CompTIA SK0-005 Practice Test 31
Question 300
A change board is planning a verified response to this server event: A team treats a hypervisor snapshot as the only recovery copy before a risky operating-system upgrade. For the VM snapshot use and backup boundaries issue, which response elements belong in the approved plan? Select THREE answers.
- Use application-aware health checks, appropriate rise/fall thresholds and connection draining for deployments.
- Review EVC/CPU compatibility, datastore visibility, network mapping and free host capacity.
- Keep snapshots forever and classify them as offsite disaster-recovery backups.
- Expired snapshots are consolidated safely and a separate tested backup can restore the VM.
- Use snapshots only as short-lived change rollback points and maintain independently recoverable, application-consistent backups.
- Inspect snapshot tree age/size, delta growth, datastore free space and backup restore-point availability.
Explanation
Correct Answer
D:Snapshots depend on the underlying datastore and often have performance/space costs; they are not independent backups. This evidence tests whether the original VM snapshot use and backup boundaries weakness has been corrected under realistic conditions.
E:Snapshots depend on the underlying datastore and often have performance/space costs; they are not independent backups. This is the appropriate targeted correction for VM snapshot use and backup boundaries.
F:These observations investigate the exact VM snapshot use and backup boundaries failure rather than unrelated components. Use findings to decide whether to: Use snapshots only as short-lived change rollback points and maintain independently recoverable, application-consistent backups.
Incorrect Answers
A:That option would use application-aware health checks, appropriate rise/fall thresholds and connection draining for deployments, but it addresses a different concern. Snapshots depend on the underlying datastore and often have performance/space costs; they are not independent backups.
B:That option would review EVC/CPU compatibility, datastore visibility, network mapping and free host capacity, but it addresses a different concern. Snapshots depend on the underlying datastore and often have performance/space costs; they are not independent backups.
C:Incident: A team treats a hypervisor snapshot as the only recovery copy before a risky operating-system upgrade.
Question 301
A server administrator is investigating a server issue involving virtual switch isolation and port group assignment: A VM that handles payment traffic is connected to an unrestricted test port group with access to management interfaces. The change must address the documented fault without creating unrelated risk. Which corrective action is most appropriate? Select ONE best answer.
- Verify migration CPU compatibility, shared/storage accessibility and destination resource headroom before moving VMs.
- Connect the VM to a general untagged bridge to avoid reconciling port-group configurations.
- Right-size vCPU and RAM allocations using contention telemetry and supportable reservations or resource controls.
- Align virtual switch and distributed port-group VLAN, uplink and security settings across hosts; preserve network isolation.
Explanation
Correct Answer
D:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A successful outcome is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
Incorrect Answers
A:That option would verify migration CPU compatibility, shared/storage accessibility and destination resource headroom before moving VMs, but it addresses a different concern. Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
B:This is the unsafe shortcut in the Virtual switch isolation and port group assignment scenario, not a justified remediation or diagnostic. Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
C:This statement concerns Hypervisor resource overcommit and reservations, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
Question 302
While reviewing the CompTIA Server+ administration incident, a technician learns: A VM that handles payment traffic is connected to an unrestricted test port group with access to management interfaces. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Snapshots depend on the underlying datastore and often have performance/space costs; they are not independent backups.
- Software rights depend on the actual product agreement and deployment topology; a paid license on one host is not always transferable.
- Containers share a host kernel and depend on namespace, capability, filesystem and image security; they are not full hardware virtualization.
- Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
Explanation
Correct Answer
D:The acceptance test is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability. This is the controlling principle for the reported Virtual switch isolation and port group assignment incident.
Incorrect Answers
A:This statement concerns VM snapshot use and backup boundaries, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
B:This statement concerns Per-core and virtual machine licensing, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
C:This statement concerns Containers and host isolation, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
Question 303
Before a server change is approved, the on-call engineer receives this incident report: A VM that handles payment traffic is connected to an unrestricted test port group with access to management interfaces. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
- Inspect host CPU utilization and ready time, balloon/swap counters, NUMA placement and VM performance curves.
- Connect the VM to a general untagged bridge to avoid reconciling port-group configurations.
- Inspect container runtime flags, privileged status, mounted paths, image digest and host patch level.
Explanation
Correct Answer
A:These observations investigate the exact Virtual switch isolation and port group assignment failure rather than unrelated components. The expected technical relationship is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
Incorrect Answers
B:For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
C:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This is the unsafe shortcut in the Virtual switch isolation and port group assignment scenario, not a justified remediation or diagnostic.
D:For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This statement concerns Containers and host isolation, a different Server+ technical control.
Question 304
After the team implements a targeted remediation for Virtual switch isolation and port group assignment, the original incident was: A VM that handles payment traffic is connected to an unrestricted test port group with access to management interfaces. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- Running the automation twice produces the same intended end state without duplicate objects.
- The VM migrates without guest interruption and maintains its workload performance after placement.
- Expired snapshots are consolidated safely and a separate tested backup can restore the VM.
- The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
Explanation
Correct Answer
D:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
Incorrect Answers
A:This statement concerns Idempotent configuration automation, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
B:This statement concerns Live migration compatibility and resource headroom, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
C:This statement concerns VM snapshot use and backup boundaries, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair.
Question 305
A change board is planning a verified response to this server event: A VM that handles payment traffic is connected to an unrestricted test port group with access to management interfaces. For the Virtual switch isolation and port group assignment issue, which response elements belong in the approved plan? Select ONE best answer.
- Inspect switch port VLAN/trunk state, ARP tables, interface settings, routing table and path traces.
- Connect the VM to a general untagged bridge to avoid reconciling port-group configurations.
- Align virtual switch and distributed port-group VLAN, uplink and security settings across hosts; preserve network isolation. Then validate the change by confirming: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
- Run containers with least privileges, limited mounts and capabilities, verified images and supported host hardening.
Explanation
Correct Answer
C:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. The proposed change and outcome assessment work together for Virtual switch isolation and port group assignment.
Incorrect Answers
A:That option would inspect switch port VLAN/trunk state, ARP tables, interface settings, routing table and path traces, but it addresses a different concern. Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
B:This is the unsafe shortcut in the Virtual switch isolation and port group assignment scenario, not a justified remediation or diagnostic. Discriminate using: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
D:That option would run containers with least privileges, limited mounts and capabilities, verified images and supported host hardening, but it addresses a different concern. Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
Question 306
A server administrator is investigating a server issue involving virtual switch isolation and port group assignment: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source. 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.
- Configure nonoverlapping DHCP scopes, appropriate relay or helper settings and correct lease, gateway and DNS options.
- Connect the VM to a general untagged bridge to avoid reconciling port-group configurations.
- Align virtual switch and distributed port-group VLAN, uplink and security settings across hosts; preserve network isolation.
Explanation
Correct Answer
D:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
Incorrect Answers
A:That option would configure an appropriate witness and quorum voting model with fencing or leader election to avoid simultaneous primaries, but it addresses a different concern. Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
B:That option would configure nonoverlapping DHCP scopes, appropriate relay or helper settings and correct lease, gateway and DNS options, but it addresses a different concern. Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
C:This is the unsafe shortcut in the Virtual switch isolation and port group assignment scenario, not a justified remediation or diagnostic. Incident: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source.
Question 307
While reviewing the CompTIA Server+ administration incident, a technician learns: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source. Which principle most directly explains how to address the described issue safely? Select ONE best answer.
- Availability must preserve data consistency during partitions; an extra node is not sufficient without quorum and fencing.
- Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
- Capacity planning must identify the bottleneck resource and trend, not confuse free capacity with sufficient throughput.
- DHCP broadcasts normally need a relay across routed subnets, and leases must match the client network and scope policy.
Explanation
Correct Answer
B:The acceptance test is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
Incorrect Answers
A:This statement concerns Cluster quorum and split-brain prevention, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
C:This statement concerns Server resource monitoring and capacity planning, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
D:This statement concerns DHCP scope and relay design, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
Question 308
Before a server change is approved, the on-call engineer receives this incident report: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source. Which evidence would most directly establish the stated root-cause hypothesis? Select ONE best answer.
- Collect resource counters, queue depth, latency percentile, working-set and workload time series.
- Inspect host CPU utilization and ready time, balloon/swap counters, NUMA placement and VM performance curves.
- Connect the VM to a general untagged bridge to avoid reconciling port-group configurations.
- Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
Explanation
Correct Answer
D:These observations investigate the exact Virtual switch isolation and port group assignment failure rather than unrelated components. Incident: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source.
Incorrect Answers
A:For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
B:For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This statement concerns Hypervisor resource overcommit and reservations, a different Server+ technical control.
C:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
Question 309
After the team implements a targeted remediation for Virtual switch isolation and port group assignment, the original incident was: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source. Which acceptance criterion would best demonstrate a durable and safe resolution? Select ONE best answer.
- The workload performs its required task without unnecessary host capabilities or filesystem access.
- The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
- The VM migrates without guest interruption and maintains its workload performance after placement.
- Clients on each VLAN consistently obtain valid leases with correct options and no address conflicts.
Explanation
Correct Answer
B:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This evidence tests whether the original Virtual switch isolation and port group assignment weakness has been corrected under realistic conditions.
Incorrect Answers
A:This statement concerns Containers and host isolation, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
C:This statement concerns Live migration compatibility and resource headroom, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair. For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. A targeted investigation checks: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies. The desired recovery condition is: The VM retains approved network connectivity through migration without gaining unauthorized subnet reachability.
D:This statement concerns DHCP scope and relay design, a different Server+ technical control. It does not directly address the reported Virtual switch isolation and port group assignment fault or prove its repair.
Question 310
A change board is planning a verified response to this server event: After live migration, a workload loses connectivity because the destination host's port group VLAN differs from the source. For the Virtual switch isolation and port group assignment issue, which response elements belong in the approved plan? Select TWO answers.
- Baseline CPU, memory, IOPS, network and latency against workload SLOs; adjust constrained capacity using measured evidence.
- Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
- The VM migrates without guest interruption and maintains its workload performance after placement.
- Connect the VM to a general untagged bridge to avoid reconciling port-group configurations.
- Align virtual switch and distributed port-group VLAN, uplink and security settings across hosts; preserve network isolation.
Explanation
Correct Answer
B:The expected technical relationship is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation.
E:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This is the appropriate targeted correction for Virtual switch isolation and port group assignment.
Incorrect Answers
A:For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This statement concerns Server resource monitoring and capacity planning, a different Server+ technical control.
C:For this incident, the relevant principle is: Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. This statement concerns Live migration compatibility and resource headroom, a different Server+ technical control.
D:Virtual network topology must be consistent across hosts, and hypervisor port groups enforce connectivity and isolation. Discriminate using: Compare source/destination port-group IDs, uplink teaming, VLAN tags and effective firewall policies.
