CompTIA 220-1202 A+ Certification Exam: Core 2 Dumps and Practice Test Questions Set 10 Q181-200

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Q181) A user reports that their Windows 10 laptop cannot boot and displays the error message “Operating System Not Found.” Which of the following is the MOST likely cause?

A) Corrupted boot configuration or missing OS files
B) Outdated graphics driver
C) Low hard drive free space
D) Incorrect screen resolution

Answer: A) Corrupted boot configuration or missing OS files

Explanation

 The “Operating System Not Found” error is a critical startup issue that occurs when the BIOS/UEFI cannot locate a valid operating system on the boot drive. This prevents Windows from loading and typically manifests as a black screen with the error message displayed. Understanding the root cause is essential for effective troubleshooting and remediation.

Option A) is correct because this error is most commonly caused by a corrupted boot configuration, missing or damaged system files, or a failed Master Boot Record (MBR) or Boot Configuration Data (BCD). Common triggers include abrupt power loss during updates, malware infection, accidental deletion of system files, or disk corruption. To resolve this, the technician should boot the system into Windows Recovery Environment (WinRE) and use Startup Repair to automatically detect and repair boot issues. If automatic repair fails, the Command Prompt within WinRE allows the use of commands like “bootrec /fixmbr,” “bootrec /fixboot,” “bootrec /scanos,” and “bootrec /rebuildbcd” to restore the boot sequence. Verifying BIOS/UEFI settings ensures that the system attempts to boot from the correct drive using the correct interface, and running CHKDSK checks for physical drive corruption. In cases where the OS files are severely damaged, a system restore or OS reinstallation may be necessary, preserving user data if possible.

Option B) Outdated graphics drivers can cause visual anomalies or screen flickering after Windows loads, but they do not prevent the operating system from being detected at boot. Driver issues are post-boot problems rather than startup blockers.

Option C) Low hard drive free space may affect performance, slow updates, or prevent temporary files from being created, but it does not prevent Windows from booting entirely.

Option D) Incorrect screen resolution affects display output but does not impact boot operations or the detection of the operating system.

After repairing the boot configuration and ensuring BIOS/UEFI settings are correct, the system should boot normally. Technicians should create regular backups, maintain restore points, and monitor disk health to prevent recurrence. Proper troubleshooting ensures that the OS can boot reliably while protecting user data and maintaining system stability.

Q182) A user reports that their Windows 10 laptop freezes during startup, and Task Manager indicates high CPU and disk usage by the process “TiWorker.exe.” Which of the following is the MOST likely cause?

A) Windows Modules Installer Worker performing updates
B) Malware infection
C) Failing hard drive
D) Outdated network driver

Answer: A) Windows Modules Installer Worker performing updates

Explanation:

 The “TiWorker.exe” process, also known as Windows Modules Installer Worker, is a legitimate Windows service responsible for installing, modifying, or removing updates and optional components. High CPU and disk usage during startup, particularly when TiWorker.exe is active, can make the system appear frozen or unresponsive. This behavior is normal during updates or background servicing tasks.

Option A) is correct because the high resource usage is typically associated with Windows installing cumulative updates, feature updates, or performing system maintenance. During this time, TiWorker.exe validates file integrity, installs updates, and ensures the system is up to date. Technicians should allow the process to complete while monitoring Task Manager and Event Viewer for progress. If usage remains unusually high for an extended period, running “DISM /Online /Cleanup-Image /RestoreHealth” and “sfc /scannow” can repair corrupted system files. Administrators can also schedule updates during off-peak hours to minimize user disruption.

Option B) Malware can cause high CPU or disk usage, but the specific identification of TiWorker.exe in Task Manager indicates a legitimate process. While a malware scan is advisable, malware is unlikely to be the cause in this scenario.

Option C) A failing hard drive can slow performance, cause repeated file errors, and trigger system crashes. Signs of a failing drive include unusual noises, corrupted files, or frequent BSODs unrelated to TiWorker.exe activity.

Option D) An outdated network driver affects connectivity and online performance but does not increase CPU or disk usage associated with system update processes.

Once updates complete, system performance typically returns to normal. Proper management of Windows updates, combined with monitoring system health, ensures stability and reduces user confusion regarding temporary performance slowdowns. Understanding the role of TiWorker.exe is essential to avoid unnecessary hardware replacements or misdiagnosis.

Q183) A user reports that their Windows 10 laptop screen flickers when multiple applications are open, particularly those using hardware acceleration. Which of the following is the MOST likely cause?

A) Outdated or incompatible display driver
B) Low hard drive free space
C) Incorrect screen resolution
D) Disabled firewall

Answer: A) Outdated or incompatible display driver

Explanation:

Intermittent screen flickering, especially when multiple applications or graphics-intensive programs are open, is often caused by outdated, corrupted, or incompatible display drivers. The graphics driver facilitates communication between the operating system and the GPU, translating application instructions into visual output. Driver failures or conflicts can manifest as flickering, screen tearing, or temporary blackouts.

Option A) is correct because updating or reinstalling the display driver resolves most flickering issues. Technicians should inspect Device Manager for warning symbols under “Display adapters,” verify driver compatibility with recent Windows updates, and obtain the latest drivers from the GPU manufacturer’s website. If flickering began after a recent update, rolling back the driver may restore stability. Disabling hardware acceleration in affected applications can serve as a temporary solution. Ensuring that Windows updates are current helps maintain driver compatibility and system stability.

Option B) Low hard drive free space can cause overall system sluggishness but does not produce dynamic visual flickering. Disk-related issues manifest as slow performance or update failures rather than display anomalies.

Option C) Incorrect screen resolution can distort images but does not cause intermittent flickering. Resolution issues are static and predictable, unlike driver-induced visual problems.

Option D) Disabled firewall affects network security but has no impact on GPU performance or rendering.

After updating drivers and making adjustments in application settings, technicians should test multiple programs to verify the resolution. Monitoring GPU usage and temperature ensures that hardware remains healthy. Proper driver management maintains stable visual output, prevents disruptions, and improves the user experience. Educating users about avoiding unsupported applications or improper driver updates further minimizes recurrence risk.

Q184) A user reports that their Windows 10 laptop cannot connect to a Wi-Fi network, although other devices on the same network function correctly. Which of the following should the technician check FIRST?

A) Wireless adapter driver
B) ISP service outage
C) Physical Ethernet cable
D) Screen resolution

Answer: A) Wireless adapter driver

Explanation:

When a single device cannot connect to Wi-Fi while other devices operate normally, the issue is typically specific to the affected device. The wireless adapter and its driver are responsible for scanning for networks, authenticating connections, and maintaining stable wireless connectivity. Outdated, corrupted, or incompatible drivers can prevent successful connections even if the network is functioning correctly.

Option A) is correct because verifying the wireless adapter driver addresses the primary cause. The technician should check Device Manager for warning indicators, update the driver from the manufacturer’s website, and ensure power management settings do not disable the adapter during idle states. Testing the adapter on another network helps determine if the problem is device-specific. Additional troubleshooting may include resetting the network stack using “netsh” commands, running the Windows Network Troubleshooter, and verifying IP configuration and authentication settings.

Option B) ISP outages affect all devices on the network. Since other devices are functioning correctly, the ISP is unlikely to be the cause.

Option C) Physical Ethernet cables affect wired connections and are irrelevant for Wi-Fi troubleshooting.

Option D) Screen resolution affects display output but does not influence network connectivity.

After ensuring the driver is functional and configuration settings are correct, technicians should verify that the device obtains a valid IP address and can communicate with the router. Proper driver management ensures reliable Wi-Fi connectivity, minimizes downtime, and maintains productivity.

Q185) A user reports that their Windows 10 laptop battery drains rapidly, even when idle, and Task Manager shows multiple background processes consuming high CPU. Which of the following is the MOST likely cause?

A) Excessive background applications consuming CPU resources
B) Low hard drive free space
C) Disabled firewall
D) Incorrect screen resolution

Answer: A) Excessive background applications consuming CPU resources

Explanation:

 Rapid battery drain on idle laptops is frequently caused by background processes consuming significant CPU resources. Programs such as cloud synchronization clients, indexing services, update agents, and maintenance utilities operate without user interaction. High CPU usage leads to increased power consumption, heat generation, and accelerated battery depletion.

Option A) is correct because identifying and managing CPU-intensive background processes resolves the problem. Task Manager can identify applications consuming excessive CPU. The technician should disable unnecessary startup programs, enable Battery Saver mode, and configure power plans to reduce CPU activity during idle periods. Educating users to close resource-intensive applications when not in use is important for maintaining battery longevity.

Option B) Low hard drive space affects performance but does not directly cause high CPU usage or rapid battery drain.

Option C) Disabled firewall impacts network security but does not influence CPU activity or energy consumption.

Option D) Incorrect screen resolution affects visual output but does not significantly increase CPU usage or battery consumption.

Additional measures include scheduling maintenance tasks while plugged in, uninstalling unnecessary software, and monitoring CPU usage over time. Proper management of background processes ensures longer battery life, reduced heat, and optimal system responsiveness. Educating users on efficient application usage further minimizes unnecessary energy consumption and enhances overall device longevity.

Q186) A user reports that their Windows 10 laptop cannot boot and displays a black screen with a blinking cursor after a failed update. Which of the following should the technician attempt FIRST?

A) Windows Recovery Environment (WinRE) Startup Repair
B) Device Manager
C) Disk Cleanup
D) Task Scheduler

Answer: A) Windows Recovery Environment (WinRE) Startup Repair

Explanation:

When a Windows 10 laptop fails to boot after an update and shows a black screen with a blinking cursor, the system cannot locate or properly load the boot files. This is often caused by a failed update, corrupted Boot Configuration Data (BCD), missing or damaged system files, or changes in storage configuration. Windows Recovery Environment (WinRE) provides an integrated environment designed to troubleshoot and repair such startup issues without performing a full reinstall of the operating system.

Option A) is correct because WinRE’s Startup Repair tool is specifically designed to automatically detect and repair problems preventing Windows from booting. Startup Repair scans for corrupted boot files, misconfigured boot sectors, driver conflicts, and other issues that can interrupt the normal boot process. If automatic repair fails, the Command Prompt within WinRE allows the technician to manually repair boot files using commands such as “bootrec /fixmbr,” “bootrec /fixboot,” “bootrec /scanos,” and “bootrec /rebuildbcd.” Additionally, System Restore can revert the system to a previous state before the failed update, preserving user data while restoring operational stability. Safe Mode provides a minimal environment for diagnosing driver or software conflicts, while advanced recovery options allow for image recovery or factory reset if necessary.

Option B) Device Manager cannot be accessed if Windows does not boot. It is used to manage drivers and hardware on functioning systems and is therefore not applicable in this scenario.

Option C) Disk Cleanup removes temporary files and frees storage space but does not resolve boot failures or restore missing system files. It is a maintenance tool rather than a repair utility for critical startup issues.

Option D) Task Scheduler automates tasks on a functioning system. Scheduled tasks cannot repair a non-booting system and therefore cannot address the black screen issue.

Technicians should follow a structured approach: first, boot into WinRE, attempt Startup Repair, and if that fails, proceed with System Restore or Command Prompt repair commands. Verifying BIOS/UEFI settings ensures the correct boot device is selected. Regular backups, creation of restore points, and careful monitoring of update installation processes can prevent recurrence. Effective use of WinRE restores system functionality, safeguards data, and minimizes downtime. Proper recovery processes reduce the likelihood of repeated update failures and maintain operational continuity.

Q187) A user reports that their Windows 10 laptop cannot print to a network printer, although other devices on the same network print successfully. Which of the following should the technician check FIRST?

A) User permissions on the printer
B) Printer toner levels
C) Hard drive free space
D) BIOS version

Answer: A) User permissions on the printer

Explanation:

When a single user cannot print to a shared network printer while other devices can, the most common cause is insufficient user permissions. Windows controls access to shared printers using security settings that define which users or groups can print, manage printer properties, or view the printer on the network. Without proper permissions, a user cannot send print jobs even if the printer and network are functioning correctly.

Option A) is correct because verifying and adjusting user permissions directly addresses this issue. The technician should access the printer properties on the host computer or print server, navigate to the Security tab, and ensure that the affected user has the “Print” permission. If necessary, the user can be added to a group with printing privileges. After permissions are updated, the user may need to reconnect to the printer or restart the Print Spooler service to apply the changes. Verifying permissions ensures secure access while maintaining operational efficiency.

Option B) Printer toner levels affect print quality but do not prevent printing. A user with low toner can still submit print jobs; the output will only be faint or incomplete.

Option C) Low hard drive free space can slow system performance or cause issues with spooling large print jobs, but it does not prevent printing for a single user while others are unaffected. Only extreme low disk space affecting the Print Spooler could cause failures.

Option D) BIOS version does not influence printer access. Printing permissions and network connectivity are controlled by the operating system, not firmware.

After permissions are verified, the technician should confirm that the correct printer driver is installed, the printer is online, and network connectivity is functional. Proper management of user permissions ensures secure, reliable printing, minimizes support requests, and maintains workflow continuity. Educating users about permissions prevents recurring printing issues and enhances network security.

Q188) A user reports that their Windows 10 laptop frequently displays “Low Disk Space” warnings on the C: drive. Which of the following should the technician perform FIRST?

A) Delete unnecessary files and run Disk Cleanup
B) Upgrade the CPU
C) Update the graphics driver
D) Replace the RAM

Answer: A) Delete unnecessary files and run Disk Cleanup

Explanation:

 “Low Disk Space” warnings indicate that the system drive, typically C:, is nearly full. Windows requires adequate free space for temporary files, page files, system restore points, and updates. Operating with limited free space can cause performance degradation, failed updates, and application errors.

Option A) is correct because removing unnecessary files and running Disk Cleanup immediately addresses the problem. Disk Cleanup removes temporary files, system cache, old Windows Update files, and contents of the Recycle Bin. Uninstalling unused applications and moving large files to external or cloud storage further improves available space. Enabling Storage Sense allows Windows to automatically manage and clean up files over time. Technicians should ensure that at least 10–15% of the system drive remains free for optimal system performance and future updates.

Option B) Upgrading the CPU increases processing power but does not provide additional storage.

Option C) Updating the graphics driver improves display performance but does not free storage space.

Option D) Replacing RAM increases multitasking capability but does not affect available storage.

Long-term solutions include upgrading to a larger SSD or implementing data archiving policies. Proper disk space management ensures stable system performance, successful updates, and reduced risk of application errors. Educating users about maintaining sufficient free space prevents recurring low disk space warnings and enhances overall system efficiency.

Q189) A user reports that their Windows 10 laptop cannot connect to a VPN, even though other devices on the same network connect successfully. Which of the following should the technician check FIRST?

A) Firewall or antivirus settings blocking VPN traffic
B) ISP service status
C) Physical Ethernet cable
D) Screen resolution

Answer: A) Firewall or antivirus settings blocking VPN traffic

Explanation:

When a VPN works on other devices but fails on a Windows 10 laptop, the issue is usually local to the device. Firewalls or antivirus software may block VPN protocols, ports, or client applications, preventing successful connections. These security restrictions are a common cause of VPN connectivity problems affecting a single device.

Option A) is correct because firewall or antivirus restrictions are often the root cause. The technician should temporarily disable security software to test VPN connectivity. If the VPN works when security software is disabled, it confirms the firewall or antivirus is blocking traffic. The technician can then configure exceptions, allow the VPN client through the firewall, or open the necessary ports while maintaining overall security. Additionally, verifying VPN client configuration, ensuring updated software, and checking user credentials help maintain a secure connection.

Option B) ISP outages affect all devices. Since other devices can connect successfully, the ISP is not the cause.

Option C) Physical Ethernet cables only affect wired connections and are irrelevant for Wi-Fi VPN connections.

Option D) Screen resolution impacts display output but does not affect network connectivity.

After configuring firewall and antivirus settings correctly, the technician should test the VPN connection and monitor logs to ensure stability. Proper configuration ensures secure VPN access without compromising device security or user productivity. Regular monitoring and update management prevent recurring connection issues.

Q190) A user reports that their Windows 10 laptop battery drains rapidly, even when idle, and Task Manager shows multiple background processes consuming high CPU. Which of the following is the MOST likely cause?

A) Excessive background applications consuming CPU resources
B) Low hard drive free space
C) Disabled firewall
D) Incorrect screen resolution

Answer: A) Excessive background applications consuming CPU resources

Explanation

 Rapid battery drain during idle periods is commonly caused by background applications consuming significant CPU resources. Programs such as cloud synchronization clients, indexing services, update agents, and maintenance utilities can run without user interaction. High CPU usage increases power consumption, generates heat, and accelerates battery depletion.

Option A) is correct because identifying and managing CPU-intensive background processes resolves the issue. Task Manager can identify applications consuming excessive CPU. The technician should disable unnecessary startup programs, enable Battery Saver mode, and configure power plans to reduce CPU activity during idle periods. Educating users to close resource-heavy applications when not needed helps maintain battery longevity.

Option B) Low hard drive free space affects system performance but does not directly cause high CPU usage or rapid battery drain.

Option C) Disabled firewall impacts network security but does not affect CPU activity or energy consumption.

Option D) Incorrect screen resolution affects display output but does not significantly increase CPU usage or power consumption.

Additional measures include scheduling maintenance tasks while the laptop is plugged in, uninstalling unnecessary software, and monitoring CPU usage patterns. Proper management of background processes ensures longer battery life, reduced heat, and optimal system responsiveness. Educating users about efficient application usage reduces unnecessary energy consumption and improves overall device longevity.

Q191) A user reports that their Windows 10 laptop cannot boot and displays the blue screen error code “0x0000007B.” Which of the following is the MOST likely cause?

A) Boot device not accessible
B) Outdated graphics driver
C) Low hard drive free space
D) Incorrect screen resolution

Answer: A) Boot device not accessible

Explanation

 The blue screen error code “0x0000007B,” also known as INACCESSIBLE_BOOT_DEVICE, occurs when Windows cannot access the system partition during the startup process. This prevents the operating system from loading and typically appears as a blue screen error or black screen with a blinking cursor. The cause of this error usually relates to issues with the storage controller, boot configuration, or hardware. Understanding the underlying causes is critical for a technician to implement an effective resolution.

Option A) is correct because inaccessible boot devices are the primary reason for this error. Causes include switching the SATA operation mode in BIOS/UEFI between IDE, AHCI, or RAID without updating drivers, corruption of the Master Boot Record (MBR) or Boot Configuration Data (BCD), and physical drive failures. The technician should first verify the BIOS/UEFI settings to ensure the correct drive is selected as the boot device. If the drive appears correctly, booting into Windows Recovery Environment (WinRE) and using Startup Repair is recommended. If automatic repair fails, the Command Prompt within WinRE can be used to execute commands such as “bootrec /fixmbr,” “bootrec /fixboot,” and “bootrec /rebuildbcd” to repair boot configuration. Running CHKDSK or using manufacturer-specific diagnostic tools can help identify physical drive failures. Additionally, ensuring that all necessary storage drivers are present is essential, particularly after restoring an image or migrating the OS.

Option B) Outdated graphics drivers can result in screen flickering, artifacts, or visual distortions after the OS loads, but they do not prevent Windows from accessing the boot device. Driver issues manifest post-boot rather than during the initial loading of the OS.

Option C) Low hard drive free space can affect performance and prevent updates or the creation of temporary files, but it does not trigger an INACCESSIBLE_BOOT_DEVICE error. Disk space issues typically result in slow system behavior or failed updates rather than preventing the OS from booting.

Option D) Incorrect screen resolution affects the display output but does not interfere with the boot process or detection of the operating system. Resolution-related issues are cosmetic rather than functional.

After repairing the boot device and verifying BIOS/UEFI settings, the system should boot normally. Technicians should implement regular backups, restore points, and drive health monitoring to prevent recurrence. Addressing boot configuration issues systematically ensures data integrity, restores system functionality, and minimizes downtime. Proper identification of hardware and driver issues is key to providing a reliable, long-term solution.

Q192) A user reports that their Windows 10 laptop frequently freezes during startup, and Task Manager indicates high CPU and disk usage by “TiWorker.exe.” Which of the following is the MOST likely cause

A) Windows Modules Installer Worker performing updates
B) Malware infection
C) Failing hard drive
D) Outdated network driver

Answer: A) Windows Modules Installer Worker performing updates

Explanation:

The process “TiWorker.exe,” also known as Windows Modules Installer Worker, is a legitimate Windows service responsible for managing system updates. High CPU and disk usage by TiWorker.exe during startup can make the system appear frozen or unresponsive. Understanding the purpose and behavior of this process is essential for accurate troubleshooting.

Option A) is correct because TiWorker.exe frequently consumes system resources when Windows is installing cumulative updates, feature updates, or performing background maintenance tasks. During this period, it verifies file integrity, installs updates, and ensures the system remains current. Technicians should monitor Task Manager to confirm that TiWorker.exe is the resource-intensive process. Allowing the process to complete often resolves temporary performance issues. In cases where high usage persists abnormally, running “DISM /Online /Cleanup-Image /RestoreHealth” and “sfc /scannow” can repair corrupted system files. Scheduling updates during off-peak hours reduces disruption and minimizes the impact on system performance.

Option B) Malware can cause high CPU or disk usage; however, the identification of TiWorker.exe as the active process indicates legitimate system activity. Malware is unlikely to be the primary cause in this scenario, though running a full system scan is prudent for comprehensive troubleshooting.

Option C) A failing hard drive can slow system performance, cause file corruption, and lead to repeated crashes, but it is not specifically linked to TiWorker.exe activity. Symptoms of a failing drive include unusual noises, corrupted files, or system instability across multiple processes.

Option D) An outdated network driver affects connectivity and online performance but does not increase CPU or disk usage associated with update processes.

Once updates are complete, performance should normalize. Technicians should ensure that automatic updates are configured properly, monitor system health, and educate users about expected temporary performance impacts during update installation. Understanding the role of TiWorker.exe prevents misdiagnosis, unnecessary hardware replacement, and provides reassurance to users experiencing temporary slowdowns. Proper management of updates ensures stability, security, and efficient system operation.

Q193) A user reports that their Windows 10 laptop screen flickers intermittently when opening multiple applications. Which of the following is the MOST likely cause?

A) Outdated or incompatible display driver
B) Low hard drive free space
C) Incorrect screen resolution
D) Disabled firewall

Answer: A) Outdated or incompatible display driver

Explanation:

Intermittent screen flickering, particularly when multiple applications or graphics-intensive programs are in use, is commonly caused by outdated, corrupted, or incompatible display drivers. The graphics driver acts as a mediator between Windows and the GPU, translating software instructions into visual output on the display. Conflicts or failures in this communication can result in visual anomalies such as flickering, tearing, or temporary blackouts.

Option A) is correct because updating or reinstalling the display driver resolves most flickering issues. Technicians should check Device Manager for warning symbols under “Display adapters,” ensure driver versions are compatible with recent Windows updates, and obtain drivers directly from the GPU manufacturer’s website. If flickering began after a recent driver update, rolling back to a previous stable driver version may restore display stability. Disabling hardware acceleration in affected applications provides a temporary workaround. Keeping Windows updated ensures driver compatibility and overall system stability.

Option B) Low hard drive space may impact overall system performance but does not directly cause intermittent flickering. Disk space issues typically manifest as slow performance, failed updates, or application crashes, rather than dynamic display anomalies.

Option C) Incorrect screen resolution can distort images but does not cause intermittent flickering. Resolution-related issues are static and predictable, unlike driver-induced visual problems.

Option D) Disabled firewall affects network security but does not impact GPU performance or rendering.

After updating drivers and making adjustments, technicians should test multiple applications to verify the resolution. Monitoring GPU usage and temperature ensures hardware integrity. Proper driver management and application configuration prevent flickering, maintain visual consistency, and enhance user experience. Educating users on best practices regarding driver updates and unsupported applications minimizes recurrence risk.

Q194) A user reports that their Windows 10 laptop cannot connect to a Wi-Fi network, although other devices on the same network are functioning normally. Which of the following should the technician check FIRST?

A) Wireless adapter driver
B) ISP service outage
C) Physical Ethernet cable
D) Screen resolution

Answer: A) Wireless adapter driver

Explanation:

 When a single device cannot connect to Wi-Fi while other devices operate normally, the issue is usually device-specific. The wireless network adapter and its driver are responsible for scanning networks, authenticating connections, and maintaining stable connectivity. Outdated, corrupted, or incompatible drivers can prevent successful Wi-Fi connections even if the network is functioning correctly.

Option A) is correct because verifying the wireless adapter driver addresses the primary cause. Technicians should check Device Manager for warning icons, update the driver from the manufacturer’s website, and ensure that power management settings do not disable the adapter during idle periods. Testing the adapter on a different network helps determine if the issue is device-specific. Additional troubleshooting steps include resetting the network stack using “netsh” commands, running the Windows Network Troubleshooter, and verifying IP configuration and authentication settings.

Option B) ISP outages affect all devices on the network. Since other devices connect successfully, the ISP is not the cause.

Option C) Physical Ethernet cables affect wired connections only and are irrelevant for Wi-Fi troubleshooting.

Option D) Screen resolution impacts display output but does not influence network connectivity.

After confirming that the driver is functional and network settings are correct, technicians should verify that the device can obtain a valid IP address and maintain stable communication with the router. Proper driver management ensures reliable Wi-Fi connectivity, reduces downtime, and maintains user productivity.

Q195) A user reports that their Windows 10 laptop battery drains rapidly, even when idle, and Task Manager shows multiple background processes consuming high CPU. Which of the following is the MOST likely cause?

A) Excessive background applications consuming CPU resources
B) Low hard drive free space
C) Disabled firewall
D) Incorrect screen resolution

Answer: A) Excessive background applications consuming CPU resources

Explanation:

Rapid battery drain on idle laptops is frequently caused by background applications consuming significant CPU resources. Programs such as cloud synchronization clients, indexing services, update agents, and maintenance utilities can operate without user interaction. High CPU usage results in increased power consumption, heat generation, and accelerated battery depletion.

Option A) is correct because identifying and managing CPU-intensive background processes resolves the issue. Task Manager can be used to identify applications consuming excessive CPU. The technician should disable unnecessary startup programs, enable Battery Saver mode, and configure power plans to reduce CPU activity during idle periods. Educating users to close resource-heavy applications when not in use helps maintain battery longevity.

Option B) Low hard drive free space affects performance but does not directly cause high CPU usage or rapid battery drain.

Option C) Disabled firewall affects network security but does not influence CPU activity or power consumption.

Option D) Incorrect screen resolution affects visual output but does not significantly increase CPU usage or battery consumption.

Additional measures include scheduling maintenance tasks while the laptop is plugged in, uninstalling unnecessary software, and monitoring CPU usage patterns. Proper management of background processes ensures longer battery life, reduced heat, and optimal system responsiveness. Educating users on efficient application usage reduces unnecessary energy consumption and enhances device longevity.

Q196) A user reports that their Windows 10 laptop displays a “Blue Screen of Death” (BSOD) with the error code “0x00000050” shortly after logging in. Which of the following is the MOST likely cause?

A) Faulty or incompatible RAM
B) Outdated graphics driver
C) Low hard drive free space
D) Incorrect screen resolution

Answer: A) Faulty or incompatible RAM

Explanation:

The blue screen error code “0x00000050,” also known as PAGE_FAULT_IN_NONPAGED_AREA, typically occurs when Windows attempts to access a portion of memory that is invalid, missing, or inaccessible. This type of error points directly to memory-related issues, which can be caused by faulty RAM modules, incompatible memory configurations, or software attempting to access protected memory areas. Understanding the underlying cause allows technicians to apply the correct remediation.

Option A) is correct because faulty or incompatible RAM is the most common cause of this error. Memory errors can result from physical defects in RAM chips, incorrect voltage or timing settings in BIOS/UEFI, or mixing different types of memory modules that are not supported together. To diagnose, the technician can use Windows Memory Diagnostic or third-party tools such as MemTest86 to test RAM integrity. If errors are detected, replacing the faulty module or adjusting BIOS settings often resolves the problem. In some cases, reseating RAM modules or switching slots can temporarily restore stability, but permanent resolution requires proper replacement or configuration.

Option B) Outdated graphics drivers can cause visual glitches, flickering, or application crashes, but they do not typically trigger PAGE_FAULT_IN_NONPAGED_AREA errors. Driver issues manifest post-boot rather than during memory allocation.

Option C) Low hard drive free space may lead to slow performance, failed updates, or application errors, but it does not directly cause memory access violations leading to a BSOD.

Option D) Incorrect screen resolution affects display output but has no impact on memory access or system stability.

Once the faulty RAM is identified and replaced or reconfigured, the BSOD should no longer appear. Technicians should ensure that memory modules are compatible with the motherboard and run at appropriate speeds and voltages. Regular system monitoring, stress testing, and verification of memory integrity can prevent future occurrences. Proper diagnosis of memory issues preserves system stability, safeguards user data, and minimizes downtime.

 

Q197) A user reports that their Windows 10 laptop is running extremely slowly, and Task Manager shows high CPU usage by multiple background processes, including “SearchIndexer.exe.” Which of the following is the MOST likely cause?

A) Excessive indexing of files
B) Malware infection
C) Failing hard drive
D) Disabled firewall

Answer: A) Excessive indexing of files

Explanation:

The process “SearchIndexer.exe” is responsible for indexing files and folders in Windows to improve search performance. When the indexer consumes high CPU or disk resources, the system may appear sluggish, especially on laptops with limited processing power or storage bandwidth. Understanding the behavior of indexing services is essential for effective troubleshooting.

Option A) is correct because excessive indexing is a common cause of high CPU usage and slow system performance. Windows Indexing Service can consume significant resources when it processes a large number of files or directories. The technician can mitigate this by adjusting indexing options in Control Panel to exclude unnecessary folders, temporarily pausing indexing, or rebuilding the index during off-peak hours. In addition, configuring Windows Search to run with lower priority or during idle periods ensures minimal disruption. Educating users about the impact of storing large numbers of files in indexed locations helps maintain system performance.

Option B) Malware can cause high CPU usage, but Task Manager identifies “SearchIndexer.exe,” a legitimate system process. Malware is unlikely unless unknown or suspicious processes are also present. Running a full antivirus scan is prudent for comprehensive system health verification.

Option C) A failing hard drive can lead to slow performance, repeated file errors, and system crashes, but the high CPU usage is specific to the indexing process rather than hardware failure. Signs of a failing drive include unusual noises, corrupted files, and random system crashes across multiple processes.

Option D) A disabled firewall impacts network security but does not influence CPU or disk usage associated with system indexing services.

After adjusting indexing options and limiting resource usage, system performance should improve. Technicians should monitor CPU and disk utilization over time and educate users about optimizing storage organization to prevent excessive indexing. Proper configuration of indexing services enhances performance, ensures efficient search functionality, and reduces unnecessary CPU load.

 

Q198) A user reports that their Windows 10 laptop cannot connect to a Wi-Fi network, even though other devices on the same network are functioning normally. Which of the following should the technician check FIRST?

A) Wireless adapter driver
B) ISP service outage
C) Physical Ethernet cable
D) Screen resolution

Answer: A) Wireless adapter driver

Explanation:

When a single device cannot connect to Wi-Fi while other devices function correctly, the issue is often local to that device. The wireless network adapter and its driver handle network scanning, authentication, and connection stability. Driver problems, including outdated, corrupted, or incompatible drivers, are common causes of connectivity issues.

Option A) is correct because checking and updating the wireless adapter driver is the first logical step. The technician should verify Device Manager for warning indicators, download the latest drivers from the manufacturer’s website, and ensure that power management settings do not disable the adapter during idle periods. Testing connectivity on a different network helps determine whether the problem is device-specific. Additional troubleshooting includes resetting the TCP/IP stack using “netsh” commands, running the Windows Network Troubleshooter, and confirming IP configuration and authentication settings.

Option B) ISP outages affect all devices. Since other devices connect successfully, the ISP is unlikely to be the cause.

Option C) Physical Ethernet cables affect wired connections only and are irrelevant for Wi-Fi troubleshooting.

Option D) Screen resolution affects display output but has no impact on wireless connectivity.

After verifying the driver and network configuration, the technician should ensure that the device can obtain a valid IP address and maintain stable communication with the router. Proper driver management ensures reliable Wi-Fi connectivity, reduces downtime, and maintains productivity. Educating users about keeping drivers up to date prevents recurring connection issues.

Q199) A user reports that their Windows 10 laptop battery drains rapidly, even when idle, and Task Manager shows multiple background processes consuming high CPU. Which of the following is the MOST likely cause?

A) Excessive background applications consuming CPU resources
B) Low hard drive free space
C) Disabled firewall
D) Incorrect screen resolution

Answer: A) Excessive background applications consuming CPU resources

Explanation:

 Rapid battery drain on idle laptops is frequently caused by background processes consuming significant CPU resources. Applications such as cloud synchronization tools, indexing services, update agents, and maintenance utilities can operate without user interaction. High CPU usage increases power consumption, generates heat, and accelerates battery depletion.

Option A) is correct because identifying and managing CPU-intensive background processes resolves the issue. Task Manager can be used to identify applications consuming excessive CPU. The technician should disable unnecessary startup programs, enable Battery Saver mode, and configure power plans to reduce CPU activity during idle periods. Educating users to close resource-heavy applications when not in use is crucial for maintaining battery longevity.

Option B) Low hard drive free space affects performance but does not directly cause high CPU usage or rapid battery drain.

Option C) Disabled firewall impacts network security but does not influence CPU activity or energy consumption.

Option D) Incorrect screen resolution affects display output but does not significantly increase CPU usage or battery consumption.

Additional measures include scheduling maintenance tasks while the laptop is plugged in, uninstalling unnecessary software, and monitoring CPU usage patterns. Proper management of background processes ensures longer battery life, reduced heat, and optimal system responsiveness. Educating users on efficient application usage minimizes unnecessary energy consumption and prolongs device lifespan.

Q200) A user reports that their Windows 10 laptop cannot print to a network printer, although other devices on the same network function normally. Which of the following should the technician check FIRST

A) User permissions on the printer
B) Printer toner levels
C) Hard drive free space
D) BIOS version

Answer: A) User permissions on the printer

Explanation:

When a single user cannot print to a shared network printer while others can, the issue is typically related to user permissions. Windows manages access to shared printers using security settings that define which users or groups can print, manage printer properties, or view the printer on the network. Without proper permissions, a user cannot submit print jobs even if the printer and network are functional.

Option A) is correct because verifying user permissions addresses the problem directly. The technician should access the printer properties on the host machine or print server, navigate to the Security tab, and ensure that the affected user has the “Print” permission. If necessary, the user can be added to a group with printing privileges. After modifying permissions, the user may need to reconnect to the printer or restart the Print Spooler service to apply the changes. Proper permission management ensures secure and reliable printing while minimizing support requests.

Option B) Printer toner levels affect print quality but do not prevent printing. A user with low toner can still submit jobs; the output may only be faint or incomplete.

Option C) Low hard drive free space may impact performance or spooling of large print jobs but does not prevent printing for a single user when other users are unaffected.

Option D) BIOS version has no effect on printer access. Printing is controlled by the operating system and network configuration rather than firmware.

After verifying permissions, the technician should ensure the correct driver is installed, the printer is online, and network connectivity is functioning. Proper permission management, combined with driver and network verification, ensures reliable printing operations and maintains workflow continuity. Educating users about permissions prevents recurring printing issues and enhances network security.