CompTIA 220-1201 Online Practice Questions and Exam Preparation

CompTIA 220-1201 Online Questions & Answers

• Question 101:

  A user is unable to access secure applications on their tablet when working from home a couple days per week, but the applications work when in the office.

  Which of the following services most likely needs to be reconfigured to allow for remote work?

  A. Global Positioning System
  B. Mobile device management
  C. Wi-Fi Protected Access
  D. Near-field communication
  B. Mobile device management

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  Explanation

  Mobile Device Management (MDM) software often controls access to corporate resources based onlocation, network, or VPN status. If the MDM is not configured to allow access from outside the office or via home networks, the apps may be blocked. This is the most probable cause if apps work only on-premises.

  Option A:GPS is used for location services, not access control.

  Option C:WPA is a Wi-Fi security protocol, not related to access restrictions.

  Option D:NFC enables close-range communication -- irrelevant to app access.

  References:

  Objective 1.6: Given a scenario, configure basic mobile device network connectivity and application support.

• Question 102:

  Which of the following is the best to use to stream real-time video from a network camera?

  A. UDP
  B. TCP
  C. FTP
  D. RDP
  A. UDP

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  Explanation

  UDP (User Datagram Protocol) is the preferred protocol for real-time video streaming, such as feeds from network cameras. According to CompTIA Core 1 (220-1201) networking protocols objectives, UDP prioritizes speed and low latency over guaranteed delivery, making it ideal for time-sensitive applications. Real-time video streaming can tolerate occasional packet loss, but it cannot tolerate delays caused by retransmissions. UDP does not perform error checking or packet retransmission, which reduces overhead and ensures smooth, continuous playback. This is critical for live video feeds where delayed packets are useless.

  TCP, while reliable, introduces latency due to acknowledgments and retransmissions, making it unsuitable for real-time streaming. FTP is a file transfer protocol and does not support live streaming. RDP is used for remote desktop access and is not designed for transmitting continuous real-time video streams from cameras. CompTIA emphasizes understanding protocol selection based on application requirements, particularly distinguishing between reliability and performance needs. For live video, UDP is the optimal choice.

  References:

  CompTIA A+ Core 1 (220-1201) Official Study Guide - Network Protocols and Use Cases

• Question 103:

  A shared printer experiences an outage when users submit numerous print jobs at the same time.

  Which of the following will an engineer most likely do after verifying network connectivity?

  A. Reboot the server.
  B. Reinstall the printer drivers.
  C. Reset the printer to factory settings.
  D. Restart the spooler service.
  D. Restart the spooler service.

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  Explanation

  In networked print environments, print jobs are processed through a system service called the print spooler. CompTIA A+ stresses that when shared printers fail due to job overload, the problem often lies with a hung or overloaded spooler service , especially when multiple jobs are sent simultaneously. The spooler queues, organizes, and processes print jobs; if it becomes overwhelmed or corrupted, printing stops completely even though the network and printer hardware remain functional. After verifying network connectivity--as the question states-- the next logical and CompTIA-aligned troubleshooting step is to restart the spooler service (D). Restarting it clears stuck or corrupt jobs, reinitializes print processing, and restores functionality without requiring a full server reboot or reinstallation of drivers.

  Rebooting the server (A) may work but is unnecessarily disruptive and affects multiple services. Reinstalling printer drivers (B) is only warranted for driver corruption issues and is not the first step for spooler congestion. Resetting the printer to factory defaults (C) erases settings and is far too drastic for a simple print queue issue.

  Therefore, the most efficient and technically correct action is restarting the print spooler service , restoring printing immediately while maintaining normal server operations.

• Question 104:

  Which of the following would prevent a virtual machine from communicating with any endpoints on a network or the internet?

  A. VDI
  B. Private cloud
  C. Sandbox
  D. Type 1 hypervisor
  C. Sandbox

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  Explanation

  A sandbox is an isolated virtual environment used to test or run applications securely without risk to the host or network. It prevents the VM from communicating with external systems, making it ideal for testing malware or suspicious software.

  Option A (VDI):Virtual Desktop Infrastructure allows network communication; it does not restrict it.

  Option B (Private cloud):Refers to a cloud deployment model, not a communication barrier.

  Option D (Type 1 hypervisor):Runs VMs directly on hardware and doesnotinherently block communication.

  References:

  Objective 4.1: Compare and contrast cloud computing concepts.

• Question 105:

  A user replaces their PC power supply and connects it to the components, but the PC fails to start.

  What is the most likely cause?

  A. The computer requires additional RAM
  B. The wattage is insufficient
  C. The 4-pin CPU power connector is not connected
  D. The PSU only works in redundant setups
  C. The 4-pin CPU power connector is not connected

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  Explanation

  Modern motherboards require both the 24-pin ATX connector and a 4-pin or 8-pin CPU power connector. If the CPU power connector is not attached, the motherboard will receive power but the system will not boot. CompTIA A+ specifically lists this as a common mistake after replacing a power supply.

  Insufficient wattage may cause instability, but usually the system still attempts to start. RAM does not prevent power-on if missing; instead, the system produces beep codes. Redundant PSUs are used in servers, not standard desktops.

  Therefore, the missing CPU power connector is the most likely cause, and this scenario reflects typical troubleshooting steps outlined in A+ hardware diagnostics.

• Question 106:

  Which of the following tools would a technician use to connect wires to an RJ45 connector?

  A. Crimper
  B. Cable stripper
  C. Punchdown
  D. Loopback plug
  A. Crimper

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  Explanation

  A crimper is specifically used to attach RJ45 connectors to the ends of network cables. It presses the connector pins into the cable's wires, establishing a secure electrical connection. A punchdown tool is used for wiring patch panels or keystone jacks, not for attaching connectors.

  References:

  "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 3,";Cables and Connectors", page 162.

  Also outlined in the220-1201objectives under 3.1.

• Question 107:

  A company wants to optimize its hardware usage by running multiple operating systems concurrently on a single physical server.

  Which of the following concepts achieves this goal?

  A. Host-based virtualization
  B. Public cloud services
  C. High-availability clustering
  D. Software as a service
  E. Load balancing
  A. Host-based virtualization

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  Explanation

  Running multiple operating systems at the same time on a single physical server is accomplished through virtualization. In this scenario, host-based virtualization means a host operating system is installed on the physical server first, and then virtualization software runs on top of that OS to create and manage multiple virtual machines. Each virtual machine can run its own guest operating system independently, while sharing the server's CPU, RAM, storage, and network resources.

  This improves hardware utilization because one physical server can replace multiple separate machines, and resources can be allocated to VMs based on workload needs.

  The other options do not directly describe the concept of running multiple OS instances on the same physical hardware. Public cloud services describe a delivery model where resources are provided by a third-party provider, but the underlying concept enabling multiple OS instances is still virtualization. High-availability clustering focuses on redundancy and failover across multiple servers. Software as a service provides a completed application to users, not multiple OS instances. Load balancing distributes traffic across systems and does not create separate operating systems. Therefore, the correct choice is host-based virtualization.

• Question 108:

  Which of the following DHCP components allows a device to be assigned the same IP address anytime it is connected to the network?

  A. Exclusion
  B. Reservation
  C. Lease
  D. Scope
  B. Reservation

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  Explanation

  A DHCP reservation ensures a specific device always receives the same IP address from the DHCP server whenever it requests an address. The reservation is typically created by associating the device's MAC address with a chosen IP address inside the DHCP scope. When that device connects and performs the DHCP process, the server recognizes the MAC address and offers the reserved IP instead of assigning the next available dynamic address. This is commonly used for devices that benefit from consistent addressing (for example, printers, servers, or network appliances) while still centrally managing addressing through DHCP rather than configuring a manual static IP on the endpoint.

  An exclusion is the opposite idea: it defines a range of IP addresses within a scope that the DHCP server will not hand out (often because those addresses are used for statically assigned devices). A lease is the time period that a dynamically assigned IP address is valid before it must be renewed; it does not guarantee the same IP every time. A scope is the overall pool/range of IP addresses and DHCP options (gateway, DNS, etc.) available for a given subnet. Therefore, the component that guarantees the same IP is a reservation.

• Question 109:

  A technician replaces a laptop's failed motherboard. During validation testing, the wireless is slow and shows a weak signal.

  Which of the following should the technician do first to verify the source of the issue?

  A. Contact the manufacturer
  B. Reseat antenna connections
  C. Restart the access point
  D. Install a new wireless adapter
  B. Reseat antenna connections

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  Explanation

  Comprehensive and Detailed Explanation:

  Laptop Wi-Fi antennas run through the display bezel and connect via small coaxial clips. After motherboard replacement, these are often not fully seated, causing weak or unstable Wi-Fi.

  CompTIA Concepts:

  Laptop hardware troubleshooting

  Antenna connector checks after repair

  WLAN performance issues caused by antenna misalignment

• Question 110:

  An employee is on a business trip and needs to upload daily conferences and meetings to the company's intranet. The uploading process is successful but was faster in the past.

  Which of the following is the most likely reason for the slowdown?

  A. Wireless is turned off.
  B. 5G is disabled.
  C. Roaming is turned on.
  D. Data is being throttled.
  D. Data is being throttled.

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  Explanation

  Data throttling, often implemented by network providers to manage bandwidth usage, can slow data speeds after a certain usage limit is reached. Turning off wireless would prevent uploads, while roaming and 5G status primarily affect connectivity rather than speed throttling. CompTIA A+ Core 1 objectives cover connectivity troubleshooting for mobile devices, including factors impacting network speed and performance.