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CompTIA SK0-005 Practice Test 62

Question 610

A change board is planning a verified response to this server event: A rack server throttles every afternoon although CPU utilization is modest; inlet sensors show a blocked cold-air intake. For the Thermal shutdown and heatsink diagnostics issue, which response elements belong in the approved plan? Select TWO answers.

  1. Contain unapproved egress, preserve flow and endpoint evidence and validate allowed destinations before reopening paths.
  2. Transfer throughput and latency recover while physical error counters remain stable.
  3. Compare inlet/CPU temperatures, fan RPM, heatsink seating, thermal history and throttling event logs.
  4. Inspect cooling path, heatsink mounting and sensor telemetry, then correct the thermal fault before increasing load.
  5. Disable thermal protections to keep an overheating server online.

Explanation

Correct Answer

C:

These observations investigate the exact Thermal shutdown and heatsink diagnostics failure rather than unrelated components. Confirm remediation through: Sustained stress tests run within component thermal limits without unexpected throttling or shutdown.

D:

Thermal throttling and protective shutdown may result from heat transfer or airflow faults even without high average CPU use. For this case, A rack server throttles every afternoon although CPU utilization is modest; inlet sensors show a blocked cold-air intake.

Incorrect Answers

A:

For this incident, the relevant principle is: Thermal throttling and protective shutdown may result from heat transfer or airflow faults even without high average CPU use. The desired recovery condition is: Sustained stress tests run within component thermal limits without unexpected throttling or shutdown.

B:

For this incident, the relevant principle is: Thermal throttling and protective shutdown may result from heat transfer or airflow faults even without high average CPU use. It does not directly address the reported Thermal shutdown and heatsink diagnostics fault or prove its repair.

E:

Discriminate using: Compare inlet/CPU temperatures, fan RPM, heatsink seating, thermal history and throttling event logs.

Question 611

A server administrator is investigating a server issue involving psu and power event isolation: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Inspect cooling path, heatsink mounting and sensor telemetry, then correct the thermal fault before increasing load.
  2. Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure.
  3. Correlate ECC and memory training events with physical slots, then replace faulty qualified DIMMs using approved service steps.
  4. Replace random PSUs without checking the shared upstream power source.

Explanation

Correct Answer

B:

A successful outcome is: The host survives the designed single-power-path failure without reset or overcurrent.

Incorrect Answers

A:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.

C:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. Incident: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU.

D:

This is the unsafe shortcut in the PSU and power event isolation scenario, not a justified remediation or diagnostic. Incident: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU.

Question 612

While reviewing the CompTIA Server+ administration incident, a technician learns: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.
  2. Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules.
  3. Unusual outbound volume and destinations may indicate exfiltration; investigation must preserve evidence and scope blast radius.
  4. Link-up alone does not establish link quality; CRC, FCS, drops and duplex mismatches reveal layer-one or layer-two faults.

Explanation

Correct Answer

B:

The acceptance test is: The host survives the designed single-power-path failure without reset or overcurrent.

Incorrect Answers

A:

This statement concerns SAN fabric multipath failover and latency, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

C:

This statement concerns Unauthorized outbound traffic and exfiltration detection, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

D:

This statement concerns NIC port errors and duplex mismatch, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

Question 613

Before a server change is approved, the on-call engineer receives this incident report: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.
  2. Inspect interface counters at both ends, cable tests, transceiver diagnostics and negotiated parameters.
  3. Examine SEL/IPMI ECC counters, DIMM slot map, BIOS updates and controlled memory diagnostics.
  4. Replace random PSUs without checking the shared upstream power source.

Explanation

Correct Answer

A:

These observations investigate the exact PSU and power event isolation failure rather than unrelated components. Incident: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU.

Incorrect Answers

B:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns NIC port errors and duplex mismatch, a different Server+ technical control.

C:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns Correctable ECC error escalation, a different Server+ technical control.

D:

This is the unsafe shortcut in the PSU and power event isolation scenario, not a justified remediation or diagnostic. Discriminate using: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.

Question 614

After the team implements a targeted remediation for PSU and power event isolation, the original incident was: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. Sustained stress tests run within component thermal limits without unexpected throttling or shutdown.
  2. The host survives the designed single-power-path failure without reset or overcurrent.
  3. Unapproved outbound flows stop, legitimate data transfers remain and incident findings are documented.
  4. Clients obtain unique approved addresses and correct gateways without duplicate-IP warnings.

Explanation

Correct Answer

B:

This evidence tests whether the original PSU and power event isolation weakness has been corrected under realistic conditions. The remediation is: Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure. The underlying technical reason is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. Compare against pre-change evidence: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.

Incorrect Answers

A:

This statement concerns Thermal shutdown and heatsink diagnostics, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

C:

This statement concerns Unauthorized outbound traffic and exfiltration detection, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair.

D:

This statement concerns DHCP and IP address conflict isolation, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

Question 615

A change board is planning a verified response to this server event: One server resets whenever the second PSU is removed, revealing both feeds depend on a failing upstream PDU. For the PSU and power event isolation issue, which response elements belong in the approved plan? Select ONE best answer.

  1. Resolve physical media and negotiated speed/duplex compatibility, replacing defective optics or cabling as evidence dictates.
  2. Replace random PSUs without checking the shared upstream power source.
  3. Review EDR process trees, scheduled tasks, outbound connections, privileged logins and related host indicators.
  4. Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure. Then validate the change by confirming: The host survives the designed single-power-path failure without reset or overcurrent.

Explanation

Correct Answer

D:

This avoids the unsafe shortcut: Replace random PSUs without checking the shared upstream power source.

Incorrect Answers

A:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

B:

This is the unsafe shortcut in the PSU and power event isolation scenario, not a justified remediation or diagnostic. Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules.

C:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns Malware persistence and containment, a different Server+ technical control.

Question 616

A server administrator is investigating a server issue involving psu and power event isolation: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Correct access/trunk VLAN membership and allowed VLAN lists while preserving intended segmentation.
  2. Test client resolvers and cached records, correct zone or resolver settings and honor TTL behavior.
  3. Replace random PSUs without checking the shared upstream power source.
  4. Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure.

Explanation

Correct Answer

D:

A successful outcome is: The host survives the designed single-power-path failure without reset or overcurrent.

Incorrect Answers

A:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control.

B:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns DNS client-specific failure, a different Server+ technical control.

C:

This is the unsafe shortcut in the PSU and power event isolation scenario, not a justified remediation or diagnostic. Incident: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage.

Question 617

While reviewing the CompTIA Server+ administration incident, a technician learns: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Name resolution failures should be isolated from transport connectivity by comparing direct IP and DNS queries.
  2. Tagged VLAN traffic must be permitted end-to-end; routing changes do not repair a missing layer-two VLAN path.
  3. Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules.
  4. Reachability requires valid bidirectional paths and compatible state tracking, not only an outbound SYN packet.

Explanation

Correct Answer

C:

The acceptance test is: The host survives the designed single-power-path failure without reset or overcurrent. This is the controlling principle for the reported PSU and power event isolation incident.

Incorrect Answers

A:

This statement concerns DNS client-specific failure, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

B:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

D:

This statement concerns Routing and stateful firewall asymmetry, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

Question 618

Before a server change is approved, the on-call engineer receives this incident report: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Compare inlet/CPU temperatures, fan RPM, heatsink seating, thermal history and throttling event logs.
  2. Replace random PSUs without checking the shared upstream power source.
  3. Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.
  4. Trace route tables, firewall session logs, interface captures and asymmetric path metrics.

Explanation

Correct Answer

C:

These observations investigate the exact PSU and power event isolation failure rather than unrelated components. Confirm remediation through: The host survives the designed single-power-path failure without reset or overcurrent.

Incorrect Answers

A:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns Thermal shutdown and heatsink diagnostics, a different Server+ technical control.

B:

Discriminate using: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.

D:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. This statement concerns Routing and stateful firewall asymmetry, a different Server+ technical control.

Question 619

After the team implements a targeted remediation for PSU and power event isolation, the original incident was: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. Only intended VLANs traverse the trunk and test VMs reach their approved peers.
  2. Affected systems are contained, persistent mechanisms removed and monitored restoration shows no renewed indicators.
  3. Hardware reports no recurring ECC faults and memory validation passes under representative load.
  4. The host survives the designed single-power-path failure without reset or overcurrent.

Explanation

Correct Answer

D:

This evidence tests whether the original PSU and power event isolation weakness has been corrected under realistic conditions. The remediation is: Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure. The underlying technical reason is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. Compare against pre-change evidence: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.

Incorrect Answers

A:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair.

B:

This statement concerns Malware persistence and containment, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

C:

This statement concerns Correctable ECC error escalation, a different Server+ technical control. It does not directly address the reported PSU and power event isolation fault or prove its repair. For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. A targeted investigation checks: Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams. The desired recovery condition is: The host survives the designed single-power-path failure without reset or overcurrent.

Question 620

A change board is planning a verified response to this server event: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage. For the PSU and power event isolation issue, which response elements belong in the approved plan? Select TWO answers.

  1. Replace random PSUs without checking the shared upstream power source.
  2. Inspect forward/return routing, gateway selection and stateful firewall rules; correct the narrow route or policy.
  3. Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.
  4. Hardware reports no recurring ECC faults and memory validation passes under representative load.
  5. Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure.

Explanation

Correct Answer

C:

These observations investigate the exact PSU and power event isolation failure rather than unrelated components. Incident: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage.

E:

A successful outcome is: The host survives the designed single-power-path failure without reset or overcurrent. This is the appropriate targeted correction for PSU and power event isolation.

Incorrect Answers

A:

Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules.

B:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. It does not directly address the reported PSU and power event isolation fault or prove its repair.

D:

For this incident, the relevant principle is: Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules. Incident: A host reports intermittent power-loss events even though its PSU lights are green; the UPS logs overloads during peak usage.

CompTIA Server+ Certification Exam (SK0-005) Practice Tests