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Question 341Question →

A user reports that a desktop computer relocated to a new office desk has no network access. A technician checks the back of the computer and notices that the Ethernet network adapter LED link lights are completely dark. Which TWO of the following initial actions should the technician take to troubleshoot this physical layer issue?

Select all that apply

Show answer & explanation

Answer: Verify that the Ethernet patch cable is securely plugged into both the computer's network interface card and the wall jack.; Replace the existing patch cable with a known-working Ethernet cable to rule out a damaged cable.

Answer

The technician should verify that the Ethernet patch cable is securely plugged into both ends and replace the patch cable with a known-working cable.
Unlit network interface card LED indicators indicate a physical layer (Layer 1) connection failure. Verifying that the Ethernet cable is firmly seated in both the host NIC and wall port, as well as replacing the cable with a known-working one, directly addresses and isolates physical cable and connection faults.

Step-by-Step Solution

1
Inspect physical status indicators on the network adapter.
Unlit link lights confirm an absence of Layer 1 physical connection.
CompTIA troubleshooting methodology requires starting at Layer 1 of the OSI model when link state indicators indicate no physical connectivity.
2
Check physical cable connections at both termination points.
Ensures loose connectors or improperly seated RJ-45 plugs are resolved.
Loose cabling is a primary cause of unlit network interface card LEDs.
3
Substitute the patch cable with a known-good cable.
Isolates physical wire breaks, pin deformation, or internal cable damage.
Testing with known-good hardware isolates cable faults without requiring complex diagnostics.

Key Concept

Wired Network Physical Layer Troubleshooting
Question 342Question →

An IT administrator is purchasing operating system licenses for specialized engineering endpoints. Each workstation is configured with dual physical CPU sockets, 512 GB of system RAM, and must be joined to an Active Directory domain. Additionally, the systems must support hosting Remote Desktop connections for off-site staff and enable full BitLocker drive encryption. Which of the following is the MINIMUM Windows edition that meets all specified hardware configurations and feature requirements?

Show answer & explanation

Answer: Windows 11 Pro

Answer

Windows 11 Pro is the minimum edition that supports dual physical CPUs, 512 GB of RAM, domain join, Remote Desktop hosting, and BitLocker.
Windows 11 Pro is the lowest tier edition that accommodates dual physical CPU sockets and up to 2 TB of system RAM (well above 512 GB). It also includes essential business features such as Active Directory domain membership, Remote Desktop host capability, and full volume BitLocker drive encryption.

Step-by-Step Solution

1
Analyze hardware limits across Windows editions.
Windows 11 Home supports 1 CPU socket and up to 128 GB RAM. Windows 11 Pro supports up to 2 CPU sockets and 2 TB RAM. Pro for Workstations and Enterprise support up to 4 CPU sockets and 6 TB RAM.
The system hardware (dual CPUs, 512 GB RAM) immediately eliminates Windows 11 Home.
2
Evaluate feature requirements (Domain Join, RDP Host, BitLocker).
Windows 11 Pro, Pro for Workstations, and Enterprise all support Active Directory domain join, hosting RDP sessions, and BitLocker encryption.
Windows 11 Home lacks all three enterprise management and security features.
3
Determine the MINIMUM qualifying edition.
Windows 11 Pro fulfills both the hardware boundaries (2 CPUs, 512 GB RAM) and feature boundaries without requiring the higher-tier Pro for Workstations or Enterprise editions.
Selecting higher editions incurs unnecessary licensing costs when standard Pro meets 100% of specified needs.

Key Concept

Windows OS Hardware Specifications and Feature Matrix
Question 343Question →

A network technician is setting up a Standard TCP/IP Port connection on a centralized Windows print server for a newly installed network multifunction device (MFD). The organization requires standard, unformatted data stream printing while ensuring the print server can automatically track consumable levels and hardware status alerts. Which of the following port parameters and features should the technician configure on the server? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Configure the printer port to use RAW protocol over TCP port 9100.; Enable SNMP Status Enabled within the port configuration properties.

Answer

The technician should configure the port protocol to RAW over TCP port 9100 and enable SNMP Status Enabled in the port configuration settings.
Configuring the port to RAW protocol on TCP port 9100 provides the standard data path for Windows network print jobs without requiring LPD/LPR spooling queue identifiers. Enabling SNMP status monitoring allows the server to query device health, paper states, and toner levels continuously.

Step-by-Step Solution

1
Identify the standard network printing protocol used for Windows TCP/IP port creation.
Select RAW protocol using default TCP port 9100.
RAW mode is the default and most efficient data stream protocol for modern network printers.
2
Enable status tracking capabilities on the network port.
Check the box for SNMP Status Enabled.
Simple Network Management Protocol (SNMP) allows the operating system and print server to poll the MFD for consumable metrics and errors.

Key Concept

Standard TCP/IP Printer Port Configuration and SNMP Monitoring
Estimated Time:1m 30s
Question 344Question →

A company hosts its internal payroll application on cloud infrastructure that is dedicated strictly to its own organization and is not shared with any external third parties. Which cloud deployment model is being used?

Show answer & explanation

Answer: Private cloud

Answer

Private cloud model
The private cloud model features infrastructure operated solely for a single organization. Because the scenario specifies that the environment is dedicated strictly to one company and not shared with third parties, it represents a private cloud deployment.

Step-by-Step Solution

1
Analyze the access and tenancy described in the scenario
The environment is used exclusively by one organization and not shared with outside parties
Exclusive single-tenant infrastructure defines private deployment
2
Differentiate between deployment models and service models
Select the deployment model matching exclusive single-organization usage
Private cloud satisfies single-tenant dedicated requirements

Key Concept

Cloud Deployment Models (Private Cloud)
Question 345Question →

A systems administrator is preparing to deploy laptops for remote employees. Corporate compliance policies dictate that the operating system on these endpoints must natively support full BitLocker Drive Encryption and be capable of serving as a Remote Desktop host for IT support access. Which of the following Windows 11 editions meet BOTH requirements? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Windows 11 Pro; Windows 11 Enterprise

Answer

Windows 11 Pro and Windows 11 Enterprise natively support both full BitLocker Drive Encryption and incoming Remote Desktop host services.
Windows 11 Pro and Windows 11 Enterprise are business-grade editions that natively include enterprise management features, including full BitLocker Drive Encryption management and the ability to host Remote Desktop sessions for inbound administration.

Step-by-Step Solution

1
Identify the required OS feature set based on organizational requirements
The requirements are full BitLocker Drive Encryption and Remote Desktop Host (Server) capability.
Security compliance mandates full drive encryption management, and helpdesk remote assistance requires hosting RDP sessions.
2
Evaluate feature availability across Windows 11 editions
Windows 11 Home variants support client-side RDP connections and basic Device Encryption, but lack full BitLocker management and RDP hosting functionality.
Advanced management features like RDP hosting and full BitLocker administration are restricted to professional and enterprise editions.
3
Select qualifying Windows editions
Both Windows 11 Pro and Windows 11 Enterprise natively support both BitLocker and Remote Desktop hosting.
Pro and Enterprise editions include corporate administration features required for business remote endpoint deployments.

Key Concept

Windows Edition Feature Capabilities (BitLocker and RDP Host)
Question 346Question →

A field technician is reconfiguring wireless access points at a branch office after users report poor network performance and frequent packet drops. A site survey reveals that three nearby 2.4 GHz access points are configured on channels 1, 6, and 8. Which channel should the technician assign to the third access point to eliminate adjacent-channel interference?

Show answer & explanation

Answer: Channel 11

Answer

Channel 11
In the 2.4 GHz Wi-Fi spectrum, channels 1, 6, and 11 are the only three non-overlapping 20 MHz channels in North America. With the first two access points assigned to channels 1 and 6, assigning the third access point to channel 11 eliminates adjacent-channel interference across all three access points.

Step-by-Step Solution

1
Identify the frequency band and channel width specified in the scenario.
The network operates on the 2.4 GHz band using standard 20 MHz wide channels.
The 2.4 GHz spectrum has limited frequency range and requires explicit selection of non-overlapping channels to avoid interference.
2
Determine the standard non-overlapping channel scheme for 2.4 GHz Wi-Fi.
Channels 1, 6, and 11 do not overlap with one another.
Each 20 MHz channel in the 2.4 GHz band spans across 5 channel numbers, so channels must be separated by at least 5 channel numbers (1, 6, 11) to avoid adjacent-channel interference.
3
Compare the existing configuration (channels 1, 6, 8) with the standard scheme.
Channel 8 overlaps with channel 6. Changing channel 8 to channel 11 completes the non-overlapping triad (1, 6, 11).
Reassigning the third access point to channel 11 resolves the adjacent-channel interference problem completely.

Key Concept

2.4 GHz Non-Overlapping Wi-Fi Channels
Estimated Time:1m 0s
Question 347Question →

A network technician is installing a backbone link to connect network switches located in two separate buildings 400 meters (1,312 feet) apart. The cable route runs near heavy industrial motors, requiring complete immunity to electromagnetic interference (EMI). Which of the following components should the technician select for this deployment? (Select TWO).

Select all that apply

Show answer & explanation

Answer: Single-mode fiber (SMF) optic cabling; LC (Lucent Connector) connectors

Answer

The technician should select single-mode fiber (SMF) optic cabling and LC (Lucent Connector) connectors.
Single-mode fiber (SMF) optic cabling easily spans distances greater than 100 meters and utilizes light pulses, eliminating signal degradation from high EMI. LC (Lucent Connector) connectors are the standard small-form-factor fiber optic connectors designed to plug into optical transceiver ports on switches.

Step-by-Step Solution

1
Evaluate distance and EMI resistance constraints
Distance requirement is 400 meters, which exceeds the 100-meter maximum limit of copper Ethernet cabling, and immunity to EMI is required.
Twisted-pair copper cables attenuate over 100 meters and are vulnerable to industrial electrical noise.
2
Select appropriate cable medium
Single-mode fiber (SMF) optic cable is selected.
SMF uses laser light to carry signals across long distances without attenuation or susceptibility to electrical interference.
3
Select corresponding connector type
LC fiber connectors are selected.
LC connectors are small-form-factor fiber connectors that fit into switch SFP/SFP+ transceiver modules.

Key Concept

Fiber optic cable and connector selection for long-distance high-speed networking
Question 348Question →

An IT technician is servicing a convertible laptop where touch input stopped responding completely after a minor drop, and wireless network connectivity drops intermittently whenever the display hinge is moved. The screen image itself remains sharp and fully functional. Which TWO of the following display assembly components should the technician inspect or replace to resolve these symptoms?

Select all that apply

Show answer & explanation

Answer: Digitizer panel; Wi-Fi antenna harness

Answer

The technician should inspect or replace the digitizer panel and the Wi-Fi antenna harness.
The digitizer panel is responsible for capturing tactile input on touch-capable laptop screens, explaining why touch responsiveness failed after a drop while the visual display remained functional. Wi-Fi antenna wires are routed through the display hinge into the upper screen enclosure to maximize wireless signal reception; damage or pinching of these wires inside the hinge causes intermittent wireless drops when moving the screen lid.

Step-by-Step Solution

1
Analyze the touch failure symptom
Identify that touch input conversion is handled by the digitizer panel layer in the display assembly.
Loss of touch functionality while visual output is unaffected indicates a damaged digitizer or loose digitizer flex connector.
2
Analyze the wireless signal disruption upon hinge movement
Identify that Wi-Fi antenna cables route through the laptop display hinges into the top display housing.
Intermittent Wi-Fi loss during lid movement indicates pinched or damaged antenna wires inside the hinge assembly.
3
Rule out unrelated components
Confirm that the main video cable, inverter board, and webcam module are not responsible for touch input or Wi-Fi signal loss.
The screen image is working normally, ruling out video cable issues, and backlighting/webcam components do not process touch input or wireless RF signals.

Key Concept

Laptop Display Assembly Components and Symptom Diagnosis
Question 349Question →

A desktop technician is troubleshooting a workstation used for high-resolution video editing. The system features a motherboard-managed RAID 0 array consisting of two 2 TB NVMe SSDs configured strictly as a high-speed scratch volume. The user reports that file exports have suddenly become sluggish and occasionally fail with input/output device write errors. OS diagnostics report the volume status as 'Healthy', but a hardware S.M.A.R.T. utility reveals a high count of media errors and an available spare percentage below the critical threshold on one of the NVMe drives. Which of the following is the most appropriate immediate action for the technician to take?

Show answer & explanation

Answer: Immediately back up any critical data from the volume, replace the failing drive, recreate the RAID 0 array, and restore the data.

Answer

Immediately back up any critical data from the volume, replace the failing drive, recreate the RAID 0 array, and restore the data.
RAID 0 stripes data across multiple disks to optimize performance but offers no redundancy or fault tolerance. When S.M.A.R.T. diagnostics report critical media errors and low spare blocks on an NVMe SSD in a RAID 0 array, total drive failure is imminent. The technician must immediately salvage any un-backed-up data from the readable volume, replace the defective SSD, define a new RAID 0 array in the controller setup, and restore the data onto the fresh volume.

Step-by-Step Solution

1
Analyze the RAID configuration and diagnostic metrics.
Identified that the volume uses RAID 0 (striping without redundancy) and one NVMe drive has S.M.A.R.T. flags indicating imminent physical hardware failure.
RAID 0 has zero fault tolerance; if one drive fails completely, all data across the array is lost.
2
Perform an immediate data backup while the drive is still partially operational.
Existing scratch files are secured onto an external or separate storage volume.
Since RAID 0 cannot be degraded or rebuilt, recovering accessible files immediately before total drive collapse is the highest priority.
3
Replace the failing NVMe drive, recreate the RAID 0 array in the storage controller, and restore the backup.
The scratch storage array is restored to full health and performance capacity.
A replacement drive must be initialized into a new RAID 0 volume because striping must be re-established across healthy media.

Key Concept

RAID 0 Fault Tolerance and S.M.A.R.T. Diagnostic Troubleshooting
Question 350Question →

A field technician is assembling a desktop computer using a Pin Grid Array (PGA) processor and an active cooling system. Which of the following statements accurately describe the physical installation and operational characteristics of these components? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: The processor pins must align with the motherboard receptacle holes and seat completely with zero downward force before securing the retention lever.; Connecting the cooling fan to a 4-pin header on the motherboard enables Pulse Width Modulation (PWM) for dynamic fan speed adjustments based on system temperature.

Answer

The correct statements are that PGA processors require zero insertion force with pins aligned to socket holes before locking the retention lever, and that 4-pin CPU fan headers provide PWM signal control for automated variable fan speeds.
PGA processors use Zero Insertion Force (ZIF) sockets where the CPU drops smoothly into place without pressing, and the side lever is locked down to clamp the pins. Additionally, 4-pin motherboard headers supply a dedicated Pulse Width Modulation (PWM) signal line that enables automatic fan speed scaling according to CPU heat output.

Step-by-Step Solution

1
Analyze the CPU socket architecture
Identify that PGA (Pin Grid Array) processors feature external pins on the underside that fit into ZIF (Zero Insertion Force) sockets.
ZIF sockets allow insertion without force; pushing down manually damages the pins.
2
Analyze the cooling fan connector interface
Identify that 4-pin fan headers include ground, power, tachometer signal, and PWM control signal.
PWM control alters fan speed dynamically based on thermal feedback from the motherboard and CPU sensors.

Key Concept

PGA ZIF Socket Mechanism and 4-Pin PWM Thermal Management
Estimated Time:1m 15s
Question 351Question →

A systems support specialist is investigating a high-capacity laser printer that continuously outputs completely blank white pages. During diagnostic testing, the specialist performs a half-way stop test by interrupting the print cycle right before paper enters the heating stage. Inspection reveals a fully developed latent image of loose toner deposited on the photosensitive drum surface, but no toner image has been pulled onto the paper. Which of the following components or process failures is the primary cause of this issue?

Show answer & explanation

Answer: A malfunctioning transfer roller that fails to apply a strong positive charge to the back of the paper

Answer

A malfunctioning transfer roller that fails to apply a strong positive charge to the back of the paper
The half-way stop test proves that the laser printing process works up through the development phase, as toner is successfully deposited on the photosensitive drum. The step that moves toner from the drum onto the paper is the transfer step. If the transfer roller fails to apply the positive electrical charge to the back of the paper, the negatively charged toner remains on the drum, resulting in completely blank printed pages.

Step-by-Step Solution

1
Analyze the results of the half-way print stop test
Toner is correctly attracted to the photosensitive drum, confirming that processing, charging, exposing, and developing steps are functioning.
Since a developed toner image is physically present on the drum before reaching the paper, all EP process steps prior to transfer are operational.
2
Evaluate the mechanism responsible for moving toner from the drum onto paper
The transfer roller (or transfer corona assembly) must pull the negatively charged toner from the drum to the paper by applying a high positive charge to the underside of the paper.
Because the paper leaves the drum completely blank while the drum holds the image, the charge differential needed for transfer is missing.
3
Identify the failing component based on symptoms
The transfer roller is confirmed as the faulty component responsible for the blank print output.
Failure of the transfer roller prevents toner transfer while leaving earlier steps intact.

Key Concept

Electrophotographic (EP) Laser Printing Process - Transfer Step Failure
Estimated Time:1m 30s
Question 352Question →

A network specialist is troubleshooting a VoIP system issue where users in a newly opened branch office experience one-way audio during external calls. The specialist gathered logs from the phone gateway, verified physical connectivity, and formed a theory that the perimeter firewall is dropping outbound UDP Real-time Transport Protocol (RTP) traffic due to strict inspection rules. To verify this, the specialist duplicated the policy configuration in an isolated staging environment, modified the inspection parameters, and confirmed that two-way audio was fully restored on test calls. Which of the following is the NEXT step the specialist should take according to the CompTIA troubleshooting methodology?

Show answer & explanation

Answer: Establish a plan of action to resolve the issue on the production firewall and implement the solution.

Answer

Establish a plan of action to resolve the issue on the production firewall and implement the solution.
The scenario describes a technician who has successfully completed Step 3 (Test the theory to determine cause) by proving in a lab setting that modifying firewall inspection resolves the RTP audio drops. The immediate next step in the CompTIA troubleshooting methodology is Step 4: Establish a plan of action to resolve the problem and implement the solution on the live system.

Step-by-Step Solution

1
Identify the stage of the troubleshooting process reached in the scenario.
The specialist gathered information (Step 1), established a theory regarding RTP payload filtering (Step 2), and tested the theory in an isolated staging environment to confirm the cause (Step 3).
Determining the completed steps establishes where the scenario falls within the standard CompTIA 6-step framework.
2
Determine the next sequential step in the CompTIA troubleshooting framework.
Step 4 is 'Establish a plan of action to resolve the problem and implement the solution.'
Once a theory of cause is confirmed by testing, the technician must plan the implementation (including change management considerations) and apply the resolution to the production environment.

Key Concept

CompTIA Troubleshooting Methodology Order
Estimated Time:2m 0s
Question 353Question →

A network administrator is maintaining a workstation used to host several test environment virtual machines. When the administrator reboots the underlying host operating system to apply security updates, all virtual machines are forcibly shut down because the virtualization software operates as an application layer on top of the host operating system. Which hypervisor architecture is deployed on this workstation?

Show answer & explanation

Answer: Type 2 hypervisor

Answer

Type 2 hypervisor
The correct answer identifies a Type 2 hypervisor because it runs as an application on top of an operating system. Rebooting or patching the primary host operating system stops the hypervisor software and brings down all hosted virtual machines.

Step-by-Step Solution

1
Analyze the virtualization environment structure in the scenario.
The virtualization software is installed as an application on top of an existing host operating system.
This indicates an intermediary OS layer exists between the physical hardware and the hypervisor software.
2
Evaluate the cause of the virtual machine shutdown.
Rebooting the host operating system terminates the underlying hypervisor application, which forcibly stops all running guest virtual machines.
Hosted hypervisors rely entirely on the host OS kernel for system services and CPU/memory scheduling.
3
Identify the corresponding hypervisor architecture.
A hypervisor dependent on a host operating system is classified as a Type 2 hypervisor.
Type 1 hypervisors operate directly on host hardware (bare metal), whereas Type 2 hypervisors operate hosted on top of an existing OS.

Key Concept

Type 2 hypervisors run as software applications on top of a primary host operating system, making guest virtual machines reliant on host OS availability.
Estimated Time:1m 0s
Question 354Question →

A help desk technician needs to configure a routine maintenance script to run automatically on a Windows 11 workstation every Sunday at midnight. Which Windows administrative tool should the technician use to accomplish this task?

Show answer & explanation

Answer: Task Scheduler

Answer

Task Scheduler is the correct tool for scheduling automated tasks and scripts at specific times.
Task Scheduler is the dedicated administrative snap-in in Microsoft Windows used to automate routine tasks by defining triggers (such as a time schedule) and actions (such as starting a script).

Step-by-Step Solution

1
Identify the primary requirement
The requirement is to run a script automatically at a scheduled time (every Sunday at midnight).
Determining the functional goal helps match the requirement to the proper Windows management tool.
2
Evaluate the available administrative utilities
Task Scheduler provides trigger-based automation capabilities for executing scripts and applications.
Task Scheduler allows defining time-based triggers and action routines.

Key Concept

Windows Task Scheduler Utility
Question 355Question →

A user purchased a new laptop pre-installed with Windows 11 Home for workplace use. The company IT security policy requires the laptop to join the corporate Active Directory domain and enable BitLocker Drive Encryption. Which Windows edition is the minimum requirement to support both of these features?

Show answer & explanation

Answer: Windows 11 Pro

Answer

Windows 11 Pro is the minimum Windows edition required to support Active Directory domain join and BitLocker Drive Encryption.
Windows 11 Pro is the lowest edition tier that includes core corporate features such as Active Directory domain join, BitLocker Drive Encryption, Remote Desktop host capability, and Group Policy Management.

Step-by-Step Solution

1
Identify the required operating system features from the business requirements.
The requirements are Active Directory domain join and BitLocker Drive Encryption.
These security and management features are essential for corporate network integration.
2
Evaluate feature availability in Windows Home edition.
Windows Home lacks native Active Directory domain join and full BitLocker volume encryption.
Home editions are targeted at consumer use and lack corporate management interfaces.
3
Determine the minimum Windows edition upgrade path that fulfills these requirements.
Windows 11 Pro is the entry-level commercial edition that includes both features.
Windows Pro provides domain join, BitLocker, and Group Policy at the baseline edition level without needing enterprise volume licensing.

Key Concept

Windows Edition Feature Differentiation
Question 356Question →

A network technician is troubleshooting a workstation in an enterprise office that cannot connect to local network resources or the internet. The workstation's network interface card displays a solid green link light and an amber activity light. Running the `ipconfig` command on the workstation displays an IPv4 address of 169.254.44.102 and a subnet mask of 255.255.0.0, but no default gateway. Which of the following is the MOST likely cause of this issue?

Show answer & explanation

Answer: The workstation is unable to communicate with a DHCP server to obtain an IP address assignment.

Answer

The workstation is unable to communicate with a DHCP server to obtain an IP address assignment.
When a device configured for dynamic IP addressing cannot reach a DHCP server, Windows automatically assigns an Automatic Private IP Addressing (APIPA) address in the 169.254.0.0/16 range. Since the physical link lights confirm physical connectivity, the primary root cause is DHCP unreachability or server failure.

Step-by-Step Solution

1
Inspect physical layer status from diagnostic lights
Solid green link light and amber activity light confirm Layer 1 hardware and cabling are functioning correctly.
Verifying physical connectivity eliminates cable or port disconnection issues.
2
Analyze command-line diagnostic output
The IP address 169.254.44.102 falls within the APIPA range (169.254.0.1 to 169.254.255.254).
Operating systems automatically assign an APIPA address when configured for dynamic addressing but unable to contact a DHCP server.
3
Identify root cause based on APIPA assignment
DHCP server reachability failure or service outage.
Without DHCP response, the host defaults to APIPA, allowing local link-local communication but preventing access to external subnets or internet resources.

Key Concept

APIPA Address Interpretation and DHCP Failure Troubleshooting
Estimated Time:1m 15s
Question 357Question →

A technician is preparing to upgrade the system memory on a corporate laptop. Which memory module form factor is specifically designed for use in laptop computers?

Show answer & explanation

Answer: Small Outline Dual In-line Memory Module (SO-DIMM)

Answer

Small Outline Dual In-line Memory Module (SO-DIMM)
Small Outline Dual In-line Memory Modules (SO-DIMMs) are specifically manufactured for laptops, 2-in-1 devices, and small form factor PCs because their reduced physical footprint allows them to fit inside compact mobile chassis.

Step-by-Step Solution

1
Identify the target device type needing a memory upgrade.
The target device is a laptop computer.
Laptops require compact hardware components due to tight internal spatial constraints.
2
Determine the appropriate memory module form factor designed for laptop space specifications.
SO-DIMM modules are approximately half the length of desktop RAM modules.
SO-DIMM (Small Outline DIMM) provides full RAM performance in a smaller footprint suitable for mobile computers.

Key Concept

Laptop System Memory Form Factors
Question 358Question →

A network technician is troubleshooting a desktop computer that has lost network connectivity. Upon inspecting the back of the computer, the technician observes that the link light on the Ethernet network interface card (NIC) is completely off. Which of the following should the technician perform FIRST?

Show answer & explanation

Answer: Check if the Ethernet cable is securely connected at both the computer and the wall jack

Answer

Check if the Ethernet cable is securely connected at both the computer and the wall jack
An unlit link light indicates a failure at Layer 1 (Physical Layer) of the OSI model. Verifying that the cable is properly seated and undamaged is the logical first step to establish physical layer connectivity.

Step-by-Step Solution

1
Identify the primary symptom
The Ethernet NIC link light is unlit, indicating no physical connection signal.
Unlit link lights point directly to a Layer 1 physical layer failure.
2
Select the appropriate troubleshooting step
Inspect and reseat physical cabling.
CompTIA troubleshooting methodology specifies starting with the physical layer before moving to higher-level logical configurations.

Key Concept

Wired Network Physical Layer Diagnostics
Question 359Question →

A network technician is troubleshooting a workstation that lost access to internal network shares following an infrastructure upgrade. The technician interviewed the affected user, reviewed recent configuration changes, and established a theory that an incorrect VLAN tagging configuration on the managed access switch is preventing traffic from reaching the default gateway. According to the standard CompTIA troubleshooting methodology, which of the following actions should the technician perform NEXT?

Show answer & explanation

Answer: Log into the access switch CLI to inspect port VLAN assignments and verify whether the workstation's switchport is dropping tagged packets.

Answer

Log into the access switch CLI to inspect port VLAN assignments and verify whether the workstation's switchport is dropping tagged packets.
The correct action is to test the established theory to confirm the root cause before taking corrective action. Inspecting the switchport configuration in the switch CLI validates whether the VLAN assignment is indeed the source of the network isolation.

Step-by-Step Solution

1
Identify the current stage in the CompTIA 6-step troubleshooting methodology.
The technician has already identified the problem and established a theory of probable cause (VLAN tagging mismatch).
Determining the current phase dictates the immediate subsequent step required by standard protocol.
2
Determine the mandatory next step following theory establishment.
Step 3 of the CompTIA methodology is 'Test the theory to determine cause'.
A theory must be tested and confirmed before developing a plan of action or implementing changes.
3
Evaluate the choices to find the action that tests the theory.
Inspecting switchport settings via CLI directly confirms or disproves whether the VLAN configuration is causing the failure.
Diagnostic observation tests the hypothesis without jumping prematurely into change implementation.

Key Concept

CompTIA 6-Step Troubleshooting Methodology (Testing the Theory)
Question 360Question →

A field technician is troubleshooting a laptop that powers on normally but displays a completely dark screen. When connected to an external monitor via HDMI, the display output works properly. The technician disassembles the display assembly—which features an OLED screen—to locate and replace the display inverter board, assuming a backlight power failure. However, the technician is unable to find an inverter board inside the assembly. Why is the technician unable to locate an inverter board on this laptop?

Show answer & explanation

Answer: OLED display technology utilizes organic self-emitting pixels and does not require a separate backlight or inverter board.

Answer

OLED display technology utilizes organic self-emitting pixels and does not require a separate backlight or inverter board.
OLED displays do not rely on an external light source or backlight assembly. Each individual sub-pixel emits its own light when energized. Because there is no Cold Cathode Fluorescent Lamp (CCFL) requiring high-voltage AC power, OLED displays do not contain an inverter board.

Step-by-Step Solution

1
Identify the display technology used in the mobile device.
The device features an OLED (Organic Light-Emitting Diode) display.
Different display technologies (LCD vs OLED) utilize different illumination mechanisms.
2
Analyze the illumination requirements of OLED technology.
OLED panels do not use a backlight; each pixel produces its own light when electric current is applied.
Since there is no CCFL (Cold Cathode Fluorescent Lamp) backlight present, an inverter board (which converts DC power to AC for CCFL tubes) is not part of the hardware architecture.
3
Select the option that accurately explains the absence of the inverter board.
The technician cannot find an inverter board because OLED screens do not use backlights or inverters.
Understanding component architecture prevents unnecessary disassembly and incorrect part replacement.

Key Concept

OLED Display Architecture vs LCD Backlighting Components
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