CompTIA 220-1201 Practice Test 56
Question 550
A support request at Northland Labs presents this problem: A workstation loses Ethernet connection whenever its patch lead is bent. The supporting record states that switch counters show link up/down events and interface errors but its IP settings are valid. The desired outcome is to isolate physical cable or connector failure before changing network services. The customer requires a verified fix rather than a guess based on one symptom. Which verification result supports the intended technical outcome?
- Verify retry rate and throughput improve under comparable load
- Verify CPU temperature and fan speed stay within specified operating limits
- Verify named service access succeeds without changing the existing working gateway
- Verify stable negotiated link speed and disappearance of interface errors
Explanation
Correct Answer
D:
Verify stable negotiated link speed and disappearance of interface errors. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that switch counters show link up/down events and interface errors but its IP settings are valid. The support goal is to isolate physical cable or connector failure before changing network services; this validate action specifically addresses copper ethernet link flapping without confusing a different subsystem.
Incorrect Answers
A:
Verify retry rate and throughput improve under comparable load. 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.
B:
Verify CPU temperature and fan speed stay within specified operating limits. This action is appropriate for cpu overheat from failed fan, normally when a desktop shuts off only after several minutes of high CPU utilization. Here the observed facts require copper ethernet link flapping instead.
C:
Verify named service access succeeds without changing the existing working gateway. 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.
Question 551
On a service ticket for Evergreen Manufacturing, the team observes: A desk display flickers whenever someone nudges a damaged DisplayPort cable. The desired outcome is to determine whether a physical video link is causing intermittent display loss. Any configuration change must be reversible and validated on a controlled test device. What should the technician recommend as the corrective approach?
- Replace the suspect cable and secure connectors without unnecessary GPU replacement
- Choose less congested supported channels or move compatible clients to a cleaner 5 GHz band
- Select the correct HDMI input and supported duplicate or extend mode
- Repair the supported backlight or panel power assembly after confirming external video health
Explanation
Correct Answer
A:
Replace the suspect cable and secure connectors without unnecessary GPU replacement. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a desk display flickers whenever someone nudges a damaged DisplayPort cable. The support goal is to determine whether a physical video link is causing intermittent display loss; this design action specifically addresses intermittent monitor image due to video cable without confusing a different subsystem.
Incorrect Answers
B:
Choose less congested supported channels or move compatible clients to a cleaner 5 GHz band. 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 intermittent monitor image due to video cable instead.
C:
Select the correct HDMI input and supported duplicate or extend 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 intermittent monitor image due to video cable instead.
D:
Repair the supported backlight or panel power assembly after confirming external video health. 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 intermittent monitor image due to video cable instead.
Question 552
During Summit Media's hardware and network incident triage, the technician encounters this condition: A workstation opens a service directly by numeric IP but says its hostname cannot be resolved. The supporting record states that it has a valid address and gateway but was configured with an unreachable DNS resolver. The desired outcome is to troubleshoot name resolution separately from basic routed network access. The technician must document observations separately from assumptions. Which planned change most directly resolves the documented issue?
- Correct the DNS server configuration and flush stale failed resolution records if appropriate
- Restore the intended voice and data VLAN configuration with appropriate scope
- Choose less congested supported channels or move compatible clients to a cleaner 5 GHz band
- Restore the correct DHCP relay or server reachability for that VLAN
Explanation
Correct Answer
A:
Correct the DNS server configuration and flush stale failed resolution records if appropriate. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that it has a valid address and gateway but was configured with an unreachable DNS resolver. The support goal is to troubleshoot name resolution separately from basic routed network access; this design action specifically addresses dns failure with working ip connectivity without confusing a different subsystem.
Incorrect Answers
B:
Restore the intended voice and data VLAN configuration with appropriate scope. 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 dns failure with working ip connectivity instead.
C:
Choose less congested supported channels or move compatible clients to a cleaner 5 GHz band. 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 dns failure with working ip connectivity instead.
D:
Restore the correct DHCP relay or server reachability for that VLAN. 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 dns failure with working ip connectivity instead.
Question 553
At Cedar Education, a technician working in small-office network service desk identifies this issue: A small office needs guest Wi-Fi isolated from payroll devices but also needs secure remote employee access. The supporting record states that guest and payroll devices share a local switch while remote users traverse the public internet. The desired outcome is to separate local network segmentation requirements from remote encrypted connectivity. User data and business service continuity must be preserved. Which configuration or repair action best addresses the stated requirement?
- Create a scoped DHCP reservation for the printer MAC instead of relying on an exclusion as an assignment
- Create a separate guest VLAN with appropriate ACLs and a supported authenticated VPN for remote staff
- Correct MX routing to the active mail service without treating SPF as an incoming delivery address
- Label short-range personal devices PAN, building networking LAN and multi-site WAN appropriately
Explanation
Correct Answer
B:
Create a separate guest VLAN with appropriate ACLs and a supported authenticated VPN for remote staff. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that guest and payroll devices share a local switch while remote users traverse the public internet. The support goal is to separate local network segmentation requirements from remote encrypted connectivity; this design action specifically addresses vlan segmentation versus vpn encrypted tunneling without confusing a different subsystem.
Incorrect Answers
A:
Create a scoped DHCP reservation for the printer MAC instead of relying on an exclusion as an assignment. 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.
C:
Correct MX routing to the active mail service without treating SPF as an incoming delivery address. 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.
D:
Label short-range personal devices PAN, building networking LAN and multi-site WAN appropriately. This action is appropriate for pan versus lan versus wan scope, normally when a technician must classify a Bluetooth watch connection, office Ethernet and multi-site leased link. Here the observed facts require vlan segmentation versus vpn encrypted tunneling instead.
Question 554
On a service ticket for Summit Media, the team observes: A purchasing manager believes a separate SaaS login means the vendor built an exclusive physical server for each customer. The desired outcome is to distinguish logical tenant isolation from guaranteed dedicated physical hardware. Only approved service procedures and compatible replacement components may be used. What should the technician verify first to establish the problem?
- Identify where services run and whether there is functional integration between deployment models
- Inspect monitoring metrics, scaling policies and resource quotas
- Inspect provider tenancy model, contractual isolation guarantees and application data boundaries
- Inspect snapshot location, retention and independent backup copies
Explanation
Correct Answer
C:
Inspect provider tenancy model, contractual isolation guarantees and application data boundaries. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that a purchasing manager believes a separate SaaS login means the vendor built an exclusive physical server for each customer. The support goal is to distinguish logical tenant isolation from guaranteed dedicated physical hardware; this diagnose action specifically addresses multitenancy versus dedicated cloud resources without confusing a different subsystem.
Incorrect Answers
A:
Identify where services run and whether there is functional integration between deployment models. 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.
B:
Inspect monitoring metrics, scaling policies and resource quotas. 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.
D:
Inspect snapshot location, retention and independent backup copies. This action is appropriate for vm snapshot versus independent backup, normally when a developer calls a local VM snapshot a complete disaster recovery backup. Here the observed facts require multitenancy versus dedicated cloud resources instead.
Question 555
During Juniper Tech's desktop hardware service bench, the technician encounters this condition: A designer's PC has an available physical PCIe x16 slot but an upgraded graphics card fails under load. The supporting record states that the card also needs supplemental PCIe power cables that the PSU lacks. The desired outcome is to check slot, PSU and physical-clearance dependencies for an expansion card. Any configuration change must be reversible and validated on a controlled test device. What should the technician verify first to establish the problem?
- Check heatsink contact, fan operation, thermal compound and measured CPU temperature
- Inspect application print preferences, default tray, media size and duplex capability
- Inspect UEFI Secure Boot state, key database and boot entries separately
- Inspect GPU power connectors, PSU rating, PCIe slot availability and enclosure clearance
Explanation
Correct Answer
D:
Inspect GPU power connectors, PSU rating, PCIe slot availability and enclosure clearance. It checks the likely failure boundary before altering working parts or settings. The relevant observation is that the card also needs supplemental PCIe power cables that the PSU lacks. The support goal is to check slot, PSU and physical-clearance dependencies for an expansion card; this diagnose action specifically addresses pcie slot and gpu power constraints without confusing a different subsystem.
Incorrect Answers
A:
Check heatsink contact, fan operation, thermal compound and measured CPU temperature. That action is appropriate for cpu heatsink thermal interface, normally when a workstation reaches a thermal limit seconds after a cooler was replaced. Here the observed facts require pcie slot and gpu power constraints instead.
B:
Inspect application print preferences, default tray, media size and duplex capability. This action is appropriate for printer duplex and tray settings, normally when a network printer puts letter-size forms on the wrong paper and uses one-sided output. Here the observed facts require pcie slot and gpu power constraints instead.
C:
Inspect UEFI Secure Boot state, key database and boot entries separately. 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 pcie slot and gpu power constraints instead.
Question 556
At Clearwater Telecom, a technician working in hardware and network incident triage identifies this issue: A phone charges intermittently only when its USB-C plug is held at an angle. The supporting record states that the charger and cable charge another device and debris is visible near the phone port. The desired outcome is to isolate a connector obstruction without damaging live charging contacts. The customer requires a verified fix rather than a guess based on one symptom. Which post-repair signal best detects regression or repeat exposure?
- Monitor abnormal background wakeups and OS update regressions
- Monitor repeat cable wear, overheating and loose plug fit
- Monitor data caps, roaming restrictions and carrier registration changes
- Monitor battery warnings and unexpected device handoffs
Explanation
Correct Answer
B:
Monitor repeat cable wear, overheating and loose plug fit. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that the charger and cable charge another device and debris is visible near the phone port. The support goal is to isolate a connector obstruction without damaging live charging contacts; this monitor action specifically addresses mobile charging port debris without confusing a different subsystem.
Incorrect Answers
A:
Monitor abnormal background wakeups and OS update regressions. This action is appropriate for background app mobile battery drain, normally when a business phone loses most of its battery overnight despite a healthy battery test. Here the observed facts require mobile charging port debris instead.
C:
Monitor data caps, roaming restrictions and carrier registration changes. This action is appropriate for mobile data failure due to disabled cellular, normally when a smartphone can browse over Wi-Fi but cannot connect to the internet when leaving the office. Here the observed facts require mobile charging port debris instead.
D:
Monitor battery warnings and unexpected device handoffs. This action is appropriate for bluetooth accessory reconnect failure, normally when a tablet repeatedly loses a wireless barcode scanner despite normal Wi-Fi service. Here the observed facts require mobile charging port debris instead.
Question 557
On a service ticket for Monarch Pharmacy, the team observes: An organization needs multiple production VMs on a dedicated virtualization host without a general-purpose desktop OS layer. The supporting record states that its proposed desktop hypervisor runs on top of a user workstation operating system. The desired outcome is to choose the hypervisor class appropriate for dedicated host operation. Service work must follow power isolation, ESD, and manufacturer instructions when applicable. Which verification result supports the intended technical outcome?
- Verify the application runs in its container while kernel version comes from the host
- Confirm the VM can be isolated and removed without reinstalling the laptop host
- Verify guest machines start without depending on an interactive desktop host OS
- Verify rollback works but also confirm independent recovery after simulated host loss
Explanation
Correct Answer
C:
Verify guest machines start without depending on an interactive desktop host OS. It proves the required function with an observable result instead of assuming the change worked. The relevant observation is that its proposed desktop hypervisor runs on top of a user workstation operating system. The support goal is to choose the hypervisor class appropriate for dedicated host operation; this validate action specifically addresses type 1 versus type 2 hypervisors without confusing a different subsystem.
Incorrect Answers
A:
Verify the application runs in its container while kernel version comes from the host. This action is appropriate for container isolation versus full virtual machine, normally when a team needs to package one web service and its dependencies but not another complete guest kernel. Here the observed facts require type 1 versus type 2 hypervisors instead.
B:
Confirm the VM can be isolated and removed without reinstalling the laptop host. This action is appropriate for hosted type 2 virtualization for testing, normally when a help desk engineer needs an isolated test operating system on an existing laptop. Here the observed facts require type 1 versus type 2 hypervisors instead.
D:
Verify rollback works but also confirm independent recovery after simulated host loss. This action is appropriate for vm snapshot versus independent backup, normally when a developer calls a local VM snapshot a complete disaster recovery backup. Here the observed facts require type 1 versus type 2 hypervisors instead.
Question 558
On a service ticket for Orchard Services, the team observes: 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 planned change most directly resolves the documented issue?
- Deploy an appropriate load balancer with health probes for the supported service
- Restore DHCP server or relay reachability rather than assigning random static client addresses
- Permit the authorized DNS transport paths including TCP 53 without opening unrelated services
- Allow approved SMB 445 between specified clients and the file server without opening remote desktop
Explanation
Correct Answer
B:
Restore DHCP server or relay reachability rather than assigning random static client addresses. It corrects the documented cause using the compatible technology and support constraints. 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 design action specifically addresses dhcp client and server port roles without confusing a different subsystem.
Incorrect Answers
A:
Deploy an appropriate load balancer with health probes for the supported service. 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:
Permit the authorized DNS transport paths including TCP 53 without opening unrelated services. This 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:
Allow approved SMB 445 between specified clients and the file server without opening remote desktop. 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 dhcp client and server port roles instead.
Question 559
At Stonebridge Research, a technician working in cloud and desktop infrastructure review identifies this issue: A seasonal ticket service needs temporary compute capacity only during sale windows. The desired outcome is to recognize elasticity as capacity adjustment to changing utilization. The customer requires a verified fix rather than a guess based on one symptom. What should support monitor to catch a recurrence of the same failure?
- Monitor VDI broker availability, logon time and display latency
- Monitor cross-environment data flow and newly unauthorized public exposure
- Monitor cross-tenant access alerts and changes to service tenancy configuration
- Monitor scaling oscillation, capacity limits and cost spikes
Explanation
Correct Answer
D:
Monitor scaling oscillation, capacity limits and cost spikes. It tracks recurrence of the specific failure mechanism over time. The relevant observation is that a seasonal ticket service needs temporary compute capacity only during sale windows. The support goal is to recognize elasticity as capacity adjustment to changing utilization; this monitor action specifically addresses cloud elasticity versus fixed provisioning without confusing a different subsystem.
Incorrect Answers
A:
Monitor VDI broker availability, logon time and display latency. 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 cloud elasticity versus fixed provisioning instead.
B:
Monitor cross-environment data flow and newly unauthorized public exposure. 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.
C:
Monitor cross-tenant access alerts and changes to service tenancy configuration. 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.
Question 560
During Stonebridge Research's cloud and desktop infrastructure review, the technician encounters this condition: A seasonal ticket service needs temporary compute capacity only during sale windows. The desired outcome is to recognize elasticity as capacity adjustment to changing utilization. The customer requires a verified fix rather than a guess based on one symptom. Which configuration or repair action best addresses the stated requirement?
- Describe the combination as hybrid cloud rather than calling it wholly public or wholly private
- Deploy a supported VDI solution with centrally hosted desktop sessions
- Configure supported autoscaling rules with limits for traffic-driven elasticity
- Select dedicated hosting only when explicitly required and otherwise verify tenant isolation controls
Explanation
Correct Answer
C:
Configure supported autoscaling rules with limits for traffic-driven elasticity. It corrects the documented cause using the compatible technology and support constraints. The relevant observation is that a seasonal ticket service needs temporary compute capacity only during sale windows. The support goal is to recognize elasticity as capacity adjustment to changing utilization; this design action specifically addresses cloud elasticity versus fixed provisioning without confusing a different subsystem.
Incorrect Answers
A:
Describe the combination as hybrid cloud rather than calling it wholly public or wholly private. 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 cloud elasticity versus fixed provisioning instead.
B:
Deploy a supported VDI solution with centrally hosted desktop sessions. 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 cloud elasticity versus fixed provisioning instead.
D:
Select dedicated hosting only when explicitly required and otherwise verify tenant isolation controls. That 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.
