CompTIA SK0-005 Practice Test 6
Question 50
A change board is planning a verified response to this server event: A storage server's copper NIC negotiates only 1 Gb/s because the cable category and switch port do not support the requested 10 Gb/s mode. For the NIC media and transceiver compatibility issue, which response elements belong in the approved plan? Select TWO answers.
- Force higher interface speed in software without checking optics, cable and switch capability.
- Match the NIC, switch port, transceiver, cable medium and speed/duplex capability to the supported link standard.
- Check NIC and switch support lists, module part IDs, cable labels, optical power, port errors and negotiated speed.
- Firmware reports the expected usable capacity and approved speed, with balanced populated channels and no training errors.
- Provide compatible spare capacity and interface, replace the failed member, monitor the rebuild and verify array redundancy after completion.
Explanation
Correct Answer
B:Physical Ethernet links require interoperable media and interfaces; configuring an IP address cannot fix incompatible layer-one optics. This is the appropriate targeted correction for NIC media and transceiver compatibility.
C:These observations investigate the exact NIC media and transceiver compatibility failure rather than unrelated components. Confirm remediation through: The port establishes the planned supported link speed with stable counters and no rising physical errors.
Incorrect Answers
A:Incident: A storage server's copper NIC negotiates only 1 Gb/s because the cable category and switch port do not support the requested 10 Gb/s mode.
D:This statement concerns CPU memory compatibility and population, a different Server+ technical control. It does not directly address the reported NIC media and transceiver compatibility fault or prove its repair. For this incident, the relevant principle is: Physical Ethernet links require interoperable media and interfaces; configuring an IP address cannot fix incompatible layer-one optics.
E:This statement concerns Hot spare eligibility and rebuild supervision, a different Server+ technical control. It does not directly address the reported NIC media and transceiver compatibility fault or prove its repair.
Question 51
A server administrator is investigating a server issue involving raid fault tolerance versus performance: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Use dedicated or appropriately isolated iSCSI paths with supported MPIO, correct initiator/target configuration and measured QoS.
- Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups.
- Assume that any RAID level, including striping without parity, guarantees single-disk survival.
- Provide compatible spare capacity and interface, replace the failed member, monitor the rebuild and verify array redundancy after completion.
Explanation
Correct Answer
B:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. This is the appropriate targeted correction for RAID fault tolerance versus performance.
Incorrect Answers
A:That option would use dedicated or appropriately isolated iSCSI paths with supported MPIO, correct initiator/target configuration and measured QoS, but it addresses a different concern. RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
C:This is the unsafe shortcut in the RAID fault tolerance versus performance scenario, not a justified remediation or diagnostic. Incident: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure.
D:This statement concerns Hot spare eligibility and rebuild supervision, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
Question 52
While reviewing the CompTIA Server+ administration incident, a technician learns: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Flash storage performance and life depend on workload write intensity, remaining spare blocks and device health telemetry.
- 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.
- SAN high availability requires correctly presented LUNs over multiple independent usable fabric paths, not redundant cables alone.
Explanation
Correct Answer
C:Applying it leads to this operational action: Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups. This is the controlling principle for the reported RAID fault tolerance versus performance incident.
Incorrect Answers
A:This statement concerns NVMe endurance and capacity monitoring, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
B:This statement concerns Filesystem growth after LUN expansion, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
D:This statement concerns Fibre Channel SAN zoning and multipath, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
Question 53
Before a server change is approved, the on-call engineer receives this incident report: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Review daily written bytes, manufacturer endurance ratings, NVMe critical warnings, percent-used and latency statistics.
- Assume that any RAID level, including striping without parity, guarantees single-disk survival.
- Inspect initiator sessions, target portals, VLAN paths, MTU agreement, switch queue drops and MPIO status.
- Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates.
Explanation
Correct Answer
D:These observations investigate the exact RAID fault tolerance versus performance failure rather than unrelated components. Incident: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure.
Incorrect Answers
A:For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates.
B:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. This is the unsafe shortcut in the RAID fault tolerance versus performance scenario, not a justified remediation or diagnostic.
C:For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. Incident: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure.
Question 54
After the team implements a targeted remediation for RAID fault tolerance versus performance, the original incident was: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
- The chassis is secured on compatible rails below rack capacity and sustained inlet and exhaust temperatures meet vendor limits.
- The rebuild completes without new errors and the controller reports all expected redundancy restored.
- The host sees the intended LUN with active or standby paths on both fabrics and survives a single-fabric maintenance test.
Explanation
Correct Answer
A:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. Incident: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure.
Incorrect Answers
B:This statement concerns Rack weight, rail compatibility and airflow, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
C:This statement concerns Hot spare eligibility and rebuild supervision, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair.
D:This statement concerns Fibre Channel SAN zoning and multipath, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair.
Question 55
A change board is planning a verified response to this server event: A database server uses RAID 0 for transaction volumes because it benchmarks fast, but the service-level objective requires surviving a disk failure. For the RAID fault tolerance versus performance issue, which response elements belong in the approved plan? Select ONE best answer.
- Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups. Then validate the change by confirming: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
- Correlate sensor alarms, fault trends, part numbers, vendor lifecycle notices and support response agreements.
- Assume that any RAID level, including striping without parity, guarantees single-disk survival.
- Select enterprise SSD endurance for the expected write volume and monitor NVMe health, utilization and replacement thresholds.
Explanation
Correct Answer
A:This avoids the unsafe shortcut: Assume that any RAID level, including striping without parity, guarantees single-disk survival.
Incorrect Answers
B:For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. This statement concerns Preventive hardware maintenance and spares, a different Server+ technical control.
C:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. Discriminate using: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates.
D:For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. This statement concerns NVMe endurance and capacity monitoring, a different Server+ technical control.
Question 56
A server administrator is investigating a server issue involving raid fault tolerance versus performance: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Connect redundant PSUs to independently protected PDU and UPS paths where available; size each path to carry the required load.
- Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups.
- Check component hot-swap support, follow power isolation requirements and use approved ESD handling procedures.
- Assume that any RAID level, including striping without parity, guarantees single-disk survival.
Explanation
Correct Answer
B:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. For this case, A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity.
Incorrect Answers
A:This statement concerns Dual power supply fault domains, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
C:That option would check component hot-swap support, follow power isolation requirements and use approved ESD handling procedures, but it addresses a different concern. RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
D:This is the unsafe shortcut in the RAID fault tolerance versus performance scenario, not a justified remediation or diagnostic. Incident: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity.
Question 57
While reviewing the CompTIA Server+ administration incident, a technician learns: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Serviceable components differ in whether live replacement is safe, while electrostatic discharge can damage electronics even when mains power is removed.
- Two PSUs are not a redundant power design when both depend on one upstream power device or circuit.
- RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
- Flash storage performance and life depend on workload write intensity, remaining spare blocks and device health telemetry.
Explanation
Correct Answer
C:Applying it leads to this operational action: Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups.
Incorrect Answers
A:This statement concerns ESD and hot-swap replacement procedure, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
B:This statement concerns Dual power supply fault domains, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair.
D:This statement concerns NVMe endurance and capacity monitoring, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
Question 58
Before a server change is approved, the on-call engineer receives this incident report: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates.
- Review daily written bytes, manufacturer endurance ratings, NVMe critical warnings, percent-used and latency statistics.
- Assume that any RAID level, including striping without parity, guarantees single-disk survival.
- Compare hypervisor or array size, guest device size, partition/LVM layout, filesystem type and mounted free-space readings.
Explanation
Correct Answer
A:These observations investigate the exact RAID fault tolerance versus performance failure rather than unrelated components. Incident: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity.
Incorrect Answers
B:For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. Incident: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity.
C:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. Incident: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity.
D:For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. This statement concerns Filesystem growth after LUN expansion, a different Server+ technical control.
Question 59
After the team implements a targeted remediation for RAID fault tolerance versus performance, the original incident was: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- A planned single-path outage leaves the server powered without overloading the remaining path.
- Both planned storage paths are available and storage latency remains within limits during controlled network failover.
- The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
- The rebuild completes without new errors and the controller reports all expected redundancy restored.
Explanation
Correct Answer
C:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. This evidence tests whether the original RAID fault tolerance versus performance weakness has been corrected under realistic conditions.
Incorrect Answers
A:This statement concerns Dual power supply fault domains, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
B:This statement concerns iSCSI network isolation and MPIO, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
D:This statement concerns Hot spare eligibility and rebuild supervision, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair. For this incident, the relevant principle is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. A targeted investigation checks: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates. The desired recovery condition is: The selected array meets latency and capacity targets and remains accessible during the specified supported drive failure.
Question 60
A change board is planning a verified response to this server event: A file server with small random writes is being migrated from mirrored disks to a parity-only stripe solely to maximize reported usable capacity. For the RAID fault tolerance versus performance issue, which response elements belong in the approved plan? Select TWO answers.
- Both planned storage paths are available and storage latency remains within limits during controlled network failover.
- Choose a RAID level that meets measured capacity, write profile and disk-failure tolerance requirements, and retain independent backups.
- Assume that any RAID level, including striping without parity, guarantees single-disk survival.
- Select enterprise SSD endurance for the expected write volume and monitor NVMe health, utilization and replacement thresholds.
- Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates.
Explanation
Correct Answer
B:RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup. Before rollout, confirm the problem with: Review workload I/O pattern, required fault tolerance, array health, usable capacity and rebuild time estimates.
E:These observations investigate the exact RAID fault tolerance versus performance failure rather than unrelated components. The expected technical relationship is: RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
Incorrect Answers
A:This statement concerns iSCSI network isolation and MPIO, a different Server+ technical control. It does not directly address the reported RAID fault tolerance versus performance fault or prove its repair.
C:This is the unsafe shortcut in the RAID fault tolerance versus performance scenario, not a justified remediation or diagnostic. RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
D:That option would select enterprise SSD endurance for the expected write volume and monitor NVMe health, utilization and replacement thresholds, but it addresses a different concern. RAID 0 offers no disk fault tolerance; parity and mirrors have different write and rebuild characteristics, and none replaces backup.
