CompTIA SK0-005 Practice Test 26
Question 250
A change board is planning a verified response to this server event: A virtualized file server shows long disk queues despite low capacity utilization, and the team considers adding storage space only. For the Server resource monitoring and capacity planning issue, which response elements belong in the approved plan? Select TWO answers.
- Add more disk gigabytes whenever any performance metric worsens.
- Baseline CPU, memory, IOPS, network and latency against workload SLOs; adjust constrained capacity using measured evidence.
- Collect resource counters, queue depth, latency percentile, working-set and workload time series.
- Use snapshots only as short-lived change rollback points and maintain independently recoverable, application-consistent backups.
- Authorized readers can read but cannot modify, and only approved writer groups can change files.
Explanation
Correct Answer
B:Capacity planning must identify the bottleneck resource and trend, not confuse free capacity with sufficient throughput. This is the appropriate targeted correction for Server resource monitoring and capacity planning.
C:These observations investigate the exact Server resource monitoring and capacity planning failure rather than unrelated components. The expected technical relationship is: Capacity planning must identify the bottleneck resource and trend, not confuse free capacity with sufficient throughput.
Incorrect Answers
A:This is the unsafe shortcut in the Server resource monitoring and capacity planning scenario, not a justified remediation or diagnostic. Discriminate using: Collect resource counters, queue depth, latency percentile, working-set and workload time series.
D:That option would use snapshots only as short-lived change rollback points and maintain independently recoverable, application-consistent backups, but it addresses a different concern. Capacity planning must identify the bottleneck resource and trend, not confuse free capacity with sufficient throughput.
E:This statement concerns File share authorization and inheritance, a different Server+ technical control. It does not directly address the reported Server resource monitoring and capacity planning fault or prove its repair.
Question 251
A server administrator is investigating a server issue involving cluster quorum and split-brain prevention: A two-node cluster loses witness connectivity and both isolated nodes attempt to promote themselves as active database primary. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Configure an appropriate witness and quorum voting model with fencing or leader election to avoid simultaneous primaries.
- Force both partitioned nodes active to maximize the apparent number of running servers.
- Use application-aware health checks, appropriate rise/fall thresholds and connection draining for deployments.
- Define supported sync/async replication and failover mechanisms consistent with RPO/RTO; test role promotion and endpoint switching.
Explanation
Correct Answer
A:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A successful outcome is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Incorrect Answers
B:This is the unsafe shortcut in the Cluster quorum and split-brain prevention scenario, not a justified remediation or diagnostic. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
C:That option would use application-aware health checks, appropriate rise/fall thresholds and connection draining for deployments, but it addresses a different concern. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
D:That option would define supported sync/async replication and failover mechanisms consistent with RPO/RTO; test role promotion and endpoint switching, but it addresses a different concern. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Question 252
While reviewing the CompTIA Server+ administration incident, a technician learns: A two-node cluster loses witness connectivity and both isolated nodes attempt to promote themselves as active database primary. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Open-source use still carries license conditions, and support subscriptions are separate from copyright permissions.
- Allocated virtual resources are not guaranteed physically available under contention; vCPU ready and memory reclaim can harm latency.
- Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
- UEFI, GPT and the installed bootloader must match a supported boot path; changing boot mode after installation can prevent startup.
Explanation
Correct Answer
C:The acceptance test is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state. This is the controlling principle for the reported Cluster quorum and split-brain prevention incident.
Incorrect Answers
A:This statement concerns Open-source license obligations and audit, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
B:This statement concerns Hypervisor resource overcommit and reservations, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
D:This statement concerns UEFI boot and GPT provisioning, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Question 253
Before a server change is approved, the on-call engineer receives this incident report: A two-node cluster loses witness connectivity and both isolated nodes attempt to promote themselves as active database primary. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior.
- Inspect boot mode, partition-table format, Secure Boot state, boot entries and installation media support.
- Measure apply lag, replication errors, client reconnection behavior and failover event timestamps.
- Force both partitioned nodes active to maximize the apparent number of running servers.
Explanation
Correct Answer
A:These observations investigate the exact Cluster quorum and split-brain prevention failure rather than unrelated components. The expected technical relationship is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Incorrect Answers
B:For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior.
C:For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. This statement concerns Database replication and failover objective, a different Server+ technical control.
D:This is the unsafe shortcut in the Cluster quorum and split-brain prevention scenario, not a justified remediation or diagnostic. Discriminate using: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior.
Question 254
After the team implements a targeted remediation for Cluster quorum and split-brain prevention, the original incident was: A two-node cluster loses witness connectivity and both isolated nodes attempt to promote themselves as active database primary. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
- Expired snapshots are consolidated safely and a separate tested backup can restore the VM.
- Unready nodes receive no new requests, ready nodes join predictably and existing requests drain successfully.
- Deployments have traceable licenses and required notices or source obligations are fulfilled.
Explanation
Correct Answer
A:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Incorrect Answers
B:This statement concerns VM snapshot use and backup boundaries, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
C:This statement concerns Load balancer health checking, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
D:This statement concerns Open-source license obligations and audit, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair.
Question 255
A change board is planning a verified response to this server event: A two-node cluster loses witness connectivity and both isolated nodes attempt to promote themselves as active database primary. For the Cluster quorum and split-brain prevention issue, which response elements belong in the approved plan? Select ONE best answer.
- Force both partitioned nodes active to maximize the apparent number of running servers.
- Align firmware boot mode, supported GPT partitioning and Secure Boot policy with the OS image before installation.
- Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
- Configure an appropriate witness and quorum voting model with fencing or leader election to avoid simultaneous primaries. Then validate the change by confirming: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Explanation
Correct Answer
D:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. The proposed change and outcome assessment work together for Cluster quorum and split-brain prevention.
Incorrect Answers
A:This is the unsafe shortcut in the Cluster quorum and split-brain prevention scenario, not a justified remediation or diagnostic. Incident: A two-node cluster loses witness connectivity and both isolated nodes attempt to promote themselves as active database primary.
B:That option would align firmware boot mode, supported GPT partitioning and Secure Boot policy with the OS image before installation, but it addresses a different concern. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
C:That option would compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies, but it addresses a different concern. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Question 256
A server administrator is investigating a server issue involving cluster quorum and split-brain prevention: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Configure an appropriate witness and quorum voting model with fencing or leader election to avoid simultaneous primaries.
- Baseline CPU, memory, IOPS, network and latency against workload SLOs; adjust constrained capacity using measured evidence.
- Separate high-growth data and logs from critical system space using supported mount points, volume sizing and monitoring.
- Force both partitioned nodes active to maximize the apparent number of running servers.
Explanation
Correct Answer
A:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Incorrect Answers
B:This statement concerns Server resource monitoring and capacity planning, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
C:This statement concerns Partition and mount strategy for server roles, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
D:This is the unsafe shortcut in the Cluster quorum and split-brain prevention scenario, not a justified remediation or diagnostic. Incident: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes.
Question 257
While reviewing the CompTIA Server+ administration incident, a technician learns: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Capacity planning must identify the bottleneck resource and trend, not confuse free capacity with sufficient throughput.
- Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
- DNS answers depend on resolver selection, authoritative records and caching; a ping of one host does not validate all name-resolution paths.
- File-system layout should reflect workload growth and recovery boundaries rather than only installer defaults.
Explanation
Correct Answer
B:The acceptance test is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Incorrect Answers
A:This statement concerns Server resource monitoring and capacity planning, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair.
C:This statement concerns DNS split-horizon and resolver troubleshooting, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
D:This statement concerns Partition and mount strategy for server roles, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair.
Question 258
Before a server change is approved, the on-call engineer receives this incident report: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Inspect package SBOM, license texts, modification/distribution history and subscription records.
- Query each resolver directly, inspect answer sections and TTLs, compare private/public zones and client resolver lists.
- Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior.
- Force both partitioned nodes active to maximize the apparent number of running servers.
Explanation
Correct Answer
C:These observations investigate the exact Cluster quorum and split-brain prevention failure rather than unrelated components. Incident: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes.
Incorrect Answers
A:For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
B:For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. This statement concerns DNS split-horizon and resolver troubleshooting, a different Server+ technical control.
D:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Question 259
After the team implements a targeted remediation for Cluster quorum and split-brain prevention, the original incident was: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- Target latency and throughput hold under representative peak load with monitored headroom.
- Newly deployed hosts match a supported baseline with documented provenance and no unapproved critical gaps.
- Unready nodes receive no new requests, ready nodes join predictably and existing requests drain successfully.
- During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Explanation
Correct Answer
D:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
Incorrect Answers
A:This statement concerns Server resource monitoring and capacity planning, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
B:This statement concerns Golden image lifecycle and OS support, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
C:This statement concerns Load balancer health checking, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair. For this incident, the relevant principle is: Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. A targeted investigation checks: Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior. The desired recovery condition is: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Question 260
A change board is planning a verified response to this server event: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes. For the Cluster quorum and split-brain prevention issue, which response elements belong in the approved plan? Select TWO answers.
- Set authoritative zone records and split-view policy correctly, then validate resolver paths, TTL and cache expiration.
- Configure an appropriate witness and quorum voting model with fencing or leader election to avoid simultaneous primaries.
- Force both partitioned nodes active to maximize the apparent number of running servers.
- Review cluster vote configuration, witness reachability, fencing logs and simulated partition behavior.
- Unready nodes receive no new requests, ready nodes join predictably and existing requests drain successfully.
Explanation
Correct Answer
B:Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing. This is the appropriate targeted correction for Cluster quorum and split-brain prevention.
D:These observations investigate the exact Cluster quorum and split-brain prevention failure rather than unrelated components. Confirm remediation through: During a planned partition only one side accepts authoritative writes and recovery avoids divergent state.
Incorrect Answers
A:That option would set authoritative zone records and split-view policy correctly, then validate resolver paths, TTL and cache expiration, but it addresses a different concern. Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
C:Incident: A stretched cluster was configured without quorum design for a network partition between sites, creating divergent writes.
E:This statement concerns Load balancer health checking, a different Server+ technical control. It does not directly address the reported Cluster quorum and split-brain prevention fault or prove its repair.
