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Question 181
A user reports that their laptop battery is draining unusually fast despite not running high-demand applications. After checking, you notice the battery health shows 60% capacity, and the device has been in service for over three years. What is the most likely cause of the issue?
A) New software installation consuming background resources
B) Aging lithium-ion battery nearing the end of its lifecycle
C) Malware infection slowing the system
D) Incorrect BIOS settings affecting power management
Answer: B
Explanation:
When a laptop battery shows significantly reduced capacity over time, the most probable cause is battery degradation due to aging. Lithium-ion batteries, which are standard in modern laptops, typically last between 2 to 4 years or 300–500 full charge cycles. As these batteries age, their ability to hold charge diminishes, leading to faster drainage even under normal usage conditions. In this scenario, the battery health at 60% clearly indicates it is past its optimal performance, making replacement the best solution.
While A could contribute to minor battery drain, background processes from new software installations usually do not cause drastic reductions unless they are poorly optimized or run constant high-resource tasks. C, malware infections, can indeed consume system resources and cause heat generation, which indirectly affects battery life, but modern anti-malware tools often mitigate this, and the symptom description aligns more with natural battery aging. D, incorrect BIOS settings, could theoretically affect power management, but this is less common, especially if the system’s BIOS was unchanged for years.
Diagnosing battery issues often involves checking battery health through the operating system’s built-in diagnostic tools or manufacturer-specific utilities. Many laptops provide an exact percentage of health remaining, and a capacity below 70% usually signifies that the battery is no longer reliable for extended use. Preventative measures for prolonging battery life include avoiding deep discharge cycles, keeping the laptop cool, and not constantly charging to 100% if unnecessary.
Understanding battery behavior is essential for CompTIA 220-1202 exam candidates because it reflects the importance of hardware maintenance, troubleshooting techniques, and lifecycle management. Recognizing signs of hardware degradation and differentiating them from software-related issues is a critical skill for a technician. In practice, replacing the battery is typically a cost-effective solution that restores normal performance without further systemic investigation.
Question 182
A technician is tasked with setting up a workstation for a user who requires access to multiple virtual machines simultaneously for testing purposes. Which hardware component is most critical to ensure smooth operation of virtual machines?
A) Solid-state drive
B) Central processing unit with multiple cores
C) High-capacity monitor
D) Integrated graphics card
Answer: B
Explanation:
Virtual machines (VMs) simulate entire operating systems within a host computer, requiring substantial processing power, memory, and storage performance. The central processing unit (CPU) is a pivotal factor because each virtual machine relies on the CPU to execute instructions independently. A CPU with multiple cores allows the host system to allocate separate cores to different virtual machines, thereby preventing performance bottlenecks and ensuring concurrent operation runs smoothly. Multi-threading capability further enhances the efficiency of VM operation, especially when handling resource-intensive applications within each VM.
While A, a solid-state drive (SSD), significantly improves disk I/O speeds, reducing boot times and file access latency, it cannot compensate for insufficient processing power. SSDs accelerate storage-dependent tasks but do not manage computation-intensive tasks across multiple VMs. C, a high-capacity monitor, is beneficial for multitasking visually but has no impact on the computational performance or processing efficiency of virtual machines. D, integrated graphics, is adequate for basic display output, but most VMs perform minimal graphics processing unless running graphically demanding software; therefore, a dedicated GPU might help, but the CPU remains the critical component.
Understanding VM performance requirements is vital for CompTIA 220-1202 candidates, as troubleshooting virtualized environments combines hardware evaluation, software configuration, and resource allocation strategies. When multiple virtual machines are required for testing, the CPU often becomes a limiting factor, and technicians must ensure that the host system’s CPU architecture, core count, and clock speed are sufficient for the anticipated workload. Memory allocation and storage speed are secondary considerations, but without a powerful CPU, the virtualized environment will experience lag, errors, or crashes.
Efficient workstation setup also involves anticipating future expansion needs. High-core CPUs not only improve current VM performance but provide scalability for additional virtual machines without overhauling the system. This scenario underscores a critical concept in IT support: matching hardware resources to software demands, a recurring theme in the CompTIA A+ Core 2 exam objectives.
Question 183
A company wants to implement a security feature that ensures sensitive data on laptops remains protected even if the device is lost or stolen. Which solution provides the highest level of data protection?
A) BIOS password
B) Full disk encryption
C) Screen lock password
D) Antivirus software
Answer: B
Explanation:
Full disk encryption (FDE) is a security method that encrypts all data on a storage device, rendering it unreadable without proper authentication credentials, such as a password or encryption key. If a laptop is lost or stolen, the encrypted data remains inaccessible, protecting sensitive information from unauthorized users. Modern encryption standards, such as AES-256, provide extremely robust protection that is widely adopted in enterprise environments.
A, a BIOS password, provides a basic level of deterrence at the system startup level but can be bypassed using advanced hardware techniques, such as resetting CMOS or removing the hard drive. It only protects against unauthorized boot attempts but does not encrypt stored data, making it insufficient as a comprehensive data protection solution. C, a screen lock password, similarly prevents casual access while the system is running but offers no protection if the hard drive is removed and accessed via another device. D, antivirus software, protects against malware but does not prevent physical access or theft, and therefore does not secure data in the context of stolen hardware.
Implementing FDE aligns with CompTIA 220-1202 objectives under security concepts, emphasizing the importance of safeguarding information. Technicians must understand the trade-offs, including potential performance impacts and key management requirements. Many modern operating systems, such as Windows and macOS, include built-in FDE solutions (BitLocker and FileVault, respectively) that integrate seamlessly with existing authentication systems. Proper configuration and regular backup of encryption keys are critical to avoid data loss due to forgotten passwords or corrupted key storage.
In enterprise deployments, encryption can be combined with remote wipe capabilities and multi-factor authentication to create a multi-layered security framework. Knowledge of these technologies ensures technicians can recommend and implement solutions that provide maximum protection while maintaining usability, demonstrating the practical and theoretical skills expected from a CompTIA A+ certified professional.
Question 184
During routine maintenance, a technician notices a client’s desktop continuously displays “DRAM refresh failure” errors during POST. Which component is most likely at fault, and what is the recommended action?
A) Hard drive; perform disk repair
B) RAM modules; reseat or replace the memory
C) CPU; update microcode
D) Power supply; test voltage stability
Answer: B
Explanation:
DRAM refresh failure errors occur when the system is unable to properly refresh data stored in dynamic RAM (DRAM) modules during power-on self-test (POST). DRAM requires continuous refresh cycles to retain information. If the system reports errors in this process, it indicates that the memory modules may be faulty, improperly seated, or incompatible with the motherboard. The technician should first reseat the RAM to ensure proper electrical contact and then run memory diagnostic tests. If errors persist, replacing the memory modules is the appropriate resolution.
A, hard drives, do not produce DRAM refresh errors. Disk failures manifest through slow read/write operations, OS errors, or failed boot sequences, not memory refresh errors. C, the CPU, coordinates DRAM refresh cycles but rarely fails in a manner that specifically triggers DRAM refresh errors during POST. While rare CPU issues could theoretically impact memory communication, DRAM itself is almost always the primary suspect. D, the power supply, could contribute to unstable voltages, causing system crashes or instability, but DRAM refresh errors are more specifically linked to the memory modules themselves rather than a general power problem.
From an exam perspective, CompTIA 220-1202 emphasizes hardware troubleshooting, particularly the ability to interpret POST codes and error messages. Correctly identifying that “DRAM refresh failure” points to memory issues demonstrates a deeper understanding of system architecture, including memory timing, module installation, and motherboard compatibility. Technicians should be familiar with using diagnostic tools, such as MemTest86, to verify RAM integrity. Additionally, understanding proper anti-static precautions and module seating techniques ensures the resolution is safe and effective.
Addressing memory failures promptly not only restores system functionality but also prevents data corruption. In enterprise or personal settings, having spare compatible memory modules available can expedite repairs. This question exemplifies the type of critical thinking expected on the CompTIA A+ Core 2 exam, testing both knowledge of hardware components and practical troubleshooting methodology.
Question 185
A user complains that their desktop PC is intermittently shutting down during gaming sessions. The system has a new graphics card installed, and the issue only occurs during high-load scenarios. Which troubleshooting step should the technician perform first?
A) Update the operating system
B) Test the power supply for adequate wattage and stability
C) Reinstall the graphics driver
D) Replace the RAM modules
Answer: B
Explanation:
Intermittent shutdowns during high-load activities, such as gaming, are typically symptomatic of power supply unit (PSU) inadequacy or instability. High-performance graphics cards draw significant power under load, and if the PSU cannot provide sufficient wattage or stable voltage, the system may shut down to protect components from damage. The first troubleshooting step is to verify the PSU’s capacity and voltage stability using a power supply tester or monitoring software. Replacing the PSU with a higher-rated unit often resolves the issue.
A, updating the operating system, could fix software compatibility or driver-related bugs, but it rarely addresses hardware-induced shutdowns directly related to power demands. C, reinstalling the graphics driver, might resolve visual artifacts or driver conflicts but does not affect the fundamental electrical requirements of the GPU during gaming loads. D, replacing RAM modules, would be appropriate if the shutdowns were caused by memory errors; however, intermittent shutdowns specifically under high GPU load point more directly to power or thermal constraints rather than memory failure.
For CompTIA 220-1202 candidates, this scenario highlights the need to understand system stability, power requirements, and component interdependencies. Technicians should be proficient in calculating total system power consumption, considering CPU, GPU, drives, and peripherals. Proper troubleshooting often involves isolating potential causes: checking for overheating (CPU/GPU thermals), verifying driver and firmware updates, and testing PSU output.
High-load failures demonstrate the principle that software and hardware are tightly integrated. In gaming or computationally demanding environments, even minor deficiencies in power delivery can result in sudden shutdowns, emphasizing why technicians must validate hardware specifications against system requirements. Documenting the symptoms, testing systematically, and replacing faulty or underpowered components ensures the issue is resolved without unnecessary replacements or prolonged downtime. This approach reflects real-world best practices and exam objectives in hardware troubleshooting and preventive maintenance.
Question 186
A user reports that their laptop intermittently loses Wi-Fi connectivity, and when it reconnects, the signal is very weak even though they are in close proximity to the router. Which of the following is the most likely cause of this issue?
A) Incorrect IP configuration
B) Interference from other devices
C) Outdated operating system
D) Faulty hard drive
Answer: B
Explanation:
Intermittent Wi-Fi connectivity issues accompanied by fluctuating signal strength are most commonly caused by interference from other devices or environmental factors. Wireless signals operate on specific frequency bands, primarily 2.4 GHz and 5 GHz, and these frequencies are prone to disruption from various sources. Devices such as microwaves, cordless phones, Bluetooth devices, and neighboring Wi-Fi networks can produce overlapping signals that degrade connectivity. Unlike hardware failures or operating system issues, interference does not necessarily prevent a connection entirely but leads to unstable network behavior, packet loss, or variable signal quality.
A incorrect IP configuration can cause connectivity problems, but it typically results in a complete inability to access network resources rather than intermittent signal degradation. Misconfigured IP addresses often manifest as “limited or no connectivity” errors, and troubleshooting would involve verifying DHCP assignments, static IP setups, or subnet mismatches rather than checking for environmental interference. C outdated operating systems may cause compatibility or driver issues, but modern laptops usually retain connectivity even with older OS versions unless the wireless driver is extremely outdated. D a faulty hard drive generally does not impact Wi-Fi connectivity directly, though it could indirectly cause system slowdowns or application failures that might seem related to the network but are actually unrelated.
Diagnosing Wi-Fi interference involves tools like Wi-Fi analyzers to detect overlapping channels, adjusting router placement, changing the frequency band, or minimizing nearby devices emitting electromagnetic waves. Users can also update wireless network drivers to ensure proper channel scanning and signal optimization. Understanding the distinction between environmental interference and configuration problems is crucial for CompTIA A+ certification candidates because it illustrates real-world troubleshooting logic: isolating the root cause methodically rather than replacing hardware unnecessarily.
Question 187
A technician is preparing to install a new desktop in a client’s office. The client requires the system to be able to handle multiple high-resolution monitors with minimal lag. Which component should the technician prioritize upgrading to meet this requirement?
A) CPU
B) GPU
C) RAM
D) Network card
Answer: B
Explanation:
When supporting multiple high-resolution monitors and ensuring smooth graphical performance, the most critical component is the GPU (Graphics Processing Unit). Modern GPUs contain dedicated video memory (VRAM) and specialized processing cores designed to handle complex visual tasks, including rendering large resolutions, managing multiple displays, and accelerating graphical interfaces. While CPU and RAM also influence system performance, they primarily handle general computing tasks rather than intensive graphical output. The GPU offloads these visual processing responsibilities, preventing lag or stuttering that may occur if the system relied solely on integrated graphics.
A CPU is essential for overall system performance and multitasking, but for high-resolution multi-monitor setups, its role is secondary unless the applications being run are CPU-intensive. C RAM affects multitasking and smooth operation, particularly for large datasets or running multiple applications simultaneously, but it cannot compensate for a weak GPU when rendering complex graphics or video streams. D network card only impacts connectivity and has no bearing on graphical output or display performance.
For IT technicians and CompTIA A+ candidates, understanding the separation of responsibilities between hardware components is vital. A GPU upgrade typically involves choosing a card with adequate VRAM, sufficient output ports (HDMI, DisplayPort), and compatibility with the system’s motherboard. Additionally, software considerations such as driver installation and operating system recognition are integral to achieving optimal performance. In environments with high-resolution monitors, particularly when exceeding 1080p resolution or running multiple screens, prioritizing GPU capabilities over CPU or RAM ensures the system meets user expectations and reduces potential bottlenecks that could result in a subpar visual experience.
Question 188
A user complains that their computer takes an unusually long time to boot up, and after logging in, applications open very slowly. The technician checks and notices the hard drive is near full capacity. Which of the following actions would most effectively improve system performance?
A) Upgrade the CPU
B) Defragment the hard drive
C) Install additional RAM
D) Replace the hard drive with an SSD
Answer: D
Explanation:
When a system experiences slow boot times and sluggish application launches, particularly when the storage drive is near capacity, replacing a traditional HDD (Hard Disk Drive) with an SSD (Solid State Drive) provides the most noticeable performance improvement. SSDs use flash memory instead of spinning platters, offering drastically faster read and write speeds. This results in quicker boot sequences, faster application launches, and improved overall system responsiveness. While defragmenting a traditional HDD can offer modest performance gains, it does not match the speed improvements of an SSD and has no effect on flash-based drives.
A upgrading the CPU may improve general processing power, but if the storage drive is the primary bottleneck, the CPU upgrade alone will not resolve slow boot times. B defragmenting the hard drive is only relevant for HDDs and primarily helps with file fragmentation rather than underlying storage speed. C installing additional RAM can reduce reliance on virtual memory if the system is running low, but again, the slow performance caused by a near-full hard drive is predominantly related to storage latency rather than memory shortages.
SSD installation also enhances energy efficiency and reduces mechanical wear, which is beneficial for laptops. For CompTIA A+ candidates, recognizing when a storage upgrade supersedes CPU or RAM upgrades is an essential skill. This includes understanding hybrid solutions, such as SSDs combined with HDDs, and balancing cost with performance requirements. Optimizing system performance requires analyzing bottlenecks comprehensively, including storage, memory, processing power, and software configuration, rather than assuming a single component is always the root cause.
Question 189
A technician is called to a home office where the printer is not functioning. The user mentions that the printer works intermittently, and the cable connections appear secure. Which troubleshooting step should the technician perform next?
A) Replace the printer
B) Check the printer driver installation
C) Reboot the router
D) Upgrade the computer’s operating system
Answer: B
Explanation:
Intermittent printer functionality is often caused by driver-related issues. Printer drivers act as intermediaries between the computer and the printer hardware, translating print commands into a format the printer can interpret. If the driver is missing, outdated, or corrupted, the printer may fail to respond consistently, even when cables are properly connected. Checking and reinstalling or updating the printer driver ensures the computer communicates correctly with the printer and supports all required features, particularly for multi-function printers.
A replacing the printer is unnecessary unless hardware diagnostics indicate a physical failure. C rebooting the router may resolve network connectivity issues for networked printers but does not address driver-related problems that affect both USB and network printing. D upgrading the operating system may improve compatibility in some cases but is a drastic step compared to simply verifying driver integrity and versioning.
CompTIA A+ professionals must approach printer troubleshooting methodically: verifying physical connections, confirming the printer is powered on, checking software and drivers, and testing printing from multiple applications. Understanding the hierarchy of troubleshooting—hardware first, followed by software, network, and driver checks—is critical for efficient problem resolution. Additionally, modern printers often require software utilities or firmware updates, which can influence functionality, and awareness of these requirements allows technicians to reduce unnecessary replacements and increase customer satisfaction. Effective troubleshooting requires balancing knowledge of hardware limitations with software dependencies to isolate the underlying cause of intermittent malfunctions.
Question 190
A user reports that their laptop battery is draining unusually fast. Upon inspection, the technician notices multiple background processes consuming significant CPU and RAM resources. Which of the following actions would best improve battery life?
A) Replace the battery with a higher-capacity model
B) Close unnecessary background processes
C) Upgrade the laptop’s hard drive to an SSD
D) Increase the screen brightness
Answer: B
Explanation:
Excessive background processes can cause a laptop’s CPU and RAM to remain highly active, consuming power unnecessarily and reducing battery life. By closing unnecessary applications and background processes, the system workload decreases, allowing the CPU to enter low-power states and the RAM usage to stabilize. This action directly reduces power consumption and prolongs battery life. Monitoring tools and system task managers are useful for identifying resource-hungry processes that may include auto-updating software, background synchronization, or poorly optimized applications.
A replacing the battery with a higher-capacity model can provide more energy storage but does not address the root cause, which is excessive resource consumption. C upgrading to an SSD reduces power usage slightly compared to a mechanical hard drive, but it does not resolve CPU-heavy processes that continuously drain the battery. D increasing screen brightness increases power consumption and would exacerbate the battery drain problem rather than improve it.
For CompTIA A+ candidates, understanding power management is critical. Effective battery optimization includes managing CPU usage, RAM allocation, display settings, and peripheral activity. Techniques such as configuring power plans, reducing background apps, and disabling nonessential services are standard practice. Diagnosing battery drain involves both hardware considerations and software monitoring, emphasizing the importance of a holistic approach. By identifying and minimizing unnecessary workload, technicians can enhance efficiency, extend battery longevity, and provide users with practical solutions that address the underlying issue rather than temporary fixes.
Question 191
A user reports that their desktop computer emits a high-pitched noise and occasionally fails to start. The technician notices that the system has recently accumulated dust inside the case. Which of the following is the most likely cause of the problem?
A) Failing power supply
B) Overheating due to dust accumulation
C) Corrupted BIOS firmware
D) Outdated device drivers
Answer: B
Explanation:
When a desktop emits a high-pitched noise and has intermittent startup issues, coupled with visible dust accumulation, the most probable culprit is overheating caused by dust. Dust acts as an insulator, trapping heat around the CPU, GPU, power supply, and other critical components. This prevents proper heat dissipation, which can cause fans to spin faster to compensate, often resulting in high-frequency noises. Prolonged overheating can trigger system instability, thermal throttling, or automatic shutdowns during boot to prevent hardware damage.
A a failing power supply can also produce noises and prevent startup, but the correlation with dust and fan noise points more strongly toward thermal issues rather than electrical failure. C corrupted BIOS firmware could prevent a system from booting but would not typically produce a high-pitched noise; BIOS-related failures usually manifest as POST error codes, beeps, or failure to reach the POST screen. D outdated device drivers might cause operating system errors, crashes, or peripheral malfunction but rarely create physical noises or startup issues.
Proper troubleshooting involves first opening the case and cleaning dust using compressed air, soft brushes, or anti-static vacuum equipment, ensuring fans are unobstructed and heat sinks are correctly seated. Technicians should also check thermal paste on the CPU if the system has been overheating for extended periods. Recognizing the symptoms of dust-induced overheating is critical for CompTIA A+ candidates because it emphasizes preventative maintenance, environmental factors, and hardware monitoring. Regular cleaning reduces thermal stress, extends component life, and minimizes unexpected failures.
Question 192
A company wants to implement a secure wireless network. They require authentication for all users and encryption for data in transit. Which combination of wireless security protocols best satisfies this requirement?
A) WEP with MAC filtering
B) WPA2-Enterprise with AES encryption
C) WPA-Personal with TKIP encryption
D) Open SSID with hidden network
Answer: B
Explanation:
For a wireless network requiring robust security, the best combination is WPA2-Enterprise with AES encryption. WPA2-Enterprise uses 802.1X authentication and requires users to log in with individual credentials, providing centralized control over access. AES (Advanced Encryption Standard) ensures that data in transit is securely encrypted, making it nearly impervious to modern attacks. This combination meets the dual requirement of authentication and encryption, offering both user accountability and data confidentiality.
A WEP is outdated and highly vulnerable to attacks. MAC filtering adds a basic layer of access control but can be easily bypassed and does not encrypt traffic effectively. C WPA-Personal with TKIP encryption provides weaker security; TKIP has known vulnerabilities and lacks centralized authentication for multiple users, making it unsuitable for enterprise environments. D an open SSID with a hidden network provides minimal protection; anyone within range can attempt connections, and hiding the SSID does not prevent sniffing or data interception.
Implementing WPA2-Enterprise requires configuring a RADIUS server for authentication and properly managing certificates and user credentials. CompTIA A+ candidates must understand that encryption, authentication, and network access control are complementary security layers. Knowledge of AES versus TKIP, the limitations of WEP, and the benefits of Enterprise over Personal configurations is crucial for establishing secure wireless infrastructures. Proper implementation ensures secure communication, prevents unauthorized access, and meets compliance requirements for sensitive organizational data.
Question 193
A technician is setting up a workstation that will perform heavy database calculations. The user wants the system to handle large datasets efficiently and minimize lag. Which component upgrade will most significantly improve performance in this scenario?
A) CPU with more cores
B) Dedicated GPU
C) Larger SSD
D) Additional cooling fans
Answer: A
Explanation:
For a workstation performing database calculations, the CPU is the most critical component. A CPU with more cores allows parallel processing of complex queries and computational tasks, significantly reducing processing time for large datasets. Databases and analytics software often benefit from multi-threading capabilities, enabling simultaneous execution of multiple operations across cores. While GPUs can accelerate graphics-intensive tasks, database computation relies primarily on the CPU and memory bandwidth.
B a dedicated GPU is beneficial for rendering, video processing, or scientific simulations but offers limited advantage for traditional database calculations. C a larger SSD increases storage capacity and may slightly improve access speed, but without sufficient CPU processing power, the system will still encounter bottlenecks during intensive calculations. D additional cooling fans can prevent thermal throttling but do not directly increase computational performance unless the CPU is actively throttling due to heat.
CompTIA A+ candidates should understand workload analysis: CPU-intensive tasks, memory-intensive tasks, and storage-intensive tasks require different upgrade priorities. For database-heavy workloads, optimizing CPU performance, ensuring adequate RAM, and leveraging fast storage interfaces are essential. Knowledge of processor cores, clock speed, cache size, and instruction sets allows technicians to select systems capable of handling enterprise-grade calculations efficiently. Proper system planning ensures that hardware upgrades align with the user’s performance requirements, avoids unnecessary spending, and delivers a responsive computing environment.
Question 194
A user reports that their computer screen flickers intermittently, and the issue persists across multiple applications. The technician discovers the system uses an older graphics card and outdated display drivers. Which action will most likely resolve the problem?
A) Replace the monitor
B) Update or reinstall display drivers
C) Adjust the screen resolution
D) Upgrade the CPU
Answer: B
Explanation:
Intermittent screen flickering is often caused by driver conflicts or outdated graphics drivers, especially when paired with an older GPU. Display drivers serve as the interface between the operating system and the graphics hardware. Outdated or corrupt drivers can lead to instability, including flickering, artifacts, or crashes. Updating or reinstalling drivers ensures compatibility with the OS, correct configuration of refresh rates, and resolution handling.
A replacing the monitor is unnecessary if the issue occurs across multiple applications and persists even after testing on another system. C adjusting the screen resolution can sometimes temporarily mask flickering but does not address the underlying driver or hardware problem. D upgrading the CPU will not resolve display driver issues because the CPU is not directly responsible for rendering graphics in this context.
CompTIA A+ certification emphasizes the importance of driver management for maintaining system stability. Technicians should verify driver versions, uninstall conflicting software, and ensure compatibility with operating system updates. Additionally, understanding the relationship between the graphics card, display drivers, and monitor refresh rates allows for precise troubleshooting. Proper documentation of driver versions and testing in safe mode or using driver rollback features are recommended best practices. By addressing the software interface between hardware and OS, technicians can resolve flickering efficiently without unnecessary hardware replacement.
Question 195
A technician is troubleshooting a workstation that intermittently loses connection to a network printer. The printer works for other users on the same network. Which of the following steps should the technician take to resolve the problem?
A) Reboot the network switch
B) Delete and reinstall the printer on the affected workstation
C) Replace the printer’s network cable
D) Upgrade the printer’s firmware
Answer: B
Explanation:
When a single workstation intermittently loses connection to a network printer, while other users remain unaffected, the issue is likely related to the printer configuration or drivers on that workstation. Deleting and reinstalling the printer ensures that the system has the correct driver version, network path, and permissions. This action resolves potential driver corruption, incorrect IP mapping, or misconfigured spooler settings, all of which can disrupt connectivity.
A rebooting the network switch may resolve broader connectivity issues affecting multiple devices, but it is unnecessary if other users can print without problem. C replacing the printer’s network cable addresses hardware issues but would not affect connectivity for a single workstation only. D upgrading the printer’s firmware improves functionality and security but is unlikely to solve workstation-specific driver or configuration problems.
For CompTIA A+ candidates, this scenario emphasizes the principle of isolating problems to individual systems or shared resources. Effective troubleshooting involves verifying connectivity, checking driver versions, reinstalling or updating drivers, and ensuring correct network paths. Technicians should also verify that print spooler services are running and that there are no conflicting policies or firewall rules preventing communication. Addressing workstation-specific printer issues efficiently prevents unnecessary hardware replacement and improves overall network reliability.
Question 196
A user complains that their laptop is overheating and shutting down unexpectedly. Upon inspection, the technician notices that the cooling vents are blocked and the thermal paste on the CPU has dried out. Which of the following is the most appropriate solution to resolve this issue?
A) Replace the motherboard
B) Clean the vents and reapply thermal paste
C) Upgrade the RAM
D) Install additional software to monitor temperatures
Answer: B
Explanation:
Laptop overheating is a common issue caused by restricted airflow and inadequate thermal transfer. In this scenario, blocked cooling vents prevent hot air from exiting the laptop, while dried thermal paste reduces the efficiency of heat transfer from the CPU to the heat sink. Reapplying thermal paste restores the conductive layer between the CPU and heat sink, allowing the heat to dissipate effectively. Cleaning the vents ensures proper airflow, enabling fans to maintain the optimal operating temperature for internal components.
A replacing the motherboard is unnecessary unless there is physical damage or electrical failure. Overheating alone does not justify a full motherboard replacement. C upgrading RAM does not address thermal issues; while more memory may increase system performance, it has little impact on CPU temperature or fan operation. D installing monitoring software can help track temperatures but does not fix the root cause. Monitoring tools are useful for diagnosis but cannot resolve overheating physically.
Technicians preparing for the CompTIA A+ exam should recognize the importance of hardware maintenance in laptop troubleshooting. Key steps include cleaning dust accumulation using compressed air, ensuring fans spin freely, and replacing old or dried thermal paste on CPUs or GPUs. Additionally, verifying that the cooling system components are functioning correctly, such as heat pipes and fan operation, is critical. Understanding thermal management principles also involves recognizing environmental factors like high ambient temperatures, blocked vents due to placement on soft surfaces, or excessive multitasking that generates heat. Effective maintenance improves system longevity, prevents unexpected shutdowns, and enhances user satisfaction while reinforcing core troubleshooting skills required for certification.
Question 197
A technician is configuring a workstation that will run multiple virtual machines for testing purposes. The system must provide fast storage access and sufficient memory to handle concurrent workloads. Which combination of hardware upgrades would best meet these requirements?
A) Upgrade to a multi-core CPU and add SSD storage
B) Replace the network card and add additional cooling
C) Increase RAM and replace HDD with SSD
D) Upgrade the GPU and increase monitor resolution
Answer: C
Explanation:
Running multiple virtual machines (VMs) simultaneously demands both high memory capacity and fast storage access. Increasing RAM allows the system to allocate sufficient memory to each VM, preventing swapping to disk and reducing latency. Replacing a traditional HDD with an SSD ensures quick read and write speeds, which is critical for booting VMs and accessing large virtual disks efficiently. This combination addresses the primary bottlenecks in virtualized environments: memory limitations and storage speed.
A upgrading to a multi-core CPU helps with processing multiple VMs but without sufficient RAM and fast storage, CPU performance alone will not prevent slowdowns or delays during intensive I/O operations. B replacing the network card and adding cooling addresses network throughput and thermal stability but does not directly improve VM performance. D upgrading the GPU and monitor resolution is beneficial for graphics-intensive tasks but is irrelevant for virtual machine management, which relies more on CPU, RAM, and storage.
CompTIA A+ candidates must understand resource prioritization for virtualization. Memory management, storage throughput, and CPU processing power are interdependent when running concurrent VMs. Optimal performance requires a balance: ensuring RAM is adequate for all guest operating systems, selecting SSDs to minimize latency in storage operations, and verifying the CPU can handle multiple threads efficiently. Proper configuration also includes enabling virtualization features in BIOS/UEFI, monitoring resource utilization, and configuring VM settings to match host capabilities. Understanding these principles equips technicians to design systems capable of supporting testing environments, software development, or IT labs without encountering bottlenecks.
Question 198
A user reports that their smartphone battery drains rapidly even when idle. The technician discovers several apps running background services and push notifications. Which of the following actions would best improve battery life?
A) Disable unnecessary background apps and notifications
B) Replace the battery with a higher-capacity model
C) Perform a factory reset
D) Increase screen brightness
Answer: A
Explanation:
Smartphone battery drain is frequently caused by background apps and active push notifications that constantly consume CPU, memory, and network resources. Disabling or limiting unnecessary background processes reduces continuous workload on the CPU, decreases network polling, and minimizes battery consumption. Most mobile operating systems provide settings to control background activity, restrict apps, or adjust sync frequency, which directly improves battery longevity without hardware replacement.
B replacing the battery addresses capacity but does not resolve inefficient energy usage caused by software running in the background. C performing a factory reset may temporarily improve performance but is a drastic step that erases user data and requires reconfiguration; it is generally considered only after simpler solutions fail. D increasing screen brightness actually consumes more power and worsens battery drain, so it is counterproductive.
For CompTIA A+ certification candidates, understanding mobile device power management is critical. Key techniques include monitoring battery usage statistics, disabling unused services, adjusting sync intervals, and managing app permissions. Battery optimization also involves controlling wireless radios (Wi-Fi, Bluetooth, cellular) when not needed, enabling power-saving modes, and understanding how software inefficiencies impact energy consumption. By systematically reducing unnecessary background activity, technicians can enhance device usability, extend battery life, and educate users on best practices for maintaining optimal mobile device performance. This aligns with exam objectives emphasizing practical troubleshooting and efficiency solutions for modern mobile devices.
Question 199
A technician is troubleshooting a workstation that randomly freezes and restarts. Event logs indicate multiple thermal warnings, and inspection reveals the CPU heatsink is loose. Which of the following is the best solution to prevent further system instability?
A) Reattach the CPU heatsink and verify thermal paste
B) Upgrade to a faster CPU
C) Increase system RAM
D) Replace the motherboard
Answer: A
Explanation:
Random system freezes and unexpected restarts caused by thermal warnings indicate CPU overheating due to improper heat dissipation. A loose CPU heatsink cannot effectively transfer heat from the processor to the cooling system, leading to high temperatures and triggering automatic shutdowns to prevent permanent damage. Reattaching the heatsink correctly and verifying or reapplying thermal paste restores proper thermal conductivity, allowing the CPU to maintain safe operating temperatures and preventing instability.
B upgrading the CPU does not solve the thermal problem; installing a faster processor without ensuring adequate cooling may worsen the overheating. C increasing RAM improves multitasking capability but has no effect on CPU temperatures or system stability caused by overheating. D replacing the motherboard is unnecessary unless the socket or circuitry is damaged; the issue is localized to thermal management, not motherboard failure.
CompTIA A+ candidates must understand thermal management principles as a critical aspect of hardware maintenance. Key steps include ensuring heatsinks are firmly seated, fans operate correctly, thermal paste is applied adequately, and airflow within the case is unobstructed. Monitoring tools can provide early warnings about high temperatures, allowing preventive maintenance. Recognizing thermal issues is essential because failure to address overheating can lead to CPU damage, data corruption, and shortened component lifespan. Effective troubleshooting involves combining inspection, measurement, and corrective action to maintain system reliability and ensure long-term hardware health.
Question 200
A small office network uses a single wireless router for multiple devices. Users complain about slow internet speeds, especially during peak usage hours. Which of the following would most effectively improve network performance?
A) Upgrade the router to a dual-band model with higher throughput
B) Replace all computers’ network cards
C) Move the router to a different room
D) Enable MAC address filtering
Answer: A
Explanation:
Slow internet speeds during peak usage are commonly caused by router limitations and bandwidth congestion. Upgrading to a dual-band router with higher throughput provides separate 2.4 GHz and 5 GHz bands, reduces channel congestion, and improves overall network capacity. A higher-speed router can handle multiple concurrent connections more efficiently, reducing latency and ensuring consistent performance for all devices on the network.
B replacing network cards on client devices may improve connectivity marginally, but the bottleneck in this scenario is the router’s capacity, not the endpoints. C moving the router may improve coverage in certain areas but does not address overall network congestion or throughput limitations. D enabling MAC address filtering improves security but does not increase available bandwidth or reduce peak-hour slowdowns.
CompTIA A+ candidates should understand network performance optimization techniques. These include selecting equipment that supports current Wi-Fi standards (e.g., 802.11ac/ax), separating high-traffic devices onto different frequency bands, and minimizing interference from other electronics. Network monitoring can identify bandwidth-heavy applications or devices, and proper configuration ensures fair resource allocation. Upgrading networking hardware strategically enhances user experience, prevents bottlenecks, and aligns with exam objectives emphasizing the practical application of troubleshooting principles in small office and home networks.
