CompTIA 220-1201 Online Practice Questions and Exam Preparation

CompTIA 220-1201 Online Questions & Answers

• Question 411:

  Which of the following is the primary function of a DNS service?

  A. To dynamically assign network addresses to hosts
  B. To translate domain names to IP addresses
  C. To authenticate users to remote servers
  D. To serve files over the network
  B. To translate domain names to IP addresses

• Question 412:

  A technician is diagnosing several device issues reported by employees.

  INSTRUCTIONS

  Click on each device to review the issue. Then select the appropriate issue and solution from the drop-down menu. Each option may be used more than once.

  

  

• Question 413:

  A user has two SSDs of the same size in their PC. The user wants to configure both SSDs to have a copy of all data so there will be no data loss if one drive fails.

  Which of the following is this an example of?

  A. RAID 0
  B. RAID 1
  C. RAID 5
  D. RAID 10
  B. RAID 1

  ---

  Explanation

  This scenario describes disk mirroring, which is RAID 1. With RAID 1, the same data is written to two drives simultaneously, creating an exact duplicate on each SSD. If one drive fails, the system can continue to operate using the remaining drive with no loss of data, which directly matches the requirement "no data loss if one drive fails." RAID 1 is commonly used when fault tolerance and data redundancy are the priority. A key trade-off is capacity: because the data is duplicated, the usable storage is essentially the size of one of the drives (two 1TB drives in RAID 1 provide about 1TB usable). Performance can vary: read performance may improve slightly in some implementations, but write performance is generally similar to a single drive because data must be written to both drives.

  RAID 0 is striping with no redundancy, so a single drive failure causes total data loss. RAID 5 requires at least three drives and uses parity. RAID 10 requires at least four drives and combines mirroring and striping.

  Therefore, the correct answer is RAID 1.

• Question 414:

  A user receives a warning message on their tablet that states, " You are locked out due to unlawful activity." The user was shopping for clothes online.

  Which of the following should a technician try first?

  A. Force close all running applications on the device
  B. Replace the tablet with a newer device
  C. Reset the device to default settings
  D. Restart the device
  D. Restart the device

  ---

  Explanation

  The correct answer is D. Restart the device.

  According to CompTIA A+ Core 1 220-1201 objectives under Mobile Devices and Security:

  Warning messages like this can be caused by malicious pop-ups or temporary software glitches. Restarting the device is the safest and quickest first step to clear temporary processes, refresh the system, and remove transient malware or pop-up overlays.

  This approach addresses the issue without risking data loss or unnecessary downtime.

  Why the other options are incorrect:

  A. Force close all running applications: May help if a specific app is causing the pop-up, but restarting achieves this more reliably and fully resets background processes.

  B. Replace the tablet with a newer device: Unnecessary and costly for a potentially temporary software issue.

  C. Reset the device to default settings: This is a last-resort action, as it erases personal data and settings; it is not the first step.

  References:

  CompTIA A+ Core 1 (220-1201) Exam Objectives - Mobile Devices: "Given a scenario, troubleshoot mobile device issues including pop-ups, malware warnings, and temporary system glitches." Mike Meyers' CompTIA A+ Certification Guide, 13th Edition, Chapter on Mobile Device Troubleshooting.

• Question 415:

  Which of the following describes the function of an injector?

  A. To provide only data connectivity
  B. To supply power across a cable
  C. To improve wireless performance
  D. To extend a network connection
  B. To supply power across a cable

  ---

  Explanation

  A PoE injector is used to add power to an Ethernet cable, enabling the cable to deliver both power and data. This is crucial when connecting to PoE-enabled devices like IP cameras or wireless access points that are far from power outlets.

  References:

  "CompTIA A+ Complete Practice Tests" by Jeff T. Parker - Chapter 10,

• Question 416:

  A user on the edge of a building reports slow Wi-Fi and intermittent drops.

  Which action will solve the issue?

  A. Enable the 5GHz band
  B. Run ipconfig /flushdns
  C. Upgrade laptop to Wi-Fi 6 NIC
  D. Install additional wireless APs around the location
  D. Install additional wireless APs around the location

  ---

  Explanation

  Wireless coverage issues at the physical edges of a building are typically caused by weak RF signal strength. The CompTIA A+ study material says the best solution is to add additional wireless access points (APs) or implement a mesh system to extend coverage and eliminate dead zones.

  Enabling 5GHz often worsens the issue because 5GHz has shorter range. Wi-Fi 6 NIC upgrades improve performance but do not increase signal reach. Flushing DNS does not affect wireless coverage.

  Installing more APs ensures stronger coverage, better signal-to-noise ratio, and stable connectivity aligning with CompTIA's wireless troubleshooting best practices.

• Question 417:

  A user wants to build a computer with a high-end CPU, plenty of RAM, and a high-end graphics card for online gaming. The user wants to verify that the graphics card is compatible with the motherboard.

  Which of the following connection types would the user MOST likely utilize to connect the video card to the motherboard?

  A. PCle
  B. ISA
  C. AGP
  D. USB
  A. PCle

• Question 418:

  Which of the following DNS records displays the destination of incoming email on a domain?

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

  ---

  Explanation

  DNS contains different record types that serve specific purposes. To determine where incoming email should be delivered for a particular domain, DNS uses an MX (Mail Exchange) record. CompTIA A+ identifies MX records as essential for routing mail from external senders to the appropriate mail server assigned to a domain.

  The MX record specifies:

  The mail server hostname responsible for receiving messages

  Priority values, which determine which server to try first

  The server destination for SMTP traffic

  When someone sends an email, the sending mail server queries DNS to find the MX record for the recipient's domain. The SMTP server then relays the email to the server listed in that record.

  CNAME is used for aliasing hostnames, TXT is used for verification/security (SPF, DKIM), and AAAA maps a hostname to an IPv6 address. None of these direct email delivery. Only MX records are designed to instruct mail servers where to deliver incoming email.

  Thus, the correct answer is MX.

• Question 419:

  A user only has access to basic printer functions. A technician notices that the advanced printer features are missing.

  Which of the following actions will fix this issue?

  A. Modifying the printer settings and rebooting the printer
  B. Installing the drivers from the printer ' s manufacturer
  C. Restarting the OS and attempting to reprint the document
  D. Applying the OS-provided patches for the printer
  B. Installing the drivers from the printer ' s manufacturer

  ---

  Explanation

  When a printer only provides basic functionality (such as simple printing without duplexing, color management, stapling, or finishing options), this typically indicates that the system is using a generic or basic printer driver rather than the full-featured driver from the printer manufacturer. According to CompTIA Core 1 (220-1201) printing and troubleshooting objectives, advanced printer features are enabled through manufacturer-specific drivers, which expose all hardware capabilities to the operating system.

  Operating systems often install default or class drivers automatically, especially when printers are connected via USB or discovered on a network. While these drivers allow basic printing, they do not include proprietary features such as high-resolution settings, tray selection, finishing units, or secure printing options. Installing the correct driver package from the printer manufacturer ensures full compatibility and unlocks advanced functionality.

  Restarting the OS or modifying printer settings will not add missing features if the correct driver is not installed. OS-provided patches are designed to fix bugs or compatibility issues, not to enable vendor-specific printer capabilities.

  CompTIA explicitly emphasizes verifying and installing manufacturer-recommended drivers as a key troubleshooting step when printer features are missing or limited.

  References:

  CompTIA A+ Core 1 (220-1201) Official Study Guide - Printer Installation, Drivers, and Troubleshooting

• Question 420:

  A SOHO user cannot connect to the internet. Their configuration shows:

  IP: 192.168.223.15

  Mask: 255.255.255.0

  Gateway: 192.168.233.1

  DNS: 8.8.8.8, 4.2.2.1, 4.2.2.2

  Baseline documentation shows valid subnet range: 192.168.200.0?92.168.232.255.

  Which setting must be changed?

  A. Tertiary DNS
  B. Secondary DNS
  C. Primary DNS
  D. IP Address
  E. Gateway
  F. Subnet mask
  E. Gateway

  ---

  Explanation

  The baseline documentation says the valid network range ends at 192.168.232.255, but the user's gateway is 192.168.233.1, which is outside the permitted network range. CompTIA A+ emphasizes that devices must have a gateway inside their own subnet.

  Given a mask of 255.255.255.0, the user's subnet is 192.168.223.x, so the gateway must be in 192.168.223.x, not 192.168.233.x.

  DNS settings are public and acceptable. The IP address and subnet mask are valid within the documented address space.

  Therefore, the incorrect setting is the gateway, which prevents external routing. Correcting it resolves the connection issue, matching CompTIA's routing and TCP/IP troubleshooting procedures.