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CompTIA SK0-005 Practice Test 70

Question 690

A change board is planning a verified response to this server event: A maintenance job changes UEFI boot order and the host attempts network boot instead of its installed OS disk. For the Boot loader and failed update recovery issue, which response elements belong in the approved plan? Select TWO answers.

  1. Trace conflicting ARP/DHCP responses, eliminate overlapping assignments or rogue offers and correct lease options.
  2. Inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries.
  3. Reformat the system volume immediately when a boot entry or driver error appears.
  4. Restore the supported boot entry or known-good kernel and rebuild boot images as needed using tested recovery media.
  5. The fault disappears under an approved version with no unrelated security controls disabled.

Explanation

Correct Answer

B:

These observations investigate the exact Boot loader and failed update recovery failure rather than unrelated components. The expected technical relationship is: Boot failures may arise before services start; distinguish firmware/bootloader problems from application outages.

D:

Before rollout, confirm the problem with: Inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries. This is the appropriate targeted correction for Boot loader and failed update recovery.

Incorrect Answers

A:

For this incident, the relevant principle is: Boot failures may arise before services start; distinguish firmware/bootloader problems from application outages. The desired recovery condition is: The host boots the approved OS reliably through several cold boots with disk access intact.

C:

Instead, the supported correction is: Restore the supported boot entry or known-good kernel and rebuild boot images as needed using tested recovery media. Boot failures may arise before services start; distinguish firmware/bootloader problems from application outages.

E:

A targeted investigation checks: Inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries.

Question 691

A server administrator is investigating a server issue involving application crash and dependency triage: A service starts but exits when its database connection pool exhausts available connections during the daily batch run. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Trace application errors, dependencies, configuration and resource metrics; restore a supported version or correct the actual limit.
  2. Use host and guest metrics to identify hypervisor resource contention, then right-size or rebalance allocations.
  3. Replace the physical server solely because an application endpoint returns HTTP 500.
  4. Compare changed package and driver versions, confirm a supported regression and execute an approved rollback or fixed update.

Explanation

Correct Answer

A:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Incorrect Answers

B:

That option would use host and guest metrics to identify hypervisor resource contention, then right-size or rebalance allocations, but it addresses a different concern. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

C:

This is the unsafe shortcut in the Application crash and dependency triage scenario, not a justified remediation or diagnostic. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

D:

That option would compare changed package and driver versions, confirm a supported regression and execute an approved rollback or fixed update, but it addresses a different concern. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Question 692

While reviewing the CompTIA Server+ administration incident, a technician learns: A service starts but exits when its database connection pool exhausts available connections during the daily batch run. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Tagged VLAN traffic must be permitted end-to-end; routing changes do not repair a missing layer-two VLAN path.
  2. Filesystem write failures can arise from inode or quota limits as well as free-block exhaustion.
  3. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.
  4. Boot failures may arise before services start; distinguish firmware/bootloader problems from application outages.

Explanation

Correct Answer

C:

The acceptance test is: The application passes functional load tests without repeating its prior exceptions. Scenario: A service starts but exits when its database connection pool exhausts available connections during the daily batch run.

Incorrect Answers

A:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

B:

This statement concerns Filesystem full, inode exhaustion and quotas, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

D:

This statement concerns Boot loader and failed update recovery, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

Question 693

Before a server change is approved, the on-call engineer receives this incident report: A service starts but exits when its database connection pool exhausts available connections during the daily batch run. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Replace the physical server solely because an application endpoint returns HTTP 500.
  2. Inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries.
  3. Inspect change records, kernel and driver logs, known advisories and control-host comparison tests.
  4. Correlate stack traces, error codes, database connection metrics, package versions and deployment history.

Explanation

Correct Answer

D:

These observations investigate the exact Application crash and dependency triage failure rather than unrelated components. Incident: A service starts but exits when its database connection pool exhausts available connections during the daily batch run.

Incorrect Answers

A:

This is the unsafe shortcut in the Application crash and dependency triage scenario, not a justified remediation or diagnostic. Incident: A service starts but exits when its database connection pool exhausts available connections during the daily batch run.

B:

For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history.

C:

For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Question 694

After the team implements a targeted remediation for Application crash and dependency triage, the original incident was: A service starts but exits when its database connection pool exhausts available connections during the daily batch run. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. Application latency normalizes when host contention is reduced without hiding alerts.
  2. Only intended VLANs traverse the trunk and test VMs reach their approved peers.
  3. Unapproved outbound flows stop, legitimate data transfers remain and incident findings are documented.
  4. The application passes functional load tests without repeating its prior exceptions.

Explanation

Correct Answer

D:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Incorrect Answers

A:

This statement concerns Hypervisor contention causing guest latency, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

B:

This statement concerns Incorrect switch VLAN trunk allowance, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair.

C:

This statement concerns Unauthorized outbound traffic and exfiltration detection, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

Question 695

A change board is planning a verified response to this server event: A service starts but exits when its database connection pool exhausts available connections during the daily batch run. For the Application crash and dependency triage issue, which response elements belong in the approved plan? Select ONE best answer.

  1. Collect handshake diagnostics, SAN/issuer fields, trust store configuration and date/time status.
  2. Replace the physical server solely because an application endpoint returns HTTP 500.
  3. Trace application errors, dependencies, configuration and resource metrics; restore a supported version or correct the actual limit. Then validate the change by confirming: The application passes functional load tests without repeating its prior exceptions.
  4. Restore the supported boot entry or known-good kernel and rebuild boot images as needed using tested recovery media.

Explanation

Correct Answer

C:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. This avoids the unsafe shortcut: Replace the physical server solely because an application endpoint returns HTTP 500.

Incorrect Answers

A:

This statement concerns Expired certificate and trust failure triage, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

B:

This is the unsafe shortcut in the Application crash and dependency triage scenario, not a justified remediation or diagnostic. Discriminate using: Correlate stack traces, error codes, database connection metrics, package versions and deployment history.

D:

This statement concerns Boot loader and failed update recovery, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair.

Question 696

A server administrator is investigating a server issue involving application crash and dependency triage: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Replace the physical server solely because an application endpoint returns HTTP 500.
  2. Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence.
  3. Trace application errors, dependencies, configuration and resource metrics; restore a supported version or correct the actual limit.
  4. Restrict management exposure, enforce MFA and rate limiting and investigate authentication events and compromised credentials.

Explanation

Correct Answer

C:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Incorrect Answers

A:

This is the unsafe shortcut in the Application crash and dependency triage scenario, not a justified remediation or diagnostic. Incident: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing.

B:

That option would record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence, but it addresses a different concern. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history.

D:

This statement concerns Brute-force authentication and account lockout, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

Question 697

While reviewing the CompTIA Server+ administration incident, a technician learns: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Repeated authentication failures across accounts require identity threat response and management-plane restriction, not weakened lockout controls.
  2. TLS trust failures are security-relevant authentication errors and require targeted trust repair, not blanket verification bypass.
  3. A repeatable incident method isolates causes and prevents uncontrolled fixes from introducing new failures.
  4. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Explanation

Correct Answer

D:

The acceptance test is: The application passes functional load tests without repeating its prior exceptions. Scenario: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing.

Incorrect Answers

A:

This statement concerns Brute-force authentication and account lockout, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair.

B:

This statement concerns Expired certificate and trust failure triage, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

C:

This statement concerns Structured troubleshooting hypothesis and controlled change, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

Question 698

Before a server change is approved, the on-call engineer receives this incident report: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Correlate stack traces, error codes, database connection metrics, package versions and deployment history.
  2. Compare CPU ready, host memory reclaim, NUMA locality, datastore latency and workload peaks.
  3. Replace the physical server solely because an application endpoint returns HTTP 500.
  4. Collect handshake diagnostics, SAN/issuer fields, trust store configuration and date/time status.

Explanation

Correct Answer

A:

These observations investigate the exact Application crash and dependency triage failure rather than unrelated components. Incident: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing.

Incorrect Answers

B:

For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

C:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

D:

For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. This statement concerns Expired certificate and trust failure triage, a different Server+ technical control.

Question 699

After the team implements a targeted remediation for Application crash and dependency triage, the original incident was: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. The fault disappears under an approved version with no unrelated security controls disabled.
  2. The application passes functional load tests without repeating its prior exceptions.
  3. Affected systems are contained, persistent mechanisms removed and monitored restoration shows no renewed indicators.
  4. Malicious login attempts are contained without losing authorized administrative access.

Explanation

Correct Answer

B:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Incorrect Answers

A:

This statement concerns OS patch regression and rollback, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

C:

This statement concerns Malware persistence and containment, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A targeted investigation checks: Correlate stack traces, error codes, database connection metrics, package versions and deployment history. The desired recovery condition is: The application passes functional load tests without repeating its prior exceptions.

D:

This statement concerns Brute-force authentication and account lockout, a different Server+ technical control. It does not directly address the reported Application crash and dependency triage fault or prove its repair. For this incident, the relevant principle is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

Question 700

A change board is planning a verified response to this server event: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing. For the Application crash and dependency triage issue, which response elements belong in the approved plan? Select THREE answers.

  1. The application passes functional load tests without repeating its prior exceptions.
  2. Inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries.
  3. Replace the physical server solely because an application endpoint returns HTTP 500.
  4. Record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence.
  5. Correlate stack traces, error codes, database connection metrics, package versions and deployment history.
  6. Trace application errors, dependencies, configuration and resource metrics; restore a supported version or correct the actual limit.

Explanation

Correct Answer

A:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. This evidence tests whether the original Application crash and dependency triage weakness has been corrected under realistic conditions.

E:

These observations investigate the exact Application crash and dependency triage failure rather than unrelated components. The expected technical relationship is: Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

F:

Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement. A successful outcome is: The application passes functional load tests without repeating its prior exceptions.

Incorrect Answers

B:

That option would inspect console boot errors, UEFI order, boot partition, initramfs modules and prior working entries, but it addresses a different concern. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

C:

Incident: An application repeatedly returns HTTP 500 after a library upgrade because a runtime dependency is missing.

D:

That option would record symptoms and recent changes, form a testable hypothesis, change one variable at a time and preserve rollback evidence, but it addresses a different concern. Application-level failures can occur with healthy CPU, network and OS; examine logs and service dependencies before hardware replacement.

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