CompTIA 220-1201 Practice Test 90
Question 890
On a service ticket for Evergreen Manufacturing, the team observes: An organization uses a SaaS platform shared with several customer organizations. The supporting record states that the provider logically isolates tenant data but may share underlying physical compute. The desired outcome is to distinguish logical tenant isolation from guaranteed dedicated physical hardware. A safe non-destructive test must be used before replacing additional parts. What should the technician recommend as the corrective approach?
- Configure supported autoscaling rules with limits for traffic-driven elasticity
- Select dedicated hosting only when explicitly required and otherwise verify tenant isolation controls
- Select a supported Type 1 bare-metal hypervisor for the production host requirement
- Describe the combination as hybrid cloud rather than calling it wholly public or wholly private
Explanation
Correct Answer
B:
Select dedicated hosting only when explicitly required and otherwise verify tenant isolation controls. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that the provider logically isolates tenant data but may share underlying physical compute. The support goal is to distinguish logical tenant isolation from guaranteed dedicated physical hardware; this design action specifically addresses multitenancy versus dedicated cloud resources without confusing a different subsystem.
Incorrect Answers
A:
Configure supported autoscaling rules with limits for traffic-driven elasticity. That action is appropriate for cloud elasticity versus fixed provisioning, normally when an online storefront sees traffic triple for two hours and then fall back to normal. Here the observed facts require multitenancy versus dedicated cloud resources instead.
C:
Select a supported Type 1 bare-metal hypervisor for the production host requirement. This action is appropriate for type 1 versus type 2 hypervisors, normally when an organization needs multiple production VMs on a dedicated virtualization host without a general-purpose desktop OS layer. Here the observed facts require multitenancy versus dedicated cloud resources instead.
D:
Describe the combination as hybrid cloud rather than calling it wholly public or wholly private. That action is appropriate for public versus private versus hybrid cloud, normally when an enterprise must keep one legacy regulatory workload in its own datacenter while scaling an unrelated web front end in a public provider. Here the observed facts require multitenancy versus dedicated cloud resources instead.
Question 891
A support request at Monarch Pharmacy presents this problem: An office PC obtains a 169.254 address and cannot reach internet destinations. The supporting record states that its VLAN's DHCP helper address was removed during a switch configuration update. The desired outcome is to identify absent DHCP replies rather than blaming remote DNS first. Any configuration change must be reversible and validated on a controlled test device. How should the solution first be tested on an approved spare or pilot system?
- Resolve an approved internal hostname from a test client using the corrected DNS server
- Renew a test client's lease after repairing the permitted DHCP relay
- Pilot an alternate AP channel in a safe window while measuring client retry rate
- Use a certified spare patch cable and run a non-destructive cable wiremap test
Explanation
Correct Answer
B:
Renew a test client's lease after repairing the permitted DHCP relay. It tests the proposed solution safely on an approved representative system. The relevant observation is that its VLAN's DHCP helper address was removed during a switch configuration update. The support goal is to identify absent DHCP replies rather than blaming remote DNS first; this pilot action specifically addresses dhcp failure and 169.254 apipa symptom without confusing a different subsystem.
Incorrect Answers
A:
Resolve an approved internal hostname from a test client using the corrected DNS server. That action is appropriate for dns failure with working ip connectivity, normally when a workstation opens a service directly by numeric IP but says its hostname cannot be resolved. Here the observed facts require dhcp failure and 169.254 apipa symptom instead.
C:
Pilot an alternate AP channel in a safe window while measuring client retry rate. This action is appropriate for intermittent wi-fi due to channel interference, normally when users near a lunchroom suffer slow 2.4 GHz Wi-Fi at peak periods while wired links stay normal. Here the observed facts require dhcp failure and 169.254 apipa symptom instead.
D:
Use a certified spare patch cable and run a non-destructive cable wiremap test. That action is appropriate for copper ethernet link flapping, normally when a workstation loses Ethernet connection whenever its patch lead is bent. Here the observed facts require dhcp failure and 169.254 apipa symptom instead.
Question 892
At Riverlight Retail, a technician working in desktop hardware service bench identifies this issue: A desktop upgrade adds a high-power GPU and the PC abruptly powers off during intensive graphics workloads. The supporting record states that the PSU wattage may be insufficient and the board uses a standard 24-pin ATX main connector. The desired outcome is to select an adequately rated power supply with correct board and GPU connectors. The customer requires a verified fix rather than a guess based on one symptom. What should be tracked after the fix to maintain service reliability?
- Monitor individual PSU health and power source independence
- Monitor PSU voltage alarms and future expansion power requirements
- Monitor power and GPU temperature after the upgrade
- Monitor repairs involving mixed PSU cables and connector heat
Explanation
Correct Answer
B:
Monitor PSU voltage alarms and future expansion power requirements. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the PSU wattage may be insufficient and the board uses a standard 24-pin ATX main connector. The support goal is to select an adequately rated power supply with correct board and GPU connectors; this monitor action specifically addresses psu wattage and 20+4 atx connector without confusing a different subsystem.
Incorrect Answers
A:
Monitor individual PSU health and power source independence. That action is appropriate for redundant psu failover, normally when an office server needs to stay online when one power supply module fails. Here the observed facts require psu wattage and 20+4 atx connector instead.
C:
Monitor power and GPU temperature after the upgrade. This action is appropriate for pcie slot and gpu power constraints, normally when a designer's PC has an available physical PCIe x16 slot but an upgraded graphics card fails under load. Here the observed facts require psu wattage and 20+4 atx connector instead.
D:
Monitor repairs involving mixed PSU cables and connector heat. That action is appropriate for modular psu cable safety, normally when a builder replaces a modular PSU but wants to reuse its old detachable power leads. Here the observed facts require psu wattage and 20+4 atx connector instead.
Question 893
During Granite Capital's branch networking support, the technician encounters this condition: An old router is accessible via Telnet but security policy requires encrypted remote CLI administration. The desired outcome is to choose encrypted terminal management over a cleartext terminal protocol. User data and business service continuity must be preserved. Which safe pilot action gives the most relevant evidence?
- Open a test SSH session to a lab switch and inspect the encrypted connection
- Issue a permitted test query that triggers a TCP retry after a truncated UDP response
- Change MX in a test zone and validate mail routing versus outbound SPF evaluation
- Perform a controlled lease renewal from a test client with packet capture
Explanation
Correct Answer
A:
Open a test SSH session to a lab switch and inspect the encrypted connection. It tests the proposed solution safely on an approved representative system. The relevant observation is that an old router is accessible via Telnet but security policy requires encrypted remote CLI administration. The support goal is to choose encrypted terminal management over a cleartext terminal protocol; this pilot action specifically addresses ssh encrypted administration instead of telnet without confusing a different subsystem.
Incorrect Answers
B:
Issue a permitted test query that triggers a TCP retry after a truncated UDP response. That action is appropriate for dns service transport and port 53, normally when a branch resolver answers ordinary UDP name queries but large signed responses fail. Here the observed facts require ssh encrypted administration instead of telnet instead.
C:
Change MX in a test zone and validate mail routing versus outbound SPF evaluation. This action is appropriate for mx and spf dns records distinct purposes, normally when a domain receives email at the wrong destination after DNS changes. Here the observed facts require ssh encrypted administration instead of telnet instead.
D:
Perform a controlled lease renewal from a test client with packet capture. That action is appropriate for dhcp client and server port roles, normally when a new PC never receives an IPv4 lease on its office VLAN. Here the observed facts require ssh encrypted administration instead of telnet instead.
Question 894
At Summit Media, a technician working in cloud and desktop infrastructure review identifies this issue: A purchasing manager believes a separate SaaS login means the vendor built an exclusive physical server for each customer. The desired outcome is to distinguish logical tenant isolation from guaranteed dedicated physical hardware. Only approved service procedures and compatible replacement components may be used. Which controlled service test best evaluates the planned approach?
- Run a safe synthetic load curve in an isolated test service to trigger scale out and back in
- Pilot a private-to-public integration in a controlled test network
- Take a test snapshot then restore it while testing separate backup recovery
- Test authorized isolation between two synthetic SaaS tenant accounts
Explanation
Correct Answer
D:
Test authorized isolation between two synthetic SaaS tenant accounts. It tests the proposed solution safely on an approved representative system. The relevant observation is that a purchasing manager believes a separate SaaS login means the vendor built an exclusive physical server for each customer. The support goal is to distinguish logical tenant isolation from guaranteed dedicated physical hardware; this pilot action specifically addresses multitenancy versus dedicated cloud resources without confusing a different subsystem.
Incorrect Answers
A:
Run a safe synthetic load curve in an isolated test service to trigger scale out and back in. That action is appropriate for cloud elasticity versus fixed provisioning, normally when an online storefront sees traffic triple for two hours and then fall back to normal. Here the observed facts require multitenancy versus dedicated cloud resources instead.
B:
Pilot a private-to-public integration in a controlled test network. That action is appropriate for public versus private versus hybrid cloud, normally when an enterprise must keep one legacy regulatory workload in its own datacenter while scaling an unrelated web front end in a public provider. Here the observed facts require multitenancy versus dedicated cloud resources instead.
C:
Take a test snapshot then restore it while testing separate backup recovery. This action is appropriate for vm snapshot versus independent backup, normally when a developer calls a local VM snapshot a complete disaster recovery backup. Here the observed facts require multitenancy versus dedicated cloud resources instead.
Question 895
At Vertex Media, a technician working in computer equipment refresh identifies this issue: An IT manager insists a parity array survive two failed disks during a long maintenance window. The desired outcome is to select a RAID level providing protection against two disk failures. Only approved service procedures and compatible replacement components may be used. Which controlled service test best evaluates the planned approach?
- Run a non-destructive throughput test using known files on a certified host/cable pair
- Benchmark random reads on approved test HDD and SATA SSD devices
- Simulate a single disk failure in an isolated RAID 1 test array
- Model two drive failures on a disposable RAID 6 lab array
Explanation
Correct Answer
D:
Model two drive failures on a disposable RAID 6 lab array. It tests the proposed solution safely on an approved representative system. The relevant observation is that an IT manager insists a parity array survive two failed disks during a long maintenance window. The support goal is to select a RAID level providing protection against two disk failures; this pilot action specifically addresses raid 5 versus raid 6 dual parity without confusing a different subsystem.
Incorrect Answers
A:
Run a non-destructive throughput test using known files on a certified host/cable pair. This action is appropriate for usb-c versus thunderbolt port capability, normally when an external high-bandwidth storage enclosure only negotiates low speed on a laptop USB-C connector. Here the observed facts require raid 5 versus raid 6 dual parity instead.
B:
Benchmark random reads on approved test HDD and SATA SSD devices. That action is appropriate for ssd versus hdd latency and interface, normally when a mobile user needs low-latency storage and shock resistance but a procurement request specifies a 5400 RPM hard disk. Here the observed facts require raid 5 versus raid 6 dual parity instead.
C:
Simulate a single disk failure in an isolated RAID 1 test array. That action is appropriate for raid 1 mirror capacity and resilience, normally when a file server has two equal 2 TB disks and needs redundancy against one disk failure. Here the observed facts require raid 5 versus raid 6 dual parity instead.
Question 896
On a service ticket for Summit Media, the team observes: A replacement tablet displays an empty work calendar while mail remains accessible. The desired outcome is to restore synchronization by matching the authorized account and sync service. The goal is to restore required function without creating a new security or safety problem. What should the technician verify first to establish the problem?
- Compare signed-in identity, calendar data source, sync permissions and last successful sync
- Inspect supported app management features, existing policy assignment and ownership model
- Check device and cable specifications for DisplayPort Alternate Mode, Thunderbolt or USB4 video support
- Inspect eSIM profiles, carrier activation state, service plan and cellular data toggle
Explanation
Correct Answer
A:
Compare signed-in identity, calendar data source, sync permissions and last successful sync. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a replacement tablet displays an empty work calendar while mail remains accessible. The support goal is to restore synchronization by matching the authorized account and sync service; this diagnose action specifically addresses mobile calendar and contact synchronization without confusing a different subsystem.
Incorrect Answers
B:
Inspect supported app management features, existing policy assignment and ownership model. That action is appropriate for byod mobile application management, normally when staff use personally owned phones to read corporate mail but refuse full device enrollment. Here the observed facts require mobile calendar and contact synchronization instead.
C:
Check device and cable specifications for DisplayPort Alternate Mode, Thunderbolt or USB4 video support. This action is appropriate for usb-c connector versus supported protocol, normally when a user assumes every laptop USB-C port can send video to a USB-C monitor. Here the observed facts require mobile calendar and contact synchronization instead.
D:
Inspect eSIM profiles, carrier activation state, service plan and cellular data toggle. That action is appropriate for mobile esim carrier activation, normally when a company phone has cellular signal bars but cannot attach to its assigned business data plan. Here the observed facts require mobile calendar and contact synchronization instead.
Question 897
On a service ticket for Beacon Group, the team observes: A business phone loses most of its battery overnight despite a healthy battery test. The supporting record states that battery usage reports show one sync application repeatedly waking the device in the background. The desired outcome is to identify energy consumption from software activity rather than immediately swapping the battery. A safe non-destructive test must be used before replacing additional parts. Which planned change most directly resolves the documented issue?
- Remove safe debris using manufacturer-recommended nonconductive methods or arrange service
- Correct the runaway synchronization or app update behavior while preserving necessary notifications
- Enable permitted cellular data and confirm the correct subscriber plan
- Repair the supported backlight or panel power assembly after confirming external video health
Explanation
Correct Answer
B:
Correct the runaway synchronization or app update behavior while preserving necessary notifications. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that battery usage reports show one sync application repeatedly waking the device in the background. The support goal is to identify energy consumption from software activity rather than immediately swapping the battery; this design action specifically addresses background app mobile battery drain without confusing a different subsystem.
Incorrect Answers
A:
Remove safe debris using manufacturer-recommended nonconductive methods or arrange service. This action is appropriate for mobile charging port debris, normally when a phone charges intermittently only when its USB-C plug is held at an angle. Here the observed facts require background app mobile battery drain instead.
C:
Enable permitted cellular data and confirm the correct subscriber plan. This action is appropriate for mobile data failure due to disabled cellular, normally when a smartphone can browse over Wi-Fi but cannot connect to the internet when leaving the office. Here the observed facts require background app mobile battery drain instead.
D:
Repair the supported backlight or panel power assembly after confirming external video health. This action is appropriate for backlight failure on laptop lcd, normally when a laptop screen looks black but a flashlight reveals a faint intact desktop image. Here the observed facts require background app mobile battery drain instead.
Question 898
At Harborworks, a technician working in hardware and network incident triage identifies this issue: A machine passes idle checks but reboots when the GPU and CPU draw peak power together. The supporting record states that the PSU is below vendor recommended capacity and its protection event appears in a diagnostic log. The desired outcome is to differentiate load-related power failure from random OS application crashes. The goal is to restore required function without creating a new security or safety problem. How should the solution first be tested on an approved spare or pilot system?
- Repeat a controlled combined load on a test system with a known-good supply
- Boot with one known-good compatible DIMM and vary only one module at a time
- Feed a short set of labeled test media in the proper orientation
- Boot a test configuration with supported onboard video after safely removing the add-in GPU
Explanation
Correct Answer
A:
Repeat a controlled combined load on a test system with a known-good supply. It tests the proposed solution safely on an approved representative system. The relevant observation is that the PSU is below vendor recommended capacity and its protection event appears in a diagnostic log. The support goal is to differentiate load-related power failure from random OS application crashes; this pilot action specifically addresses psu instability under peak component load without confusing a different subsystem.
Incorrect Answers
B:
Boot with one known-good compatible DIMM and vary only one module at a time. That action is appropriate for desktop memory fault preventing post, normally when a desktop powers on but gives a repeating memory-related beep pattern and no display. Here the observed facts require psu instability under peak component load instead.
C:
Feed a short set of labeled test media in the proper orientation. This action is appropriate for thermal printer paper orientation, normally when a shipping label printer feeds paper but produces completely blank labels. Here the observed facts require psu instability under peak component load instead.
D:
Boot a test configuration with supported onboard video after safely removing the add-in GPU. That action is appropriate for post beep code interpretation and expansion-card isolation, normally when a newly upgraded desktop beeps at startup and shows no BIOS screen. Here the observed facts require psu instability under peak component load instead.
Question 899
A support request at Horizon College presents this problem: A support buyer mistakes 144 Hz for a count of display pixels when comparing two monitors. The supporting record states that the spec sheet lists 1920x1080 pixels and a 144 Hz refresh frequency as separate attributes. The desired outcome is to differentiate image pixel count from screen updates per second. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. Which diagnostic check best distinguishes the relevant fault?
- Check touch controller reporting and the glass digitizer surface instead of replacing the inverter
- Inspect each RJ45 conductor color order and wiremap tester results
- Compare IPS and TN viewing-angle color shifts, calibration and target workload
- Inspect horizontal and vertical pixel dimensions separately from rated Hz and link support
Explanation
Correct Answer
D:
Inspect horizontal and vertical pixel dimensions separately from rated Hz and link support. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the spec sheet lists 1920x1080 pixels and a 144 Hz refresh frequency as separate attributes. The support goal is to differentiate image pixel count from screen updates per second; this diagnose action specifically addresses refresh rate versus screen resolution without confusing a different subsystem.
Incorrect Answers
A:
Check touch controller reporting and the glass digitizer surface instead of replacing the inverter. That action is appropriate for digitizer input versus backlight inverter, normally when a convertible LCD image is visible but finger touches no longer register at a specific region. Here the observed facts require refresh rate versus screen resolution instead.
B:
Inspect each RJ45 conductor color order and wiremap tester results. This action is appropriate for t568a versus t568b rj45 terminations, normally when a newly crimped eight-wire Ethernet cable fails a wiremap test because one end follows T568A and the other T568B. Here the observed facts require refresh rate versus screen resolution instead.
C:
Compare IPS and TN viewing-angle color shifts, calibration and target workload. That action is appropriate for ips versus tn versus oled displays, normally when a graphic designer prioritizes consistent viewing angles and color accuracy over lowest display price. Here the observed facts require refresh rate versus screen resolution instead.
Question 900
On a service ticket for Bluefin Logistics, the team observes: A mirrored NAS reports one disk failed while files remain available. The supporting record states that the array state is degraded and the replacement disk must match controller support and capacity. The desired outcome is to restore RAID redundancy without wiping the surviving volume. Only approved service procedures and compatible replacement components may be used. Which post-repair signal best detects regression or repeat exposure?
- Monitor firmware resets and missing boot entries
- Monitor pickup count and repeated jam positions
- Monitor BIOS lane-sharing changes and unsupported replacement drive orders
- Monitor rebuild progress and additional SMART failures
Explanation
Correct Answer
D:
Monitor rebuild progress and additional SMART failures. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the array state is degraded and the replacement disk must match controller support and capacity. The support goal is to restore RAID redundancy without wiping the surviving volume; this monitor action specifically addresses degraded raid after a failed member without confusing a different subsystem.
Incorrect Answers
A:
Monitor firmware resets and missing boot entries. This action is appropriate for uefi boot order after a second drive, normally when a computer reports no bootable operating system after a new secondary drive was added. Here the observed facts require degraded raid after a failed member instead.
B:
Monitor pickup count and repeated jam positions. This action is appropriate for laser printer repeated paper jams at pickup, normally when a laser printer jams on the first page when it tries to feed paper from tray 1. Here the observed facts require degraded raid after a failed member instead.
C:
Monitor BIOS lane-sharing changes and unsupported replacement drive orders. This action is appropriate for nvme ssd not detected after installation, normally when a new NVMe SSD is absent from firmware and the storage installer. Here the observed facts require degraded raid after a failed member instead.
