NCP-ARI Practice Questions: AI Infrastructure Basics Domain

A) Whether the rack can be placed wherever the floor tiles are already open.

B) Whether the rack's intake and exhaust orientation aligns with the room's hot/cold aisle design.

C) Whether the rack can be turned sideways to shorten network cable paths.

D) Whether the exhaust air can be redirected into the cold aisle during extended periods of low utilization.

A) Power, cooling, grounding, redundancy, rPDU loading, and airflow containment have been verified for the planned operating load.

B) The rack is physically installed on its floor tiles and all of the front and rear doors close and latch fully against the frame.

C) The network topology diagram has been printed.

D) The data hall has many other high-density racks.

A) Wipe it away and continue on because the CDU pump is still running normally within range.

B) Increase rack power to warm the area.

C) Move fiber cables away and keep installing copper.

D) Stop or escalate and verify environmental and cooling conditions before continuing.

A) The top devices are always expected to run hotter and need no further airflow or containment review.

B) The problem is caused only by network cable length.

C) Average temperature alone may hide local hot spots that need airflow or containment review.

D) The rack should be converted from AC to DC power.

A) Align equipment so hot exhaust is directed into the contained hot aisle and cold intakes face the supply side.

B) Place racks wherever the network cables run shortest, since aisle containment corrects all airflow issues automatically.

C) Direct exhaust into the cold aisle to increase air movement.

D) Remove blanking panels to let hot air spread evenly.

A) Whether the underloaded rPDU should be filled to exactly match the other side's current draw right away.

B) Whether the load plan documents failover assumptions and the remaining feed can carry the required load.

C) Whether cable labels can hide the difference.

D) Whether network switch LEDs are green.

A) Commissioning and load plans should account for temporary loss of redundancy and remaining path capacity.

B) The rack is unaffected because two fully independent feeds are installed locally at the rack power inputs.

C) Only network validation needs to be delayed.

D) Cooling checks can replace power redundancy during maintenance.

A) No, phase balance only matters after a breaker trips.

B) No, balanced phases are only required in DC-powered racks where current sharing across phases applies.

C) Yes, phase balance should still follow the power plan because local phase limits and growth matter.

D) Yes, but only for network switches, not servers.

A) Redistribute loads according to the rack power plan so phase loading is balanced within allowed limits.

B) Add equipment to the lightest physical side of the rack because physical side balance equals phase balance.

C) Continue installation as long as total rack power stays below the combined rPDU nameplate.

D) Move all high-draw devices to the same phase so monitoring is easier during burn-in.

A) Continue the installation and note the missing hardware for the final report.

B) Use cable shields as a temporary bonding path until the hardware arrives.

C) Rely on the rPDU ground conductor alone because separate rack bonding hardware is never required.

D) Pause or escalate until grounding and bonding requirements are verified and corrected.