CompTIA 220-1201 Practice Test 66
Question 650
A support request at Westbrook Energy presents this problem: A shipping label printer feeds paper but produces completely blank labels. The supporting record states that the printer uses direct-thermal media and its paper roll has been installed with the coated side facing away from the heating element. The desired outcome is to diagnose thermal paper orientation rather than ink or toner depletion. Any configuration change must be reversible and validated on a controlled test device. Which controlled service test best evaluates the planned approach?
- Test several sheets from tray 1 after a supported roller service
- Select the existing OS boot manager temporarily on a test PC
- Run one controlled cleaning cycle and print a nozzle verification pattern
- Feed a short set of labeled test media in the proper orientation
Explanation
Correct Answer
D:
Feed a short set of labeled test media in the proper orientation. It tests the proposed solution safely on an approved representative system. The relevant observation is that the printer uses direct-thermal media and its paper roll has been installed with the coated side facing away from the heating element. The support goal is to diagnose thermal paper orientation rather than ink or toner depletion; this pilot action specifically addresses thermal printer paper orientation without confusing a different subsystem.
Incorrect Answers
A:
Test several sheets from tray 1 after a supported roller service. 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 thermal printer paper orientation instead.
B:
Select the existing OS boot manager temporarily on a test PC. 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 thermal printer paper orientation instead.
C:
Run one controlled cleaning cycle and print a nozzle verification pattern. This action is appropriate for inkjet horizontal banding and nozzle obstruction, normally when an inkjet photo printer produces blank horizontal stripes in cyan images. Here the observed facts require thermal printer paper orientation instead.
Question 651
On a service ticket for Stonebridge Research, the team observes: A customer receives a fiber-to-the-premises service but attempts to connect the optical fiber directly to a DOCSIS cable modem. The supporting record states that the provider hands off optical PON through an optical network terminal. The desired outcome is to choose access equipment that terminates the actual carrier medium. The goal is to restore required function without creating a new security or safety problem. Which diagnostic check best distinguishes the relevant fault?
- Sum device PoE classes and actual draw against port limits and switch total budget
- Compare DHCP lease options, configured DNS server, and forward lookup results
- Confirm provider handoff, optical or coaxial medium and customer Ethernet demarcation
- Check subnet masks, default gateways and configured inter-subnet routes
Explanation
Correct Answer
C:
Confirm provider handoff, optical or coaxial medium and customer Ethernet demarcation. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the provider hands off optical PON through an optical network terminal. The support goal is to choose access equipment that terminates the actual carrier medium; this diagnose action specifically addresses ont versus cable modem access equipment without confusing a different subsystem.
Incorrect Answers
A:
Sum device PoE classes and actual draw against port limits and switch total budget. That action is appropriate for poe switch power budget, normally when new IP cameras power off when all connected access points and phones start at once. Here the observed facts require ont versus cable modem access equipment instead.
B:
Compare DHCP lease options, configured DNS server, and forward lookup results. 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 ont versus cable modem access equipment instead.
D:
Check subnet masks, default gateways and configured inter-subnet routes. That action is appropriate for router versus layer 2 switch forwarding, normally when two PCs on separate IPv4 subnets can communicate within their own LANs but not across subnets. Here the observed facts require ont versus cable modem access equipment instead.
Question 652
A support request at Clearwater Telecom presents this problem: 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. What should the technician recommend as the corrective approach?
- Disconnect the former host if required and put the headset into manufacturer pairing mode
- Choose a supported video-capable port or active adapter instead of relying on connector shape
- Choose an active stylus certified for the device's digitizer protocol
- Specify a supported DDR4 SODIMM of the correct capacity instead of desktop or different-generation modules
Explanation
Correct Answer
A:
Disconnect the former host if required and put the headset into manufacturer pairing mode. It corrects the documented cause using the compatible technology and support constraints. 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 design action specifically addresses bluetooth headset pairing without confusing a different subsystem.
Incorrect Answers
B:
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 bluetooth headset pairing instead.
C:
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 bluetooth headset pairing instead.
D:
Specify a supported DDR4 SODIMM of the correct capacity instead of desktop or different-generation modules. 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.
Question 653
On a service ticket for Crescent Operations, the team observes: A laptop can ping 8.8.8.8 but cannot open a business website by its domain name. The desired outcome is to troubleshoot name resolution separately from basic routed network access. Any configuration change must be reversible and validated on a controlled test device. Which configuration or repair action best addresses the stated requirement?
- Restore the intended voice and data VLAN configuration with appropriate scope
- Replace the defective patch lead and inspect the wall jack before blaming DNS
- Correct the DNS server configuration and flush stale failed resolution records if appropriate
- Restore the correct DHCP relay or server reachability for that VLAN
Explanation
Correct Answer
C:
Correct the DNS server configuration and flush stale failed resolution records if appropriate. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a laptop can ping 8.8.8.8 but cannot open a business website by its domain name. The support goal is to troubleshoot name resolution separately from basic routed network access; this design action specifically addresses dns failure with working ip connectivity without confusing a different subsystem.
Incorrect Answers
A:
Restore the intended voice and data VLAN configuration with appropriate scope. That action is appropriate for vlan mismatch causing one desk to lose access, normally when a desk phone and PC stop reaching their correct services after a switch port change. Here the observed facts require dns failure with working ip connectivity instead.
B:
Replace the defective patch lead and inspect the wall jack before blaming DNS. This 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 dns failure with working ip connectivity instead.
D:
Restore the correct DHCP relay or server reachability for that VLAN. That action is appropriate for dhcp failure and 169.254 apipa symptom, normally when an office PC obtains a 169.254 address and cannot reach internet destinations. Here the observed facts require dns failure with working ip connectivity instead.
Question 654
A support request at Maplebank Ltd presents this problem: A tablet repeatedly loses a wireless barcode scanner despite normal Wi-Fi service. The supporting record states that the scanner battery is weak and it often reconnects to a nearby previously paired device. The desired outcome is to differentiate Bluetooth accessory power and pairing from WLAN connection quality. User data and business service continuity must be preserved. Which post-repair signal best detects regression or repeat exposure?
- Monitor battery warnings and unexpected device handoffs
- Monitor repeat cable wear, overheating and loose plug fit
- Monitor firmware resets and missing boot entries
- Monitor data caps, roaming restrictions and carrier registration changes
Explanation
Correct Answer
A:
Monitor battery warnings and unexpected device handoffs. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the scanner battery is weak and it often reconnects to a nearby previously paired device. The support goal is to differentiate Bluetooth accessory power and pairing from WLAN connection quality; this monitor action specifically addresses bluetooth accessory reconnect failure without confusing a different subsystem.
Incorrect Answers
B:
Monitor repeat cable wear, overheating and loose plug fit. That 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 bluetooth accessory reconnect failure instead.
C:
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 bluetooth accessory reconnect failure instead.
D:
Monitor data caps, roaming restrictions and carrier registration changes. That 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 bluetooth accessory reconnect failure instead.
Question 655
During Cedar Education's end-user troubleshooting, the technician encounters this condition: A shared monochrome printer prints a fixed black vertical streak even after a toner refill. The desired outcome is to identify imaging drum defects instead of wasting printer network troubleshooting time. User data and business service continuity must be preserved. How should the solution first be tested on an approved spare or pilot system?
- Print a known test pattern after substituting a known-good imaging unit
- Test several sheets from tray 1 after a supported roller service
- Run a short controlled load test after servicing cooling on a lab desktop
- Run one controlled cleaning cycle and print a nozzle verification pattern
Explanation
Correct Answer
A:
Print a known test pattern after substituting a known-good imaging unit. It tests the proposed solution safely on an approved representative system. The relevant observation is that a shared monochrome printer prints a fixed black vertical streak even after a toner refill. The support goal is to identify imaging drum defects instead of wasting printer network troubleshooting time; this pilot action specifically addresses laser repeated streaks from drum defect without confusing a different subsystem.
Incorrect Answers
B:
Test several sheets from tray 1 after a supported roller service. That 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 laser repeated streaks from drum defect instead.
C:
Run a short controlled load test after servicing cooling on a lab desktop. 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 laser repeated streaks from drum defect instead.
D:
Run one controlled cleaning cycle and print a nozzle verification pattern. That action is appropriate for inkjet horizontal banding and nozzle obstruction, normally when an inkjet photo printer produces blank horizontal stripes in cyan images. Here the observed facts require laser repeated streaks from drum defect instead.
Question 656
A support request at Keystone Health presents this problem: A notebook appears blank unless the screen is illuminated from an outside flashlight. The desired outcome is to distinguish backlight or power-circuit failure from GPU rendering failure. The goal is to restore required function without creating a new security or safety problem. Which planned change most directly resolves the documented issue?
- Repair the supported backlight or panel power assembly after confirming external video health
- Select the correct HDMI input and supported duplicate or extend mode
- Replace the suspect cable and secure connectors without unnecessary GPU replacement
- Enable permitted cellular data and confirm the correct subscriber plan
Explanation
Correct Answer
A:
Repair the supported backlight or panel power assembly after confirming external video health. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a notebook appears blank unless the screen is illuminated from an outside flashlight. The support goal is to distinguish backlight or power-circuit failure from GPU rendering failure; this design action specifically addresses backlight failure on laptop lcd without confusing a different subsystem.
Incorrect Answers
B:
Select the correct HDMI input and supported duplicate or extend mode. That action is appropriate for projector wrong input versus computer failure, normally when a conference room projector displays a no-signal message while the laptop works locally. Here the observed facts require backlight failure on laptop lcd instead.
C:
Replace the suspect cable and secure connectors without unnecessary GPU replacement. That 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 backlight failure on laptop lcd instead.
D:
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 backlight failure on laptop lcd instead.
Question 657
At Acorn Foods, a technician working in computer equipment refresh identifies this issue: A virtualization server must survive failure of one power supply without rebooting all guests. The desired outcome is to choose a supported redundant power configuration and test failover safely. User data and business service continuity must be preserved. Which planned change most directly resolves the documented issue?
- Install matched redundant modules and independent approved input feeds
- Use an appropriate rated PSU supporting the 20+4-pin motherboard and GPU power requirements
- Require authenticated badge or PIN release of sensitive print jobs
- Use the new PSU's specified cables rather than assuming modular connectors are interchangeable
Explanation
Correct Answer
A:
Install matched redundant modules and independent approved input feeds. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a virtualization server must survive failure of one power supply without rebooting all guests. The support goal is to choose a supported redundant power configuration and test failover safely; this design action specifically addresses redundant psu failover without confusing a different subsystem.
Incorrect Answers
B:
Use an appropriate rated PSU supporting the 20+4-pin motherboard and GPU power requirements. That action is appropriate for psu wattage and 20+4 atx connector, normally when a desktop upgrade adds a high-power GPU and the PC abruptly powers off during intensive graphics workloads. Here the observed facts require redundant psu failover instead.
C:
Require authenticated badge or PIN release of sensitive print jobs. This action is appropriate for secure pull-print and release authentication, normally when confidential reports regularly sit unclaimed in a shared hallway printer's output tray. Here the observed facts require redundant psu failover instead.
D:
Use the new PSU's specified cables rather than assuming modular connectors are interchangeable. 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 redundant psu failover instead.
Question 658
During Acorn Foods's small-office network service desk, the technician encounters this condition: A user can ping a shared Windows file server but cannot map a network share. The supporting record states that a network rule permits RDP 3389 to the host but blocks SMB 445. The desired outcome is to identify the protocol and port needed for Windows file share access. A safe non-destructive test must be used before replacing additional parts. What should the technician verify first to establish the problem?
- Inspect cable labels, both jack ends and tester wiremap indications
- Review the blocked query sizes, truncated-response flag and firewall rules for UDP and TCP 53
- Compare effective TCP 445 connectivity, SMB service state and share authorization
- Inspect UDP 68 client requests, UDP 67 server responses and relay configuration across the VLAN
Explanation
Correct Answer
C:
Compare effective TCP 445 connectivity, SMB service state and share authorization. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a network rule permits RDP 3389 to the host but blocks SMB 445. The support goal is to identify the protocol and port needed for Windows file share access; this diagnose action specifically addresses smb file sharing port versus rdp without confusing a different subsystem.
Incorrect Answers
A:
Inspect cable labels, both jack ends and tester wiremap indications. 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 smb file sharing port versus rdp instead.
B:
Review the blocked query sizes, truncated-response flag and firewall rules for UDP and TCP 53. 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 smb file sharing port versus rdp instead.
D:
Inspect UDP 68 client requests, UDP 67 server responses and relay configuration across the VLAN. 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 smb file sharing port versus rdp instead.
Question 659
At Maplebank Ltd, a technician working in desktop hardware service bench identifies this issue: A monochrome laser printer produces uniformly faint pages after many high-volume print jobs. The supporting record states that the toner cartridge reports near-empty and an approved replacement cartridge is available. The desired outcome is to identify toner depletion separately from inkjet printhead faults. Any configuration change must be reversible and validated on a controlled test device. Which acceptance result best demonstrates the issue is resolved?
- Verify both pages print correctly on the requested paper with intended orientation
- Verify toner density improves consistently across the page
- Verify sustained workload temperatures stay within processor limits and throttling ceases
- Verify full color nozzle pattern without excessive ink consumption
Explanation
Correct Answer
B:
Verify toner density improves consistently across the page. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that the toner cartridge reports near-empty and an approved replacement cartridge is available. The support goal is to identify toner depletion separately from inkjet printhead faults; this validate action specifically addresses laser printer faded output and toner without confusing a different subsystem.
Incorrect Answers
A:
Verify both pages print correctly on the requested paper with intended orientation. 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 laser printer faded output and toner instead.
C:
Verify sustained workload temperatures stay within processor limits and throttling ceases. This action is appropriate for cpu heatsink thermal interface, normally when a workstation reaches a thermal limit seconds after a cooler was replaced. Here the observed facts require laser printer faded output and toner instead.
D:
Verify full color nozzle pattern without excessive ink consumption. That action is appropriate for inkjet printhead clogging, normally when an inkjet printer leaves missing color bands although cartridges contain ink. Here the observed facts require laser printer faded output and toner instead.
Question 660
On a service ticket for Vertex Media, the team observes: A user assumes every laptop USB-C port can send video to a USB-C monitor. The supporting record states that the port supports USB data and charging but not DisplayPort Alternate Mode. The desired outcome is to differentiate connector shape from electrical and protocol capabilities. The customer requires a verified fix rather than a guess based on one symptom. Which controlled service test best evaluates the planned approach?
- Connect a known video-capable test host and compare it with the data-only port
- 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
- Create one harmless test appointment and synchronize through the chosen enterprise account
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 the port supports USB data and charging but not DisplayPort Alternate Mode. 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:
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 usb-c connector versus supported protocol instead.
C:
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 usb-c connector versus supported protocol instead.
D:
Create one harmless test appointment and synchronize through the chosen enterprise account. This action is appropriate for mobile calendar and contact synchronization, normally when a user's phone receives mail but calendar edits never appear on the company laptop. Here the observed facts require usb-c connector versus supported protocol instead.
