CompTIA 220-1201 Practice Test 85
Question 840
On a service ticket for Clearwater Telecom, the team observes: A field worker's Bluetooth earbuds keep reconnecting to a phone instead of a nearby notebook. The desired outcome is to pair the intended audio accessory without erasing unrelated device settings. Only approved service procedures and compatible replacement components may be used. Which inspection most directly confirms the likely cause before changing components?
- Check the laptop service manual, slot type, DDR generation, supported capacity and speed
- Check the convertible's active pen standard and supported pressure or hover features
- Check headset pairing mode, existing connections, Bluetooth visibility and adapter status
- Check device and cable specifications for DisplayPort Alternate Mode, Thunderbolt or USB4 video support
Explanation
Correct Answer
C:
Check headset pairing mode, existing connections, Bluetooth visibility and adapter status. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a field worker's Bluetooth earbuds keep reconnecting to a phone instead of a nearby notebook. The support goal is to pair the intended audio accessory without erasing unrelated device settings; this diagnose action specifically addresses bluetooth headset pairing without confusing a different subsystem.
Incorrect Answers
A:
Check the laptop service manual, slot type, DDR generation, supported capacity and speed. This action is appropriate for laptop sodimm compatibility, normally when a field technician wants to add RAM to a serviceable laptop that currently uses DDR4 SODIMMs. Here the observed facts require bluetooth headset pairing instead.
B:
Check the convertible's active pen standard and supported pressure or hover features. That 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 bluetooth headset pairing instead.
D:
Check device and cable specifications for DisplayPort Alternate Mode, Thunderbolt or USB4 video support. That 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 bluetooth headset pairing instead.
Question 841
A support request at Summit Media presents this problem: An inkjet printer leaves missing color bands although cartridges contain ink. The supporting record states that a nozzle check pattern shows interrupted lines for one color channel. The desired outcome is to use appropriate inkjet printhead maintenance instead of replacing laser consumables. The goal is to restore required function without creating a new security or safety problem. Which planned change most directly resolves the documented issue?
- Run manufacturer-approved printhead cleaning before considering component replacement
- Replace the correct laser toner cartridge and recalibrate if indicated
- Select a listed compatible processor and cooling solution for the board
- Set the intended paper tray, form size and two-sided mode in driver or print server
Explanation
Correct Answer
A:
Run manufacturer-approved printhead cleaning before considering component replacement. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a nozzle check pattern shows interrupted lines for one color channel. The support goal is to use appropriate inkjet printhead maintenance instead of replacing laser consumables; this design action specifically addresses inkjet printhead clogging without confusing a different subsystem.
Incorrect Answers
B:
Replace the correct laser toner cartridge and recalibrate if indicated. That 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 inkjet printhead clogging instead.
C:
Select a listed compatible processor and cooling solution for the board. This action is appropriate for cpu socket matching motherboard, normally when a gaming PC has a motherboard with an AMD processor socket but an Intel CPU was ordered. Here the observed facts require inkjet printhead clogging instead.
D:
Set the intended paper tray, form size and two-sided mode in driver or print server. That action is appropriate for printer duplex and tray settings, normally when a network printer puts letter-size forms on the wrong paper and uses one-sided output. Here the observed facts require inkjet printhead clogging instead.
Question 842
At Granite Capital, a technician working in laptop and mobile device repair identifies this issue: A small-business employee connects two monitors and power to a laptop through a new USB-C dock. The supporting record states that the dock provides insufficient USB-C Power Delivery and its display bandwidth supports only one monitor at the requested resolution. The desired outcome is to choose a dock meeting host charging and display requirements. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. What should the technician recommend as the corrective approach?
- Select a compatible dock and power adapter with adequate charging wattage and video transport
- Choose an active stylus certified for the device's digitizer protocol
- Choose a supported video-capable port or active adapter instead of relying on connector shape
- Disconnect the former host if required and put the headset into manufacturer pairing mode
Explanation
Correct Answer
A:
Select a compatible dock and power adapter with adequate charging wattage and video transport. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that the dock provides insufficient USB-C Power Delivery and its display bandwidth supports only one monitor at the requested resolution. The support goal is to choose a dock meeting host charging and display requirements; this design action specifically addresses docking station display and power capability without confusing a different subsystem.
Incorrect Answers
B:
Choose an active stylus certified for the device's digitizer protocol. That 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:
Choose a supported video-capable port or active adapter instead of relying on connector shape. That 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.
D:
Disconnect the former host if required and put the headset into manufacturer pairing mode. This action is appropriate for bluetooth headset pairing, normally when a wireless headset pairs with a tablet but does not appear on a new laptop's device discovery list. Here the observed facts require docking station display and power capability instead.
Question 843
During Northland Labs's IT virtualization planning, the technician encounters this condition: A developer calls a local VM snapshot a complete disaster recovery backup. The supporting record states that both the VM and its snapshot live on the same single physical disk. The desired outcome is to differentiate state rollback checkpoints from separately stored recoverable backups. Only approved service procedures and compatible replacement components may be used. Which verification result supports the intended technical outcome?
- Verify work executes on the hosted desktop and user policy is enforced centrally
- Verify the application runs in its container while kernel version comes from the host
- Verify guest machines start without depending on an interactive desktop host OS
- Verify rollback works but also confirm independent recovery after simulated host loss
Explanation
Correct Answer
D:
Verify rollback works but also confirm independent recovery after simulated host loss. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that both the VM and its snapshot live on the same single physical disk. The support goal is to differentiate state rollback checkpoints from separately stored recoverable backups; this validate action specifically addresses vm snapshot versus independent backup without confusing a different subsystem.
Incorrect Answers
A:
Verify work executes on the hosted desktop and user policy is enforced centrally. This action is appropriate for vdi versus local desktop processing, normally when a company wants centrally managed user desktops accessed from inexpensive endpoints. Here the observed facts require vm snapshot versus independent backup instead.
B:
Verify the application runs in its container while kernel version comes from the host. This action is appropriate for container isolation versus full virtual machine, normally when a team needs to package one web service and its dependencies but not another complete guest kernel. Here the observed facts require vm snapshot versus independent backup instead.
C:
Verify guest machines start without depending on an interactive desktop host OS. 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 vm snapshot versus independent backup instead.
Question 844
A support request at Summit Media presents this problem: A small office workstation has 192.168.10.80/24 and a gateway incorrectly set to 192.168.11.1. The supporting record states that its peers on 192.168.10.0/24 respond but the default router resides at 192.168.10.1. The desired outcome is to select an on-link default gateway matching the client subnet. The customer requires a verified fix rather than a guess based on one symptom. What observation would verify successful service restoration?
- Verify authorized devices connect securely while obsolete WEP-only modes are unavailable
- Verify healthy nodes continue serving requests and unhealthy nodes leave rotation
- Verify the client receives a valid network address, gateway and DNS options
- Verify routing works without altering the workstation's valid local IP or mask
Explanation
Correct Answer
D:
Verify routing works without altering the workstation's valid local IP or mask. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that its peers on 192.168.10.0/24 respond but the default router resides at 192.168.10.1. The support goal is to select an on-link default gateway matching the client subnet; this validate action specifically addresses ipv4 subnet mask and gateway selection without confusing a different subsystem.
Incorrect Answers
A:
Verify authorized devices connect securely while obsolete WEP-only modes are unavailable. That action is appropriate for soho wireless wpa security setup, normally when a small office access point still allows WEP while newer managed clients support WPA3-Personal. Here the observed facts require ipv4 subnet mask and gateway selection instead.
B:
Verify healthy nodes continue serving requests and unhealthy nodes leave rotation. 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 ipv4 subnet mask and gateway selection instead.
C:
Verify the client receives a valid network address, gateway and DNS options. That action is appropriate for apipa 169.254.x.x missing dhcp lease, normally when a SOHO laptop automatically assigns itself 169.254.42.19 with a 255.255.0.0 mask. Here the observed facts require ipv4 subnet mask and gateway selection instead.
Question 845
A support request at Cedar Education presents this problem: A phone's USB-C charging port cannot drive a desktop display despite matching the cable plug. The desired outcome is to differentiate connector shape from electrical and protocol capabilities. A safe non-destructive test must be used before replacing additional parts. How should the solution first be tested on an approved spare or pilot system?
- Connect a known video-capable test host and compare it with the data-only port
- On a powered-off service unit, reseat the antenna leads with the correct nonconductive tool
- Connect a test laptop, both monitors and the approved dock power supply in a service area
- Pair the headset to a test laptop using supported Bluetooth discovery with the old host out of range
Explanation
Correct Answer
A:
Connect a known video-capable test host and compare it with the data-only port. It tests the proposed solution safely on an approved representative system. The relevant observation is that a phone's USB-C charging port cannot drive a desktop display despite matching the cable plug. The support goal is to differentiate connector shape from electrical and protocol capabilities; this pilot action specifically addresses usb-c connector versus supported protocol without confusing a different subsystem.
Incorrect Answers
B:
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 usb-c connector versus supported protocol instead.
C:
Connect a test laptop, both monitors and the approved dock power supply in a service area. That action is appropriate for docking station display and power capability, normally when a small-business employee connects two monitors and power to a laptop through a new USB-C dock. Here the observed facts require usb-c connector versus supported protocol instead.
D:
Pair the headset to a test laptop using supported Bluetooth discovery with the old host out of range. That action is appropriate for bluetooth headset pairing, normally when a wireless headset pairs with a tablet but does not appear on a new laptop's device discovery list. Here the observed facts require usb-c connector versus supported protocol instead.
Question 846
During Monarch Pharmacy's workplace mobile support, the technician encounters this condition: A field technician's map app shows a stale position although other mobile network functions work. The desired outcome is to restore necessary location access without granting unrelated apps broad tracking. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. How should the solution first be tested on an approved spare or pilot system?
- Pilot managed work apps with a consented BYOD phone and an unprotected personal app
- Test positioning in a permitted location with permission enabled and disabled
- Activate the eSIM on a spare enrolled phone using an approved carrier test profile
- Pair the headset to a test laptop using supported Bluetooth discovery with the old host out of range
Explanation
Correct Answer
B:
Test positioning in a permitted location with permission enabled and disabled. It tests the proposed solution safely on an approved representative system. The relevant observation is that a field technician's map app shows a stale position although other mobile network functions work. The support goal is to restore necessary location access without granting unrelated apps broad tracking; this pilot action specifically addresses location permission for navigation without confusing a different subsystem.
Incorrect Answers
A:
Pilot managed work apps with a consented BYOD phone and an unprotected personal app. 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 location permission for navigation instead.
C:
Activate the eSIM on a spare enrolled phone using an approved carrier test profile. 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 location permission for navigation instead.
D:
Pair the headset to a test laptop using supported Bluetooth discovery with the old host out of range. This action is appropriate for bluetooth headset pairing, normally when a wireless headset pairs with a tablet but does not appear on a new laptop's device discovery list. Here the observed facts require location permission for navigation instead.
Question 847
On a service ticket for Vertex Media, the team observes: A graphic designer prioritizes consistent viewing angles and color accuracy over lowest display price. The supporting record states that the available TN panel shifts colors off-axis while a calibrated IPS panel stays consistent across typical viewing angles. The desired outcome is to choose a display technology aligned with viewing-angle requirements. 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 IPS and TN viewing-angle color shifts, calibration and target workload
- Check the device's Thunderbolt markings, controller support and cable type
- Inspect horizontal and vertical pixel dimensions separately from rated Hz and link support
- Check touch controller reporting and the glass digitizer surface instead of replacing the inverter
Explanation
Correct Answer
A:
Compare IPS and TN viewing-angle color shifts, calibration and target workload. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the available TN panel shifts colors off-axis while a calibrated IPS panel stays consistent across typical viewing angles. The support goal is to choose a display technology aligned with viewing-angle requirements; this diagnose action specifically addresses ips versus tn versus oled displays without confusing a different subsystem.
Incorrect Answers
B:
Check the device's Thunderbolt markings, controller support and cable type. 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 ips versus tn versus oled displays instead.
C:
Inspect horizontal and vertical pixel dimensions separately from rated Hz and link support. That action is appropriate for refresh rate versus screen resolution, normally when a support buyer mistakes 144 Hz for a count of display pixels when comparing two monitors. Here the observed facts require ips versus tn versus oled displays instead.
D:
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 ips versus tn versus oled displays instead.
Question 848
At Northland Labs, a technician working in laptop and mobile device repair identifies this issue: A laptop SSD is failing SMART health checks and holds company data protected with full-disk encryption. The supporting record states that the replacement is a compatible internal SSD but the recovery key has not been escrowed or verified. The desired outcome is to replace storage without losing required user data or encryption recovery access. 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?
- Have a trained technician isolate power and remove the swollen unit using manufacturer service steps
- Connect a test laptop, both monitors and the approved dock power supply in a service area
- 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
D:
Restore a non-sensitive test backup to the new SSD and verify recovery-key retrieval in a controlled service workflow. It tests the proposed solution safely on an approved representative system. The relevant observation is that the replacement is a compatible internal SSD but the recovery key has not been escrowed or verified. The support goal is to replace storage without losing required user data or encryption recovery access; this pilot action specifically addresses laptop ssd replacement and encryption without confusing a different subsystem.
Incorrect Answers
A:
Have a trained technician isolate power and remove the swollen unit using manufacturer service steps. That 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 ssd replacement and encryption instead.
B:
Connect a test laptop, both monitors and the approved dock power supply in a service area. This action is appropriate for docking station display and power capability, normally when a small-business employee connects two monitors and power to a laptop through a new USB-C dock. Here the observed facts require laptop ssd replacement and encryption instead.
C:
On a powered-off service unit, reseat the antenna leads with the correct nonconductive tool. That 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 ssd replacement and encryption instead.
Question 849
A support request at Brookside Agency presents this problem: A warehouse needs coverage through walls at modest data rates while a crowded office needs faster nearby links. The supporting record states that the access points support both 2.4 GHz and 5 GHz with different propagation and channel capacity. The desired outcome is to choose bands according to range and interference rather than assuming one is always superior. User data and business service continuity must be preserved. Which post-repair signal best detects regression or repeat exposure?
- Monitor wireless channel utilization and retransmission patterns
- Monitor NFC reader alignment and Bluetooth pairing failures separately
- Monitor client compatibility and regulatory-domain channel settings after firmware changes
- Watch channel occupancy and weak-signal client retransmission rates
Explanation
Correct Answer
D:
Watch channel occupancy and weak-signal client retransmission rates. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the access points support both 2.4 GHz and 5 GHz with different propagation and channel capacity. The support goal is to choose bands according to range and interference rather than assuming one is always superior; this monitor action specifically addresses 2.4 ghz versus 5 ghz wi-fi trade-offs without confusing a different subsystem.
Incorrect Answers
A:
Monitor wireless channel utilization and retransmission patterns. This action is appropriate for wi-fi analyzer versus network tap, normally when staff complain about busy wireless channels in a meeting room. Here the observed facts require 2.4 ghz versus 5 ghz wi-fi trade-offs instead.
B:
Monitor NFC reader alignment and Bluetooth pairing failures separately. That action is appropriate for nfc short-range tap versus bluetooth pairing, normally when a checkout kiosk must read a contactless badge at a few centimeters, not stream audio across a room. Here the observed facts require 2.4 ghz versus 5 ghz wi-fi trade-offs instead.
C:
Monitor client compatibility and regulatory-domain channel settings after firmware changes. That action is appropriate for 6 ghz wi-fi client compatibility, normally when a new 6 GHz SSID is invisible to several laptops even though 5 GHz works. Here the observed facts require 2.4 ghz versus 5 ghz wi-fi trade-offs instead.
Question 850
A support request at Juniper Tech presents this problem: Authentication logs from two branch routers show conflicting timestamps during the same event. The supporting record states that their clocks drift because NTP synchronization is disabled; syslog collection itself is functioning. The desired outcome is to identify the role of network time synchronization separate from log transport. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. What should be tracked after the fix to maintain service reliability?
- Monitor backend health, distribution and excessive failover events
- Monitor repeated failed pinout tests and cable labeling gaps
- Monitor DNS response failures and incorrect DHCP DNS option deployment
- 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 their clocks drift because NTP synchronization is disabled; syslog collection itself is functioning. 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 backend health, distribution and excessive failover events. That 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.
B:
Monitor repeated failed pinout tests and cable labeling gaps. This action is appropriate for cable tester versus toner and probe, normally when a technician must determine whether a terminated Ethernet run has crossed wires and split pairs. Here the observed facts require ntp time service versus centralized syslog instead.
C:
Monitor DNS response failures and incorrect DHCP DNS option deployment. That 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.
