Comprehensive and Detailed Explanation From Exact Extract:
The issue described-"domain cannot be found" despite the ability to ping the server and access the internet- indicates aDNS resolution problem, not a network connectivity issue. The workstation is currently usingpublic DNS servers (8.8.8.8 and 1.1.1.1)whichcannot resolve internal domain names, such as the ones used in Active Directory environments. To resolve this, the technician needs tochange the DNS settings to point to the internal DNS server, which in most domain setups is thedomain controller itself (likely
192.168.1.10 in this case).
Here's the breakdown of the incorrect options:
B). Assign a static IP address: The IP is already assigned and functioning; the device can ping and reach the network and internet.
C). Configure a subnet mask: The subnet mask is appropriate for the network range (Class C /24).
D). Update the default gateway: The gateway is valid and allows internet access; this is not the issue.
CompTIA A+ 220-1102 Core 2 Objective Reference:
Objective 1.8 - Given a scenario, use features and tools of the operating system.
Under this objective, candidates must know how to troubleshoot OS-based network configurations, includingproper DNS settings in domain environments.
-

Comprehensive and Detailed Explanation From Exact Extract:
Memory usage is critically high, suggesting many applications or background processes. Closing unnecessary programs will immediately free up RAM.
FromTravis Everett - All-in-One Exam Guide:
"High memory usage with moderate CPU load usually means too many applications are open. Close unnecessary apps or use Task Manager to end processes."

Comprehensive and Detailed Explanation From Exact Extract:
This is likely arogue antivirusor scareware tactic. The user shouldnot click "OK"and instead check Windows Security (or third-party antivirus) status and ensure real-time protection is enabled.
FromMark Soper - Mike Meyers' Lab Manual:
"Users should verify security center settings if receiving suspicious pop-ups. Clicking unknown software updates can install malware. It's safer to validate protection through legitimate system tools."

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:
Windows 11 features a"Do Not Disturb"mode under Notification settings, which is designed to suppress interruptions during tasks like videoconferencing.
FromQuentin Docter - CompTIA A+ Complete Study Guide:
"Windows 11 introduces Do Not Disturb and Focus Assist under notification settings, enabling users to mute alerts during presentations or calls."