COMPTIA A+ CERTIFICATION EXAM –QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A |
INSTANT DOWNLOAD PDF.
Core Domains
* Mobile Devices
* Networking
* Hardware
* Virtualization and Cloud Computing
* Hardware and Network Troubleshooting
* Operating Systems
* Security
* Software Troubleshooting
* Operational Procedures
Introduction
*The purpose of this examination is to validate the foundational skills and technical knowledge required for an entry-level IT prof
SECTION ONE: QUESTIONS 1–100
1. A technician is configuring a SOHO router and needs to ensure that only specific devices can connect based on their physical hardware
address. Which security feature should be enabled?
A. SSID Broadcast
B. MAC Filtering
C. WPA3 Encryption
D. Port Forwarding
🟢 B. MAC Filtering
🔴 RATIONALE: MAC filtering allows an administrator to create an allow-list or deny-list of devices based on their unique Media Access
Control address, restricting network access to recognized hardware.
2. A user reports that their laptop screen is flickering intermittently. Which hardware component is the most likely culprit?
,A. Hard drive
B. CMOS battery
C. Video cable
D. RAM module
🟢 C. Video cable
🔴 RATIONALE: A loose or damaged video cable (often the LVDS or eDP cable) connecting the motherboard to the display panel is a
common cause of intermittent screen flickering in laptops.
3. Which of the following is an example of an IaaS cloud service model?
A. Google Docs
B. Microsoft Azure Virtual Machines
C. Salesforce CRM
D. Dropbox
🟢 B. Microsoft Azure Virtual Machines
🔴 RATIONALE: Infrastructure as a Service (IaaS) provides virtualized computing resources, such as virtual machines and storage, over the
internet, allowing users to manage their own operating systems.
4. A company requires a storage solution that provides fault tolerance and high performance by striping data with parity. Which RAID level
should be implemented?
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 10
🟢 C. RAID 5
🔴 RATIONALE: RAID 5 uses block-level striping with distributed parity, providing a balance between high read speeds and data
redundancy, requiring at least three drives.
5. A technician is troubleshooting a printer that is producing smudged output. What is the most likely cause?
A. The fuser unit is failing to heat up correctly
B. The pickup rollers are worn
C. The paper tray is misaligned
D. The toner cartridge is empty
🟢 A. The fuser unit is failing to heat up correctly
🔴 RATIONALE: The fuser unit melts toner onto the paper; if it fails to reach the proper temperature, the toner remains loose and smudges
easily.
6. Which protocol is primarily used for secure file transfers over an SSH connection?
A. FTP
B. SFTP
C. TFTP
, D. HTTP
🟢 B. SFTP
🔴 RATIONALE: Secure File Transfer Protocol (SFTP) provides a secure channel for file transfer by leveraging the encryption capabilities of
SSH.
7. A technician needs to connect a workstation to a network using a fiber optic cable. Which connector type is most commonly used for
high-speed fiber networking?
A. RJ-45
B. LC
C. BNC
D. DB-9
🟢 B. LC
🔴 RATIONALE: The LC (Lucent Connector) is a small form-factor fiber optic connector widely used in modern networking for its compact
size and efficiency.
8. When handling a customer dispute regarding a service delay, what is the best professional approach?
A. Explain the technical reasons for the delay immediately
B. Ignore the complaint and focus on the repair
C. Listen carefully, acknowledge their frustration, and provide a clear timeline
D. Blame the hardware manufacturer for the delay
🟢 C. Listen carefully, acknowledge their frustration, and provide a clear timeline
🔴 RATIONALE: Providing excellent customer service involves active listening and showing empathy while maintaining professional
standards to de-escalate frustration.
9. Which command-line tool is used to display the current network configuration, including IP address, subnet mask, and default gateway,
on a Windows system?
A. ipconfig
B. ping
C. tracert
D. nslookup
🟢 A. ipconfig
🔴 RATIONALE: The ipconfig command provides detailed information about the local interface settings, making it the standard tool for
verifying IP configuration on Windows.
10. A user's computer displays a "No Boot Device Found" error. What is the most likely cause?
A. The operating system is corrupted
B. The BIOS boot order is incorrect or the drive is disconnected
C. The RAM is failing
D. The power supply unit is malfunctioning
🟢 B. The BIOS boot order is incorrect or the drive is disconnected
INSTANT DOWNLOAD PDF.
Core Domains
* Mobile Devices
* Networking
* Hardware
* Virtualization and Cloud Computing
* Hardware and Network Troubleshooting
* Operating Systems
* Security
* Software Troubleshooting
* Operational Procedures
Introduction
*The purpose of this examination is to validate the foundational skills and technical knowledge required for an entry-level IT prof
SECTION ONE: QUESTIONS 1–100
1. A technician is configuring a SOHO router and needs to ensure that only specific devices can connect based on their physical hardware
address. Which security feature should be enabled?
A. SSID Broadcast
B. MAC Filtering
C. WPA3 Encryption
D. Port Forwarding
🟢 B. MAC Filtering
🔴 RATIONALE: MAC filtering allows an administrator to create an allow-list or deny-list of devices based on their unique Media Access
Control address, restricting network access to recognized hardware.
2. A user reports that their laptop screen is flickering intermittently. Which hardware component is the most likely culprit?
,A. Hard drive
B. CMOS battery
C. Video cable
D. RAM module
🟢 C. Video cable
🔴 RATIONALE: A loose or damaged video cable (often the LVDS or eDP cable) connecting the motherboard to the display panel is a
common cause of intermittent screen flickering in laptops.
3. Which of the following is an example of an IaaS cloud service model?
A. Google Docs
B. Microsoft Azure Virtual Machines
C. Salesforce CRM
D. Dropbox
🟢 B. Microsoft Azure Virtual Machines
🔴 RATIONALE: Infrastructure as a Service (IaaS) provides virtualized computing resources, such as virtual machines and storage, over the
internet, allowing users to manage their own operating systems.
4. A company requires a storage solution that provides fault tolerance and high performance by striping data with parity. Which RAID level
should be implemented?
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 10
🟢 C. RAID 5
🔴 RATIONALE: RAID 5 uses block-level striping with distributed parity, providing a balance between high read speeds and data
redundancy, requiring at least three drives.
5. A technician is troubleshooting a printer that is producing smudged output. What is the most likely cause?
A. The fuser unit is failing to heat up correctly
B. The pickup rollers are worn
C. The paper tray is misaligned
D. The toner cartridge is empty
🟢 A. The fuser unit is failing to heat up correctly
🔴 RATIONALE: The fuser unit melts toner onto the paper; if it fails to reach the proper temperature, the toner remains loose and smudges
easily.
6. Which protocol is primarily used for secure file transfers over an SSH connection?
A. FTP
B. SFTP
C. TFTP
, D. HTTP
🟢 B. SFTP
🔴 RATIONALE: Secure File Transfer Protocol (SFTP) provides a secure channel for file transfer by leveraging the encryption capabilities of
SSH.
7. A technician needs to connect a workstation to a network using a fiber optic cable. Which connector type is most commonly used for
high-speed fiber networking?
A. RJ-45
B. LC
C. BNC
D. DB-9
🟢 B. LC
🔴 RATIONALE: The LC (Lucent Connector) is a small form-factor fiber optic connector widely used in modern networking for its compact
size and efficiency.
8. When handling a customer dispute regarding a service delay, what is the best professional approach?
A. Explain the technical reasons for the delay immediately
B. Ignore the complaint and focus on the repair
C. Listen carefully, acknowledge their frustration, and provide a clear timeline
D. Blame the hardware manufacturer for the delay
🟢 C. Listen carefully, acknowledge their frustration, and provide a clear timeline
🔴 RATIONALE: Providing excellent customer service involves active listening and showing empathy while maintaining professional
standards to de-escalate frustration.
9. Which command-line tool is used to display the current network configuration, including IP address, subnet mask, and default gateway,
on a Windows system?
A. ipconfig
B. ping
C. tracert
D. nslookup
🟢 A. ipconfig
🔴 RATIONALE: The ipconfig command provides detailed information about the local interface settings, making it the standard tool for
verifying IP configuration on Windows.
10. A user's computer displays a "No Boot Device Found" error. What is the most likely cause?
A. The operating system is corrupted
B. The BIOS boot order is incorrect or the drive is disconnected
C. The RAM is failing
D. The power supply unit is malfunctioning
🟢 B. The BIOS boot order is incorrect or the drive is disconnected
