connections are not feasible.

• Question 100:

  A regularly used laser printer is printing vertical lines on each page_Which of the following should the technician do first?

  A. Lower the printing contrast.
  B. Change the paper type
  C. Install a new fuser.
  D. Replace the toner cartridge
  D. Replace the toner cartridge

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  Explanation

  The answer is D. Replace the toner cartridge.

  Vertical lines on a laser printer output are usually caused by a faulty or empty toner cartridge, a dirty or damaged drum unit, or a clogged or obstructed laser glass. According to the web search results, some possible steps to troubleshoot and resolve this issue are: Check the toner level and replace the toner cartridge if it is low or empty 1. Remove the toner cartridge and inspect the drum unit for any signs of damage, such as scratches, cracks, or toner buildup. Clean the drum unit with a soft cloth or replace it if it is damaged 23.

  Locate the laser glass, which is a narrow strip of glass under the scanner lid or inside the printer. Clean the laser glass with a lint-free cloth moistened with water and remove any dust, dirt, or debris that might block the laser beam 24.