CompTIA SK0-005 Practice Test 2
Question 10
A change board is planning a verified response to this server event: An equipment room consolidates six servers into a small rack and plans to mount the heaviest chassis near the top despite the vendor's rail load and clearance instructions. For the Rack weight, rail compatibility and airflow issue, which response elements belong in the approved plan? Select TWO answers.
- Install by physical fit alone and rely on higher fan speed to compensate for blocked exhaust.
- Firmware reports the expected usable capacity and approved speed, with balanced populated channels and no training errors.
- Review chassis and rack load documents, weight distribution, rail part numbers, inlet temperature and actual front/rear clearances.
- Use lifecycle and alert data to schedule preventive maintenance, stock qualified critical spares and document replacement runbooks.
- Check the rack's weight rating, supported rails, front-to-back clearance and cold/hot aisle arrangement; mount heavier equipment low and preserve unobstructed cooling.
Explanation
Correct Answer
C:These observations investigate the exact Rack weight, rail compatibility and airflow failure rather than unrelated components. Confirm remediation through: The chassis is secured on compatible rails below rack capacity and sustained inlet and exhaust temperatures meet vendor limits.
E:Rack placement must satisfy structural loading, chassis mounting specifications and designed airflow; a physically fitting rail is not proof of safe installation. This is the appropriate targeted correction for Rack weight, rail compatibility and airflow.
Incorrect Answers
A:This is the unsafe shortcut in the Rack weight, rail compatibility and airflow scenario, not a justified remediation or diagnostic.
B:For this incident, the relevant principle is: Rack placement must satisfy structural loading, chassis mounting specifications and designed airflow; a physically fitting rail is not proof of safe installation. This statement concerns CPU memory compatibility and population, a different Server+ technical control.
D:For this incident, the relevant principle is: Rack placement must satisfy structural loading, chassis mounting specifications and designed airflow; a physically fitting rail is not proof of safe installation. The desired recovery condition is: The chassis is secured on compatible rails below rack capacity and sustained inlet and exhaust temperatures meet vendor limits.
Question 11
A server administrator is investigating a server issue involving dual power supply fault domains: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Treat two power cords sharing one upstream device as independent electrical redundancy.
- Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
- Place BMC access on an isolated management network, change default credentials, restrict administrator access and maintain supported firmware.
- Match the NIC, switch port, transceiver, cable medium and speed/duplex capability to the supported link standard.
Explanation
Correct Answer
B:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. For this case, A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance.
Incorrect Answers
A:This is the unsafe shortcut in the Dual power supply fault domains scenario, not a justified remediation or diagnostic. Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
C:This statement concerns Out-of-band management network, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
D:That option would match the NIC, switch port, transceiver, cable medium and speed/duplex capability to the supported link standard, but it addresses a different concern. Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
Question 12
While reviewing the CompTIA Server+ administration incident, a technician learns: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Memory configuration depends on CPU/socket population and validated channel topology, not only DIMM physical fit or total gigabytes.
- Preventive maintenance reduces recoverable downtime by detecting degrading components and planning compatible replacements.
- Rack placement must satisfy structural loading, chassis mounting specifications and designed airflow; a physically fitting rail is not proof of safe installation.
- Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
Explanation
Correct Answer
D:Applying it leads to this operational action: Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load. The acceptance test is: A planned single-path outage leaves the server powered without overloading the remaining path.
Incorrect Answers
A:This statement concerns CPU memory compatibility and population, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
B:This statement concerns Preventive hardware maintenance and spares, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
C:This statement concerns Rack weight, rail compatibility and airflow, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
Question 13
Before a server change is approved, the on-call engineer receives this incident report: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Inspect qualified hardware lists, slot/channel maps, POST logs, detected speeds and NUMA memory distribution.
- Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand.
- Treat two power cords sharing one upstream device as independent electrical redundancy.
- Inventory BMC firmware and accounts, scan exposed management interfaces and review management VLAN ACLs.
Explanation
Correct Answer
B:These observations investigate the exact Dual power supply fault domains failure rather than unrelated components. Incident: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance.
Incorrect Answers
A:For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand.
C:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. This is the unsafe shortcut in the Dual power supply fault domains scenario, not a justified remediation or diagnostic.
D:For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
Question 14
After the team implements a targeted remediation for Dual power supply fault domains, the original incident was: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- The port establishes the planned supported link speed with stable counters and no rising physical errors.
- Both planned storage paths are available and storage latency remains within limits during controlled network failover.
- The chassis is secured on compatible rails below rack capacity and sustained inlet and exhaust temperatures meet vendor limits.
- A planned single-path outage leaves the server powered without overloading the remaining path.
Explanation
Correct Answer
D:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. Incident: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance.
Incorrect Answers
A:This statement concerns NIC media and transceiver compatibility, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
B:This statement concerns iSCSI network isolation and MPIO, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
C:This statement concerns Rack weight, rail compatibility and airflow, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair.
Question 15
A change board is planning a verified response to this server event: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance. For the Dual power supply fault domains issue, which response elements belong in the approved plan? Select ONE best answer.
- Treat two power cords sharing one upstream device as independent electrical redundancy.
- Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load. Then validate the change by confirming: A planned single-path outage leaves the server powered without overloading the remaining path.
- Follow the motherboard and processor-qualified DIMM population map and validate supported capacity, speed, ranks and NUMA channel balance.
- Compare hypervisor or array size, guest device size, partition/LVM layout, filesystem type and mounted free-space readings.
Explanation
Correct Answer
B:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. The proposed change and outcome assessment work together for Dual power supply fault domains.
Incorrect Answers
A:This is the unsafe shortcut in the Dual power supply fault domains scenario, not a justified remediation or diagnostic. Incident: A critical server has two PSUs but both cords terminate in the same rack PDU scheduled for maintenance.
C:This statement concerns CPU memory compatibility and population, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair.
D:That option would compare hypervisor or array size, guest device size, partition/LVM layout, filesystem type and mounted free-space readings, but it addresses a different concern. Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
Question 16
A server administrator is investigating a server issue involving dual power supply fault domains: A remote data room powers both redundant PSUs through different outlets of one UPS, so a single UPS fault shuts the server off. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Treat two power cords sharing one upstream device as independent electrical redundancy.
- Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups.
- Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
- Rescan the device, extend the correct partition or volume manager layer and grow the supported filesystem using a backed-up change plan.
Explanation
Correct Answer
C:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A successful outcome is: A planned single-path outage leaves the server powered without overloading the remaining path.
Incorrect Answers
A:This is the unsafe shortcut in the Dual power supply fault domains scenario, not a justified remediation or diagnostic. Discriminate using: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand.
B:That option would choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups, but it addresses a different concern. Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
D:This statement concerns Filesystem growth after LUN expansion, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
Question 17
While reviewing the CompTIA Server+ administration incident, a technician learns: A remote data room powers both redundant PSUs through different outlets of one UPS, so a single UPS fault shuts the server off. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Block-device capacity, partition or logical-volume capacity and filesystem capacity are separate layers that must be reconciled.
- RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
- Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
- Preventive maintenance reduces recoverable downtime by detecting degrading components and planning compatible replacements.
Explanation
Correct Answer
C:Applying it leads to this operational action: Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load. This is the controlling principle for the reported Dual power supply fault domains incident.
Incorrect Answers
A:This statement concerns Filesystem growth after LUN expansion, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair.
B:This statement concerns RAID fault tolerance versus performance, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
D:This statement concerns Preventive hardware maintenance and spares, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
Question 18
Before a server change is approved, the on-call engineer receives this incident report: A remote data room powers both redundant PSUs through different outlets of one UPS, so a single UPS fault shuts the server off. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Correlate sensor alarms, fault trends, part numbers, vendor lifecycle notices and support response agreements.
- Review chassis and rack load documents, weight distribution, rail part numbers, inlet temperature and actual front/rear clearances.
- Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand.
- Treat two power cords sharing one upstream device as independent electrical redundancy.
Explanation
Correct Answer
C:These observations investigate the exact Dual power supply fault domains failure rather than unrelated components. The expected technical relationship is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
Incorrect Answers
A:For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. This statement concerns Preventive hardware maintenance and spares, a different Server+ technical control.
B:For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. This statement concerns Rack weight, rail compatibility and airflow, a different Server+ technical control.
D:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. Discriminate using: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand.
Question 19
After the team implements a targeted remediation for Dual power supply fault domains, the original incident was: A remote data room powers both redundant PSUs through different outlets of one UPS, so a single UPS fault shuts the server off. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- Only authorized administrators can reach and authenticate to the updated BMC over the isolated path.
- The port establishes the planned supported link speed with stable counters and no rising physical errors.
- A planned single-path outage leaves the server powered without overloading the remaining path.
- The correct mounted filesystem reflects the new usable capacity without data loss and application writes succeed.
Explanation
Correct Answer
C:Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. The remediation is: Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
Incorrect Answers
A:This statement concerns Out-of-band management network, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
B:This statement concerns NIC media and transceiver compatibility, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. A targeted investigation checks: Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
D:This statement concerns Filesystem growth after LUN expansion, a different Server+ technical control. It does not directly address the reported Dual power supply fault domains fault or prove its repair. For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
Question 20
A change board is planning a verified response to this server event: A remote data room powers both redundant PSUs through different outlets of one UPS, so a single UPS fault shuts the server off. For the Dual power supply fault domains issue, which response elements belong in the approved plan? Select TWO answers.
- Only authorized administrators can reach and authenticate to the updated BMC over the isolated path.
- Trace PSU cords through PDU, UPS and breaker paths; compare load and failover ratings against peak demand.
- Treat two power cords sharing one upstream device as independent electrical redundancy.
- Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
- Use lifecycle and alert data to schedule preventive maintenance, stock qualified critical spares and document replacement runbooks.
Explanation
Correct Answer
B:These observations investigate the exact Dual power supply fault domains failure rather than unrelated components. Use findings to decide whether to: Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
D:A successful outcome is: A planned single-path outage leaves the server powered without overloading the remaining path.
Incorrect Answers
A:For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. This statement concerns Out-of-band management network, a different Server+ technical control.
C:Instead, the supported correction is: Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
E:For this incident, the relevant principle is: Two PSUs are not a redundant power design when both depend on one upstream power device or circuit. The desired recovery condition is: A planned single-path outage leaves the server powered without overloading the remaining path.
