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CompTIA SK0-005 Practice Test 58

Question 570

A change board is planning a verified response to this server event: An organization successfully fails over a database but lacks a tested method to reconcile writes and return to the primary site. For the Site failover dependencies and failback issue, which response elements belong in the approved plan? Select TWO answers.

  1. Assume starting the application VM at a second site constitutes full disaster recovery.
  2. Include identity, DNS, network, certificates and data-dependency order in failover and failback runbooks; rehearse both directions.
  3. Enable appropriate data-at-rest encryption with separated, access-controlled key storage, recovery procedures and rotation policy.
  4. A rehearsal restores end-to-end service within RTO and loses no more than allowed by RPO.
  5. Check service dependency map, replicated identity/DNS reachability, endpoint changes and data consistency during drill.

Explanation

Correct Answer

B:

Recovery is a dependency graph, not a collection of powered-on VMs; failback can require careful data reconciliation. Before rollout, confirm the problem with: Check service dependency map, replicated identity/DNS reachability, endpoint changes and data consistency during drill.

E:

These observations investigate the exact Site failover dependencies and failback failure rather than unrelated components. The expected technical relationship is: Recovery is a dependency graph, not a collection of powered-on VMs; failback can require careful data reconciliation.

Incorrect Answers

A:

Discriminate using: Check service dependency map, replicated identity/DNS reachability, endpoint changes and data consistency during drill.

C:

That option would enable appropriate data-at-rest encryption with separated, access-controlled key storage, recovery procedures and rotation policy, but it addresses a different concern. Recovery is a dependency graph, not a collection of powered-on VMs; failback can require careful data reconciliation.

D:

This statement concerns RPO and RTO-driven disaster recovery, a different Server+ technical control. It does not directly address the reported Site failover dependencies and failback fault or prove its repair.

Question 571

A server administrator is investigating a server issue involving structured troubleshooting hypothesis and controlled change: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Collect time-synchronized logs, hardware alerts and relevant volatile evidence according to incident procedures before destructive action.
  2. Make many unrelated configuration changes at once and select the apparent fix afterward.
  3. Escalate using evidence and severity thresholds, apply a reversible supported workaround and remove temporary exceptions after root-cause review.
  4. Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence.

Explanation

Correct Answer

D:

Before rollout, confirm the problem with: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

Incorrect Answers

A:

This statement concerns Log correlation and evidence preservation, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

B:

This is the unsafe shortcut in the Structured troubleshooting hypothesis and controlled change scenario, not a justified remediation or diagnostic. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

C:

This statement concerns Escalation, rollback and post-incident closure, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

Question 572

While reviewing the CompTIA Server+ administration incident, a technician learns: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. A close timeline between change and failure is a hypothesis to test, not automatic proof of cause.
  2. Thermal throttling and protective shutdown may result from heat transfer or airflow faults even without high average CPU use.
  3. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.
  4. Reachability requires valid bidirectional paths and compatible state tracking, not only an outbound SYN packet.

Explanation

Correct Answer

C:

Applying it leads to this operational action: Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence. Collect evidence first: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

Incorrect Answers

A:

This statement concerns OS patch regression and rollback, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

B:

This statement concerns Thermal shutdown and heatsink diagnostics, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

D:

This statement concerns Routing and stateful firewall asymmetry, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

Question 573

Before a server change is approved, the on-call engineer receives this incident report: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Check outage severity, vendor case criteria, change ticket, workaround expiry and root cause evidence.
  2. Make many unrelated configuration changes at once and select the apparent fix afterward.
  3. Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.
  4. Trace route tables, firewall session logs, interface captures and asymmetric path metrics.

Explanation

Correct Answer

C:

These observations investigate the exact Structured troubleshooting hypothesis and controlled change failure rather than unrelated components. Incident: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state.

Incorrect Answers

A:

For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

B:

Instead, the supported correction is: Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence. This is the unsafe shortcut in the Structured troubleshooting hypothesis and controlled change scenario, not a justified remediation or diagnostic.

D:

For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

Question 574

After the team implements a targeted remediation for Structured troubleshooting hypothesis and controlled change, the original incident was: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. A traceable incident timeline identifies the failing component or service without destroying relevant records.
  2. Only intended VLANs traverse the trunk and test VMs reach their approved peers.
  3. The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.
  4. The fault disappears under an approved version with no unrelated security controls disabled.

Explanation

Correct Answer

C:

A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. Incident: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state.

Incorrect Answers

A:

This statement concerns Log correlation and evidence preservation, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair.

B:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

D:

This statement concerns OS patch regression and rollback, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair.

Question 575

A change board is planning a verified response to this server event: A web API fails after a network change, and several administrators simultaneously modify firewall rules without recording the original state. For the Structured troubleshooting hypothesis and controlled change issue, which response elements belong in the approved plan? Select ONE best answer.

  1. Inspect forward/return routing, gateway selection and stateful firewall rules; correct the narrow route or policy.
  2. Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence. Then validate the change by confirming: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.
  3. Inspect source IP patterns, failed/successful sign-ins, privileged access rules and MFA challenges.
  4. Make many unrelated configuration changes at once and select the apparent fix afterward.

Explanation

Correct Answer

B:

Before modifying systems, gather: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

Incorrect Answers

A:

That option would inspect forward/return routing, gateway selection and stateful firewall rules; correct the narrow route or policy, but it addresses a different concern. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

C:

That option would inspect source IP patterns, failed/successful sign-ins, privileged access rules and MFA challenges, but it addresses a different concern. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

D:

This is the unsafe shortcut in the Structured troubleshooting hypothesis and controlled change scenario, not a justified remediation or diagnostic. Discriminate using: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

Question 576

A server administrator is investigating a server issue involving structured troubleshooting hypothesis and controlled change: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Test client resolvers and cached records, correct zone or resolver settings and honor TTL behavior.
  2. Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence.
  3. Isolate affected hosts, preserve evidence and investigate persistence and lateral movement before controlled remediation.
  4. Make many unrelated configuration changes at once and select the apparent fix afterward.

Explanation

Correct Answer

B:

Before rollout, confirm the problem with: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

Incorrect Answers

A:

This statement concerns DNS client-specific failure, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

C:

This statement concerns Malware persistence and containment, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

D:

This is the unsafe shortcut in the Structured troubleshooting hypothesis and controlled change scenario, not a justified remediation or diagnostic. Incident: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed.

Question 577

While reviewing the CompTIA Server+ administration incident, a technician learns: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Power redundancy requires end-to-end capacity and isolation, not merely green status indicators on redundant modules.
  2. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.
  3. Malware response must address propagation and initial access; rebooting one host does not remove the attacker's foothold.
  4. Name resolution failures should be isolated from transport connectivity by comparing direct IP and DNS queries.

Explanation

Correct Answer

B:

Applying it leads to this operational action: Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence.

Incorrect Answers

A:

This statement concerns PSU and power event isolation, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

C:

This statement concerns Malware persistence and containment, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair.

D:

This statement concerns DNS client-specific failure, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair.

Question 578

Before a server change is approved, the on-call engineer receives this incident report: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed. 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. Review PSU fault logs, UPS/PDU event history, load measurements and path diagrams.
  3. Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.
  4. Make many unrelated configuration changes at once and select the apparent fix afterward.

Explanation

Correct Answer

C:

These observations investigate the exact Structured troubleshooting hypothesis and controlled change failure rather than unrelated components. Incident: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed.

Incorrect Answers

A:

For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

B:

For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. This statement concerns PSU and power event isolation, a different Server+ technical control.

D:

Instead, the supported correction is: Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

Question 579

After the team implements a targeted remediation for Structured troubleshooting hypothesis and controlled change, the original incident was: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. Service is restored within response targets, temporary risk is removed and a reproducible fix is documented.
  2. The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.
  3. Clients obtain unique approved addresses and correct gateways without duplicate-IP warnings.
  4. Affected clients resolve the correct application endpoint and connect consistently.

Explanation

Correct Answer

B:

A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. Incident: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed.

Incorrect Answers

A:

This statement concerns Escalation, rollback and post-incident closure, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

C:

This statement concerns DHCP and IP address conflict isolation, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. A targeted investigation checks: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. The desired recovery condition is: The observed fault is reproduced, a single corrective change resolves it and the rollback and final state are documented.

D:

This statement concerns DNS client-specific failure, a different Server+ technical control. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair. For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

Question 580

A change board is planning a verified response to this server event: A storage incident begins after patching, but engineers replace disks first without isolating whether firmware or filesystem changed. For the Structured troubleshooting hypothesis and controlled change issue, which response elements belong in the approved plan? Select TWO answers.

  1. Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.
  2. Make many unrelated configuration changes at once and select the apparent fix afterward.
  3. Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence.
  4. Service is restored within response targets, temporary risk is removed and a reproducible fix is documented.
  5. Trace and test PSU, cables, PDU, UPS and breaker paths under a safely controlled maintenance procedure.

Explanation

Correct Answer

A:

These observations investigate the exact Structured troubleshooting hypothesis and controlled change failure rather than unrelated components. The expected technical relationship is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

C:

Before rollout, confirm the problem with: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.

Incorrect Answers

B:

Instead, the supported correction is: Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence. Discriminate using: Capture baseline symptoms, timeline, recent changes, comparison hosts and test results before modifying production.

D:

For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. This statement concerns Escalation, rollback and post-incident closure, a different Server+ technical control.

E:

For this incident, the relevant principle is: A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures. It does not directly address the reported Structured troubleshooting hypothesis and controlled change fault or prove its repair.

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