Just recognizing the device isn’t enough—audio output must be routed to it manuallyby setting it as the default playback device in sound settings.

FromMark Soper – Mike Meyers ' Lab Manual:

“If audio is still playing through the internal speaker, verify that the Bluetooth headset is set as the default playback device. This can be configured under Windows Sound Settings.”

Least privilege means giving the user only enough rights to do required tasks—here, installing/uninstalling software—without granting full administrative control. Quentin Docter describes the original intent of the Power Users group: Microsoft created it so members could have “Read and Write permission to the system, allowing them to install most software but keeping them from changing key operating system files.” That matches the requirement better than Administrator, which Docter calls “the most powerful” account with the ability to do essentially anything on the system.

The other options do not fit: Guest is explicitly a limited account and is commonly disabled; it’s not intended for software management. Service accounts are designed to run services/applications, not interactive user tasks.

Important nuance: Docter also notes that in modern Windows “Windows 10/11 the group has no more permissions than a standard user” and is mainly “kept… for backward compatibility.” But on the A+ exam, “Power user” is the best available answer for “install software but not full admin,” aligning with the scenario’s intent and the listed choices.

Because the gateway and internal file shares work, the device has basic network connectivity. The two symptoms that remain— certificate errors and authentication errors —share a very common underlying cause: incorrect system time. Quentin Docter explains that certificate problems often come from “ the proper setting of time and date ,” stating that “ The time on the host should always be checked along with the expiration of the SSL certificate.” If the clock is wrong, certificates can appear “not yet valid” or “expired,” triggering browser certificate warnings even when the site is fine.

Mike Meyers also ties time drift directly to authentication failures: “ All clocks—including those in computers—experience time drift… This clock drift can cause problems with time-sensitive applications and services (especially authentication services). ” That matches the exact scenario: apps show authentication errors while browsing shows certificate errors. Duplicate IP or DHCP “bad address” typically causes intermittent or total connectivity problems (which would likely break file shares), not specifically certificate/auth failures. Therefore, time drift is the best diagnosis.

The correct answer is A. hostname . I corrected the wording from “OS name” to “host name” because, based on the answer choices, this question is testing the command that displays the computer’s host name. Quentin Docter’s Complete Study Guide explains that the hostname command returns the name of the host computer on which it is executed. This makes it appropriate for scripting because its output can be redirected to a file, such as hostname > computername.txt. The CompTIA A+ Core 2 objectives also list hostname , netstat , whoami , and winver as Windows command-line tools candidates should recognize. netstat displays active TCP/IP connections and network statistics, not the computer name. whoami displays the currently logged-in user account. winver displays Windows version information, but it opens a graphical dialog and is not the best option for writing simple script output to a file.