220-1202 Exam Dumps - CompTIA A+ Questions and Answers

A “utility failure” implies a power interruption (brownout/blackout). The device that prevents an immediate shutdown during an outage is a UPS . Quentin Docter explains that a UPS stores energy in batteries and “if the power fails, the batteries can power the computer for a period of time so that the administrator can then safely power it down.” He further notes UPS devices also protect against “power sags and even power outages” and may work with operating systems to shut down safely and automatically.

Mike Meyers’ Lab Manual echoes the same: a UPS “continues to supply AC power to your computer during both brownouts and blackouts via a battery that is charged from the AC current.”

A surge suppressor is mainly for voltage spikes, not sustained backup power. A redundant PSU helps only if one PSU fails inside the system, and Docter explicitly states it “can’t keep the system up and running if there is a power outage.” Therefore, the best answer is B .

The correct answer is C. DDoS (Distributed Denial-of-Service) , because the attack involves thousands of compromised machines , commonly referred to as a botnet , generating fraudulent traffic against an online service. Although the activity includes fake purchases, the scale and distributed nature indicate an attempt to overwhelm or disrupt the service.

According to the Quentin Docter – CompTIA A+ Complete Study Guide , DDoS attacks use multiple systems to flood a target with traffic, exhausting server resources and preventing legitimate users from accessing the service. These attacks often involve compromised devices controlled remotely.

The Travis Everett & Andrew Hutz – All-in-One Exam Guide explains that DDoS attacks can take many forms, including HTTP request floods and application-layer attacks that mimic legitimate user actions, such as fake transactions.

The Mike Meyers / Mark Soper Lab Manual clarifies that brute-force attacks focus on credential guessing, spoofing involves identity falsification, and SQL injection targets database queries. None of those specifically require thousands of compromised machines.

Because the defining characteristics here are scale, distribution, and coordinated malicious activity , the correct classification is a DDoS attack , making C the correct answer.

Comprehensive and Detailed Explanation From Exact Extract:

TheDo Not Disturbsetting in Windows Notification settings allows users to suppress all notification banners and sounds during presentations or video calls.

FromTravis Everett – All-in-One Exam Guide:

“Use Windows ‘Do Not Disturb’ to prevent notifications from interrupting full-screen apps like video conferencing.”

The correct answer is C. Change the User Account Control (UAC) settings , because the credential prompt during installation indicates that the system is requesting administrative privileges . In Windows environments, UAC is designed to prevent unauthorized system changes by prompting for administrator approval when elevated permissions are required.

According to the Quentin Docter – CompTIA A+ Complete Study Guide , UAC acts as a security boundary between standard user activities and system-level changes such as software installation. If a user does not have sufficient privileges, the system will request administrator credentials before proceeding.

The Travis Everett & Andrew Hutz – All-in-One Exam Guide explains that technicians can temporarily adjust UAC settings or provide proper elevation to allow legitimate installations. This is especially common in corporate environments where users operate with standard accounts.

The Mike Meyers / Mark Soper Lab Manual reinforces that restarting the computer or using a different browser does not change permission requirements. Contacting the software vendor is unnecessary when the issue is clearly related to local security controls.

Because the installation is blocked by privilege restrictions enforced by UAC, adjusting User Account Control settings or providing proper elevation is the correct and most efficient resolution, making C the correct answer.

Comprehensive and Detailed Explanation From Exact Extract:

Authenticator apps, such as Google Authenticator or Microsoft Authenticator, can be configured to sendpush notificationsto users for approval when logging in. This is a form of multi-factor authentication.

FromAll-in-One Exam Guide:

“Push-based two-factor authentication uses an authenticator app to send a notification to a mobile device. The user must approve the login attempt in real time, ensuring the request is valid.”

Comprehensive and Detailed Explanation From Exact Extract:

Thefirst stepin troubleshooting degraded mobile performance is typically arestart. This clears RAM and stops background processes that might be causing issues.

FromAll-in-One Exam Guide:

“Before taking invasive measures like a factory reset, always restart the device. A reboot clears temporary files and can significantly improve responsiveness.”

Comprehensive and Detailed Explanation From Exact Extract:

Once the system is cleaned, the next priority is toeducate the useron safe practices to prevent recurrence.

FromQuentin Docter – CompTIA A+ Complete Study Guide:

“Post-malware remediation should include user education to prevent reinfection and identify how the malware was introduced.”

Comprehensive and Detailed Explanation From Exact Extract:

Anincident reportsummarizes what happened during an outage, the timeline, the actions taken, and the resolution, which is exactly what management typically requests post-incident.

FromQuentin Docter – CompTIA A+ Complete Study Guide:

“Incident reports document the events of an IT issue or outage, including detection, response, and resolution. They are crucial for post-incident review and management accountability.”

Comprehensive and Detailed Explanation From Exact Extract:

exFATis the only listed file system that supports both read and write access across Windows, macOS, and Linux (with appropriate drivers). It’s optimized for flash storage and external drives.

FromAll-in-One Exam Guide:

“exFAT is a lightweight file system with cross-platform read/write support, ideal for use on removable drives when compatibility is essential.”

Comprehensive and Detailed Explanation From Exact Extract:

Older tablets may not support newer app versions due toincompatible or unsupported operating systems. App developers often drop support for outdated OS versions.

FromTravis Everett – CompTIA A+ All-in-One Exam Guide:

“When an app won ' t install on an older device, check the OS version. Most apps require a minimum OS level for compatibility and security.”