CompTIA 220-1201 Practice Test 80
Question 790
A support request at Westbrook Energy presents this problem: An online storefront sees traffic triple for two hours and then fall back to normal. The supporting record states that the chosen cloud platform supports automatically adding and removing application capacity by demand. The desired outcome is to recognize elasticity as capacity adjustment to changing utilization. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. What should the technician verify first to establish the problem?
- Inspect provider tenancy model, contractual isolation guarantees and application data boundaries
- Identify where services run and whether there is functional integration between deployment models
- Inspect monitoring metrics, scaling policies and resource quotas
- Inspect billing dimensions for storage, requests, ingress and outbound transfer
Explanation
Correct Answer
C:
Inspect monitoring metrics, scaling policies and resource quotas. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the chosen cloud platform supports automatically adding and removing application capacity by demand. The support goal is to recognize elasticity as capacity adjustment to changing utilization; this diagnose action specifically addresses cloud elasticity versus fixed provisioning without confusing a different subsystem.
Incorrect Answers
A:
Inspect provider tenancy model, contractual isolation guarantees and application data boundaries. This action is appropriate for multitenancy versus dedicated cloud resources, normally when an organization uses a SaaS platform shared with several customer organizations. Here the observed facts require cloud elasticity versus fixed provisioning instead.
B:
Identify where services run and whether there is functional integration between deployment models. This 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 cloud elasticity versus fixed provisioning instead.
D:
Inspect billing dimensions for storage, requests, ingress and outbound transfer. This action is appropriate for metered cloud ingress and egress costs, normally when an organization expects to store modest data in cloud storage but regularly exports terabytes to an on-premises analytics platform. Here the observed facts require cloud elasticity versus fixed provisioning instead.
Question 791
On a service ticket for Crescent Operations, the team observes: A service desk receives a tablet whose back cover is separating beside the battery compartment. The desired outcome is to remove the battery hazard safely without puncturing the cells. User data and business service continuity must be preserved. Which verification result supports the intended technical outcome?
- Confirm the camera shows no image behind the closed shutter while audio remains unaffected
- Verify the new battery sits flat, charges normally, and the enclosure closes without pressure
- Confirm user files and boot integrity are restored and encryption reports protected state
- Compare Wi-Fi received signal strength and roaming stability before and after reconnection
Explanation
Correct Answer
B:
Verify the new battery sits flat, charges normally, and the enclosure closes without pressure. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that a service desk receives a tablet whose back cover is separating beside the battery compartment. The support goal is to remove the battery hazard safely without puncturing the cells; this validate action specifically addresses swollen laptop battery replacement without confusing a different subsystem.
Incorrect Answers
A:
Confirm the camera shows no image behind the closed shutter while audio remains unaffected. This action is appropriate for physical webcam privacy hardware, normally when a corporate laptop's camera indicator comes on during meetings even when the user thinks video is disabled. Here the observed facts require swollen laptop battery replacement instead.
C:
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 swollen laptop battery replacement instead.
D:
Compare Wi-Fi received signal strength and roaming stability before and after reconnection. 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 swollen laptop battery replacement instead.
Question 792
On a service ticket for Beacon Group, the team observes: 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. Which planned change most directly resolves the documented issue?
- Select a compatible SSD rather than a spinning HDD for the specified latency and shock profile
- Choose a resolution meeting workspace needs and refresh rate supported by the GPU and cable
- Service or recalibrate the compatible digitizer assembly after confirming driver and physical damage
- Select an IPS-class monitor meeting the required color gamut rather than choosing TN solely for speed
Explanation
Correct Answer
C:
Service or recalibrate the compatible digitizer assembly after confirming driver and physical damage. It corrects the documented cause using the compatible technology and support constraints. 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 design action specifically addresses digitizer input versus backlight inverter without confusing a different subsystem.
Incorrect Answers
A:
Select a compatible SSD rather than a spinning HDD for the specified latency and shock profile. 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.
B:
Choose a resolution meeting workspace needs and refresh rate supported by the GPU and cable. That action is appropriate for refresh rate versus screen resolution, normally when a support buyer mistakes 144 Hz for a count of display pixels when comparing two monitors. Here the observed facts require digitizer input versus backlight inverter instead.
D:
Select an IPS-class monitor meeting the required color gamut rather than choosing TN solely for speed. That action is appropriate for ips versus tn versus oled displays, normally when a graphic designer prioritizes consistent viewing angles and color accuracy over lowest display price. Here the observed facts require digitizer input versus backlight inverter instead.
Question 793
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 be tracked after the fix to maintain service reliability?
- Monitor resolver errors and DHCP option drift
- Monitor port configuration drift and unexpected subnet allocations
- Monitor repeat cable wear, overheating and loose plug fit
- Monitor busy-channel duration and newly deployed neighboring radios
Explanation
Correct Answer
B:
Monitor port configuration drift and unexpected subnet allocations. It tracks recurrence of the specific failure mechanism over time. 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 monitor action specifically addresses vlan mismatch causing one desk to lose access without confusing a different subsystem.
Incorrect Answers
A:
Monitor resolver errors and DHCP option drift. 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:
Monitor repeat cable wear, overheating and loose plug fit. 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:
Monitor busy-channel duration and newly deployed neighboring radios. 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 794
During Riverlight Retail's hardware and network incident triage, the technician encounters this condition: 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. What observation would verify successful service restoration?
- Verify the projector shows the test slide and remains stable in the selected mode
- Verify backup integrity and correct operation from the new healthy drive
- Verify movement no longer causes signal loss at the intended resolution
- Verify internal brightness returns while external video remains unaffected
Explanation
Correct Answer
A:
Verify the projector shows the test slide and remains stable in the selected mode. It proves the required function with an observable result instead of assuming the change worked. 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 validate action specifically addresses projector wrong input versus computer failure without confusing a different subsystem.
Incorrect Answers
B:
Verify backup integrity and correct operation from the new healthy drive. 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.
C:
Verify movement no longer causes signal loss at the intended resolution. 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 projector wrong input versus computer failure instead.
D:
Verify internal brightness returns while external video remains unaffected. That action is appropriate for backlight failure on laptop lcd, normally when a laptop screen looks black but a flashlight reveals a faint intact desktop image. Here the observed facts require projector wrong input versus computer failure instead.
Question 795
At Orchard Services, a technician working in computer equipment refresh identifies this issue: A repair shop accidentally ships laptop-size RAM to a tower PC that takes full-size modules. The desired outcome is to recognize memory module form factors and physical socket compatibility. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. Which planned change most directly resolves the documented issue?
- Specify a platform that explicitly supports and enables ECC where required
- Select a qualified DDR4 module of a supported configuration rather than DDR5
- Select a compatible SSD rather than a spinning HDD for the specified latency and shock profile
- Use the correct desktop DIMM rather than forcing a laptop SODIMM into the socket
Explanation
Correct Answer
D:
Use the correct desktop DIMM rather than forcing a laptop SODIMM into the socket. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a repair shop accidentally ships laptop-size RAM to a tower PC that takes full-size modules. The support goal is to recognize memory module form factors and physical socket compatibility; this design action specifically addresses sodimm versus dimm form factor without confusing a different subsystem.
Incorrect Answers
A:
Specify a platform that explicitly supports and enables ECC where required. That action is appropriate for ecc memory error correction compatibility, normally when a workstation used for scientific computation requires supported correction of single-bit RAM errors. Here the observed facts require sodimm versus dimm form factor instead.
B:
Select a qualified DDR4 module of a supported configuration rather than DDR5. That action is appropriate for ddr generation electrical compatibility, normally when a replacement RAM order has the correct capacity but the wrong DDR generation. Here the observed facts require sodimm versus dimm form factor instead.
C:
Select a compatible SSD rather than a spinning HDD for the specified latency and shock profile. 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 sodimm versus dimm form factor instead.
Question 796
On a service ticket for Aster Systems, the team observes: After a wiring closet change, a desk computer receives a guest-network address and the VoIP phone cannot register. The desired outcome is to diagnose incorrect VLAN port policy rather than replacing healthy endpoints. 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?
- Resolve an approved internal hostname from a test client using the corrected DNS server
- Power the PC from a verified test outlet and known-good cord without opening the energized PSU
- Pilot an alternate AP channel in a safe window while measuring client retry rate
- Test one authorized phone-and-PC desk port with corrected tagged and untagged VLANs
Explanation
Correct Answer
D:
Test one authorized phone-and-PC desk port with corrected tagged and untagged VLANs. It tests the proposed solution safely on an approved representative system. The relevant observation is that after a wiring closet change, a desk computer receives a guest-network address and the VoIP phone cannot register. The support goal is to diagnose incorrect VLAN port policy rather than replacing healthy endpoints; this pilot action specifically addresses vlan mismatch causing one desk to lose access without confusing a different subsystem.
Incorrect Answers
A:
Resolve an approved internal hostname from a test client using the corrected DNS server. 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.
B:
Power the PC from a verified test outlet and known-good cord without opening the energized PSU. This action is appropriate for completely dead desktop power path, normally when a tower PC has no LEDs, fans, or POST activity after the user changed power outlets. Here the observed facts require vlan mismatch causing one desk to lose access instead.
C:
Pilot an alternate AP channel in a safe window while measuring client retry rate. 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 797
During Beacon Group's small-office network service desk, the technician encounters this condition: New IP cameras power off when all connected access points and phones start at once. The supporting record states that the PoE switch ports support devices individually but the aggregate supplied wattage is below total load. The desired outcome is to select power-delivery capacity based on per-port and overall PoE requirements. Any configuration change must be reversible and validated on a controlled test device. What should be tracked after the fix to maintain service reliability?
- Monitor SMB connection failures and excessive port 445 exposure
- Monitor default-gateway reachability and route changes
- Monitor PoE overload events and added device power requirements
- Monitor ONT optical alarms and WAN gateway status separately
Explanation
Correct Answer
C:
Monitor PoE overload events and added device power requirements. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the PoE switch ports support devices individually but the aggregate supplied wattage is below total load. The support goal is to select power-delivery capacity based on per-port and overall PoE requirements; this monitor action specifically addresses poe switch power budget without confusing a different subsystem.
Incorrect Answers
A:
Monitor SMB connection failures and excessive port 445 exposure. This 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 poe switch power budget instead.
B:
Monitor default-gateway reachability and route changes. That 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 poe switch power budget instead.
D:
Monitor ONT optical alarms and WAN gateway status separately. 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 poe switch power budget instead.
Question 798
At Pioneer Markets, a technician working in desktop hardware service bench identifies this issue: A desktop repair requires replacement memory but the spare part comes from a notebook. The supporting record states that the desktop has full-length DIMM sockets and the spare is a short SODIMM. The desired outcome is to recognize memory module form factors and physical socket compatibility. The goal is to restore required function without creating a new security or safety problem. Which safe pilot action gives the most relevant evidence?
- Verify a test single-mode pair with appropriate optics and light-level measurements
- Install a compatible test DIMM with power disconnected and ESD precautions
- Use a known-supported test module and confirm safe seating and POST
- Test an ECC-capable workstation using manufacturer diagnostics and supported event reporting
Explanation
Correct Answer
B:
Install a compatible test DIMM with power disconnected and ESD precautions. It tests the proposed solution safely on an approved representative system. The relevant observation is that the desktop has full-length DIMM sockets and the spare is a short SODIMM. The support goal is to recognize memory module form factors and physical socket compatibility; this pilot action specifically addresses sodimm versus dimm form factor without confusing a different subsystem.
Incorrect Answers
A:
Verify a test single-mode pair with appropriate optics and light-level measurements. This 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 sodimm versus dimm form factor instead.
C:
Use a known-supported test module and confirm safe seating and POST. That action is appropriate for ddr generation electrical compatibility, normally when a replacement RAM order has the correct capacity but the wrong DDR generation. Here the observed facts require sodimm versus dimm form factor instead.
D:
Test an ECC-capable workstation using manufacturer diagnostics and supported event reporting. That action is appropriate for ecc memory error correction compatibility, normally when a workstation used for scientific computation requires supported correction of single-bit RAM errors. Here the observed facts require sodimm versus dimm form factor instead.
Question 799
On a service ticket for Amberline Finance, the team observes: A desktop's wired NIC repeatedly disconnects when a frayed Ethernet lead moves. The desired outcome is to isolate physical cable or connector failure before changing network services. A safe non-destructive test must be used before replacing additional parts. What should the technician recommend as the corrective approach?
- Correct the DNS server configuration and flush stale failed resolution records if appropriate
- Replace the defective patch lead and inspect the wall jack before blaming DNS
- Choose less congested supported channels or move compatible clients to a cleaner 5 GHz band
- Repair the supported backlight or panel power assembly after confirming external video health
Explanation
Correct Answer
B:
Replace the defective patch lead and inspect the wall jack before blaming DNS. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a desktop's wired NIC repeatedly disconnects when a frayed Ethernet lead moves. The support goal is to isolate physical cable or connector failure before changing network services; this design action specifically addresses copper ethernet link flapping without confusing a different subsystem.
Incorrect Answers
A:
Correct the DNS server configuration and flush stale failed resolution records if appropriate. 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 copper ethernet link flapping instead.
C:
Choose less congested supported channels or move compatible clients to a cleaner 5 GHz band. 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 copper ethernet link flapping instead.
D:
Repair the supported backlight or panel power assembly after confirming external video health. 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 copper ethernet link flapping instead.
Question 800
At Harborworks, a technician working in branch networking support identifies this issue: A 24-port switch can power each phone alone but fails when most ports power cameras simultaneously. The desired outcome is to select power-delivery capacity based on per-port and overall PoE requirements. 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?
- 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
- Collect a short approved RF survey before and after changing the test AP channel
- Test a lab Ethernet connection after a provisioned ONT, without altering optical connectors
Explanation
Correct Answer
B:
Connect representative powered devices to a lab switch and monitor total power budget. It tests the proposed solution safely on an approved representative system. The relevant observation is that a 24-port switch can power each phone alone but fails when most ports power cameras simultaneously. The support goal is to select power-delivery capacity based on per-port and overall PoE requirements; this pilot action specifically addresses poe switch power budget without confusing a different subsystem.
Incorrect Answers
A:
Test ping between subnets through an approved router after confirming local switching. That 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 poe switch power budget instead.
C:
Collect a short approved RF survey before and after changing the test AP channel. This action is appropriate for wi-fi analyzer versus network tap, normally when staff complain about busy wireless channels in a meeting room. Here the observed facts require poe switch power budget instead.
D:
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 poe switch power budget instead.
