RN-BC Hardware Network Practice Questions (50 Flashcards)

This is Software as a Service (SaaS). In SaaS, the provider hosts the application and data, and the user accesses it via a web browser or thin client. It minimizes the need for local IT maintenance and shifts responsibility for updates to the vendor. ANCC Exam Tip: SaaS is the most common cloud model for modern EHRs (e.g., cloud-based Epic or Cerner). It reduces the need for on-site server rooms but offers less customization than on-premise solutions. Clinical Pearl: SaaS ensures all clinicians are on the same software version simultaneously, reducing version drift issues.

VDI allows for session persistence or roaming sessions. Clinicians can log out of one terminal and log into another, resuming exactly where they left off without reloading the EHR or patient charts. This significantly reduces time to chart and cognitive load. *Exam Tip:* ANCC often focuses on how technology improves clinical efficiency and data security (as data resides on the server, not the local device).

2D (Matrix) Barcode Scanners (e.g., DataMatrix). Unlike 1D linear scanners that read only horizontally, 2D scanners use image sensors to capture data vertically and horizontally. This allows for significantly higher data density in a smaller footprint and the ability to scan damaged or poorly printed codes. Clinical Pearl: 2D scanners are essential for GS1 DataMatrix standards which include GTIN, expiry, and lot number, enhancing patient safety beyond just the NDC.

In a star topology, all devices connect to a central switch. If one cable fails, only that specific device loses connectivity; the rest of the network remains functional. This provides high fault tolerance compared to bus or ring topologies. ANCC Exam Tip: Star topology is the standard for modern clinical environments because it simplifies troubleshooting and prevents a single point of failure from causing a total unit outage. Distractor: The entire network goes down (this only applies to older bus topologies).

The primary advantage of the 6 GHz band in Wi-Fi 6E is the massive increase in spectrum (up to 1200 MHz of new bandwidth) and the total absence of legacy device interference. Unlike 2.4/5 GHz, 6 GHz does not require backward compatibility with older, slower standards (like 802.11b/g/n), ensuring greenfield performance. Clinical Pearl: This is ideal for high-bandwidth, low-latency applications like real-time surgical imaging and high-density EHR access. ANCC Exam Tip: Distinguish between Wi-Fi 6 (802.11ax on 2.4/5 GHz) and Wi-Fi 6E (802.11ax on 6 GHz). Distractors often mention longer range, which is incorrect; higher frequencies (6 GHz) actually have shorter range and less wall penetration than lower frequencies.