Which statement describes the Intel?QuickPath Interconnect Architecture on HP Workstations?

Question

Options

• AIt enables the system to assign standard memory as cache to each CPUcore.
• BIt is a direct connection between the CPU and disk.
• CIt is an architecture that helps increase the CPU cycles and improve performance.
• DIt is a high-speed point-to-point interconnects between CPU, memory, and I/O.

• A
  5% (2)
• B
  3% (1)
• D
  92% (36)

Explanation

Intel QuickPath Interconnect (QPI) is a high-speed, point-to-point serial interconnect that directly links the CPU to other CPUs, memory controllers, and I/O hubs - replacing the older Front Side Bus (FSB) with dedicated, bidirectional lanes that dramatically reduce bottlenecks and latency.

Why the distractors are wrong:

• A describes NUMA (Non-Uniform Memory Access) or Intel Smart Cache behavior, not QPI itself.
• B is incorrect because QPI connects CPU-to-CPU and CPU-to-memory/chipset, not CPU-to-disk; disk uses SATA, SAS, or NVMe interfaces.
• C is vague and misleading - QPI doesn't increase CPU clock cycles; it improves bandwidth between components, not raw CPU processing speed.

Memory tip: Think of QPI as a "private highway" between major components (CPU, memory, I/O) - point-to-point means no shared traffic, just direct, fast lanes. The key words to lock in are high-speed, point-to-point, and interconnect.

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