CompTIA 220-1201 Practice Test 99
Question 980
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 the technician verify first to establish the problem?
- Inspect application health checks, backend pool membership and where client requests enter
- 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
- Review the blocked query sizes, truncated-response flag and firewall rules for UDP and TCP 53
Explanation
Correct Answer
C:
Inspect UDP 68 client requests, UDP 67 server responses and relay configuration across the VLAN. It checks the likely failure boundary before altering working parts or settings. 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 diagnose action specifically addresses dhcp client and server port roles without confusing a different subsystem.
Incorrect Answers
A:
Inspect application health checks, backend pool membership and where client requests enter. 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.
B:
Compare effective TCP 445 connectivity, SMB service state and share authorization. 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.
D:
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 dhcp client and server port roles instead.
Question 981
On a service ticket for Beacon Group, the team observes: An artist can tap with a passive stylus but cannot use pressure-sensitive annotation on a tablet. The desired outcome is to select the accessory matching digitizer features rather than the touch surface alone. User data and business service continuity must be preserved. What observation would verify successful service restoration?
- Confirm controlled copy or save actions are restricted while private personal content remains unaffected
- Confirm the display works only through a documented compatible video path
- Verify pressure levels vary correctly and resting the hand does not draw unintended strokes
- Verify both displays run at specified resolutions and the battery gains charge under expected load
Explanation
Correct Answer
C:
Verify pressure levels vary correctly and resting the hand does not draw unintended strokes. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that an artist can tap with a passive stylus but cannot use pressure-sensitive annotation on a tablet. The support goal is to select the accessory matching digitizer features rather than the touch surface alone; this validate action specifically addresses active stylus digitizer compatibility without confusing a different subsystem.
Incorrect Answers
A:
Confirm controlled copy or save actions are restricted while private personal content remains unaffected. This action is appropriate for byod mobile application management, normally when staff use personally owned phones to read corporate mail but refuse full device enrollment. Here the observed facts require active stylus digitizer compatibility instead.
B:
Confirm the display works only through a documented compatible video path. 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 active stylus digitizer compatibility instead.
D:
Verify both displays run at specified resolutions and the battery gains charge under expected load. That action is appropriate for docking station display and power capability, normally when a small-business employee connects two monitors and power to a laptop through a new USB-C dock. Here the observed facts require active stylus digitizer compatibility instead.
Question 982
A support request at Vertex Media presents this problem: Printed laser pages have a dark stripe repeated at the same distance down each sheet. The supporting record states that the cartridge is full but the imaging drum surface shows visible defects. The desired outcome is to identify imaging drum defects instead of wasting printer network troubleshooting time. Only approved service procedures and compatible replacement components may be used. Which planned change most directly resolves the documented issue?
- Perform approved nozzle cleaning and replace a failed cartridge or head only if indicated
- Update the configured printer port or restore its DHCP reservation as appropriate
- Clean or replace the approved pickup roller or separation pad assembly
- Replace the supported toner/drum unit or imaging drum as designed
Explanation
Correct Answer
D:
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 the cartridge is full but the imaging drum surface shows visible defects. 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:
Perform approved nozzle cleaning and replace a failed cartridge or head only if indicated. 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.
B:
Update the configured printer port or restore its DHCP reservation as appropriate. This action is appropriate for printer offline queue despite network availability, normally when a shared printer is reachable on the network but user jobs accumulate in an offline queue. Here the observed facts require laser repeated streaks from drum defect instead.
C:
Clean or replace the approved pickup roller or separation pad assembly. 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.
Question 983
A support request at Pioneer Markets presents this problem: A clinic has a lobby wireless network and teleworkers, requiring isolation plus encrypted access. The desired outcome is to separate local network segmentation requirements from remote encrypted connectivity. The technician must document observations separately from assumptions. Which acceptance result best demonstrates the issue is resolved?
- Verify incoming mail resolves to the right mail exchanger and SPF evaluates approved senders
- Verify guest traffic cannot reach payroll while VPN users reach their approved internal resources
- Verify healthy nodes continue serving requests and unhealthy nodes leave rotation
- Confirm the same address returns on renewal and is not leased to another client
Explanation
Correct Answer
B:
Verify guest traffic cannot reach payroll while VPN users reach their approved internal resources. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a clinic has a lobby wireless network and teleworkers, requiring isolation plus encrypted access. The support goal is to separate local network segmentation requirements from remote encrypted connectivity; this validate action specifically addresses vlan segmentation versus vpn encrypted tunneling without confusing a different subsystem.
Incorrect Answers
A:
Verify incoming mail resolves to the right mail exchanger and SPF evaluates approved senders. 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 vlan segmentation versus vpn encrypted tunneling instead.
C:
Verify healthy nodes continue serving requests and unhealthy nodes leave rotation. This action is appropriate for load balancer versus proxy server functions, normally when a web service needs requests distributed across three application servers with failed nodes removed automatically. Here the observed facts require vlan segmentation versus vpn encrypted tunneling instead.
D:
Confirm the same address returns on renewal and is not leased to another client. That action is appropriate for dhcp reservation versus exclusion, normally when a networked printer must keep the same IPv4 address while the rest of the office remains DHCP-managed. Here the observed facts require vlan segmentation versus vpn encrypted tunneling instead.
Question 984
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. Which diagnostic check best distinguishes the relevant fault?
- Compare signed-in identity, calendar data source, sync permissions and last successful sync
- Inspect supported app management features, existing policy assignment and ownership model
- Check backup success, recovery-key availability, drive connector and manufacturer form-factor compatibility
- Inspect eSIM profiles, carrier activation state, service plan and cellular data toggle
Explanation
Correct Answer
B:
Inspect supported app management features, existing policy assignment and ownership model. It checks the likely failure boundary before altering working parts or settings. 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 diagnose action specifically addresses byod mobile application management without confusing a different subsystem.
Incorrect Answers
A:
Compare signed-in identity, calendar data source, sync permissions and last successful sync. 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.
C:
Check backup success, recovery-key availability, drive connector and manufacturer form-factor compatibility. 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.
D:
Inspect eSIM profiles, carrier activation state, service plan and cellular data toggle. 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 985
At Stonebridge Research, a technician working in end-user troubleshooting identifies this issue: A point-of-sale thermal receipt device outputs blank receipts after an employee reverses the paper roll. The desired outcome is to diagnose thermal paper orientation rather than ink or toner depletion. The goal is to restore required function without creating a new security or safety problem. How should the solution first be tested on an approved spare or pilot system?
- Feed a short set of labeled test media in the proper orientation
- Test several sheets from tray 1 after a supported roller service
- Run one controlled cleaning cycle and print a nozzle verification pattern
- Repeat a controlled combined load on a test system with a known-good supply
Explanation
Correct Answer
A:
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 a point-of-sale thermal receipt device outputs blank receipts after an employee reverses the paper roll. 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
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 thermal printer paper orientation instead.
C:
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 thermal printer paper orientation instead.
D:
Repeat a controlled combined load on a test system with a known-good supply. This action is appropriate for psu instability under peak component load, normally when a machine passes idle checks but reboots when the GPU and CPU draw peak power together. Here the observed facts require thermal printer paper orientation instead.
Question 986
A support request at Clearwater Telecom presents this problem: A gaming user buys a high-resolution screen but is disappointed that the interface still runs at 60 Hz. The desired outcome is to differentiate image pixel count from screen updates per second. The customer requires a verified fix rather than a guess based on one symptom. Which acceptance result best demonstrates the issue is resolved?
- Verify both resolution and refresh rate match the intended values in display settings
- Verify visible color variation meets the user's acceptance range with both displays calibrated
- Verify touch points align across the affected area while brightness remains normal
- Verify signed media boot and unsigned test boot is rejected by policy
Explanation
Correct Answer
A:
Verify both resolution and refresh rate match the intended values in display settings. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a gaming user buys a high-resolution screen but is disappointed that the interface still runs at 60 Hz. The support goal is to differentiate image pixel count from screen updates per second; this validate action specifically addresses refresh rate versus screen resolution without confusing a different subsystem.
Incorrect Answers
B:
Verify visible color variation meets the user's acceptance range with both displays calibrated. 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.
C:
Verify touch points align across the affected area while brightness remains normal. 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.
D:
Verify signed media boot and unsigned test boot is rejected by policy. This 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 refresh rate versus screen resolution instead.
Question 987
A support request at Silverline Travel presents this problem: A tower PC has no LEDs, fans, or POST activity after the user changed power outlets. The supporting record states that the AC cable and switched outlet are unverified and there is no sign the PSU receives input. The desired outcome is to isolate basic external power before replacing the motherboard. User data and business service continuity must be preserved. What should support monitor to catch a recurrence of the same failure?
- Monitor new memory errors and recurrence after the chassis is moved
- Monitor new POST codes or display initialization failures after component changes
- Monitor outlet failures and repeated power interruptions
- Track power event logs and thermal or electrical excursions
Explanation
Correct Answer
C:
Monitor outlet failures and repeated power interruptions. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the AC cable and switched outlet are unverified and there is no sign the PSU receives input. The support goal is to isolate basic external power before replacing the motherboard; this monitor action specifically addresses completely dead desktop power path without confusing a different subsystem.
Incorrect Answers
A:
Monitor new memory errors and recurrence after the chassis is moved. That action is appropriate for desktop memory fault preventing post, normally when a desktop powers on but gives a repeating memory-related beep pattern and no display. Here the observed facts require completely dead desktop power path instead.
B:
Monitor new POST codes or display initialization failures after component changes. That action is appropriate for post beep code interpretation and expansion-card isolation, normally when a newly upgraded desktop beeps at startup and shows no BIOS screen. Here the observed facts require completely dead desktop power path instead.
D:
Track power event logs and thermal or electrical excursions. This action is appropriate for psu instability under peak component load, normally when a machine passes idle checks but reboots when the GPU and CPU draw peak power together. Here the observed facts require completely dead desktop power path instead.
Question 988
A support request at Orchard Services presents this problem: 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. Which controlled service test best evaluates the planned approach?
- Issue a permitted test query that triggers a TCP retry after a truncated UDP response
- Test TCP 445 and open a harmless authorized file on a staging share
- Fail one lab application node while sending a controlled stream of valid requests
- Perform a controlled lease renewal from a test client with packet capture
Explanation
Correct Answer
D:
Perform a controlled lease renewal from a test client with packet capture. It tests the proposed solution safely on an approved representative system. 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 pilot action specifically addresses dhcp client and server port roles without confusing a different subsystem.
Incorrect Answers
A:
Issue a permitted test query that triggers a TCP retry after a truncated UDP response. 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.
B:
Test TCP 445 and open a harmless authorized file on a staging share. 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.
C:
Fail one lab application node while sending a controlled stream of valid requests. 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.
Question 989
During Amberline Finance's hardware and network incident triage, the technician encounters this condition: A laptop screen looks black but a flashlight reveals a faint intact desktop image. The supporting record states that an external display works and the built-in LCD image exists without sufficient illumination. The desired outcome is to distinguish backlight or power-circuit failure from GPU rendering failure. Any configuration change must be reversible and validated on a controlled test device. Which inspection most directly confirms the likely cause before changing components?
- Check cable damage, connector strain, monitor input selection and GPU outputs
- Review DHCP Discover and Offer exchange, relay route and scope health
- Inspect brightness controls, display cable, backlight power and serviceable panel components
- Confirm selected input, cable path, external display detection and output mode
Explanation
Correct Answer
C:
Inspect brightness controls, display cable, backlight power and serviceable panel components. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that an external display works and the built-in LCD image exists without sufficient illumination. The support goal is to distinguish backlight or power-circuit failure from GPU rendering failure; this diagnose action specifically addresses backlight failure on laptop lcd without confusing a different subsystem.
Incorrect Answers
A:
Check cable damage, connector strain, monitor input selection and GPU outputs. 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.
B:
Review DHCP Discover and Offer exchange, relay route and scope health. This 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 backlight failure on laptop lcd instead.
D:
Confirm selected input, cable path, external display detection and output 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.
Question 990
On a service ticket for Harborworks, the team observes: A file server has two equal 2 TB disks and needs redundancy against one disk failure. The supporting record states that a proposed RAID 0 stripe provides speed but no copy of data on a second drive. The desired outcome is to choose RAID 1 when simple mirroring is the requirement. The customer requires a verified fix rather than a guess based on one symptom. How should the solution first be tested on an approved spare or pilot system?
- Create a small lab array of two mirrored pairs striped together
- Simulate a single disk failure in an isolated RAID 1 test array
- Benchmark random reads on approved test HDD and SATA SSD devices
- Model two drive failures on a disposable RAID 6 lab array
Explanation
Correct Answer
B:
Simulate a single disk failure in an isolated RAID 1 test array. It tests the proposed solution safely on an approved representative system. The relevant observation is that a proposed RAID 0 stripe provides speed but no copy of data on a second drive. The support goal is to choose RAID 1 when simple mirroring is the requirement; this pilot action specifically addresses raid 1 mirror capacity and resilience without confusing a different subsystem.
Incorrect Answers
A:
Create a small lab array of two mirrored pairs striped together. That action is appropriate for raid 10 mirrored striped array, normally when a database server needs fast disk I/O and redundancy with four equal drives. Here the observed facts require raid 1 mirror capacity and resilience instead.
C:
Benchmark random reads on approved test HDD and SATA SSD devices. This action is appropriate for ssd versus hdd latency and interface, normally when a mobile user needs low-latency storage and shock resistance but a procurement request specifies a 5400 RPM hard disk. Here the observed facts require raid 1 mirror capacity and resilience 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 1 mirror capacity and resilience instead.
