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CompTIA SK0-005 Practice Test 67

Question 660

A change board is planning a verified response to this server event: A web application fails to upload files when a user quota is reached, although the hosting filesystem reports ample free blocks. For the Filesystem full, inode exhaustion and quotas issue, which response elements belong in the approved plan? Select TWO answers.

  1. Expand the storage LUN whenever an application reports ENOSPC without checking inode or quota conditions.
  2. Identify whether blocks, inodes, quotas or reserved space is exhausted; reclaim or expand only the constrained resource.
  3. Resolve physical media and negotiated speed/duplex compatibility, replacing defective optics or cabling as evidence dictates.
  4. Protected cache operation is restored and write latency improves without compromising in-flight write safety.
  5. Compare df -h and df -i, user quotas, deleted-open files and per-directory usage.

Explanation

Correct Answer

B:

Filesystem write failures can arise from inode or quota limits as well as free-block exhaustion. A successful outcome is: The affected application can write while block, inode and quota headroom meet policy.

E:

These observations investigate the exact Filesystem full, inode exhaustion and quotas failure rather than unrelated components. The expected technical relationship is: Filesystem write failures can arise from inode or quota limits as well as free-block exhaustion.

Incorrect Answers

A:

This is the unsafe shortcut in the Filesystem full, inode exhaustion and quotas scenario, not a justified remediation or diagnostic. Discriminate using: Compare df -h and df -i, user quotas, deleted-open files and per-directory usage.

C:

This statement concerns NIC port errors and duplex mismatch, a different Server+ technical control. It does not directly address the reported Filesystem full, inode exhaustion and quotas fault or prove its repair.

D:

This statement concerns Write cache battery and storage performance, a different Server+ technical control. It does not directly address the reported Filesystem full, inode exhaustion and quotas fault or prove its repair.

Question 661

A server administrator is investigating a server issue involving san fabric multipath failover and latency: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Disable multipath and route all storage I/O through the already degraded link.
  2. Back up critical data, inspect controller/media events, replace failed components and rebuild with monitored redundancy.
  3. Validate zoning, masking, path policies and fabric independence; restore optimized healthy multipath.
  4. Identify whether blocks, inodes, quotas or reserved space is exhausted; reclaim or expand only the constrained resource.

Explanation

Correct Answer

C:

A successful outcome is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Incorrect Answers

A:

This is the unsafe shortcut in the SAN fabric multipath failover and latency scenario, not a justified remediation or diagnostic. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

B:

This statement concerns RAID degraded state and predictive drive failure, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

D:

That option would identify whether blocks, inodes, quotas or reserved space is exhausted; reclaim or expand only the constrained resource, but it addresses a different concern. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

Question 662

While reviewing the CompTIA Server+ administration incident, a technician learns: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces. 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. A close timeline between change and failure is a hypothesis to test, not automatic proof of cause.
  3. Boot failures may arise before services start; distinguish firmware/bootloader problems from application outages.
  4. Write-back caching requires reliable protected power or flash persistence; disabling cache can raise latency for safety.

Explanation

Correct Answer

A:

The acceptance test is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Incorrect Answers

B:

This statement concerns OS patch regression and rollback, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

C:

This statement concerns Boot loader and failed update recovery, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

D:

This statement concerns Write cache battery and storage performance, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Question 663

Before a server change is approved, the on-call engineer receives this incident report: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Examine controller cache mode, BBU/flash status, workload write latency and vendor alerts.
  2. Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics.
  3. Read RAID member status, SMART/media diagnostics, backplane events, parity consistency and backup freshness.
  4. Disable multipath and route all storage I/O through the already degraded link.

Explanation

Correct Answer

B:

These observations investigate the exact SAN fabric multipath failover and latency failure rather than unrelated components. Incident: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces.

Incorrect Answers

A:

For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics.

C:

For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

D:

Instead, the supported correction is: Validate zoning, masking, path policies and fabric independence; restore optimized healthy multipath. This is the unsafe shortcut in the SAN fabric multipath failover and latency scenario, not a justified remediation or diagnostic.

Question 664

After the team implements a targeted remediation for SAN fabric multipath failover and latency, the original incident was: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. The application passes functional load tests without repeating its prior exceptions.
  2. A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.
  3. The affected application can write while block, inode and quota headroom meet policy.
  4. The host boots the approved OS reliably through several cold boots with disk access intact.

Explanation

Correct Answer

B:

Multipath configuration must be tested across real fabric failures and correct asymmetric access states. Incident: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces.

Incorrect Answers

A:

This statement concerns Application crash and dependency triage, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

C:

This statement concerns Filesystem full, inode exhaustion and quotas, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

D:

This statement concerns Boot loader and failed update recovery, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair.

Question 665

A change board is planning a verified response to this server event: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces. For the SAN fabric multipath failover and latency issue, which response elements belong in the approved plan? Select ONE best answer.

  1. Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.
  2. Validate zoning, masking, path policies and fabric independence; restore optimized healthy multipath. Then validate the change by confirming: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.
  3. Inspect cache-protection health and replace or restore supported battery/flash protection before using safe cache policy.
  4. Disable multipath and route all storage I/O through the already degraded link.

Explanation

Correct Answer

B:

Before modifying systems, gather: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics.

Incorrect Answers

A:

That option would review PSU fault logs, UPS/PDU event history, load measurements and path diagrams, but it addresses a different concern. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

C:

That option would inspect cache-protection health and replace or restore supported battery/flash protection before using safe cache policy, but it addresses a different concern. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

D:

This is the unsafe shortcut in the SAN fabric multipath failover and latency scenario, not a justified remediation or diagnostic. Incident: A storage host freezes during fabric maintenance because both HBA sessions use the same SAN switch despite two visible interfaces.

Question 666

A server administrator is investigating a server issue involving san fabric multipath failover and latency: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Disable multipath and route all storage I/O through the already degraded link.
  2. Escalate using evidence and severity thresholds, apply a reversible supported workaround and remove temporary exceptions after root-cause review.
  3. Correct access/trunk VLAN membership and allowed VLAN lists while preserving intended segmentation.
  4. Validate zoning, masking, path policies and fabric independence; restore optimized healthy multipath.

Explanation

Correct Answer

D:

A successful outcome is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Incorrect Answers

A:

This is the unsafe shortcut in the SAN fabric multipath failover and latency scenario, not a justified remediation or diagnostic. Incident: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby.

B:

This statement concerns Escalation, rollback and post-incident closure, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

C:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Question 667

While reviewing the CompTIA Server+ administration incident, a technician learns: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby. 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. Incident resolution includes timely escalation, safe rollback and documented follow-through, not just a green monitor.
  3. Boot failures may arise before services start; distinguish firmware/bootloader problems from application outages.
  4. Tagged VLAN traffic must be permitted end-to-end; routing changes do not repair a missing layer-two VLAN path.

Explanation

Correct Answer

A:

The acceptance test is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Incorrect Answers

B:

This statement concerns Escalation, rollback and post-incident closure, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair.

C:

This statement concerns Boot loader and failed update recovery, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

D:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair.

Question 668

Before a server change is approved, the on-call engineer receives this incident report: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries.
  2. Examine controller cache mode, BBU/flash status, workload write latency and vendor alerts.
  3. Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics.
  4. Disable multipath and route all storage I/O through the already degraded link.

Explanation

Correct Answer

C:

These observations investigate the exact SAN fabric multipath failover and latency failure rather than unrelated components. Incident: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby.

Incorrect Answers

A:

For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

B:

For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. This statement concerns Write cache battery and storage performance, a different Server+ technical control.

D:

Instead, the supported correction is: Validate zoning, masking, path policies and fabric independence; restore optimized healthy multipath. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

Question 669

After the team implements a targeted remediation for SAN fabric multipath failover and latency, the original incident was: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.
  2. The affected application can write while block, inode and quota headroom meet policy.
  3. Service is restored within response targets, temporary risk is removed and a reproducible fix is documented.
  4. The host survives the designed single-power-path failure without reset or overcurrent.

Explanation

Correct Answer

A:

Multipath configuration must be tested across real fabric failures and correct asymmetric access states. Incident: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby.

Incorrect Answers

B:

This statement concerns Filesystem full, inode exhaustion and quotas, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

C:

This statement concerns Escalation, rollback and post-incident closure, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

D:

This statement concerns PSU and power event isolation, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states. A targeted investigation checks: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics. The desired recovery condition is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths.

Question 670

A change board is planning a verified response to this server event: An application experiences high read latency after an array path change, and MPIO marks the optimized path failed while using a slow standby. For the SAN fabric multipath failover and latency issue, which response elements belong in the approved plan? Select TWO answers.

  1. Validate zoning, masking, path policies and fabric independence; restore optimized healthy multipath.
  2. The affected application can write while block, inode and quota headroom meet policy.
  3. Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics.
  4. Restore the supported boot entry or known-good kernel and rebuild boot images as needed using tested recovery media.
  5. Disable multipath and route all storage I/O through the already degraded link.

Explanation

Correct Answer

A:

A successful outcome is: A single-fabric outage causes no I/O loss and service returns to expected latency on supported paths. Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

C:

These observations investigate the exact SAN fabric multipath failover and latency failure rather than unrelated components. The expected technical relationship is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

Incorrect Answers

B:

This statement concerns Filesystem full, inode exhaustion and quotas, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair.

D:

This statement concerns Boot loader and failed update recovery, a different Server+ technical control. It does not directly address the reported SAN fabric multipath failover and latency fault or prove its repair. For this incident, the relevant principle is: Multipath configuration must be tested across real fabric failures and correct asymmetric access states.

E:

This is the unsafe shortcut in the SAN fabric multipath failover and latency scenario, not a justified remediation or diagnostic. Discriminate using: Capture MPIO path health, initiator sessions, SAN switch errors and storage-array controller port statistics.

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