CompTIA 220-1201 Practice Test 13
Question 120
At Juniper Tech, a technician working in workplace mobile support identifies this issue: A notebook loses Wi-Fi range after a screen repair while its wireless adapter remains detected. The desired outcome is to restore the wireless antenna path without replacing a healthy radio. Any configuration change must be reversible and validated on a controlled test device. What observation would verify successful service restoration?
- Verify the new battery sits flat, charges normally, and the enclosure closes without pressure
- Verify mobile data works with Wi-Fi off and voice features meet plan support
- Confirm user files and boot integrity are restored and encryption reports protected state
- Compare Wi-Fi received signal strength and roaming stability before and after reconnection
Explanation
Correct Answer
D:
Compare Wi-Fi received signal strength and roaming stability before and after reconnection. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a notebook loses Wi-Fi range after a screen repair while its wireless adapter remains detected. The support goal is to restore the wireless antenna path without replacing a healthy radio; this validate action specifically addresses laptop wi-fi antenna reconnection without confusing a different subsystem.
Incorrect Answers
A:
Verify the new battery sits flat, charges normally, and the enclosure closes without pressure. This action is appropriate for swollen laptop battery replacement, normally when a business laptop has a lifted trackpad and a visibly swollen internal lithium-ion battery. Here the observed facts require laptop wi-fi antenna reconnection instead.
B:
Verify mobile data works with Wi-Fi off and voice features meet plan support. This 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 laptop wi-fi antenna reconnection instead.
C:
Confirm user files and boot integrity are restored and encryption reports protected state. This action is appropriate for laptop ssd replacement and encryption, normally when a laptop SSD is failing SMART health checks and holds company data protected with full-disk encryption. Here the observed facts require laptop wi-fi antenna reconnection instead.
Question 121
During Falcon Transit's computer equipment refresh, the technician encounters this condition: A traveling employee's laptop suffers slow random reads and vibration-related drive failures. The desired outcome is to choose a solid-state storage device for random-access latency and portability. The technician must document observations separately from assumptions. What should the technician recommend as the corrective approach?
- Select a compatible SSD rather than a spinning HDD for the specified latency and shock profile
- Use RAID 6 when the stated requirement is two-drive fault tolerance
- Configure a supported two-disk RAID 1 mirror giving approximately one disk of usable capacity
- Use the correct desktop DIMM rather than forcing a laptop SODIMM into the socket
Explanation
Correct Answer
A:
Select a compatible SSD rather than a spinning HDD for the specified latency and shock profile. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a traveling employee's laptop suffers slow random reads and vibration-related drive failures. The support goal is to choose a solid-state storage device for random-access latency and portability; this design action specifically addresses ssd versus hdd latency and interface without confusing a different subsystem.
Incorrect Answers
B:
Use RAID 6 when the stated requirement is two-drive fault tolerance. This action is appropriate for raid 5 versus raid 6 dual parity, normally when a four-disk production array must remain available during any two simultaneous drive failures. Here the observed facts require ssd versus hdd latency and interface instead.
C:
Configure a supported two-disk RAID 1 mirror giving approximately one disk of usable capacity. This 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 ssd versus hdd latency and interface instead.
D:
Use the correct desktop DIMM rather than forcing a laptop SODIMM into the socket. This action is appropriate for sodimm versus dimm form factor, normally when a desktop repair requires replacement memory but the spare part comes from a notebook. Here the observed facts require ssd versus hdd latency and interface instead.
Question 122
On a service ticket for Maplebank Ltd, the team observes: A university plans a 6 km building interconnect using a short-reach multimode transceiver. The desired outcome is to choose optical media and transceivers matched to distance and wavelength. User data and business service continuity must be preserved. Which acceptance result best demonstrates the issue is resolved?
- Verify drive detection and intended interface performance without forcing a mismatched module
- Confirm the optical receive power and link speed meet both transceiver specifications
- Verify signed media boot and unsigned test boot is rejected by policy
- Verify the negotiated link and measured transfer rate match the supported mode
Explanation
Correct Answer
B:
Confirm the optical receive power and link speed meet both transceiver specifications. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a university plans a 6 km building interconnect using a short-reach multimode transceiver. The support goal is to choose optical media and transceivers matched to distance and wavelength; this validate action specifically addresses single-mode versus multimode fiber without confusing a different subsystem.
Incorrect Answers
A:
Verify drive detection and intended interface performance without forcing a mismatched module. This action is appropriate for nvme pcie versus sata storage interface, normally when a technician orders an M.2 SSD for a motherboard slot that supports only SATA signaling. Here the observed facts require single-mode versus multimode fiber instead.
C:
Verify signed media boot and unsigned test boot is rejected by policy. This action is appropriate for uefi secure boot versus boot order, normally when a laptop can start a trusted OS but prompts when an unsigned bootloader is inserted. Here the observed facts require single-mode versus multimode fiber instead.
D:
Verify the negotiated link and measured transfer rate match the supported mode. 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 single-mode versus multimode fiber instead.
Question 123
At Summit Media, a technician working in computer equipment refresh identifies this issue: An employee assumes any phone-style USB-C lead provides the bandwidth of a Thunderbolt SSD enclosure. The desired outcome is to determine host and cable protocol support rather than assuming a USB-C shape is sufficient. The technician must document observations separately from assumptions. What should the technician verify first to establish the problem?
- Read motherboard M.2 keying and SATA or PCIe lane support alongside drive protocol
- Check usable capacity, minimum disk count and failure tolerance for RAID 5 and RAID 6
- Check fiber type, distance budget, wavelength and transceiver compatibility
- Check the device's Thunderbolt markings, controller support and cable type
Explanation
Correct Answer
D:
Check the device's Thunderbolt markings, controller support and cable type. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that an employee assumes any phone-style USB-C lead provides the bandwidth of a Thunderbolt SSD enclosure. The support goal is to determine host and cable protocol support rather than assuming a USB-C shape is sufficient; this diagnose action specifically addresses usb-c versus thunderbolt port capability without confusing a different subsystem.
Incorrect Answers
A:
Read motherboard M.2 keying and SATA or PCIe lane support alongside drive protocol. This action is appropriate for nvme pcie versus sata storage interface, normally when a technician orders an M.2 SSD for a motherboard slot that supports only SATA signaling. Here the observed facts require usb-c versus thunderbolt port capability instead.
B:
Check usable capacity, minimum disk count and failure tolerance for RAID 5 and RAID 6. This action is appropriate for raid 5 versus raid 6 dual parity, normally when a four-disk production array must remain available during any two simultaneous drive failures. Here the observed facts require usb-c versus thunderbolt port capability instead.
C:
Check fiber type, distance budget, wavelength and transceiver compatibility. This action is appropriate for single-mode versus multimode fiber, normally when a campus backbone spans several kilometers between buildings and requires high throughput. Here the observed facts require usb-c versus thunderbolt port capability instead.
Question 124
At Riverlight Retail, a technician working in workplace mobile support identifies this issue: A portable computer loses battery while attached to a cheap dock driving two 4K monitors. The desired outcome is to choose a dock meeting host charging and display requirements. The customer requires a verified fix rather than a guess based on one symptom. What should the technician verify first to establish the problem?
- Inspect OS-level location services, app permission and accuracy settings
- Check the convertible's active pen standard and supported pressure or hover features
- Check device and cable specifications for DisplayPort Alternate Mode, Thunderbolt or USB4 video support
- Compare laptop USB-C video modes, dock Power Delivery wattage, and supported display count and resolution
Explanation
Correct Answer
D:
Compare laptop USB-C video modes, dock Power Delivery wattage, and supported display count and resolution. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a portable computer loses battery while attached to a cheap dock driving two 4K monitors. The support goal is to choose a dock meeting host charging and display requirements; this diagnose action specifically addresses docking station display and power capability without confusing a different subsystem.
Incorrect Answers
A:
Inspect OS-level location services, app permission and accuracy settings. This action is appropriate for location permission for navigation, normally when a dispatch app cannot show a user's current position on an otherwise connected smartphone. Here the observed facts require docking station display and power capability instead.
B:
Check the convertible's active pen standard and supported pressure or hover features. This action is appropriate for active stylus digitizer compatibility, normally when a designer needs pen pressure and palm rejection on a convertible laptop. Here the observed facts require docking station display and power capability 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 docking station display and power capability instead.
Question 125
At Fountain Transport, a technician working in branch networking support identifies this issue: A security investigation cannot correlate firewall and switch events because their clocks disagree. The desired outcome is to identify the role of network time synchronization separate from log transport. The customer requires a verified fix rather than a guess based on one symptom. What should support monitor to catch a recurrence of the same failure?
- Monitor DNS response failures and incorrect DHCP DNS option deployment
- Monitor VLAN trunk policy and remote VPN session errors as distinct controls
- Monitor backend health, distribution and excessive failover events
- Monitor NTP offset, source reachability and logger ingestion separately
Explanation
Correct Answer
D:
Monitor NTP offset, source reachability and logger ingestion separately. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a security investigation cannot correlate firewall and switch events because their clocks disagree. The support goal is to identify the role of network time synchronization separate from log transport; this monitor action specifically addresses ntp time service versus centralized syslog without confusing a different subsystem.
Incorrect Answers
A:
Monitor DNS response failures and incorrect DHCP DNS option deployment. This action is appropriate for dns resolution versus dhcp address assignment, normally when a workstation has a valid IPv4 address, gateway and lease but cannot reach services by hostname. Here the observed facts require ntp time service versus centralized syslog instead.
B:
Monitor VLAN trunk policy and remote VPN session errors as distinct controls. This action is appropriate for vlan segmentation versus vpn encrypted tunneling, normally when a small office needs guest Wi-Fi isolated from payroll devices but also needs secure remote employee access. Here the observed facts require ntp time service versus centralized syslog instead.
C:
Monitor backend health, distribution and excessive failover events. This action is appropriate for load balancer versus proxy server functions, normally when a web service needs requests distributed across three application servers with failed nodes removed automatically. Here the observed facts require ntp time service versus centralized syslog instead.
Question 126
On a service ticket for Lakeside Analytics, the team observes: A database server needs fast disk I/O and redundancy with four equal drives. The supporting record states that the platform supports RAID 10 but not arbitrary two-disk RAID 10 layouts. The desired outcome is to select combined striping and mirroring with the correct minimum disk count. Only approved service procedures and compatible replacement components may be used. What should the technician verify first to establish the problem?
- Check usable capacity, minimum disk count and failure tolerance for RAID 5 and RAID 6
- Compare IPS and TN viewing-angle color shifts, calibration and target workload
- Inspect controller support, even drive count and RAID 10 mirror grouping
- Compare capacity and fault tolerance of two-disk stripe versus mirror
Explanation
Correct Answer
C:
Inspect controller support, even drive count and RAID 10 mirror grouping. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the platform supports RAID 10 but not arbitrary two-disk RAID 10 layouts. The support goal is to select combined striping and mirroring with the correct minimum disk count; this diagnose action specifically addresses raid 10 mirrored striped array without confusing a different subsystem.
Incorrect Answers
A:
Check usable capacity, minimum disk count and failure tolerance for RAID 5 and RAID 6. This action is appropriate for raid 5 versus raid 6 dual parity, normally when a four-disk production array must remain available during any two simultaneous drive failures. Here the observed facts require raid 10 mirrored striped array instead.
B:
Compare IPS and TN viewing-angle color shifts, calibration and target workload. This 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 raid 10 mirrored striped array instead.
D:
Compare capacity and fault tolerance of two-disk stripe versus mirror. This 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 10 mirrored striped array instead.
Question 127
A support request at Horizon College presents this problem: A technician proposes RAID 10 on two disks and claims any two drive failures would be harmless. The desired outcome is to select combined striping and mirroring with the correct minimum disk count. User data and business service continuity must be preserved. What should support monitor to catch a recurrence of the same failure?
- Monitor toner warnings and repetitive cartridge defects
- Monitor mirror health and successful independent backups
- Monitor patrol reads, failed drives and rebuild exposure
- Monitor drive grouping and failed member replacement
Explanation
Correct Answer
D:
Monitor drive grouping and failed member replacement. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a technician proposes RAID 10 on two disks and claims any two drive failures would be harmless. The support goal is to select combined striping and mirroring with the correct minimum disk count; this monitor action specifically addresses raid 10 mirrored striped array without confusing a different subsystem.
Incorrect Answers
A:
Monitor toner warnings and repetitive cartridge defects. This action is appropriate for laser printer faded output and toner, normally when a monochrome laser printer produces uniformly faint pages after many high-volume print jobs. Here the observed facts require raid 10 mirrored striped array instead.
B:
Monitor mirror health and successful independent backups. This 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 10 mirrored striped array instead.
C:
Monitor patrol reads, failed drives and rebuild exposure. This action is appropriate for raid 5 versus raid 6 dual parity, normally when a four-disk production array must remain available during any two simultaneous drive failures. Here the observed facts require raid 10 mirrored striped array instead.
Question 128
At Northland Labs, a technician working in hardware and network incident triage identifies this issue: A workstation loses Ethernet connection whenever its patch lead is bent. The supporting record states that switch counters show link up/down events and interface errors but its IP settings are valid. The desired outcome is to isolate physical cable or connector failure before changing network services. The customer requires a verified fix rather than a guess based on one symptom. Which diagnostic check best distinguishes the relevant fault?
- Inspect link LEDs, cable jacket, RJ45 latch and switch port error counters
- Inspect temperature telemetry, fan RPM, airflow blockage and heatsink contact
- Check resolver settings, DNS request responses and direct-IP reachability
- Inspect channel use, signal strength, client retries and non-Wi-Fi interference sources
Explanation
Correct Answer
A:
Inspect link LEDs, cable jacket, RJ45 latch and switch port error counters. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that switch counters show link up/down events and interface errors but its IP settings are valid. The support goal is to isolate physical cable or connector failure before changing network services; this diagnose action specifically addresses copper ethernet link flapping without confusing a different subsystem.
Incorrect Answers
B:
Inspect temperature telemetry, fan RPM, airflow blockage and heatsink contact. This action is appropriate for cpu overheat from failed fan, normally when a desktop shuts off only after several minutes of high CPU utilization. Here the observed facts require copper ethernet link flapping instead.
C:
Check resolver settings, DNS request responses and direct-IP reachability. This 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 copper ethernet link flapping instead.
D:
Inspect channel use, signal strength, client retries and non-Wi-Fi interference sources. 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 copper ethernet link flapping instead.
Question 129
During Monarch Pharmacy's laptop and mobile device repair, the technician encounters this condition: A field technician wants to add RAM to a serviceable laptop that currently uses DDR4 SODIMMs. The supporting record states that the proposed upgrade is a full-sized DDR5 DIMM intended for a desktop board. The desired outcome is to select physically and electrically compatible mobile memory. User data and business service continuity must be preserved. How should the solution first be tested on an approved spare or pilot system?
- Test the camera preview with the shutter closed and reopened on an authorized test laptop
- Test one vendor-approved SODIMM in the serviceable laptop with the battery and power removed
- On a powered-off service unit, reseat the antenna leads with the correct nonconductive tool
- Restore a non-sensitive test backup to the new SSD and verify recovery-key retrieval in a controlled service workflow
Explanation
Correct Answer
B:
Test one vendor-approved SODIMM in the serviceable laptop with the battery and power removed. It tests the proposed solution safely on an approved representative system. The relevant observation is that the proposed upgrade is a full-sized DDR5 DIMM intended for a desktop board. The support goal is to select physically and electrically compatible mobile memory; this pilot action specifically addresses laptop sodimm compatibility without confusing a different subsystem.
Incorrect Answers
A:
Test the camera preview with the shutter closed and reopened on an authorized test laptop. This action is appropriate for physical webcam privacy hardware, normally when a corporate laptop's camera indicator comes on during meetings even when the user thinks video is disabled. Here the observed facts require laptop sodimm compatibility instead.
C:
On a powered-off service unit, reseat the antenna leads with the correct nonconductive tool. This action is appropriate for laptop wi-fi antenna reconnection, normally when after a laptop display assembly replacement, Bluetooth works but Wi-Fi signal is very weak. Here the observed facts require laptop sodimm compatibility instead.
D:
Restore a non-sensitive test backup to the new SSD and verify recovery-key retrieval in a controlled service workflow. This action is appropriate for laptop ssd replacement and encryption, normally when a laptop SSD is failing SMART health checks and holds company data protected with full-disk encryption. Here the observed facts require laptop sodimm compatibility instead.
Question 130
On a service ticket for Stonebridge Research, the team observes: A smartphone can browse over Wi-Fi but cannot connect to the internet when leaving the office. The supporting record states that the SIM is provisioned and cellular data was manually disabled in device settings. The desired outcome is to distinguish cellular configuration from a working Wi-Fi connection. Only approved service procedures and compatible replacement components may be used. Which diagnostic check best distinguishes the relevant fault?
- Inspect per-app usage, background refresh, radio activity and battery health metrics
- Inspect the port for lint, bent pins, moisture indicator and cable seating with power disconnected
- Check cable damage, connector strain, monitor input selection and GPU outputs
- Check cellular toggle, SIM or eSIM provisioning, airplane mode and signal state
Explanation
Correct Answer
D:
Check cellular toggle, SIM or eSIM provisioning, airplane mode and signal state. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the SIM is provisioned and cellular data was manually disabled in device settings. The support goal is to distinguish cellular configuration from a working Wi-Fi connection; this diagnose action specifically addresses mobile data failure due to disabled cellular without confusing a different subsystem.
Incorrect Answers
A:
Inspect per-app usage, background refresh, radio activity and battery health metrics. This action is appropriate for background app mobile battery drain, normally when a business phone loses most of its battery overnight despite a healthy battery test. Here the observed facts require mobile data failure due to disabled cellular instead.
B:
Inspect the port for lint, bent pins, moisture indicator and cable seating with power disconnected. 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 mobile data failure due to disabled cellular instead.
C:
Check cable damage, connector strain, monitor input selection and GPU outputs. This action is appropriate for intermittent monitor image due to video cable, normally when a monitor intermittently goes black when its display cable is moved. Here the observed facts require mobile data failure due to disabled cellular instead.
