DCDC-003.1 Exam Dumps and Practice Questions

To properly answer this question, I would need to see the available options provided in the question. The distance requirement for a data center from a commercial airport is typically specified in industry standards and regulations.

Generally, data centers should be located at a safe distance from airports to minimize risks from potential aircraft incidents. The specific distance requirement usually depends on:

• Airport classification - whether it's a major international airport or a smaller regional airport
• Regulatory standards - different jurisdictions may have different requirements
• Risk assessment - proximity to flight paths and landing zones

Common industry guidance suggests maintaining a distance of at least 5-10 km (3-6 miles) from commercial airports, though this can vary based on local regulations and specific circumstances. Without seeing the specific answer options provided in your question, I cannot definitively select the correct label(s). Please provide the available options so I can identify the correct answer with certainty.

According to TIA-942, the low temperature that must be maintained in a data center is 64.4°F (18°C). This minimum temperature ensures equipment operates within manufacturer specifications and prevents issues associated with excessively cold environments.

Temperature in a data center HVAC system is typically measured at the return air inlet to the CRAC/CRAH unit or in the hot aisle. This location provides an accurate representation of the thermal load being generated by equipment. Additionally, temperature sensors are strategically placed at equipment intake vents (in-row sensors) to monitor cold aisle temperature and ensure that equipment is receiving adequate cooling. Proper sensor placement is critical for maintaining optimal operating temperatures and triggering cooling adjustments.

The mechanical equipment room and/or equipment room should have direct access to the computer room. This proximity allows efficient distribution of cooling, power, and other utilities to IT equipment while minimizing the length of cable runs and ductwork. It also facilitates rapid maintenance and troubleshooting of critical infrastructure systems supporting the data center's operations.

The second preference regarding utility service is utility service with redundancy through separate utility feeds from the same substation. While this still provides redundancy and improved reliability compared to a single feed, it is ranked lower than the first preference because both feeds originate from the same substation. If that substation experiences a total outage, both feeds would be affected simultaneously, reducing overall resilience compared to feeds from completely separate utility sources.