CompTIA 220-1201 Practice Test 65
Question 640
During Evergreen Manufacturing's branch networking support, the technician encounters this condition: A customer portal slows because all traffic reaches one server while two identical servers sit idle. The desired outcome is to choose the appropriate network service for distributing application traffic. A safe non-destructive test must be used before replacing additional parts. Which post-repair signal best detects regression or repeat exposure?
- Monitor default-gateway reachability and route changes
- Monitor NTP offset, source reachability and logger ingestion separately
- Monitor DNS response failures and incorrect DHCP DNS option deployment
- Monitor backend health, distribution and excessive failover events
Explanation
Correct Answer
D:
Monitor backend health, distribution and excessive failover events. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a customer portal slows because all traffic reaches one server while two identical servers sit idle. The support goal is to choose the appropriate network service for distributing application traffic; this monitor action specifically addresses load balancer versus proxy server functions without confusing a different subsystem.
Incorrect Answers
A:
Monitor default-gateway reachability and route changes. This action is appropriate for router versus layer 2 switch forwarding, normally when two PCs on separate IPv4 subnets can communicate within their own LANs but not across subnets. Here the observed facts require load balancer versus proxy server functions instead.
B:
Monitor NTP offset, source reachability and logger ingestion separately. 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:
Monitor DNS response failures and incorrect DHCP DNS option deployment. 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.
Question 641
A support request at Orchard Services presents this problem: A desk phone and PC stop reaching their correct services after a switch port change. The supporting record states that the switch now assigns the desk port to the guest VLAN instead of the approved employee and voice VLAN configuration. The desired outcome is to diagnose incorrect VLAN port policy rather than replacing healthy endpoints. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. What should the technician verify first to establish the problem?
- Inspect port access and voice VLAN settings, LLDP, assigned IP subnets and switch change log
- Check resolver settings, DNS request responses and direct-IP reachability
- Inspect the port for lint, bent pins, moisture indicator and cable seating with power disconnected
- Inspect channel use, signal strength, client retries and non-Wi-Fi interference sources
Explanation
Correct Answer
A:
Inspect port access and voice VLAN settings, LLDP, assigned IP subnets and switch change log. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the switch now assigns the desk port to the guest VLAN instead of the approved employee and voice VLAN configuration. The support goal is to diagnose incorrect VLAN port policy rather than replacing healthy endpoints; this diagnose action specifically addresses vlan mismatch causing one desk to lose access without confusing a different subsystem.
Incorrect Answers
B:
Check resolver settings, DNS request responses and direct-IP reachability. That 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 vlan mismatch causing one desk to lose access instead.
C:
Inspect the port for lint, bent pins, moisture indicator and cable seating with power disconnected. This action is appropriate for mobile charging port debris, normally when a phone charges intermittently only when its USB-C plug is held at an angle. Here the observed facts require vlan mismatch causing one desk to lose access instead.
D:
Inspect channel use, signal strength, client retries and non-Wi-Fi interference sources. That action is appropriate for intermittent wi-fi due to channel interference, normally when users near a lunchroom suffer slow 2.4 GHz Wi-Fi at peak periods while wired links stay normal. Here the observed facts require vlan mismatch causing one desk to lose access instead.
Question 642
A support request at Brookside Agency presents this problem: A four-disk production array must remain available during any two simultaneous drive failures. The supporting record states that RAID 5 can tolerate one disk failure, while RAID 6 uses two parity units. The desired outcome is to select a RAID level providing protection against two disk failures. A safe non-destructive test must be used before replacing additional parts. Which safe pilot action gives the most relevant evidence?
- Benchmark random reads on approved test HDD and SATA SSD devices
- 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
D:
Model two drive failures on a disposable RAID 6 lab array. It tests the proposed solution safely on an approved representative system. The relevant observation is that RAID 5 can tolerate one disk failure, while RAID 6 uses two parity units. The support goal is to select a RAID level providing protection against two disk failures; this pilot action specifically addresses raid 5 versus raid 6 dual parity without confusing a different subsystem.
Incorrect Answers
A:
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 5 versus raid 6 dual parity instead.
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 5 versus raid 6 dual parity instead.
C:
Simulate a single disk failure in an isolated RAID 1 test array. This 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 5 versus raid 6 dual parity instead.
Question 643
During Juniper Tech's workplace mobile support, the technician encounters this condition: A notebook loses Wi-Fi range after a screen repair while its wireless adapter remains detected. The desired outcome is to restore the wireless antenna path without replacing a healthy radio. Any configuration change must be reversible and validated on a controlled test device. What should be tracked after the fix to maintain service reliability?
- Track backup failures, replacement SSD health and encryption key escrow
- Monitor repeat weak-signal reports associated with lid movement
- Track replacement-battery health and repeat swelling reports after the repair
- Monitor carrier provisioning failures and profiles unexpectedly disabled
Explanation
Correct Answer
B:
Monitor repeat weak-signal reports associated with lid movement. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a notebook loses Wi-Fi range after a screen repair while its wireless adapter remains detected. The support goal is to restore the wireless antenna path without replacing a healthy radio; this monitor action specifically addresses laptop wi-fi antenna reconnection without confusing a different subsystem.
Incorrect Answers
A:
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 laptop wi-fi antenna reconnection instead.
C:
Track replacement-battery health and repeat swelling reports after the repair. This action is appropriate for swollen laptop battery replacement, normally when a business laptop has a lifted trackpad and a visibly swollen internal lithium-ion battery. Here the observed facts require laptop wi-fi antenna reconnection instead.
D:
Monitor carrier provisioning failures and profiles unexpectedly disabled. This 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 laptop wi-fi antenna reconnection instead.
Question 644
At Bluefin Logistics, a technician working in small-office network service desk identifies this issue: A workstation has a valid IPv4 address, gateway and lease but cannot reach services by hostname. The supporting record states that direct access by approved service IP works while DNS queries time out. The desired outcome is to separate name resolution failures from IP address provisioning. The goal is to restore required function without creating a new security or safety problem. Which safe pilot action gives the most relevant evidence?
- Pilot NTP sync on one lab router and send a harmless test syslog entry
- Query a known internal name on a test client with corrected DNS settings
- Renew the printer lease in a lab subnet after applying its reservation
- Fail one lab application node while sending a controlled stream of valid requests
Explanation
Correct Answer
B:
Query a known internal name on a test client with corrected DNS settings. It tests the proposed solution safely on an approved representative system. The relevant observation is that direct access by approved service IP works while DNS queries time out. The support goal is to separate name resolution failures from IP address provisioning; this pilot action specifically addresses dns resolution versus dhcp address assignment without confusing a different subsystem.
Incorrect Answers
A:
Pilot NTP sync on one lab router and send a harmless test syslog entry. 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:
Renew the printer lease in a lab subnet after applying its reservation. This 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 dns resolution versus dhcp address assignment instead.
D:
Fail one lab application node while sending a controlled stream of valid requests. 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 645
At Monarch Pharmacy, a technician working in hardware and network incident triage identifies this issue: An office PC obtains a 169.254 address and cannot reach internet destinations. The supporting record states that its VLAN's DHCP helper address was removed during a switch configuration update. The desired outcome is to identify absent DHCP replies rather than blaming remote DNS first. Any configuration change must be reversible and validated on a controlled test device. Which verification result supports the intended technical outcome?
- Verify retry rate and throughput improve under comparable load
- Verify named service access succeeds without changing the existing working gateway
- Verify stable negotiated link speed and disappearance of interface errors
- Verify the client receives valid scope IP, subnet mask, gateway and DNS options
Explanation
Correct Answer
D:
Verify the client receives valid scope IP, subnet mask, gateway and DNS options. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that its VLAN's DHCP helper address was removed during a switch configuration update. The support goal is to identify absent DHCP replies rather than blaming remote DNS first; this validate action specifically addresses dhcp failure and 169.254 apipa symptom without confusing a different subsystem.
Incorrect Answers
A:
Verify retry rate and throughput improve under comparable load. This action is appropriate for intermittent wi-fi due to channel interference, normally when users near a lunchroom suffer slow 2.4 GHz Wi-Fi at peak periods while wired links stay normal. Here the observed facts require dhcp failure and 169.254 apipa symptom instead.
B:
Verify named service access succeeds without changing the existing working gateway. 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 dhcp failure and 169.254 apipa symptom instead.
C:
Verify stable negotiated link speed and disappearance of interface errors. This action is appropriate for copper ethernet link flapping, normally when a workstation loses Ethernet connection whenever its patch lead is bent. Here the observed facts require dhcp failure and 169.254 apipa symptom instead.
Question 646
During Beacon Group's computer equipment refresh, the technician encounters this condition: A laptop screen is bright but a stylus cannot register pressure on one strip of the touch layer. The desired outcome is to distinguish touch digitizer trouble from display brightness or backlight faults. A safe non-destructive test must be used before replacing additional parts. What should the technician verify first to establish the problem?
- Inspect workload random I/O, storage interface, capacity and endurance
- Check touch controller reporting and the glass digitizer surface instead of replacing the inverter
- Inspect horizontal and vertical pixel dimensions separately from rated Hz and link support
- Compare IPS and TN viewing-angle color shifts, calibration and target workload
Explanation
Correct Answer
B:
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 a laptop screen is bright but a stylus cannot register pressure on one strip of the touch layer. 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
A:
Inspect workload random I/O, storage interface, capacity and endurance. 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 digitizer input versus backlight inverter instead.
C:
Inspect horizontal and vertical pixel dimensions separately from rated Hz and link support. 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 digitizer input versus backlight inverter instead.
D:
Compare IPS and TN viewing-angle color shifts, calibration and target workload. 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 digitizer input versus backlight inverter instead.
Question 647
At Westbrook Energy, a technician working in desktop hardware service bench identifies this issue: A newly crimped eight-wire Ethernet cable fails a wiremap test because one end follows T568A and the other T568B. The supporting record states that the site intended a normal straight-through patch lead with matching conductor order at both ends. The desired outcome is to apply consistent Ethernet copper pair termination standards. A safe non-destructive test must be used before replacing additional parts. What observation would verify successful service restoration?
- Verify the negotiated link and measured transfer rate match the supported mode
- Verify all conductors and pairs map correctly end-to-end
- Confirm the optical receive power and link speed meet both transceiver specifications
- Verify drive detection and intended interface performance without forcing a mismatched module
Explanation
Correct Answer
B:
Verify all conductors and pairs map correctly end-to-end. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that the site intended a normal straight-through patch lead with matching conductor order at both ends. The support goal is to apply consistent Ethernet copper pair termination standards; this validate action specifically addresses t568a versus t568b rj45 terminations without confusing a different subsystem.
Incorrect Answers
A:
Verify the negotiated link and measured transfer rate match the supported mode. This action is appropriate for usb-c versus thunderbolt port capability, normally when an external high-bandwidth storage enclosure only negotiates low speed on a laptop USB-C connector. Here the observed facts require t568a versus t568b rj45 terminations instead.
C:
Confirm the optical receive power and link speed meet both transceiver specifications. 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.
D:
Verify drive detection and intended interface performance without forcing a mismatched module. 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.
Question 648
On a service ticket for Evergreen Manufacturing, the team observes: A user's phone receives mail but calendar edits never appear on the company laptop. The supporting record states that both devices use different cloud accounts despite similarly named calendar applications. The desired outcome is to restore synchronization by matching the authorized account and sync service. Any configuration change must be reversible and validated on a controlled test device. What should the technician recommend as the corrective approach?
- Use available app-level protection policies for corporate data instead of assuming whole-device ownership
- Configure both clients to use the approved corporate calendar and contacts service
- Install the authorized eSIM profile and select the correct plan for cellular data
- Reconnect the correct antenna lead and route cables away from hinge pinch points
Explanation
Correct Answer
B:
Configure both clients to use the approved corporate calendar and contacts service. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that both devices use different cloud accounts despite similarly named calendar applications. The support goal is to restore synchronization by matching the authorized account and sync service; this design action specifically addresses mobile calendar and contact synchronization without confusing a different subsystem.
Incorrect Answers
A:
Use available app-level protection policies for corporate data instead of assuming whole-device ownership. That 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 mobile calendar and contact synchronization instead.
C:
Install the authorized eSIM profile and select the correct plan for cellular data. 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 mobile calendar and contact synchronization instead.
D:
Reconnect the correct antenna lead and route cables away from hinge pinch points. This action is appropriate for laptop wi-fi antenna reconnection, normally when after a laptop display assembly replacement, Bluetooth works but Wi-Fi signal is very weak. Here the observed facts require mobile calendar and contact synchronization instead.
Question 649
On a service ticket for Riverlight Retail, the team observes: A high-use laser device repeatedly fails to pull the first sheet although print quality is good. The desired outcome is to distinguish pickup roller wear from depleted toner. Only approved service procedures and compatible replacement components may be used. What should the technician verify first to establish the problem?
- Inspect whether the media is direct thermal, coated side, sensor placement and heating element cleanliness
- Inspect repeating mark spacing, imaging drum condition and cartridge compatibility
- Inspect feed roller grip, separation pad, paper weight and tray condition
- Check nozzle pattern, ink cartridge condition and printhead alignment
Explanation
Correct Answer
C:
Inspect feed roller grip, separation pad, paper weight and tray condition. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a high-use laser device repeatedly fails to pull the first sheet although print quality is good. The support goal is to distinguish pickup roller wear from depleted toner; this diagnose action specifically addresses laser printer repeated paper jams at pickup without confusing a different subsystem.
Incorrect Answers
A:
Inspect whether the media is direct thermal, coated side, sensor placement and heating element cleanliness. 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 laser printer repeated paper jams at pickup instead.
B:
Inspect repeating mark spacing, imaging drum condition and cartridge compatibility. 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 laser printer repeated paper jams at pickup instead.
D:
Check nozzle pattern, ink cartridge condition and printhead alignment. 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 printer repeated paper jams at pickup instead.
Question 650
A support request at Westbrook Energy presents this problem: A shipping label printer feeds paper but produces completely blank labels. The supporting record states that the printer uses direct-thermal media and its paper roll has been installed with the coated side facing away from the heating element. The desired outcome is to diagnose thermal paper orientation rather than ink or toner depletion. Any configuration change must be reversible and validated on a controlled test device. Which controlled service test best evaluates the planned approach?
- Test several sheets from tray 1 after a supported roller service
- Select the existing OS boot manager temporarily on a test PC
- Run one controlled cleaning cycle and print a nozzle verification pattern
- Feed a short set of labeled test media in the proper orientation
Explanation
Correct Answer
D:
Feed a short set of labeled test media in the proper orientation. It tests the proposed solution safely on an approved representative system. The relevant observation is that the printer uses direct-thermal media and its paper roll has been installed with the coated side facing away from the heating element. The support goal is to diagnose thermal paper orientation rather than ink or toner depletion; this pilot action specifically addresses thermal printer paper orientation without confusing a different subsystem.
Incorrect Answers
A:
Test several sheets from tray 1 after a supported roller service. This action is appropriate for laser printer repeated paper jams at pickup, normally when a laser printer jams on the first page when it tries to feed paper from tray 1. Here the observed facts require thermal printer paper orientation instead.
B:
Select the existing OS boot manager temporarily on a test PC. This action is appropriate for uefi boot order after a second drive, normally when a computer reports no bootable operating system after a new secondary drive was added. Here the observed facts require thermal printer paper orientation instead.
C:
Run one controlled cleaning cycle and print a nozzle verification pattern. This action is appropriate for inkjet horizontal banding and nozzle obstruction, normally when an inkjet photo printer produces blank horizontal stripes in cyan images. Here the observed facts require thermal printer paper orientation instead.
