[COMPTIA A+] – PRACTICE 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 CompTIA A+ certification assessment is designed to validate the foundational
skills and knowledge required for a career in IT support and technical roles. This
exam evaluates a candidate’s ability to perform critical IT support tasks including
installing, configuring, and maintaining devices, as well as managing operating
,systems and troubleshooting complex hardware and software issues. The
assessment utilizes a multiple-choice and scenario-based structure to mirror the
challenges faced by IT professionals in the field. There is a strong emphasis on real-
world application, ethical standards, and critical decision-making to ensure
candidates can effectively support modern technological infrastructures and diverse
user environments.
Section One: Questions 1–100
1. A technician is tasked with replacing a failed SATA hard drive in a desktop
computer. Which of the following is the maximum data transfer rate supported
by the SATA Revision 3.0 standard?
A. 1.5 Gbps
B. 3.0 Gbps
C. 6.0 Gbps
D. 10.0 Gbps
🟢 C. 6.0 Gbps
🔴 RATIONALE: SATA Revision 3.0, also known as SATA 6Gb/s, provides a
maximum native transfer rate of 6.0 Gbps, doubling the speed of the previous SATA
2.0 version.
, 2. A user reports that their laptop screen is very dim and the brightness controls do
not resolve the issue. The technician can see a faint image when holding a
flashlight to the screen. Which component is most likely failing?
A. Inverter
B. Digitizer
C. Video Cable
D. Graphics Card
🟢 A. Inverter
🔴 RATIONALE: In older LCD screens using CCFL backlighting, the inverter
converts DC power to AC for the backlight; if it fails, the image remains but is no
longer illuminated.
3. Which of the following wireless networking standards operates exclusively in the
5 GHz frequency band?
A. 802.11g
B. 802.11n
C. 802.11ac
D. 802.11ax
, 🟢 C. 802.11ac
🔴 RATIONALE: The 802.11ac (Wi-Fi 5) standard was designed to operate solely in
the 5 GHz range to avoid interference commonly found in the 2.4 GHz band.
4. A company requires a cloud deployment model where resources are shared
between several organizations with common concerns, such as security and
compliance. Which model should be used?
A. Public
B. Private
C. Hybrid
D. Community
🟢 D. Community
🔴 RATIONALE: A community cloud is a collaborative effort where infrastructure is
shared by several organizations that have similar requirements and goals.
5. A technician is configuring a new SOHO router. Which of the following
encryption protocols provides the highest level of security for a wireless
network?
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 CompTIA A+ certification assessment is designed to validate the foundational
skills and knowledge required for a career in IT support and technical roles. This
exam evaluates a candidate’s ability to perform critical IT support tasks including
installing, configuring, and maintaining devices, as well as managing operating
,systems and troubleshooting complex hardware and software issues. The
assessment utilizes a multiple-choice and scenario-based structure to mirror the
challenges faced by IT professionals in the field. There is a strong emphasis on real-
world application, ethical standards, and critical decision-making to ensure
candidates can effectively support modern technological infrastructures and diverse
user environments.
Section One: Questions 1–100
1. A technician is tasked with replacing a failed SATA hard drive in a desktop
computer. Which of the following is the maximum data transfer rate supported
by the SATA Revision 3.0 standard?
A. 1.5 Gbps
B. 3.0 Gbps
C. 6.0 Gbps
D. 10.0 Gbps
🟢 C. 6.0 Gbps
🔴 RATIONALE: SATA Revision 3.0, also known as SATA 6Gb/s, provides a
maximum native transfer rate of 6.0 Gbps, doubling the speed of the previous SATA
2.0 version.
, 2. A user reports that their laptop screen is very dim and the brightness controls do
not resolve the issue. The technician can see a faint image when holding a
flashlight to the screen. Which component is most likely failing?
A. Inverter
B. Digitizer
C. Video Cable
D. Graphics Card
🟢 A. Inverter
🔴 RATIONALE: In older LCD screens using CCFL backlighting, the inverter
converts DC power to AC for the backlight; if it fails, the image remains but is no
longer illuminated.
3. Which of the following wireless networking standards operates exclusively in the
5 GHz frequency band?
A. 802.11g
B. 802.11n
C. 802.11ac
D. 802.11ax
, 🟢 C. 802.11ac
🔴 RATIONALE: The 802.11ac (Wi-Fi 5) standard was designed to operate solely in
the 5 GHz range to avoid interference commonly found in the 2.4 GHz band.
4. A company requires a cloud deployment model where resources are shared
between several organizations with common concerns, such as security and
compliance. Which model should be used?
A. Public
B. Private
C. Hybrid
D. Community
🟢 D. Community
🔴 RATIONALE: A community cloud is a collaborative effort where infrastructure is
shared by several organizations that have similar requirements and goals.
5. A technician is configuring a new SOHO router. Which of the following
encryption protocols provides the highest level of security for a wireless
network?
