CompTIA A+ Core 1 & 2 (V15) Exam Practice Test 3

Spotlight provides a universal search that can find files, launch applications, and even perform quick calculations from a single keyboard shortcut. Mission Control manages desktops/windows, Time Machine handles backups, and Keychain stores passwords.

VNC provides cross-platform graphical remote screen sharing and control, letting a technician see and interact with a user's screen regardless of the operating system on either end. WinRM and SSH are command-line focused, and a site-to-site VPN connects networks rather than providing interactive screen sharing.

.bat is the file extension for traditional Windows batch scripts, an older and simpler scripting approach than PowerShell's .ps1 format, well suited to basic automation tasks.

Politely acknowledging what the customer says while gently redirecting back to the task at hand respects the customer while keeping the appointment productive. Ignoring, dismissing, or ending the appointment abruptly all risk damaging the customer relationship.

A kernel-power critical error logged right before an unexpected restart is a well-known indicator of the system unexpectedly losing power. Browser passwords, wallpaper, and mouse DPI settings have no relationship to a power-related system restart.

Free software from unfamiliar sources commonly bundles unwanted toolbars or browser hijackers during installation. A Windows Update, ISP DNS change, or monitor driver wouldn't specifically alter browser toolbars or default search engine settings.

A specific app misbehaving right after an OS update strongly suggests an app compatibility issue that a pending app update would likely resolve. SIM card replacement, a factory reset, or disabling Bluetooth don't address an app-specific compatibility problem.

Each setting addresses a distinct SOHO security concern: hiding the SSID reduces casual visibility, changing the default password protects administrative access, WPA3 provides strong current encryption, and disabling UPnP prevents automatic, unapproved firewall port openings.

Degaussing with an in-house tool, or a certified software wipe, can both be done without third-party involvement or specialized shop equipment, while still rendering data unreadable. Shredding, incineration, and drilling all typically require specialized equipment or third-party facilities.

A locator application with remote lock capability provides both map-based tracking and the ability to lock the screen with a custom message, without yet erasing data. Remote wipe would erase data rather than lock the screen, and content filtering or camera restriction don't address locating or locking a lost device.

Licensing assignment tracks and manages available paid seats, and identity synchronization allows a single account disable action to cut off access across multiple connected services at once. Videoconferencing settings, presentation templates, and spreadsheet permissions are unrelated to either need.

A dependency requirement like a specific .NET Framework version must be confirmed as installed or installable before rollout, and older .NET versions can often coexist with newer ones. CPU bitness, monitor resolution, and license type are separate considerations that don't address this specific dependency.

tail -f displays the end of a file and continues to show new lines as they're appended in real time. cat displays a file's entire contents at once, head shows the beginning of a file, and ls lists directory contents rather than file content.

Modern mobile OSs allow per-app location permission levels, including "while using the app," granting GPS access only during active use. Disabling location entirely would break the check-in feature, and airplane mode or Bluetooth settings don't control location permission granularity.

Checking whether QoS is prioritizing real-time video/voice traffic, and whether other bandwidth-heavy traffic is competing for the connection, directly addresses latency and jitter specific to video calls. Office chairs, fire extinguishers, and printer toner are unrelated to network performance.

A consistent offset in touch registration, especially worse near the edges, is a classic sign the touchscreen needs recalibration, a quick, non-destructive first step. Jumping to screen replacement, a factory reset, or a battery swap are more drastic steps that don't address a calibration issue directly.

A focus ring that can't produce a sharp image no matter how it's adjusted often points to something physically obstructing or degrading the lens itself. An HDMI cable, Wi-Fi connection, or remote control wouldn't affect the projector's optical focus.

A hybrid cloud combines private, dedicated infrastructure for sensitive workloads with public cloud resources for less-sensitive needs. A public-cloud-only or single multitenant platform wouldn't provide dedicated isolation, and a community cloud is shared among organizations with common concerns.

Each PSU specification serves a distinct purpose: wattage rating defines maximum output capacity, the 20+4 pin connector powers the motherboard, a modular design lets technicians attach only needed cables, and an input voltage selector accommodates different regional electrical standards.

CPU socket type compatibility is a hard requirement, since a mismatched socket simply won't physically fit or function. RAM amount, laptop-only processors, and SATA connectors are unrelated to CPU socket compatibility.

A flash drive or memory card provides fast, removable, offline storage transfer. An optical drive is much slower for large video files, a SAN is enterprise network storage, and cloud storage requires a network connection, which the scenario wants to avoid.

6GHz is the newest Wi-Fi band, offering wider channels and far less legacy device congestion than 2.4GHz. 2.4GHz is the most crowded and interference-prone band, and 900MHz/433MHz aren't standard Wi-Fi bands.

Port 22 is used by SSH, which provides encrypted remote command-line access, unlike Telnet on port 23 which transmits data unencrypted. FTP and HTTP serve file transfer and web browsing, not secure remote shell access.

A toner probe sends a signal down a cable that a handheld probe can detect at the other end, letting a technician trace an unlabeled cable's physical path without disconnecting it, unlike a cable tester which verifies wiring but doesn't trace a physical path.

The scenario explicitly describes replacing the keyboard and addressing a non-functioning wireless card. Battery, camera, and microphone aren't mentioned as being serviced in this scenario.