Explanation: To allow multiple users to print to networked printers:
✑ Printer shares enable users to access printers shared on the network.
✑ Print servers manage print jobs and provide centralized control of printing.
✑ Why Not B (DHCP server): DHCP is unrelated to print management.
✑ Why Not D (Printer subnet): Subnets group devices but don’t manage printing.
✑ Why Not E (SMB configuration): SMB is for file sharing, not specifically print management.
✑ Why Not F (Printer Wi-Fi settings): These settings are irrelevant since the printers use Ethernet.
CompTIA A+ Exam Reference: Core 2 (220-1102), Section 4.6, printer configuration.

Explanation: Utilizing a grounding strap is the safest way to replace RAM on a server that has a redundant power supply. This ensures that no static electricity is transferred to any of the server components, which could cause permanent damage. The other options are not the correct methods for replacing RAM. Unplugging one power cable is not recommended, as it could cause the server to go offline and disrupt any services that are running. Verifying the RAM temperature is not necessary and does not provide any additional safety measures, and replacing the RAM while the server is running is not recommended, as it could cause system instability.

Explanation: A significant increase in the number of reallocated sectors on a hard drive is a clear indication that the drive is experiencing physical damage or wear and tear that cannot be repaired through software means. Reallocated sectors are bad sectors that the drive's firmware has marked as unusable and moved data to spare sectors. This is often a precursor to drive failure. Therefore, the most prudent next step is to replace the hard drive to ensure data integrity and system reliability.

Explanation: TPM stands for Trusted Platform Module, and it is a special chip installed on a computer’s motherboard that stores encryption keys, passwords, and digital certificates. It can also securely store a user’s PIN, allowing them to access the laptop without having to enter the PIN every time they log on. TPM is a secure way to store and protect sensitive data, making it ideal for use in laptops that need to securely store a PIN.

Explanation: A Storage Area Network (SAN) is a network specifically designed to pool storage resources and make them accessible to servers as if they were locally attached drives. SANs are used in data centers for high-performance storage and retrieval of large volumes of data. This setup allows multiple networked devices to access shared storage as if it were local, which matches the scenario described. PAN (Personal Area Network), WLAN (Wireless LAN), and MAN (Metropolitan Area Network) serve different purposes and do not primarily focus on shared storage access.

Explanation: If a technician is tasked with upgrading a laptop’s RAM, the technician should verify the memory requirements of the motherboard first. The motherboard of the laptop will have specific requirements for the type and amount of RAM that can be installed. By verifying the memory requirements of the motherboard, the technician can ensure that the new RAM is compatible with the laptop.

Before upgrading a laptop's RAM, a technician should verify the memory requirements of the motherboard to ensure the new RAM is compatible. The type, speed, and maximum capacity of the RAM should be checked to ensure it meets the requirements of the motherboard. References: CompTIA A+ Certification Exam Guide, pg. 347-348

Explanation: NVMe (Non-Volatile Memory Express) drives are high-speed solid-state drives that utilize the PCIe (Peripheral Component Interconnect Express) interface to connect to the motherboard. Before purchasing an NVMe drive, the user should confirm that the PC has an available M.2 slot for the drive and that the PC has a PCIe interface for the M.2 slot. SATA (Serial ATA) is an older interface for hard drives and is not compatible with NVMe drives. SAS (Serial Attached SCSI) is a newer interface for hard drives and is typically used for enterprise-level storage systems. SCSI (Small Computer System Interface) is a parallel interface for hard drives that is primarily used in high-end workstations and servers. DRAM (Dynamic Random Access Memory) is a type of memory commonly used in computers, but it is not relevant to the storage of data on a hard drive. Reference: CompTIA A+ Core 1 Exam Guide, page 267.

Explanation: Display burn-in occurs when a static image is left on a screen for a long time, causing the pixels to wear out unevenly and retain a ghost image even when new content is displayed. This issue can result in double images, where the "burned-in" stationary image persists alongside new, live content. This problem is more common in older displays or those used for static signage. Replacing the display cable or adjusting color settings would not address the underlying cause of uneven pixel wear, and burned-out bulbs would likely result in a loss of image clarity or brightness, not double images.
References: Display burn-in is a well-documented phenomenon in display technology, particularly affecting screens used for signage with static elements.

Explanation:
✑ Outdated drivers: Device functionality issues after an OS upgrade are often caused by incompatible or outdated drivers.
✑ Disabled settings: Some features may be disabled during the upgrade process, requiring re-enablement.
✑ Why Not A (Incorrect configuration): This is unlikely given the issues arose only after the upgrade.
✑ Why Not B (OS and device incompatibility): Upgrades check for compatibility before installation.
✑ Why Not D (Full storage): Storage issues typically prevent installation, not device functionality.
✑ Why Not F (Corrupted registry entries): While possible, this is less common than the selected answers.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 3.5, troubleshooting OS upgrades.