CompTIA 220-1201 Practice Test 88
Question 870
A support request at Juniper Tech presents this problem: A small office sees wireless packet loss during lunch when nearby microwaves and overlapping APs are active. The desired outcome is to resolve radio interference before increasing wired internet capacity. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. What should the technician verify first to establish the problem?
- Check cable damage, connector strain, monitor input selection and GPU outputs
- Check resolver settings, DNS request responses and direct-IP reachability
- Inspect channel use, signal strength, client retries and non-Wi-Fi interference sources
- Inspect port access and voice VLAN settings, LLDP, assigned IP subnets and switch change log
Explanation
Correct Answer
C:
Inspect channel use, signal strength, client retries and non-Wi-Fi interference sources. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a small office sees wireless packet loss during lunch when nearby microwaves and overlapping APs are active. The support goal is to resolve radio interference before increasing wired internet capacity; this diagnose action specifically addresses intermittent wi-fi due to channel interference without confusing a different subsystem.
Incorrect Answers
A:
Check cable damage, connector strain, monitor input selection and GPU outputs. This action is appropriate for intermittent monitor image due to video cable, normally when a monitor intermittently goes black when its display cable is moved. Here the observed facts require intermittent wi-fi due to channel interference instead.
B:
Check resolver settings, DNS request responses and direct-IP reachability. This action is appropriate for dns failure with working ip connectivity, normally when a workstation opens a service directly by numeric IP but says its hostname cannot be resolved. Here the observed facts require intermittent wi-fi due to channel interference instead.
D:
Inspect port access and voice VLAN settings, LLDP, assigned IP subnets and switch change log. This 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 intermittent wi-fi due to channel interference instead.
Question 871
During Keystone Health's computer equipment refresh, the technician encounters this condition: A desktop shuts off during rendering after a heatsink replacement without thermal paste. The desired outcome is to restore reliable heat transfer from the processor to its cooling assembly. The customer requires a verified fix rather than a guess based on one symptom. Which planned change most directly resolves the documented issue?
- Enable approved Secure Boot controls without assuming boot order provides signature checking
- Select a listed compatible processor and cooling solution for the board
- Install the cooler with appropriate pressure and thermal interface material
- Select a qualified DDR4 module of a supported configuration rather than DDR5
Explanation
Correct Answer
C:
Install the cooler with appropriate pressure and thermal interface material. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a desktop shuts off during rendering after a heatsink replacement without thermal paste. The support goal is to restore reliable heat transfer from the processor to its cooling assembly; this design action specifically addresses cpu heatsink thermal interface without confusing a different subsystem.
Incorrect Answers
A:
Enable approved Secure Boot controls without assuming boot order provides signature checking. That action is appropriate for uefi secure boot versus boot order, normally when a laptop can start a trusted OS but prompts when an unsigned bootloader is inserted. Here the observed facts require cpu heatsink thermal interface instead.
B:
Select a listed compatible processor and cooling solution for the board. That 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 cpu heatsink thermal interface instead.
D:
Select a qualified DDR4 module of a supported configuration rather than DDR5. This 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 cpu heatsink thermal interface instead.
Question 872
On a service ticket for Lakeside Analytics, the team observes: A database server needs fast disk I/O and redundancy with four equal drives. The supporting record states that the platform supports RAID 10 but not arbitrary two-disk RAID 10 layouts. The desired outcome is to select combined striping and mirroring with the correct minimum disk count. Only approved service procedures and compatible replacement components may be used. What should be tracked after the fix to maintain service reliability?
- Monitor drive grouping and failed member replacement
- Monitor new panel substitutions and reported off-axis color changes
- Monitor patrol reads, failed drives and rebuild exposure
- Monitor mirror health and successful independent backups
Explanation
Correct Answer
A:
Monitor drive grouping and failed member replacement. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the platform supports RAID 10 but not arbitrary two-disk RAID 10 layouts. The support goal is to select combined striping and mirroring with the correct minimum disk count; this monitor action specifically addresses raid 10 mirrored striped array without confusing a different subsystem.
Incorrect Answers
B:
Monitor new panel substitutions and reported off-axis color changes. This action is appropriate for ips versus tn versus oled displays, normally when a graphic designer prioritizes consistent viewing angles and color accuracy over lowest display price. Here the observed facts require raid 10 mirrored striped array instead.
C:
Monitor patrol reads, failed drives and rebuild exposure. That action is appropriate for raid 5 versus raid 6 dual parity, normally when a four-disk production array must remain available during any two simultaneous drive failures. Here the observed facts require raid 10 mirrored striped array instead.
D:
Monitor mirror health and successful independent backups. That action is appropriate for raid 1 mirror capacity and resilience, normally when a file server has two equal 2 TB disks and needs redundancy against one disk failure. Here the observed facts require raid 10 mirrored striped array instead.
Question 873
On a service ticket for Stonebridge Research, the team observes: A network printer puts letter-size forms on the wrong paper and uses one-sided output. The supporting record states that the client needs duplex printing from a specific tray and has a compatible vendor driver. The desired outcome is to correct printer job configuration rather than replacing hardware. The technician must document observations separately from assumptions. How should the solution first be tested on an approved spare or pilot system?
- Print a test page after inserting a compatible toner cartridge in a powered-down service state
- Print a nozzle-check test after one controlled cleaning cycle
- Print a controlled two-page sample from the target application
- Send a harmless test document and approach the printer without and then with the approved badge
Explanation
Correct Answer
C:
Print a controlled two-page sample from the target application. It tests the proposed solution safely on an approved representative system. The relevant observation is that the client needs duplex printing from a specific tray and has a compatible vendor driver. The support goal is to correct printer job configuration rather than replacing hardware; this pilot action specifically addresses printer duplex and tray settings without confusing a different subsystem.
Incorrect Answers
A:
Print a test page after inserting a compatible toner cartridge in a powered-down service state. 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 printer duplex and tray settings instead.
B:
Print a nozzle-check test after one controlled cleaning cycle. This 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 printer duplex and tray settings instead.
D:
Send a harmless test document and approach the printer without and then with the approved badge. That 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 printer duplex and tray settings instead.
Question 874
During Orchard Services's branch networking support, the technician encounters this condition: A workstation moved to a different VLAN broadcasts for DHCP but cannot reach its assigned scope. The desired outcome is to identify DHCP IPv4 client and server UDP ports and scope reachability. A safe non-destructive test must be used before replacing additional parts. What should be tracked after the fix to maintain service reliability?
- Monitor backend health, distribution and excessive failover events
- Monitor lease pool depletion and DHCP relay failures
- Monitor DNS truncation, TCP retries and firewall denial logs
- Monitor SMB connection failures and excessive port 445 exposure
Explanation
Correct Answer
B:
Monitor lease pool depletion and DHCP relay failures. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a workstation moved to a different VLAN broadcasts for DHCP but cannot reach its assigned scope. The support goal is to identify DHCP IPv4 client and server UDP ports and scope reachability; this monitor action specifically addresses dhcp client and server port roles without confusing a different subsystem.
Incorrect Answers
A:
Monitor backend health, distribution and excessive failover events. This action is appropriate for load balancer versus proxy server functions, normally when a web service needs requests distributed across three application servers with failed nodes removed automatically. Here the observed facts require dhcp client and server port roles instead.
C:
Monitor DNS truncation, TCP retries and firewall denial logs. 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 dhcp client and server port roles instead.
D:
Monitor SMB connection failures and excessive port 445 exposure. That action is appropriate for smb file sharing port versus rdp, normally when a user can ping a shared Windows file server but cannot map a network share. Here the observed facts require dhcp client and server port roles instead.
Question 875
At Westbrook Energy, a technician working in end-user troubleshooting identifies this issue: A two-disk mirror still serves files but its management page shows a failed member and no redundancy. The desired outcome is to restore RAID redundancy without wiping the surviving volume. User data and business service continuity must be preserved. Which planned change most directly resolves the documented issue?
- Load the correct thermal stock in the required orientation and clean the printhead as supported
- Move the verified OS boot entry ahead of the empty disk in firmware
- Replace the confirmed failed member and rebuild using the controller's documented procedure
- Move the NVMe drive to a supported PCIe-capable slot or use the correct SATA M.2 model
Explanation
Correct Answer
C:
Replace the confirmed failed member and rebuild using the controller's documented procedure. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a two-disk mirror still serves files but its management page shows a failed member and no redundancy. The support goal is to restore RAID redundancy without wiping the surviving volume; this design action specifically addresses degraded raid after a failed member without confusing a different subsystem.
Incorrect Answers
A:
Load the correct thermal stock in the required orientation and clean the printhead as supported. This 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 degraded raid after a failed member instead.
B:
Move the verified OS boot entry ahead of the empty disk in firmware. That 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 degraded raid after a failed member instead.
D:
Move the NVMe drive to a supported PCIe-capable slot or use the correct SATA M.2 model. That action is appropriate for nvme ssd not detected after installation, normally when a new NVMe SSD is absent from firmware and the storage installer. Here the observed facts require degraded raid after a failed member instead.
Question 876
At Lakeside Analytics, a technician working in desktop hardware service bench identifies this issue: A database server needs fast disk I/O and redundancy with four equal drives. The supporting record states that the platform supports RAID 10 but not arbitrary two-disk RAID 10 layouts. The desired outcome is to select combined striping and mirroring with the correct minimum disk count. Only approved service procedures and compatible replacement components may be used. Which controlled service test best evaluates the planned approach?
- Create a small lab array of two mirrored pairs striped together
- View the same color test pattern from several angles on IPS and TN panels
- Simulate a single disk failure in an isolated RAID 1 test array
- Model two drive failures on a disposable RAID 6 lab array
Explanation
Correct Answer
A:
Create a small lab array of two mirrored pairs striped together. It tests the proposed solution safely on an approved representative system. The relevant observation is that the platform supports RAID 10 but not arbitrary two-disk RAID 10 layouts. The support goal is to select combined striping and mirroring with the correct minimum disk count; this pilot action specifically addresses raid 10 mirrored striped array without confusing a different subsystem.
Incorrect Answers
B:
View the same color test pattern from several angles on IPS and TN panels. This action is appropriate for ips versus tn versus oled displays, normally when a graphic designer prioritizes consistent viewing angles and color accuracy over lowest display price. Here the observed facts require raid 10 mirrored striped array instead.
C:
Simulate a single disk failure in an isolated RAID 1 test array. That action is appropriate for raid 1 mirror capacity and resilience, normally when a file server has two equal 2 TB disks and needs redundancy against one disk failure. Here the observed facts require raid 10 mirrored striped array instead.
D:
Model two drive failures on a disposable RAID 6 lab array. That action is appropriate for raid 5 versus raid 6 dual parity, normally when a four-disk production array must remain available during any two simultaneous drive failures. Here the observed facts require raid 10 mirrored striped array instead.
Question 877
At Vertex Media, a technician working in end-user troubleshooting identifies this issue: A user hears repeated seek noises and sees a disk utility warning about pending bad sectors. The desired outcome is to treat failing disk health as a data protection issue before performance tuning. The customer requires a verified fix rather than a guess based on one symptom. What should be tracked after the fix to maintain service reliability?
- Monitor rebuild progress and additional SMART failures
- Monitor link reset and CRC error trends after repairs
- Monitor SMART warnings and backup success across endpoints
- Monitor BIOS lane-sharing changes and unsupported replacement drive orders
Explanation
Correct Answer
C:
Monitor SMART warnings and backup success across endpoints. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a user hears repeated seek noises and sees a disk utility warning about pending bad sectors. The support goal is to treat failing disk health as a data protection issue before performance tuning; this monitor action specifically addresses s.m.a.r.t. warning and imminent drive failure without confusing a different subsystem.
Incorrect Answers
A:
Monitor rebuild progress and additional SMART failures. That action is appropriate for degraded raid after a failed member, normally when a mirrored NAS reports one disk failed while files remain available. Here the observed facts require s.m.a.r.t. warning and imminent drive failure instead.
B:
Monitor link reset and CRC error trends after repairs. That 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 s.m.a.r.t. warning and imminent drive failure instead.
D:
Monitor BIOS lane-sharing changes and unsupported replacement drive orders. This action is appropriate for nvme ssd not detected after installation, normally when a new NVMe SSD is absent from firmware and the storage installer. Here the observed facts require s.m.a.r.t. warning and imminent drive failure instead.
Question 878
At Evergreen Manufacturing, a technician working in IT virtualization planning identifies this issue: An organization uses a SaaS platform shared with several customer organizations. The supporting record states that the provider logically isolates tenant data but may share underlying physical compute. The desired outcome is to distinguish logical tenant isolation from guaranteed dedicated physical hardware. A safe non-destructive test must be used before replacing additional parts. Which acceptance result best demonstrates the issue is resolved?
- Verify instances increase under load and decrease after demand subsides
- Verify the stated legacy service stays private while the public component communicates only over approved paths
- Verify one tenant cannot view the other's data without assuming the physical servers are dedicated
- Verify guest machines start without depending on an interactive desktop host OS
Explanation
Correct Answer
C:
Verify one tenant cannot view the other's data without assuming the physical servers are dedicated. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that the provider logically isolates tenant data but may share underlying physical compute. The support goal is to distinguish logical tenant isolation from guaranteed dedicated physical hardware; this validate action specifically addresses multitenancy versus dedicated cloud resources without confusing a different subsystem.
Incorrect Answers
A:
Verify instances increase under load and decrease after demand subsides. That action is appropriate for cloud elasticity versus fixed provisioning, normally when an online storefront sees traffic triple for two hours and then fall back to normal. Here the observed facts require multitenancy versus dedicated cloud resources instead.
B:
Verify the stated legacy service stays private while the public component communicates only over approved paths. That action is appropriate for public versus private versus hybrid cloud, normally when an enterprise must keep one legacy regulatory workload in its own datacenter while scaling an unrelated web front end in a public provider. Here the observed facts require multitenancy versus dedicated cloud resources instead.
D:
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 multitenancy versus dedicated cloud resources instead.
Question 879
At Seabright Supplies, a technician working in IT virtualization planning identifies this issue: A help desk engineer needs an isolated test operating system on an existing laptop. The supporting record states that the laptop must continue running its normal desktop OS and does not need dedicated bare-metal hosting. The desired outcome is to choose a hosted virtualization approach suitable for local test development. 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?
- Inspect desktop hosting, identity, storage and endpoint access requirements
- Inspect CPU capabilities, firmware virtualization toggle and hypervisor error logs
- Identify whether the hypervisor runs directly on hardware or above a host desktop OS
- Check host OS, available RAM, processor virtualization and supported desktop hypervisor
Explanation
Correct Answer
D:
Check host OS, available RAM, processor virtualization and supported desktop hypervisor. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the laptop must continue running its normal desktop OS and does not need dedicated bare-metal hosting. The support goal is to choose a hosted virtualization approach suitable for local test development; this diagnose action specifically addresses hosted type 2 virtualization for testing without confusing a different subsystem.
Incorrect Answers
A:
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 hosted type 2 virtualization for testing instead.
B:
Inspect CPU capabilities, firmware virtualization toggle and hypervisor error logs. This action is appropriate for virtualization cpu extensions, normally when a new virtual machine cannot start a 64-bit guest even though the host processor supports virtualization. Here the observed facts require hosted type 2 virtualization for testing instead.
C:
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 hosted type 2 virtualization for testing instead.
Question 880
A support request at Fountain Transport presents this problem: 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. Which verification result supports the intended technical outcome?
- Confirm user files and boot integrity are restored and encryption reports protected state
- Confirm controlled copy or save actions are restricted while private personal content remains unaffected
- Verify mobile data works with Wi-Fi off and voice features meet plan support
- Verify the appointment and a test contact appear consistently on both devices
Explanation
Correct Answer
B:
Confirm controlled copy or save actions are restricted while private personal content remains unaffected. It proves the required function with an observable result instead of assuming the change worked. 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 validate action specifically addresses byod mobile application management without confusing a different subsystem.
Incorrect Answers
A:
Confirm user files and boot integrity are restored and encryption reports protected state. This action is appropriate for laptop ssd replacement and encryption, normally when a laptop SSD is failing SMART health checks and holds company data protected with full-disk encryption. Here the observed facts require byod mobile application management instead.
C:
Verify mobile data works with Wi-Fi off and voice features meet plan support. 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.
D:
Verify the appointment and a test contact appear consistently on both devices. 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.
