Which of the following drive interfaces is typically used in server systems but not in home computers?
Answer(s): B
Serial Attached SCSI (SAS) drives and controllers are designed for enterprise-grade reliability, performance, and dual-port connectivity in server environments, features rarely found in consumer-grade home computers.
Which of the following could a user employ to maximize module bandwidth when selecting memory for a high-end gaming computer?
Answer(s): C
Memory channel configuration (e.g., using dual-channel, quad-channel, or higher multi-channel setups) lets the system access multiple RAM modules in parallel, effectively multiplying available bandwidth compared to a single-channel configuration. This is the most direct way to maximize memory throughput for demanding tasks like gaming.
An IT specialist compares Bluetooth and NFC technologies for mobile device connectivity. Which of the following statements accurately describes a key difference between the two?
Answer(s): D
NFC is designed for very short-range communication (typically under 4 cm), while Bluetooth supports much longer ranges (around 10 m), making option D the correct distinction between the two technologies.
A help desk technician needs to work on a high-volume printer. Users have reported occasional paper jams and smudges appearing on printed documents. Which of the following steps should the technician do next to address these issues?
Worn or dirty feed rollers commonly cause both paper jams (by failing to grip sheets properly) and smudges (by transferring toner residue). Cleaning, or, if necessary, replacing, the rollers is the most cost-effective first step before moving on to more invasive maintenance.
A user reports that a phone’s integration features consistently stop and restart when charging the phone in a car. A technician checks the phone and finds no malicious applications. Which of the following should the technician do to fix the issue?
Answer(s): A
Cleaning the connection port can resolve issues caused by dirt, debris, or corrosion interfering with the phone’s charging and data connection, which can cause integration features to stop and restart.
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