Use these examples to check how the topics are tested. Read the explanation for every option you were unsure about, then start a scored practice set above.

Question 1 1.0 Mobile Devices

Which mobile sensor provides compass functionality?

○ Accelerometer
○ Gyroscope
✓ Magnetometer
○ Barometer

Answer: C. Magnetometer

Magnetometer is correct.

Question 2 1.0 Mobile Devices / 2.0 Networking

Which protocol typically uses TCP/UDP port 110?

✓ POP3
○ IMAP
○ DNS
○ HTTPS

Answer: A. POP3

TCP port 110 is used by assigned to POP3.. It is a well-known port reserved by IANA for this service. Security best practice recommends restricting access to this port using a firewall.

Question 3 1.0 Mobile Devices / 3.0 Hardware

Which Windows edition basic features, no domain join?

✓ Home
○ Pro
○ Enterprise
○ Education

Answer: A. Home

Windows Home: Basic features, no domain join.

Question 4 1.0 Mobile Devices / 5.0 Troubleshooting

Which laptop component converts touch input to digital signals?

○ DC jack
✓ Digitizer
○ LCD panel
○ Inverter

Answer: B. Digitizer

Digitizer: Converts touch input to digital signals.

Question 5 2.0 Networking

Which wireless security protocol is the MOST secure and should be used on modern networks?

○ WEP
○ WPA
○ WPA2
✓ WPA3

Answer: D. WPA3

WPA3 is the most recent and secure wireless encryption protocol, offering individualized data encryption and protection against brute-force attacks. WEP is obsolete and easily cracked, WPA is outdated, and WPA2 is still common but less secure than WPA3.

Question 6 2.0 Networking / 5.0 Troubleshooting

Which Windows command traces network route?

○ format
○ taskkill
○ sfc
✓ tracert

Answer: D. tracert

tracert: Traces network route.

Question 7 3.0 Hardware

Which RAID level requires minimum 3 drives, offers N-1 usable capacity, and tolerates 1 drive failure(s)?

✓ RAID 5
○ RAID 1
○ RAID 10
○ RAID 0

Answer: A. RAID 5

RAID 5: min 3 drives, N-1 capacity, fault tolerance=1 drive.

Question 8 3.0 Hardware / 5.0 Troubleshooting

Which Windows feature automates tasks at specific times?

○ Device Manager
○ System Restore
✓ Task Scheduler
○ Event Viewer

Answer: C. Task Scheduler

Task Scheduler: Automates tasks at specific times.

Question 9 4.0 Virtualization & Cloud

In virtualization, what is the term for "Hosted, runs on top of OS"?

○ Snapshot
○ Type 1 hypervisor
○ VDI
✓ Type 2 hypervisor

Answer: D. Type 2 hypervisor

Type 2 hypervisor: Hosted, runs on top of OS. VMware Workstation, VirtualBox.

Question 10 5.0 Troubleshooting

A user cannot connect to the internet, but other devices on the same network can. The ipconfig command shows an IP address of 169.254.x.x. What is the problem?

○ DNS server failure
✓ DHCP server unreachable — APIPA address assigned
○ Incorrect subnet mask
○ MAC address conflict

Answer: B. DHCP server unreachable — APIPA address assigned

169.254.x.x is an APIPA (Automatic Private IP Addressing) address assigned when a device cannot reach a DHCP server. This indicates a DHCP or network connectivity issue specific to that device. Other devices working rules out general network failure.

Question 11 1.0 Mobile Devices

A company wants to prevent employees from installing unauthorized applications on company-owned mobile devices. Which mobile device management (MDM) feature should be enabled?

○ Geofencing
✓ Application whitelisting
○ Remote wipe
○ GPS tracking

Answer: B. Application whitelisting

Application whitelisting restricts devices to only run approved applications, preventing unauthorized software installation. Geofencing restricts device functionality based on location, remote wipe erases device data, and GPS tracking monitors device location.

Question 12 1.0 Mobile Devices / 2.0 Networking

Which protocol typically uses TCP/UDP port 445?

○ Telnet
✓ SMB
○ SMTP
○ SNMP

Answer: B. SMB

TCP port 445 is used by assigned to SMB.. It is a well-known port reserved by IANA for this service. Security best practice recommends restricting access to this port using a firewall.

Question 13 1.0 Mobile Devices / 3.0 Hardware

Which input device reads fingerprints or facial features?

○ Stylus
○ QR scanner
✓ Biometric scanner
○ Digitizer tablet

Answer: C. Biometric scanner

Biometric scanner: Reads fingerprints or facial features.

Question 14 1.0 Mobile Devices / 5.0 Troubleshooting

A laptop screen shows "dim screen". What are likely causes?

✓ Backlight failure, inverter, brightness settings
○ Cable issue, GPU problem, panel damage
○ Loose cable, failing inverter, driver issue
○ Manufacturing defect, physical damage

Answer: A. Backlight failure, inverter, brightness settings

Dim screen: Backlight failure, inverter, brightness settings.

Question 15 2.0 Networking

Which cable type is used for cable internet?

○ Twisted pair
○ Fiber
✓ Coaxial
○ Ethernet

Answer: C. Coaxial

Coaxial is correct. This concept is important for the certification exam and appears in scenario-based questions testing your understanding of when and how to apply it.

Open the full CompTIA A+ Core 1 (220-1201) question-and-answer guide