CompTIA 220-1201 Practice Test 82
Question 810
At Falcon Transit, a technician working in desktop hardware service bench identifies this issue: A convertible LCD image is visible but finger touches no longer register at a specific region. The supporting record states that an external mouse works and display illumination remains stable. The desired outcome is to distinguish touch digitizer trouble from display brightness or backlight faults. The customer requires a verified fix rather than a guess based on one symptom. Which inspection most directly confirms the likely cause before changing components?
- Check touch controller reporting and the glass digitizer surface instead of replacing the inverter
- Read motherboard M.2 keying and SATA or PCIe lane support alongside drive protocol
- 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
A:
Check touch controller reporting and the glass digitizer surface instead of replacing the inverter. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that an external mouse works and display illumination remains stable. The support goal is to distinguish touch digitizer trouble from display brightness or backlight faults; this diagnose action specifically addresses digitizer input versus backlight inverter without confusing a different subsystem.
Incorrect Answers
B:
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 digitizer input versus backlight inverter 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 digitizer input versus backlight inverter instead.
D:
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 digitizer input versus backlight inverter instead.
Question 811
On a service ticket for Riverlight Retail, the team observes: A networked printer must keep the same IPv4 address while the rest of the office remains DHCP-managed. The supporting record states that a reservation can bind the printer's MAC to one address, while an exclusion only keeps a range from dynamic allocation. The desired outcome is to select a stable printer address assignment without disabling office DHCP. Only approved service procedures and compatible replacement components may be used. What should be tracked after the fix to maintain service reliability?
- Monitor NTP offset, source reachability and logger ingestion separately
- Monitor VLAN trunk policy and remote VPN session errors as distinct controls
- Monitor mail bounce reports and unauthorized TXT or MX record drift
- Monitor reservation conflicts and device MAC replacement
Explanation
Correct Answer
D:
Monitor reservation conflicts and device MAC replacement. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a reservation can bind the printer's MAC to one address, while an exclusion only keeps a range from dynamic allocation. The support goal is to select a stable printer address assignment without disabling office DHCP; this monitor action specifically addresses dhcp reservation versus exclusion without confusing a different subsystem.
Incorrect Answers
A:
Monitor NTP offset, source reachability and logger ingestion separately. This action is appropriate for ntp time service versus centralized syslog, normally when authentication logs from two branch routers show conflicting timestamps during the same event. Here the observed facts require dhcp reservation versus exclusion instead.
B:
Monitor VLAN trunk policy and remote VPN session errors as distinct controls. That 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 dhcp reservation versus exclusion instead.
C:
Monitor mail bounce reports and unauthorized TXT or MX record drift. That 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 dhcp reservation versus exclusion instead.
Question 812
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. What should support monitor to catch a recurrence of the same failure?
- Watch technician rework rates and damaged connector latches
- Monitor driver updates that reset mode selection
- Monitor new panel substitutions and reported off-axis color changes
- Monitor touch dead zones and accidental touch events after repairs
Explanation
Correct Answer
B:
Monitor driver updates that reset mode selection. It tracks recurrence of the specific failure mechanism over time. 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 monitor action specifically addresses refresh rate versus screen resolution without confusing a different subsystem.
Incorrect Answers
A:
Watch technician rework rates and damaged connector latches. 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:
Monitor new panel substitutions and reported off-axis color changes. 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.
D:
Monitor touch dead zones and accidental touch events after repairs. 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.
Question 813
A support request at Bluefin Logistics presents this problem: A new router comes with a legacy wireless security mode that corporate policy prohibits. The desired outcome is to configure wireless authentication matching modern supported clients and documented business exceptions. Only approved service procedures and compatible replacement components may be used. What should the technician recommend as the corrective approach?
- Configure the reachable 192.168.10.1 gateway on the office client
- Use supported WPA3-Personal or appropriate WPA2-AES compatibility with strong credentials and retire WEP
- Restore correct DHCP reachability rather than treating the APIPA address as a routable internet address
- Choose the suitable provisioned fiber plan when bidirectional transfer capacity is the dominant requirement
Explanation
Correct Answer
B:
Use supported WPA3-Personal or appropriate WPA2-AES compatibility with strong credentials and retire WEP. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a new router comes with a legacy wireless security mode that corporate policy prohibits. The support goal is to configure wireless authentication matching modern supported clients and documented business exceptions; this design action specifically addresses soho wireless wpa security setup without confusing a different subsystem.
Incorrect Answers
A:
Configure the reachable 192.168.10.1 gateway on the office client. This action is appropriate for ipv4 subnet mask and gateway selection, normally when a small office workstation has 192.168.10.80/24 and a gateway incorrectly set to 192.168.11.1. Here the observed facts require soho wireless wpa security setup instead.
C:
Restore correct DHCP reachability rather than treating the APIPA address as a routable internet address. This 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 soho wireless wpa security setup instead.
D:
Choose the suitable provisioned fiber plan when bidirectional transfer capacity is the dominant requirement. This action is appropriate for fiber wan versus dsl last-mile capacity, normally when a remote design office regularly transfers multi-gigabyte files and can order either fiber or DSL. Here the observed facts require soho wireless wpa security setup instead.
Question 814
At Clearwater Telecom, a technician working in small-office network service desk identifies this issue: Two PCs on separate IPv4 subnets can communicate within their own LANs but not across subnets. The supporting record states that their access switches forward local Ethernet frames but no route connects the subnets. The desired outcome is to identify routing versus local Ethernet switching responsibilities. The technician must document observations separately from assumptions. Which inspection most directly confirms the likely cause before changing components?
- Sum device PoE classes and actual draw against port limits and switch total budget
- Confirm provider handoff, optical or coaxial medium and customer Ethernet demarcation
- Map connected endpoints, geography and link boundaries for each example
- Check subnet masks, default gateways and configured inter-subnet routes
Explanation
Correct Answer
D:
Check subnet masks, default gateways and configured inter-subnet routes. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that their access switches forward local Ethernet frames but no route connects the subnets. The support goal is to identify routing versus local Ethernet switching responsibilities; this diagnose action specifically addresses router versus layer 2 switch forwarding 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 router versus layer 2 switch forwarding instead.
B:
Confirm provider handoff, optical or coaxial medium and customer Ethernet demarcation. That action is appropriate for ont versus cable modem access equipment, normally when a customer receives a fiber-to-the-premises service but attempts to connect the optical fiber directly to a DOCSIS cable modem. Here the observed facts require router versus layer 2 switch forwarding instead.
C:
Map connected endpoints, geography and link boundaries for each example. This action is appropriate for pan versus lan versus wan scope, normally when a technician must classify a Bluetooth watch connection, office Ethernet and multi-site leased link. Here the observed facts require router versus layer 2 switch forwarding instead.
Question 815
At Fountain Transport, a technician working in laptop and mobile device repair identifies this issue: Staff use personally owned phones to read corporate mail but refuse full device enrollment. The supporting record states that the employer needs to protect work app data while leaving personal photos and apps outside corporate control. The desired outcome is to apply supported corporate application controls with appropriate privacy scope. The technician must document observations separately from assumptions. What should support monitor to catch a recurrence of the same failure?
- Monitor sync errors, account duplication and mobile data restrictions
- Track backup failures, replacement SSD health and encryption key escrow
- Monitor carrier provisioning failures and profiles unexpectedly disabled
- Review work-app policy compliance and data-leak exceptions, not personal browsing history
Explanation
Correct Answer
D:
Review work-app policy compliance and data-leak exceptions, not personal browsing history. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the employer needs to protect work app data while leaving personal photos and apps outside corporate control. The support goal is to apply supported corporate application controls with appropriate privacy scope; this monitor action specifically addresses byod mobile application management without confusing a different subsystem.
Incorrect Answers
A:
Monitor sync errors, account duplication and mobile data restrictions. That 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 byod mobile application management instead.
B:
Track backup failures, replacement SSD health and encryption key escrow. 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 byod mobile application management instead.
C:
Monitor carrier provisioning failures and profiles unexpectedly disabled. 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 byod mobile application management instead.
Question 816
On a service ticket for Acorn Foods, the team observes: An office adds a second VLAN but expects an unmanaged switch alone to connect both IP subnets. The desired outcome is to identify routing versus local Ethernet switching responsibilities. Any configuration change must be reversible and validated on a controlled test device. Which planned change most directly resolves the documented issue?
- Use the provider-approved ONT for fiber access and connect a router to its supported handoff
- Use a switch or injector capacity that satisfies the combined supported PoE draw
- Provide a suitable router or Layer 3 routing function with permitted inter-subnet paths
- Use NFC for intentional close-range taps and Bluetooth for separately paired personal peripherals
Explanation
Correct Answer
C:
Provide a suitable router or Layer 3 routing function with permitted inter-subnet paths. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that an office adds a second VLAN but expects an unmanaged switch alone to connect both IP subnets. The support goal is to identify routing versus local Ethernet switching responsibilities; this design action specifically addresses router versus layer 2 switch forwarding without confusing a different subsystem.
Incorrect Answers
A:
Use the provider-approved ONT for fiber access and connect a router to its supported handoff. That action is appropriate for ont versus cable modem access equipment, normally when a customer receives a fiber-to-the-premises service but attempts to connect the optical fiber directly to a DOCSIS cable modem. Here the observed facts require router versus layer 2 switch forwarding instead.
B:
Use a switch or injector capacity that satisfies the combined supported PoE draw. 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 router versus layer 2 switch forwarding instead.
D:
Use NFC for intentional close-range taps and Bluetooth for separately paired personal peripherals. This 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 router versus layer 2 switch forwarding instead.
Question 817
During Monarch Pharmacy's IT virtualization planning, the technician encounters this condition: An organization needs multiple production VMs on a dedicated virtualization host without a general-purpose desktop OS layer. The supporting record states that its proposed desktop hypervisor runs on top of a user workstation operating system. The desired outcome is to choose the hypervisor class appropriate for dedicated host operation. 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?
- Install a test bare-metal hypervisor on approved compatible lab server hardware
- Create a disposable VM and verify host and guest can run concurrently
- Start a harmless container on a lab host and inspect the shared kernel version
- Take a test snapshot then restore it while testing separate backup recovery
Explanation
Correct Answer
A:
Install a test bare-metal hypervisor on approved compatible lab server hardware. It tests the proposed solution safely on an approved representative system. The relevant observation is that its proposed desktop hypervisor runs on top of a user workstation operating system. The support goal is to choose the hypervisor class appropriate for dedicated host operation; this pilot action specifically addresses type 1 versus type 2 hypervisors without confusing a different subsystem.
Incorrect Answers
B:
Create a disposable VM and verify host and guest can run concurrently. That action is appropriate for hosted type 2 virtualization for testing, normally when a help desk engineer needs an isolated test operating system on an existing laptop. Here the observed facts require type 1 versus type 2 hypervisors instead.
C:
Start a harmless container on a lab host and inspect the shared kernel version. That 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 type 1 versus type 2 hypervisors instead.
D:
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 type 1 versus type 2 hypervisors instead.
Question 818
At Seabright Supplies, a technician working in computer equipment refresh identifies this issue: A design lab orders ECC RAM for a desktop that cannot activate memory error correction. The desired outcome is to select ECC hardware only where CPU and board support its error reporting. The goal is to restore required function without creating a new security or safety problem. Which safe pilot action gives the most relevant evidence?
- Set a test monitor first to its native resolution then to an available supported refresh rate
- Test an ECC-capable workstation using manufacturer diagnostics and supported event reporting
- Install a compatible test DIMM with power disconnected and ESD precautions
- Use a known-supported test module and confirm safe seating and POST
Explanation
Correct Answer
B:
Test an ECC-capable workstation using manufacturer diagnostics and supported event reporting. It tests the proposed solution safely on an approved representative system. The relevant observation is that a design lab orders ECC RAM for a desktop that cannot activate memory error correction. The support goal is to select ECC hardware only where CPU and board support its error reporting; this pilot action specifically addresses ecc memory error correction compatibility without confusing a different subsystem.
Incorrect Answers
A:
Set a test monitor first to its native resolution then to an available supported refresh rate. This 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 ecc memory error correction compatibility instead.
C:
Install a compatible test DIMM with power disconnected and ESD precautions. That 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 ecc memory error correction compatibility instead.
D:
Use a known-supported test module and confirm safe seating and POST. That action is appropriate for ddr generation electrical compatibility, normally when a replacement RAM order has the correct capacity but the wrong DDR generation. Here the observed facts require ecc memory error correction compatibility instead.
Question 819
At Aster Systems, a technician working in hardware and network incident triage identifies this issue: A monitor intermittently goes black when its display cable is moved. The supporting record states that the computer remains running and a spare certified video cable is available. The desired outcome is to determine whether a physical video link is causing intermittent display loss. The technician must document observations separately from assumptions. What should support monitor to catch a recurrence of the same failure?
- Monitor frequently changed input selections and broken AV cables
- Monitor driver mode changes and unexpected display scaling resets
- Monitor recurring connector issues and dock port strain
- Monitor brightness dropout and hinge-related display cable faults
Explanation
Correct Answer
C:
Monitor recurring connector issues and dock port strain. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the computer remains running and a spare certified video cable is available. The support goal is to determine whether a physical video link is causing intermittent display loss; this monitor action specifically addresses intermittent monitor image due to video cable without confusing a different subsystem.
Incorrect Answers
A:
Monitor frequently changed input selections and broken AV cables. 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 intermittent monitor image due to video cable instead.
B:
Monitor driver mode changes and unexpected display scaling resets. This action is appropriate for wrong screen resolution and scaling, normally when a user complains that desktop text is blurry after changing to a nonnative display resolution. Here the observed facts require intermittent monitor image due to video cable instead.
D:
Monitor brightness dropout and hinge-related display cable faults. That 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 intermittent monitor image due to video cable instead.
Question 820
On a service ticket for Vertex Media, the team observes: A team needs to package one web service and its dependencies but not another complete guest kernel. The supporting record states that its runtime supports containers sharing the host operating system kernel. The desired outcome is to identify containers versus full operating-system VMs for application packaging. The technician must document observations separately from assumptions. Which controlled service test best evaluates the planned approach?
- Take a test snapshot then restore it while testing separate backup recovery
- Create a disposable VM and verify host and guest can run concurrently
- Start a harmless container on a lab host and inspect the shared kernel version
- Open a test virtual desktop session from a thin client over a controlled network
Explanation
Correct Answer
C:
Start a harmless container on a lab host and inspect the shared kernel version. It tests the proposed solution safely on an approved representative system. The relevant observation is that its runtime supports containers sharing the host operating system kernel. The support goal is to identify containers versus full operating-system VMs for application packaging; this pilot action specifically addresses container isolation versus full virtual machine without confusing a different subsystem.
Incorrect Answers
A:
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 container isolation versus full virtual machine instead.
B:
Create a disposable VM and verify host and guest can run concurrently. That action is appropriate for hosted type 2 virtualization for testing, normally when a help desk engineer needs an isolated test operating system on an existing laptop. Here the observed facts require container isolation versus full virtual machine instead.
D:
Open a test virtual desktop session from a thin client over a controlled network. That 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 container isolation versus full virtual machine instead.
