CompTIA A+ Core 1 - Readiness Assessment (Mastery)

By Mr Sparkles · Updated Jul 10, 2026

CertificationA+ (Core 1) (220-1101)
Questions20
Passing Score95%
Format100% Multiple Choice
Sessions Logged3,180
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Certification Summary

CompTIA A+ 220-1101 is the baseline ticket for the new hire who needs to prove they can handle a bench repair or a field tech dispatch. You sit this exam when you are trying to land your first role where you physically touch the hardware or answer the phones for a busy MSP.

Hardware, Networking, and Hardware and Network Troubleshooting make up over half the exam. Expect scenarios where a user is yelling that their printer is offline or their machine will not pull an IP address, forcing you to pick the right command or physical check from a list. The test also covers mobile devices and cloud concepts, specifically matching laptop components or identifying virtual machine settings that stop a user from reaching the company server.

Topics covered

This quiz

Uncategorized20 (100%)

Exam blueprint

Official domain weights for this certification.

Mobile Devices15%
Networking20%
Hardware25%
Virtualization and Cloud Computing11%
Hardware and Network Troubleshooting29%

Uncategorized20 questions

Question catalog for this preview

Catalog listing of the 5 preview questions for this quiz.

Question 1

A desktop computer repeatedly power‑cycles during POST with no video output and no beep codes. The system never reaches the BIOS splash screen. The technician has already verified that the wall outlet and surge protector are functioning normally.

What should be performed first?

Answer choices

  • A. Reseat all motherboard and power‑supply connections, then test with a known‑good PSU.

  • B. Boot from recovery media.

  • C. Reduce the system to a minimum hardware configuration and observe changes.

  • D. Update motherboard drivers using a USB flash drive.

Question 2

A custom-built workstation operates normally during web browsing, office applications, and video playback. However, during long CAD rendering jobs the system abruptly powers off without warning. No blue screen is displayed. Event logs indicate the shutdown was unexpected.

The workstation contains:

  • High-end CPU

  • Dedicated workstation GPU

  • 500W power supply

  • Estimated peak system draw of approximately 485W

The technician captures monitoring data immediately before a shutdown:

  • CPU temperature: 63°C

  • GPU temperature: 58°C

Repeated render attempts cause shutdowns to occur progressively faster.

Which explanation best fits the evidence?

Answer choices

  • A. The CPU is triggering thermal shutdown protection due to excessive heat buildup.

  • B. The power supply is operating near its sustained capacity limits and becomes unstable under prolonged load.

  • C. The CMOS battery is failing and causing power interruptions during rendering operations.

  • D. Memory bandwidth limitations caused by single-channel operation are forcing emergency system shutdowns.

Question 3

Question 1: Mobile Device Policy, Connectivity & MDM Enforcement

A field technician's corporate-managed smartphone connects to office Wi-Fi without issue. However, immediately after leaving the building and transitioning to cellular service, all internet access stops despite displaying a strong LTE signal. Personal devices using the same carrier continue functioning normally. The device recently received updated security policies from the company's mobile device management (MDM) platform.

The technician confirms:

  • Cellular service is enabled.

  • Airplane mode is off.

  • Voice calls function normally.

  • Wi-Fi connectivity works correctly.

What is the most likely root cause?

Answer choices

  • A. The internal cellular antenna has developed a partial hardware fault affecting only data traffic.

  • B. A recently applied MDM policy is restricting cellular data usage outside approved network conditions.

  • C. The device's digitizer is interfering with radio frequency transmission.

  • D. The DHCP service provided by the cellular carrier is unavailable.

Question 4

An office deploys a single Wi-Fi 6 access point serving both a central workspace and a nearby warehouse. The warehouse is separated by reinforced concrete walls and contains industrial equipment that operates throughout the day.

Employees in the office report excellent performance. Warehouse users experience intermittent connectivity and latency spikes, particularly while machinery is operating.

The company cannot relocate the access point, install additional wired network infrastructure, or deploy additional wireless devices.

Which approach is most likely to improve warehouse connectivity?

Answer choices

  • A. Deploy a wireless bridge/extender that uses a 5 GHz backhaul connection to the existing access point.

  • B. Disable SSID broadcasting to reduce wireless overhead and improve signal quality.

  • C. Optimize the 2.4 GHz deployment using non-overlapping channels and minimize interference sources where possible.

  • D. Extend DHCP lease duration to reduce disruptions caused by temporary signal loss.

Question 5

A remote worker wants to access their company's internal file share from home. The home router uses a default LAN subnet of 192.168.1.0/24. When the worker establishes a secure split-tunnel VPN connection to the corporate office, they can access cloud-based SaaS tools but completely lose the ability to reach the local network printer at their house or the corporate file share, which coincidentally resides on a corporate subnet of 192.168.1.0/24.

What fundamental networking conflict is causing this behavior?

Answer choices

  • A. The corporate firewall is explicitly blocking outbound ICMP traffic.

  • B. An overlapping IP subnet conflict is causing the local routing table to misdirect traffic destination decisions.

  • C. The home router's hardware firewall requires a manual port forwarding rule for port 445.

  • D. The worker's home ISP is blocking an IPv4-to-IPv6 transition tunnel.