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CompTIA SK0-005 Practice Test 21

Question 200

A change board is planning a verified response to this server event: Users in a branch intermittently receive addresses from the wrong pool because overlapping DHCP scopes include the same subnet and options. For the DHCP scope and relay design issue, which response elements belong in the approved plan? Select THREE answers.

  1. Expand a random scope and assume DHCP broadcasts traverse routers without a relay.
  2. Configure nonoverlapping DHCP scopes, appropriate relay or helper settings and correct lease, gateway and DNS options.
  3. Query each resolver directly, inspect answer sections and TTLs, compare private/public zones and client resolver lists.
  4. Inspect DHCP discover/offer captures, relay configuration, scope utilization and leased default gateways.
  5. Clients on each VLAN consistently obtain valid leases with correct options and no address conflicts.
  6. Right-size vCPU and RAM allocations using contention telemetry and supportable reservations or resource controls.

Explanation

Correct Answer

B:

DHCP broadcasts normally need a relay across routed subnets, and leases must match the client network and scope policy. This is the appropriate targeted correction for DHCP scope and relay design.

D:

These observations investigate the exact DHCP scope and relay design failure rather than unrelated components. The expected technical relationship is: DHCP broadcasts normally need a relay across routed subnets, and leases must match the client network and scope policy.

E:

DHCP broadcasts normally need a relay across routed subnets, and leases must match the client network and scope policy. This evidence tests whether the original DHCP scope and relay design weakness has been corrected under realistic conditions.

Incorrect Answers

A:

Incident: Users in a branch intermittently receive addresses from the wrong pool because overlapping DHCP scopes include the same subnet and options.

C:

This statement concerns DNS split-horizon and resolver troubleshooting, a different Server+ technical control. It does not directly address the reported DHCP scope and relay design fault or prove its repair. For this incident, the relevant principle is: DHCP broadcasts normally need a relay across routed subnets, and leases must match the client network and scope policy. A targeted investigation checks: Inspect DHCP discover/offer captures, relay configuration, scope utilization and leased default gateways. The desired recovery condition is: Clients on each VLAN consistently obtain valid leases with correct options and no address conflicts.

F:

This statement concerns Hypervisor resource overcommit and reservations, a different Server+ technical control. It does not directly address the reported DHCP scope and relay design fault or prove its repair. For this incident, the relevant principle is: DHCP broadcasts normally need a relay across routed subnets, and leases must match the client network and scope policy.

Question 201

A server administrator is investigating a server issue involving ntp time sources and clock skew: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Disable clock-skew checks instead of correcting time-source configuration.
  2. Set authoritative zone records and split-view policy correctly, then validate resolver paths, TTL and cache expiration.
  3. Configure nonoverlapping DHCP scopes, appropriate relay or helper settings and correct lease, gateway and DNS options.
  4. Configure redundant trusted time sources and verify host, hypervisor and directory time hierarchy with monitored offset.

Explanation

Correct Answer

D:

Before rollout, confirm the problem with: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

Incorrect Answers

A:

This is the unsafe shortcut in the NTP time sources and clock skew scenario, not a justified remediation or diagnostic. Incident: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy.

B:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

C:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.

Question 202

While reviewing the CompTIA Server+ administration incident, a technician learns: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.
  2. Reliable administration scripts should be safe to rerun after partial execution rather than multiply state changes.
  3. Effective file access results from intersecting share/export rules, filesystem permissions and identity context.
  4. Layer-two VLAN membership and layer-three routing are distinct requirements; correct IP syntax alone does not guarantee reachability.

Explanation

Correct Answer

A:

This is the controlling principle for the reported NTP time sources and clock skew incident. Scenario: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy.

Incorrect Answers

B:

This statement concerns Idempotent configuration automation, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

C:

This statement concerns File share authorization and inheritance, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

D:

This statement concerns VLAN segmentation and default gateway, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

Question 203

Before a server change is approved, the on-call engineer receives this incident report: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Query each resolver directly, inspect answer sections and TTLs, compare private/public zones and client resolver lists.
  2. Inspect switch port VLAN/trunk state, ARP tables, interface settings, routing table and path traces.
  3. Disable clock-skew checks instead of correcting time-source configuration.
  4. Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

Explanation

Correct Answer

D:

These observations investigate the exact NTP time sources and clock skew failure rather than unrelated components. Incident: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy.

Incorrect Answers

A:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. This statement concerns DNS split-horizon and resolver troubleshooting, a different Server+ technical control.

B:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. This statement concerns VLAN segmentation and default gateway, a different Server+ technical control.

C:

Instead, the supported correction is: Configure redundant trusted time sources and verify host, hypervisor and directory time hierarchy with monitored offset. This is the unsafe shortcut in the NTP time sources and clock skew scenario, not a justified remediation or diagnostic.

Question 204

After the team implements a targeted remediation for NTP time sources and clock skew, the original incident was: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. Installed instances and host resources are covered by documented valid entitlements after migration.
  2. Clients on each VLAN consistently obtain valid leases with correct options and no address conflicts.
  3. Authorized readers can read but cannot modify, and only approved writer groups can change files.
  4. Offset falls within the authentication policy threshold and timestamps align across systems.

Explanation

Correct Answer

D:

Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.

Incorrect Answers

A:

This statement concerns Per-core and virtual machine licensing, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

B:

This statement concerns DHCP scope and relay design, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

C:

This statement concerns File share authorization and inheritance, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair.

Question 205

A change board is planning a verified response to this server event: A group of servers cannot validate Kerberos tickets because their clocks differ by several minutes from the domain time hierarchy. For the NTP time sources and clock skew issue, which response elements belong in the approved plan? Select ONE best answer.

  1. Inspect container runtime flags, privileged status, mounted paths, image digest and host patch level.
  2. Configure redundant trusted time sources and verify host, hypervisor and directory time hierarchy with monitored offset. Then validate the change by confirming: Offset falls within the authentication policy threshold and timestamps align across systems.
  3. Assign supported switch VLAN modes and correct interface subnet, mask, gateway and routes; verify permitted inter-VLAN flows.
  4. Disable clock-skew checks instead of correcting time-source configuration.

Explanation

Correct Answer

B:

Before modifying systems, gather: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

Incorrect Answers

A:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. This statement concerns Containers and host isolation, a different Server+ technical control.

C:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. It does not directly address the reported NTP time sources and clock skew fault or prove its repair.

D:

This is the unsafe shortcut in the NTP time sources and clock skew scenario, not a justified remediation or diagnostic. Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.

Question 206

A server administrator is investigating a server issue involving ntp time sources and clock skew: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.

  1. Disable clock-skew checks instead of correcting time-source configuration.
  2. Configure redundant trusted time sources and verify host, hypervisor and directory time hierarchy with monitored offset.
  3. Run containers with least privileges, limited mounts and capabilities, verified images and supported host hardening.
  4. Maintain supported, patched golden images with version pinning, vulnerability scanning and reproducible configuration validation.

Explanation

Correct Answer

B:

Before rollout, confirm the problem with: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

Incorrect Answers

A:

This is the unsafe shortcut in the NTP time sources and clock skew scenario, not a justified remediation or diagnostic. Incident: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized.

C:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.

D:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. This statement concerns Golden image lifecycle and OS support, a different Server+ technical control.

Question 207

While reviewing the CompTIA Server+ administration incident, a technician learns: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized. Which principle most directly explains how to address the described issue safely? Select ONE best answer.

  1. Containers share a host kernel and depend on namespace, capability, filesystem and image security; they are not full hardware virtualization.
  2. Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.
  3. A successful OS install does not establish ongoing supportability or image provenance; images require lifecycle controls.
  4. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.

Explanation

Correct Answer

B:

This is the controlling principle for the reported NTP time sources and clock skew incident. Scenario: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized.

Incorrect Answers

A:

This statement concerns Containers and host isolation, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

C:

This statement concerns Golden image lifecycle and OS support, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

D:

This statement concerns Cluster quorum and split-brain prevention, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

Question 208

Before a server change is approved, the on-call engineer receives this incident report: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.

  1. Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior.
  2. Query each resolver directly, inspect answer sections and TTLs, compare private/public zones and client resolver lists.
  3. Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.
  4. Disable clock-skew checks instead of correcting time-source configuration.

Explanation

Correct Answer

C:

These observations investigate the exact NTP time sources and clock skew failure rather than unrelated components. Incident: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized.

Incorrect Answers

A:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. This statement concerns Cluster quorum and split-brain prevention, a different Server+ technical control.

B:

For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

D:

Instead, the supported correction is: Configure redundant trusted time sources and verify host, hypervisor and directory time hierarchy with monitored offset. Incident: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized.

Question 209

After the team implements a targeted remediation for NTP time sources and clock skew, the original incident was: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.

  1. Peak workload runs within latency targets without excessive CPU ready or host memory reclamation.
  2. Offset falls within the authentication policy threshold and timestamps align across systems.
  3. The server reaches only intended subnets through the correct gateway while segmentation rules remain enforced.
  4. Newly deployed hosts match a supported baseline with documented provenance and no unapproved critical gaps.

Explanation

Correct Answer

B:

Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.

Incorrect Answers

A:

This statement concerns Hypervisor resource overcommit and reservations, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

C:

This statement concerns VLAN segmentation and default gateway, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair. For this incident, the relevant principle is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication. A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. The desired recovery condition is: Offset falls within the authentication policy threshold and timestamps align across systems.

D:

This statement concerns Golden image lifecycle and OS support, a different Server+ technical control. It does not directly address the reported NTP time sources and clock skew fault or prove its repair.

Question 210

A change board is planning a verified response to this server event: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized. For the NTP time sources and clock skew issue, which response elements belong in the approved plan? Select TWO answers.

  1. Configure redundant trusted time sources and verify host, hypervisor and directory time hierarchy with monitored offset.
  2. Configure an appropriate witness and quorum voting model with fencing or leader election to avoid simultaneous primaries.
  3. The server reaches only intended subnets through the correct gateway while segmentation rules remain enforced.
  4. Disable clock-skew checks instead of correcting time-source configuration.
  5. Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

Explanation

Correct Answer

A:

Before rollout, confirm the problem with: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems. This is the appropriate targeted correction for NTP time sources and clock skew.

E:

These observations investigate the exact NTP time sources and clock skew failure rather than unrelated components. The expected technical relationship is: Time synchronization is required for trustworthy logs, certificate validation windows and time-sensitive authentication.

Incorrect Answers

B:

A targeted investigation checks: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

C:

Incident: TLS audit logs appear out of order after a VM host drifts from the approved NTP source while other systems remain synchronized.

D:

This is the unsafe shortcut in the NTP time sources and clock skew scenario, not a justified remediation or diagnostic. Discriminate using: Measure time offset, NTP peer reachability, stratum and event timestamps on affected systems.

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