CompTIA 220-1201 Practice Test 74
Question 730
At Riverlight Retail, a technician working in hardware and network incident triage identifies this issue: A conference room projector displays a no-signal message while the laptop works locally. The supporting record states that the laptop is attached by HDMI but the projector input menu is set to a different port. The desired outcome is to resolve a display source-selection issue without reinstalling graphics drivers. The goal is to restore required function without creating a new security or safety problem. Which controlled service test best evaluates the planned approach?
- Restore a test file set to a replacement disk in an isolated recovery workflow
- Swap only the display cable on a known-good test monitor
- Use a safe test presentation and cycle between known connected projector inputs
- Test a compatible known-good panel with safe power isolation
Explanation
Correct Answer
C:
Use a safe test presentation and cycle between known connected projector inputs. It tests the proposed solution safely on an approved representative system. The relevant observation is that the laptop is attached by HDMI but the projector input menu is set to a different port. The support goal is to resolve a display source-selection issue without reinstalling graphics drivers; this pilot action specifically addresses projector wrong input versus computer failure without confusing a different subsystem.
Incorrect Answers
A:
Restore a test file set to a replacement disk in an isolated recovery workflow. This action is appropriate for s.m.a.r.t. warning and imminent drive failure, normally when a desktop disk reports increasing reallocated sectors and read retries. Here the observed facts require projector wrong input versus computer failure instead.
B:
Swap only the display cable on a known-good test monitor. 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 projector wrong input versus computer failure instead.
D:
Test a compatible known-good panel with safe power isolation. This action is appropriate for backlight failure on laptop lcd, normally when a laptop screen looks black but a flashlight reveals a faint intact desktop image. Here the observed facts require projector wrong input versus computer failure instead.
Question 731
At Cedar Education, a technician working in end-user troubleshooting identifies this issue: 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. Which configuration or repair action best addresses the stated requirement?
- Replace the failed cooling fan and correct airflow or thermal interface as indicated
- Replace the supported toner/drum unit or imaging drum as designed
- Perform approved nozzle cleaning and replace a failed cartridge or head only if indicated
- Clean or replace the approved pickup roller or separation pad assembly
Explanation
Correct Answer
B:
Replace the supported toner/drum unit or imaging drum as designed. It corrects the documented cause using the compatible technology and support constraints. 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 design action specifically addresses laser repeated streaks from drum defect without confusing a different subsystem.
Incorrect Answers
A:
Replace the failed cooling fan and correct airflow or thermal interface as indicated. 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.
C:
Perform approved nozzle cleaning and replace a failed cartridge or head only if indicated. 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 laser repeated streaks from drum defect instead.
D:
Clean or replace the approved pickup roller or separation pad assembly. 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 laser repeated streaks from drum defect instead.
Question 732
On a service ticket for Westbrook Energy, the team observes: An office PC can reach a website by IP but not by its DNS hostname after a resolver migration. The desired outcome is to separate name resolution failures from IP address provisioning. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. What observation would verify successful service restoration?
- Verify hostname access returns while the assigned IP lease remains unchanged
- Verify independent device logs use consistent event times after synchronization
- Verify internet access and signal status follow the approved provider equipment path
- Verify healthy nodes continue serving requests and unhealthy nodes leave rotation
Explanation
Correct Answer
A:
Verify hostname access returns while the assigned IP lease remains unchanged. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that an office PC can reach a website by IP but not by its DNS hostname after a resolver migration. The support goal is to separate name resolution failures from IP address provisioning; this validate action specifically addresses dns resolution versus dhcp address assignment without confusing a different subsystem.
Incorrect Answers
B:
Verify independent device logs use consistent event times after synchronization. That 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 dns resolution versus dhcp address assignment instead.
C:
Verify internet access and signal status follow the approved provider equipment path. This 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 dns resolution versus dhcp address assignment instead.
D:
Verify healthy nodes continue serving requests and unhealthy nodes leave rotation. 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 dns resolution versus dhcp address assignment instead.
Question 733
At Clearwater Telecom, a technician working in end-user troubleshooting identifies this issue: A desktop color inkjet skips alternating bands after sitting unused for months. The desired outcome is to correct an ink delivery issue rather than changing duplex settings. The technician must document observations separately from assumptions. Which post-repair signal best detects regression or repeat exposure?
- Monitor infrequent printing and repeated nozzle blockages
- Monitor link reset and CRC error trends after repairs
- Monitor incompatible label rolls and printhead wear
- Monitor recurring drum damage and contaminant buildup
Explanation
Correct Answer
A:
Monitor infrequent printing and repeated nozzle blockages. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a desktop color inkjet skips alternating bands after sitting unused for months. The support goal is to correct an ink delivery issue rather than changing duplex settings; this monitor action specifically addresses inkjet horizontal banding and nozzle obstruction without confusing a different subsystem.
Incorrect Answers
B:
Monitor link reset and CRC error trends after repairs. This action is appropriate for intermittent sata cable data fault, normally when a SATA HDD disappears occasionally despite healthy spin-up and no clear media errors. Here the observed facts require inkjet horizontal banding and nozzle obstruction instead.
C:
Monitor incompatible label rolls and printhead wear. That action is appropriate for thermal printer paper orientation, normally when a shipping label printer feeds paper but produces completely blank labels. Here the observed facts require inkjet horizontal banding and nozzle obstruction instead.
D:
Monitor recurring drum damage and contaminant buildup. That action is appropriate for laser repeated streaks from drum defect, normally when printed laser pages have a dark stripe repeated at the same distance down each sheet. Here the observed facts require inkjet horizontal banding and nozzle obstruction instead.
Question 734
A support request at Bluefin Logistics presents this problem: A datacenter team wants direct server virtualization instead of a developer's hosted VM application. The desired outcome is to choose the hypervisor class appropriate for dedicated host operation. The customer requires a verified fix rather than a guess based on one symptom. Which acceptance result best demonstrates the issue is resolved?
- Verify guest machines start without depending on an interactive desktop host OS
- 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
- Confirm the VM can be isolated and removed without reinstalling the laptop host
Explanation
Correct Answer
A:
Verify guest machines start without depending on an interactive desktop host OS. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a datacenter team wants direct server virtualization instead of a developer's hosted VM application. The support goal is to choose the hypervisor class appropriate for dedicated host operation; this validate action specifically addresses type 1 versus type 2 hypervisors without confusing a different subsystem.
Incorrect Answers
B:
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 type 1 versus type 2 hypervisors instead.
C:
Verify the application runs in its container while kernel version comes from the host. 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:
Confirm the VM can be isolated and removed without reinstalling the laptop host. 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.
Question 735
On a service ticket for Horizon College, the team observes: An office activates 6 GHz on its AP but a 2019 notebook cannot see that SSID. The desired outcome is to explain why band and client capabilities must agree before joining 6 GHz Wi-Fi. Any configuration change must be reversible and validated on a controlled test device. Which configuration or repair action best addresses the stated requirement?
- Provide compatible 2.4 or 5 GHz access for older clients and use 6 GHz only for capable devices
- Use NFC for intentional close-range taps and Bluetooth for separately paired personal peripherals
- Configure an approved reachable NTP source for network devices while retaining centralized syslog
- Use the band and channel plan that balances coverage with capacity, favoring clear 5 GHz channels for dense nearby clients
Explanation
Correct Answer
A:
Provide compatible 2.4 or 5 GHz access for older clients and use 6 GHz only for capable devices. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that an office activates 6 GHz on its AP but a 2019 notebook cannot see that SSID. The support goal is to explain why band and client capabilities must agree before joining 6 GHz Wi-Fi; this design action specifically addresses 6 ghz wi-fi client compatibility without confusing a different subsystem.
Incorrect Answers
B:
Use NFC for intentional close-range taps and Bluetooth for separately paired personal peripherals. 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 6 ghz wi-fi client compatibility instead.
C:
Configure an approved reachable NTP source for network devices while retaining centralized syslog. 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 6 ghz wi-fi client compatibility instead.
D:
Use the band and channel plan that balances coverage with capacity, favoring clear 5 GHz channels for dense nearby clients. That action is appropriate for 2.4 ghz versus 5 ghz wi-fi trade-offs, normally when a warehouse needs coverage through walls at modest data rates while a crowded office needs faster nearby links. Here the observed facts require 6 ghz wi-fi client compatibility instead.
Question 736
A support request at Clearwater Telecom presents this problem: A desktop color inkjet skips alternating bands after sitting unused for months. The desired outcome is to correct an ink delivery issue rather than changing duplex settings. The technician must document observations separately from assumptions. Which acceptance result best demonstrates the issue is resolved?
- Verify dark print appears on the active coated side without consumable ink
- Verify cyan lines are continuous and color image banding is reduced
- Verify interface CRC errors stop increasing and drive detection is consistent
- Verify repeated marks are gone across consecutive pages
Explanation
Correct Answer
B:
Verify cyan lines are continuous and color image banding is reduced. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a desktop color inkjet skips alternating bands after sitting unused for months. The support goal is to correct an ink delivery issue rather than changing duplex settings; this validate action specifically addresses inkjet horizontal banding and nozzle obstruction without confusing a different subsystem.
Incorrect Answers
A:
Verify dark print appears on the active coated side without consumable ink. That action is appropriate for thermal printer paper orientation, normally when a shipping label printer feeds paper but produces completely blank labels. Here the observed facts require inkjet horizontal banding and nozzle obstruction instead.
C:
Verify interface CRC errors stop increasing and drive detection is consistent. This action is appropriate for intermittent sata cable data fault, normally when a SATA HDD disappears occasionally despite healthy spin-up and no clear media errors. Here the observed facts require inkjet horizontal banding and nozzle obstruction instead.
D:
Verify repeated marks are gone across consecutive pages. That action is appropriate for laser repeated streaks from drum defect, normally when printed laser pages have a dark stripe repeated at the same distance down each sheet. Here the observed facts require inkjet horizontal banding and nozzle obstruction instead.
Question 737
During Aster Systems's small-office network service desk, the technician encounters this condition: A web service needs requests distributed across three application servers with failed nodes removed automatically. The supporting record states that the existing forward proxy serves outbound employee browsing and does not balance inbound app requests. The desired outcome is to choose the appropriate network service for distributing application traffic. The customer requires a verified fix rather than a guess based on one symptom. Which configuration or repair action best addresses the stated requirement?
- Configure an approved reachable NTP source for network devices while retaining centralized syslog
- Deploy an appropriate load balancer with health probes for the supported service
- Repair the DNS server or client DNS setting rather than rebuilding the DHCP address pool
- Label short-range personal devices PAN, building networking LAN and multi-site WAN appropriately
Explanation
Correct Answer
B:
Deploy an appropriate load balancer with health probes for the supported service. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that the existing forward proxy serves outbound employee browsing and does not balance inbound app requests. The support goal is to choose the appropriate network service for distributing application traffic; this design action specifically addresses load balancer versus proxy server functions without confusing a different subsystem.
Incorrect Answers
A:
Configure an approved reachable NTP source for network devices while retaining centralized syslog. That 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 load balancer versus proxy server functions instead.
C:
Repair the DNS server or client DNS setting rather than rebuilding the DHCP address pool. 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 load balancer versus proxy server functions instead.
D:
Label short-range personal devices PAN, building networking LAN and multi-site WAN appropriately. 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 load balancer versus proxy server functions instead.
Question 738
On a service ticket for Clearwater Telecom, the team observes: 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 safe pilot action gives the most relevant evidence?
- Test a lab Ethernet connection after a provisioned ONT, without altering optical connectors
- Sketch a hypothetical watch-to-phone, office switch, and remote-site circuit topology
- Test ping between subnets through an approved router after confirming local switching
- Connect representative powered devices to a lab switch and monitor total power budget
Explanation
Correct Answer
C:
Test ping between subnets through an approved router after confirming local switching. It tests the proposed solution safely on an approved representative system. 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 pilot action specifically addresses router versus layer 2 switch forwarding without confusing a different subsystem.
Incorrect Answers
A:
Test a lab Ethernet connection after a provisioned ONT, without altering optical connectors. 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:
Sketch a hypothetical watch-to-phone, office switch, and remote-site circuit topology. 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.
D:
Connect representative powered devices to a lab switch and monitor total power 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.
Question 739
On a service ticket for Stonebridge Research, the team observes: A desk patch cord shows different pinouts on opposite ends and the intended installation is not a crossover cable. The desired outcome is to apply consistent Ethernet copper pair termination standards. Only approved service procedures and compatible replacement components may be used. What should support monitor to catch a recurrence of the same failure?
- Monitor new drive purchases for overlooked slot protocol differences
- Monitor driver updates that reset mode selection
- Monitor optical attenuation and connector contamination
- Watch technician rework rates and damaged connector latches
Explanation
Correct Answer
D:
Watch technician rework rates and damaged connector latches. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a desk patch cord shows different pinouts on opposite ends and the intended installation is not a crossover cable. The support goal is to apply consistent Ethernet copper pair termination standards; this monitor action specifically addresses t568a versus t568b rj45 terminations without confusing a different subsystem.
Incorrect Answers
A:
Monitor new drive purchases for overlooked slot protocol differences. That 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 t568a versus t568b rj45 terminations instead.
B:
Monitor driver updates that reset mode selection. 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 t568a versus t568b rj45 terminations instead.
C:
Monitor optical attenuation and connector contamination. That 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 t568a versus t568b rj45 terminations instead.
Question 740
On a service ticket for Northland Labs, the team observes: 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 diagnostic check best distinguishes the relevant fault?
- Identify whether the hypervisor runs directly on hardware or above a host desktop OS
- Inspect snapshot location, retention and independent backup copies
- Compare kernel sharing, image contents and isolation requirements
- Inspect desktop hosting, identity, storage and endpoint access requirements
Explanation
Correct Answer
B:
Inspect snapshot location, retention and independent backup copies. It checks the likely failure boundary before altering working parts or settings. 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 diagnose action specifically addresses vm snapshot versus independent backup without confusing a different subsystem.
Incorrect Answers
A:
Identify whether the hypervisor runs directly on hardware or above a host desktop 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.
C:
Compare kernel sharing, image contents and isolation requirements. 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.
D:
Inspect desktop hosting, identity, storage and endpoint access requirements. 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.
