Hardware

445 questions

All types445 Multiple choice225 Multiple select101 Numeric6 Matching94 Ordering19

A field technician is upgrading a desktop workstation by installing a newly purchased M.2 SATA SSD into an available expansion slot on the motherboard. According to the motherboard technical manual, this specific slot is wired exclusively to communicate over PCIe x4 lanes. Upon powering on the workstation and entering the UEFI setup utility, the technician observes that the new M.2 drive is not recognized by the system. Which of the following best explains why the drive is not detected?

The M.2 slot is wired strictly to the PCIe bus and lacks a SATA controller link, preventing communication with an M.2 SATA drive.

The motherboard's primary storage controller mode must be reconfigured from AHCI mode to NVMe mode in UEFI settings to detect SATA drives.

The M.2 SATA solid-state drive requires a dedicated 15-pin SATA power cable attached from the power supply unit to function.

The installed drive cannot be enumerated in UEFI until operating system-level NVMe host controller drivers are loaded.

Show answer & explanation

Answer: The M.2 slot is wired strictly to the PCIe bus and lacks a SATA controller link, preventing communication with an M.2 SATA drive.

Answer

The M.2 slot is wired strictly to the PCIe bus and lacks a SATA controller link, preventing communication with an M.2 SATA drive.

Although M.2 defines a standardized physical form factor, motherboard M.2 slots vary in their underlying bus connections. A slot that is wired exclusively to PCIe x4 lanes cannot communicate with a drive that operates on the SATA protocol. Because the slot lacks a physical link to a SATA controller, the UEFI firmware cannot detect or enumerate the M.2 SATA drive.

Step-by-Step Solution

Analyze the physical and protocol constraints of the storage drive and motherboard slot.

The installed drive uses the SATA transfer protocol, whereas the motherboard M.2 slot is wired exclusively with PCIe x4 lanes.

M.2 is a physical form factor that can route either SATA or PCIe bus signaling depending on motherboard slot wiring.

Determine the compatibility requirement for M.2 SATA drives.

For an M.2 slot to support a SATA SSD, the slot must be routed to a motherboard SATA controller or support dual-mode (SATA/PCIe) operation.

If an M.2 slot is PCIe-only, a SATA drive inserted into it will not establish a data link.

Identify the cause of the detection failure.

The absence of SATA signal routing on the PCIe-only slot prevents the UEFI firmware from recognizing the SATA SSD.

Protocol mismatch between drive type and slot wiring causes total detection failure.

Key Concept

M.2 Form Factor vs. Protocol Compatibility (PCIe / NVMe vs. SATA)

Question 342Question →

A network administrator is setting up a new network printer to be shared through a central Windows print server. Place the configuration steps in the correct logical sequence from first to last.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct order to deploy a network print share is: 1) Assign a static IP address to the printer, 2) Add a TCP/IP port and install the driver on the print server, 3) Enable printer sharing and permissions on the server, and 4) Map the shared printer on client workstations.

The correct setup sequence begins with assigning a static IP address directly to the printer to ensure consistent communication. Next, the server is configured with a standard TCP/IP port and appropriate printer driver. After the local print queue functions on the server, sharing and access permissions are configured. Finally, client computers are connected to the network print share.

Step-by-Step Solution

Configure the physical printer with a static IP address.

The printer maintains a constant network location.

Print servers require a fixed IP address to prevent print queue failure due to DHCP address changes.

Create the print queue on the print server using a standard TCP/IP port and the vendor driver.

The print server establishes communication with the printer.

The print server must communicate with the hardware before it can broadcast a share queue to the network.

Turn on network sharing for the print queue and set permission controls.

The print queue is advertised and accessible over the network.

Sharing exposes the queue to authorized clients across the subnet.

Connect client computers to the server's shared print queue.

Users can successfully submit jobs to the network printer.

Clients send print jobs to the print server share only after the share is operational.

Key Concept

Network Print Server Deployment Workflow

Question 343Question →

A desktop support technician is configuring a workstation connected to a high-end $4\text{K}$ monitor requiring a resolution of $3840 \times 2160$ at $120\text{ Hz}$ with $10\text{-bit}$ HDR color depth. The display supports DisplayPort 1.4 and USB Type-C (DisplayPort Alt Mode) inputs. The workstation is connected to the monitor's USB-C port using a standard USB 3.2 Gen 1 (5 Gbps) Type-C cable, but the display output is restricted to $1920 \times 1080$ at $60\text{ Hz}$ , and built-in monitor USB hub speeds are severely degraded. Which of the following actions will resolve the display limitation while maintaining high-speed USB data passthrough for integrated peripherals?

Replace the existing cable with a certified 40 Gbps Thunderbolt 4 / USB4 cable supporting DisplayPort 1.4 HBR3 Alternate Mode.

Connect the display using a passive USB-C to Single-Link DVI-D adapter cable.

Configure the graphics driver settings to force DisplayPort Alternate Mode over legacy USB 2.0 fallback pins.

Replace the connection with a standard High Speed HDMI cable connected through a passive USB-C to HDMI adapter.

Show answer & explanation

Answer: Replace the existing cable with a certified 40 Gbps Thunderbolt 4 / USB4 cable supporting DisplayPort 1.4 HBR3 Alternate Mode.

Answer

Replace the existing cable with a certified 40 Gbps Thunderbolt 4 / USB4 cable supporting DisplayPort 1.4 HBR3 Alternate Mode.

DisplayPort Alternate Mode over USB Type-C relies on high-speed differential pairs within the cable. To drive a

4\text{K}

display at

120\text{ Hz}

alongside USB data passthrough, high bit rate 3 (HBR3) bandwidth is required. Replacing the basic 5 Gbps USB 3.2 cable with a certified 40 Gbps Thunderbolt 4 / USB4 cable provides full physical wire populating and shielding required to transmit uncompressed

4\text{K}

video at

120\text{ Hz}

while preserving USB peripheral throughput.

Step-by-Step Solution

Analyze resolution and bandwidth requirements

A resolution of

3840 \times 2160

(

4\text{K}

) at

120\text{ Hz}

with

10\text{-bit}

HDR color depth requires approximately 25.8 Gbps of uncompressed video bandwidth (HBR3 rating).

Standard USB 3.2 Gen 1 cables are limited to 5 Gbps and lack the high-speed lane wiring required for high-refresh

4\text{K}

video signals alongside data.

Evaluate USB Type-C physical connector vs. protocol capabilities

Physical USB Type-C cables vary significantly in internal pin populating and shielding, affecting supported protocols (DisplayPort Alt Mode vs. basic USB data).

To support both high-bitrate video (HBR3) and high-speed peripheral data over a single port, a cable certified for 40 Gbps (Thunderbolt 4 / USB4) is required.

Select the appropriate replacement cable

The certified 40 Gbps Thunderbolt 4 / USB4 cable supports full DisplayPort 1.4 Alt Mode bandwidth without compromising attached USB hub data transfer rates.

This cable meets all video bandwidth, refresh rate, and multi-stream data requirements.

Key Concept

DisplayPort Alternate Mode over USB-C and cable bandwidth limits

Question 344Question →

A systems engineer is assembling a high-performance workstation featuring a high-end CPU ( $125\text{ W}$ TDP), a flagship discrete GPU with a peak power draw of $450\text{ W}$ , multiple NVMe drives ( $30\text{ W}$ combined), and liquid cooling pumps with fans ( $45\text{ W}$ combined). The system is currently equipped with a $650\text{ W}$ power supply unit (PSU). Under full benchmarking load, the workstation instantly shuts off without generating any operating system crash logs or blue screen errors. Which of the following statements correctly explain the root cause of these shutdowns and identify the necessary power infrastructure requirements for stable operation? (Select TWO.)

Select all that apply

The existing power supply fails to provide adequate wattage headroom to support the combined continuous component power budget and transient GPU peak power excursions, requiring a replacement rated for at least

850\text{ W}

The graphics card must receive dedicated auxiliary power connections via individual

+12\text{ V}

cable runs from the PSU rather than a single daisy-chained cable split across multiple headers.

The motherboard PCIe x16 expansion slot is defective because it fails to supply the required

450\text{ W}

of auxiliary power directly through the motherboard bus pins.

The system motherboard requires an upgraded EPS12V CPU power connector configured to auto-negotiate wattage draw with the expansion bus during heavy processing workloads.

Show answer & explanation

Answer: The existing power supply fails to provide adequate wattage headroom to support the combined continuous component power budget and transient GPU peak power excursions, requiring a replacement rated for at least $850\text{ W}$ .; The graphics card must receive dedicated auxiliary power connections via individual $+12\text{ V}$ cable runs from the PSU rather than a single daisy-chained cable split across multiple headers.

Answer

Stable operation requires replacing the power supply with a unit rated for at least

850\text{ W}

to accommodate baseline draws and GPU transient spikes, alongside powering the graphics card using independent, non-daisy-chained auxiliary

+12\text{ V}

power cables directly from the PSU.

The correct selections recognize both the quantitative wattage deficit and the physical power delivery cabling requirements. The baseline load of

650\text{ W}

leaves zero margin for efficiency loss or transient GPU power spikes on a

650\text{ W}

PSU, requiring an upgrade to an

850\text{ W}

or higher unit. Additionally, high-wattage graphics cards require independent PCIe auxiliary power cables connected directly to dedicated PSU outlets to prevent overcurrent cable failure and trips.

Step-by-Step Solution

Calculate the continuous power baseline of the workstation components.

Sum of component power draws:

125\text{ W (CPU)} + 450\text{ W (GPU)} + 30\text{ W (Storage)} + 45\text{ W (Cooling)} = 650\text{ W}

Establishing total continuous power consumption establishes the minimum theoretical load.

Apply standard industry sizing headroom (

20\%\text{--}30\%

) for efficiency and transient GPU power excursions.

650\text{ W} \times 1.25 \approx 812.5\text{ W}

, indicating a minimum recommended PSU rating of

850\text{ W}

Modern GPUs exhibit momentary power spikes above their rated TBP, triggering Over-Power Protection (OPP) on un-headroomed power supplies.

Evaluate GPU auxiliary power delivery requirements.

Since PCIe slots only provide up to

75\text{ W}

, the remaining

375\text{ W}+

must come from multiple independent PCIe 8-pin or 12VHPWR/12V-2x6 cables running from distinct PSU terminals.

Using daisy-chained splitters on a single cable trunk exceeds safe current limits per gauge wire, triggering Over-Current Protection (OCP) or overheating.

Key Concept

Power Budget Sizing and Auxiliary GPU Cabling Standards

Question 345Question →

A network administrator is configuring a newly deployed multifunction device (MFD) for a legal team. Corporate governance policies mandate that confidential legal documents printed on the device must not sit unattended in the output tray. Which of the following features should the administrator configure to meet this requirement?

Direct printing to bypass the local spooler

Secure print with PIN or badge authentication

Forced duplex printing default profiles

LPR spooling over TCP port 515

Show answer & explanation

Answer: Secure print with PIN or badge authentication

Answer

Secure print with PIN or badge authentication

Enabling secure print or PIN-based print release ensures that jobs are held in print memory until the initiating user authenticates in person at the multifunction device, preventing sensitive paper outputs from sitting unattended in the tray.

Step-by-Step Solution

Identify the security requirement described in the scenario.

The requirement mandates preventing confidential documents from remaining unattended on the paper output tray.

Security and compliance rules require physical privacy at the point of document output.

Evaluate printer configuration features for document release controls.

Secure print (also known as hold print or passcode print) stores the print job securely until the user walks to the MFD and authenticates at the control panel.

This guarantees the user is physically present at the device when pages are extruded into the tray.

Key Concept

MFD Secure Print and User Authentication Configuration

Question 346Question →

A computer technician is sizing a replacement power supply for a desktop computer. The graphics card consumes $300\text{ W}$ at peak load, and all other internal components combined consume $200\text{ W}$ . To maintain system stability, the power supply must provide an additional $20\%$ power headroom above the total peak power draw. What is the minimum power supply wattage required?

600\text{ W}

500\text{ W}

360\text{ W}

300\text{ W}

Show answer & explanation

Answer: $600\text{ W}$

Answer

The minimum power supply wattage required for the system is

600\text{ W}

The total base power consumption of the system is

300\text{ W} + 200\text{ W} = 500\text{ W}

. Including the required

20\%

safety margin (

500\text{ W} \times 0.20 = 100\text{ W}

) increases the minimum total requirement to

600\text{ W}

Step-by-Step Solution

Calculate the total base power consumption of all internal components.

300\text{ W} + 200\text{ W} = 500\text{ W}

All hardware components draw power concurrently during peak load.

Calculate the required

20\%

safety overhead.

500\text{ W} \times 0.20 = 100\text{ W}

Providing power headroom prevents system instability and component degradation.

Sum the total base power draw and the safety headroom margin.

500\text{ W} + 100\text{ W} = 600\text{ W}

This total establishes the minimum rated wattage required for the power supply unit.

Key Concept

Power supply wattage sizing with safety margin

Question 347Question →

During a CPU replacement on a desktop motherboard, a technician observes arrayed copper pin contacts built directly into the socket housing, whereas the underside of the replacement processor consists strictly of flat landing pads. Which socket technology is being utilized?

Land Grid Array (LGA)

Pin Grid Array (PGA)

Ball Grid Array (BGA)

Single Edge Contact Cartridge (SECC)

Show answer & explanation

Answer: Land Grid Array (LGA)

Answer

Land Grid Array (LGA)

Land Grid Array (LGA) architecture places the array of spring-loaded contact pins inside the motherboard socket, requiring the CPU to have matching flat contact pads (lands) on its underside.

Step-by-Step Solution

Analyze the physical location of the contact pins mentioned in the scenario.

The pins are located inside the motherboard socket rather than on the CPU package.

Determining pin location distinguishes between motherboard socket types.

Match the pin arrangement characteristics to CPU socket standards.

Sockets with internal pins and flat pads on the CPU correspond to Land Grid Array (LGA).

LGA shifts delicate pins from the removable processor to the mainboard socket.

Key Concept

CPU Socket Architecture (LGA vs PGA vs BGA)

Question 348Question →

A technician installs a new M.2 PCIe NVMe solid-state drive (SSD) into a desktop motherboard's M.2 slot. Upon powering on the computer, the system BIOS fails to detect the drive. The motherboard manual confirms that the specific slot supports only M.2 SATA drives. Which of the following best explains why the drive is not recognized?

The M.2 slot connects only to the SATA bus controller and cannot process PCIe NVMe data signals.

The M.2 NVMe drive requires an auxiliary 15-pin SATA power cable connected directly to the motherboard.

The technician must enable legacy AHCI mode in the BIOS to allow PCIe NVMe drives to operate over SATA traces.

M.2 solid-state drives automatically convert PCIe protocol signals into SATA interface signals when plugged into legacy motherboard slots.

Show answer & explanation

Answer: The M.2 slot connects only to the SATA bus controller and cannot process PCIe NVMe data signals.

Answer

The M.2 slot connects only to the SATA bus controller and cannot process PCIe NVMe data signals.

While M.2 defines the physical dimensions and connector pin layout, the underlying data transfer protocol depends on motherboard slot wiring. If an M.2 slot connects strictly to a SATA controller, it lacks the PCIe bus routing required by an NVMe drive, rendering the drive invisible to the system BIOS.

Step-by-Step Solution

Differentiate physical form factor from data transport protocols.

M.2 is a physical card connector standard, whereas SATA and NVMe (PCIe) are distinct data protocols.

A physical fit in an M.2 socket does not guarantee that the motherboard slot routes the compatible electrical signals.

Evaluate the motherboard's slot capabilities.

The target M.2 slot routes only SATA controller channels.

An NVMe SSD requires PCIe bus lanes to communicate with the CPU and system controller.

Determine the cause of system detection failure.

Because no PCIe lanes are routed to the slot, the BIOS cannot interface with the NVMe SSD.

Protocol mismatch between drive and slot leads to complete non-detection.

Key Concept

M.2 Form Factor vs. SATA and NVMe Protocol Bus Compatibility

Estimated Time:45s

Question 349Question →

A desktop technician is performing maintenance on an enterprise workstation experiencing thermal shutdowns. Upon unlatching the CPU retaining lever and removing the heat sink, the technician observes that the processor underside features flat gold contact pads with no protruding pins, while the motherboard socket houses an array of delicate, spring-loaded pins beneath a hinged load plate. Additionally, the replacement CPU has a high Thermal Design Power (TDP) rating of $125\text{ W}$ operating inside a small-form-factor chassis. Which socket architecture is present on this motherboard, and which thermal management solution is most appropriate for this processor?

Land Grid Array (LGA) socket, paired with an active cooling system utilizing heat pipes and a fan assembly.

Pin Grid Array (PGA) socket, paired with a passive aluminum heatsink without a fan.

Ball Grid Array (BGA) socket, paired with direct thermal interface material application without a radiator or heatsink.

Zero Insertion Force (ZIF) PGA socket, paired with SO-DIMM thermal conduction pads.

Show answer & explanation

Answer: Land Grid Array (LGA) socket, paired with an active cooling system utilizing heat pipes and a fan assembly.

Answer

The motherboard utilizes a Land Grid Array (LGA) socket, and the processor requires an active cooling system with heat pipes and a fan assembly.

The correct answer identifies the socket as Land Grid Array (LGA) because the spring-loaded pins are located on the motherboard socket while the processor package features flat contact pads. It also specifies an active cooling solution with heat pipes and a fan, which is mandatory for safely cooling a high-TDP (

125\text{ W}

) processor in a small-form-factor case.

Step-by-Step Solution

Identify the physical CPU socket architecture from the hardware description.

The presence of flat gold contact pads on the processor package and pins located inside the motherboard socket indicates an LGA (Land Grid Array) design.

In LGA systems, the delicate pins reside within the motherboard socket under a lever-operated load plate, protecting the CPU package from bent pins.

Evaluate thermal cooling requirements based on processor TDP and chassis envelope.

A high TDP rating of

125\text{ W}

generates significant thermal energy that requires active heat transport.

Passive heatsinks cannot dissipate

125\text{ W}

efficiently in compact enclosures; active cooling with liquid-filled heat pipes and forced-air fans is necessary to prevent thermal throttling.

Key Concept

LGA socket pin placement and active thermal management selection for high-TDP processors

Question 350Question →

A system technician is performing a diagnostic audit on motherboard power interfaces and front panel header pinouts for a mission-critical workstation. Match each motherboard connector or header on the left with its corresponding technical pinout or functional specification on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

8-pin EPS12V Connector matches dedicated +12V VRM processor power; 4-pin PWM Fan Header matches tachometer feedback and speed control signal; 10-1 pin HD Audio Header matches Intel pinout with Pin 8 keying and Pin 7 analog ground; 24-pin ATX Main Power Connector matches multiple DC voltage rails (+3.3V, +5V, +12V, -12V), +5VSB, and Power Good sense line.

Each motherboard header and connector fulfills a distinct physical and electrical specification: the 8-pin EPS12V connector delivers dedicated +12V DC power directly to the processor VRM; the 4-pin PWM fan header provides tachometer reporting alongside a high-frequency speed control pin; the 10-1 HD Audio header follows the Intel standard with Pin 8 keying and Pin 7 analog ground; and the 24-pin ATX P1 connector delivers main system voltage rails (+3.3V, +5V, +12V, -12V), +5VSB standby power, and the PWR_OK sense line.

Step-by-Step Solution

Analyze CPU power delivery interfaces.

Identify that modern CPU sockets draw heavy +12V current through dedicated auxiliary connectors such as the 8-pin EPS12V directly feeding the VRM circuits.

Prevents drawing excessive current through the primary 24-pin motherboard traces.

Evaluate thermal cooling control headers.

Map the 4-pin fan connector pins: Pin 1 Ground, Pin 2 +12V, Pin 3 Sense (Tachometer), Pin 4 Control (PWM).

Allows precise closed-loop dynamic fan speed control based on system thermal sensors.

Analyze front panel audio pin layout standards.

Identify Intel HD Audio specification pinout, featuring a keyed pin 8 slot (10-1 configuration) and Pin 7 analog ground line.

Ensures correct orientation and audio jack sensing capability.

Examine main system board power distribution.

Match the 24-pin ATX main motherboard power connector to multi-rail DC distribution including standby voltage (+5VSB) and PWR_OK line.

Maintains low-power motherboard standby logic state and indicates stable power supply voltages during system boot.

Key Concept

Motherboard Power Interfaces and Internal Header Pin Specifications

Question 351Question →

An IT technician is installing display cabling for a conference room presentation system that requires transmitting both high-definition digital video and digital audio through a single cable without adding secondary audio leads. Which TWO of the following display cable standards natively support carrying both digital video and audio signals over a single connection? (Select TWO)

Select all that apply

DisplayPort

HDMI

VGA

DVI-A

Show answer & explanation

Answer: DisplayPort; HDMI

Answer

DisplayPort and HDMI are the two display standards that natively support streaming both digital video and audio over a single cable connection.

DisplayPort and HDMI were designed as modern digital display standards capable of transmitting high-definition video along with multi-channel digital audio within the same physical cable.

Step-by-Step Solution

Analyze the technical requirements in the scenario

The requirement specifies single-cable delivery of both digital video and digital audio signals.

This requirement rules out video-only legacy interfaces.

Evaluate candidate cable standards against signal capabilities

DisplayPort and HDMI include native channel support for combined video and audio, whereas VGA and DVI-A only support analog video signals.

CompTIA A+ hardware standards specify that DisplayPort and HDMI integrate audio payload capability into their signal definitions.

Key Concept

Display Interface Audio/Video Signal Capabilities

Question 352Question →

A systems administrator is provisioning and replacing internal storage components for various server chassis and client workstations. Match each storage connector or form factor keying standard on the left with its corresponding physical architecture and protocol capability on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

M.2 Key B matches the pin 12–19 notch layout with PCIe x2/SATA support; M.2 Key M matches the pin 59–66 notch layout supporting four PCIe lanes (PCIe x4); U.2 (SFF-8639) matches the 2.5-inch form factor connector with four PCIe lanes for enterprise NVMe drives; SAS matches the connector with a physical keyed bridge between data and power segments.

Each keying and interface standard physically and electrically restricts drive installation: M.2 Key B uses pins 12–19 (PCIe x2 / SATA); M.2 Key M uses pins 59–66 (PCIe x4 for NVMe); U.2 brings PCIe x4 NVMe lanes to 2.5-inch server drive bays; and SAS uses a physical connector bridge between data and power contacts to prevent SAS drives from connecting directly to SATA controllers.

Step-by-Step Solution

Analyze M.2 physical keying standards and pin assignments

Identified Key B as notch location pins 12–19 (PCIe x2/SATA) and Key M as notch location pins 59–66 (PCIe x4/NVMe).

M.2 drive compatibility relies on matching physical keying slots with motherboard protocol support.

Evaluate enterprise 2.5-inch hot-swappable NVMe drive interfaces

Identified U.2 (SFF-8639) as the 2.5-inch form factor interface carrying 4 PCIe lanes.

Enterprise servers utilize U.2 bays to achieve NVMe speeds while retaining front-accessible hot-swappable drive trays.

Examine SAS versus SATA mechanical keying differences

Identified the physical bridge molding on SAS connectors that prevents inserting SAS drives into standard SATA ports.

While SAS host controllers accept SATA drives via unified backplanes, SAS drives require dual-port signal routing and bridged physical connectors.

Key Concept

Storage drive physical interfaces, pin keying specifications, and protocol capabilities across client and enterprise hardware.

Question 353Question →

A technician is tasked with installing RAM into a rackmount server whose motherboard chipset requires Registered DIMMs (RDIMMs) with Error-Correcting Code (ECC). The technician purchases and installs standard Unbuffered ECC DIMMs (ECC UDIMMs) of identical speed, pin count, and capacity. Upon powering on the system, the server fails to complete POST and emits a continuous beep code indicating a memory error. Which of the following best explains why the server failed to start?

The motherboard memory controller cannot interface with unbuffered ECC modules because RDIMMs use a register chip to buffer control and address signals.

The memory modules were installed into adjacent slots across different channels rather than populating alternating slots designated for dual-channel architecture.

The technician selected SO-DIMM form-factor modules that do not fit standard full-sized server motherboard expansion slots.

The motherboard requires non-ECC memory modules because ECC functionality is only supported when using SO-DIMM form factors.

Show answer & explanation

Answer: The motherboard memory controller cannot interface with unbuffered ECC modules because RDIMMs use a register chip to buffer control and address signals.

Answer

The server failed to boot because the motherboard chipset specifically requires Registered DIMMs (RDIMMs). Unbuffered ECC modules (ECC UDIMMs) lack the dedicated register chip needed to buffer electrical loads on control and address lines, making them electrically incompatible with motherboards that mandate RDIMMs.

Registered DIMMs (RDIMMs) feature an onboard hardware register that buffers address and control signals between the memory modules and the memory controller. This buffering reduces electrical loading on the controller, allowing systems to support high memory capacities and densities. Motherboards designed exclusively for RDIMMs cannot operate with Unbuffered DIMMs (UDIMMs)—even if those UDIMMs support ECC—because the electrical signaling and memory controller configuration differ fundamentally.

Step-by-Step Solution

Analyze the hardware requirements specified for the server motherboard.

The server motherboard mandates Registered DIMMs (RDIMMs) with ECC capability.

Registered memory places a hardware buffer (register) between the RAM module and the system memory controller to stabilize electrical loads in high-density server configurations.

Compare the installed memory modules with the motherboard's requirements.

The technician installed Unbuffered ECC DIMMs (ECC UDIMMs).

Although both RDIMMs and ECC UDIMMs support error checking and correction, UDIMMs lack the register chip required by registered-memory system architectures.

Determine the cause of the POST memory failure.

The memory controller cannot establish proper signal timing or communication with the unbuffered modules.

Mixing memory buffering types or using UDIMMs in an RDIMM-only motherboard prevents POST completion.

Key Concept

Registered RAM (RDIMM) vs. Unbuffered RAM (UDIMM) Compatibility

Question 354Question →

An office worker wants all multi-page documents to automatically print on both sides of the paper to reduce paper consumption. Which printer configuration setting should be enabled in the printer preferences?

Duplex printing

Collation

Landscape orientation

Port pooling

Show answer & explanation

Answer: Duplex printing

Answer

Duplex printing must be enabled to automatically print on both sides of the paper.

Duplex printing is the setting that instructs a printer's duplexing assembly to flip sheets of paper automatically so that text or graphics are printed on both the front and back sides.

Step-by-Step Solution

Identify the user's objective

The user needs print jobs to automatically utilize both sides of each sheet of paper.

Printing on both sides reduces paper usage.

Evaluate printer driver preferences and settings

Duplexing is the hardware feature and driver setting designed specifically for automatic two-sided printing.

Other settings such as collation, orientation, or port pooling serve different functions like organizing print copies, page direction, or load balancing.

Key Concept

Duplex printing configuration in multifunction devices and printer preferences

Question 355Question →

A network technician is auditing legacy and modern cabling infrastructure across an enterprise facility. Match each physical connector type on the left to its corresponding characteristic or primary deployment use-case on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

DB9 matches the legacy 9-pin serial interface for console access; ST matches the bayonet-style twist-lock fiber optic connector; RJ45 matches the 8-position modular connector for twisted-pair Ethernet; USB-C (Thunderbolt 4) matches the reversible 24-pin multi-protocol interface supporting 40 Gbps and PCIe tunneling.

Each connector type is paired correctly based on physical construction and network deployment role: DB9 is a 9-pin serial connector for console administration; ST is a twist-lock bayonet connector for fiber optics; RJ45 is an 8P8C modular connector for twisted-pair copper Ethernet; USB-C (Thunderbolt 4) is a 24-pin reversible connector supporting high-speed PCIe tunneling and video signals.

Step-by-Step Solution

Identify physical construction and function of DB9.

DB9 is a 9-pin D-sub connector used with RS-232 serial lines for switch/router console connections.

D-sub miniature connectors with 9 pins are serial console standard interfaces.

Identify physical construction and function of ST connector.

ST stands for Straight Tip, which uses a round metal bayonet twist-lock attachment mechanism on fiber optic cable.

Bayonet locking mechanisms distinguish ST connectors from snap-in LC or SC fiber connectors.

Identify physical construction and function of RJ45 connector.

RJ45 is the 8P8C modular connector used to plug twisted-pair copper cables into Ethernet network interface cards and switches.

Standard Ethernet copper connections rely on 8P8C twisted-pair termination.

Identify physical construction and function of USB-C (Thunderbolt 4).

USB-C physical connector has 24 pins arranged reversibly, supporting Thunderbolt 4 features like 40 Gbps bandwidth and PCIe signaling.

Thunderbolt 4 operates over the USB-C physical form factor to deliver high throughput and alternate modes.

Key Concept

Differentiating physical connector form factors, locking mechanisms, pin configurations, and protocol standards across network and peripheral cabling.

Question 356Question →

A field technician needs to manually add a network printer to a client workstation by establishing a direct connection over the local network using the printer's static IP address. What is the correct sequence of steps to configure this Standard TCP/IP printer connection in Windows?

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct order to configure a Standard TCP/IP network printer on a Windows workstation is: 1) Open Printers & Scanners settings and choose to add a printer manually, 2) Select adding via IP address/hostname using TCP/IP Device, 3) Enter the static IP address, 4) Select and install the appropriate print driver, and 5) Assign a printer name and complete the wizard.

Manually installing a network printer via an IP address follows a logical sequence: opening printer settings and choosing manual installation, selecting a TCP/IP port type, entering the target static IP address, installing the correct model driver, and assigning a display name.

Step-by-Step Solution

Initiate manual printer addition in Windows Settings

Launches the manual printer installation wizard.

Direct IP addition requires bypassing broadcast network discovery.

Select TCP/IP port creation

Configures the wizard to target a standard TCP/IP port device.

Direct IP network printing relies on Standard TCP/IP port architecture.

Specify network IP address

Binds the port to the exact IP address assigned to the printer.

The operating system needs the target IP address to establish network socket communication.

Associate vendor/model print driver

Installs the PCL or PostScript driver needed for page rendering.

Print jobs cannot be properly formatted without the model-specific driver.

Name printer and finalize setup

Completes installation and makes the printer available to local applications.

Assigning a friendly name is the final step before the printer is ready for user jobs.

Key Concept

Standard TCP/IP Port Printer Installation

Question 357Question →

A technician installs a high-performance PCIe x4 RAID controller card into the bottom physical PCIe x16 slot of a newly assembled workstation motherboard. After installing the card, the technician observes that the secondary onboard M.2 NVMe drive is no longer recognized by the system firmware during POST, while the primary M.2 NVMe drive functions normally. Which of the following motherboard design characteristics is responsible for this behavior?

Chipset PCIe lane multiplexing and bus sharing between the M.2 slot and the lower expansion slot

Selection of an M.2 drive operating on the legacy SATA protocol instead of the PCIe NVMe interface standard

Insufficient power allocation from the primary 24-pin ATX power supply connector to the motherboard expansion bus

Population of memory modules in single-channel slots, forcing the system controller to disable secondary storage buses

Show answer & explanation

Answer: Chipset PCIe lane multiplexing and bus sharing between the M.2 slot and the lower expansion slot

Answer

Chipset PCIe lane multiplexing and bus sharing between the M.2 slot and the lower expansion slot is responsible for disabling the M.2 drive.

Motherboard manufacturers often multiplex PCIe lanes from the chipset to provide multiple expansion slots and M.2 sockets on the same board. Because the chipset has a fixed total number of lanes, populating a shared physical expansion slot (such as the bottom PCIe x16 slot operating at x4 electrically) automatically disables or reroutes bandwidth away from specific onboard M.2 storage connectors.

Step-by-Step Solution

Analyze motherboard chipset PCIe lane distribution architectures.

Identify that modern motherboards have limited total PCIe lanes provided by the CPU and motherboard chipset.

Manufacturers implement flexible bus routing, where installing an expansion card in a shared slot dynamically reroutes lanes away from dedicated M.2 sockets.

Evaluate the symptom of the secondary M.2 slot failing after adding a PCIe x4 card.

Determine that the motherboard manual's lane-sharing block diagram dictates that populating the bottom physical slot disables the secondary M.2 slot.

This physical lane sharing prevents both devices from communicating with the chipset simultaneously.

Key Concept

PCIe Lane Multiplexing and Motherboard Connector Bus Sharing

Question 358Question →

Match each expansion card slot or power supply connector on the left with its correct hardware application on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

The EPS12V 8-pin connector pairs with processor power; the PCIe 6+2 pin connector pairs with auxiliary graphics card power; the PCIe x16 expansion slot pairs with high-end video card bandwidth requirements; and the PCIe x1 expansion slot pairs with lower-bandwidth expansion cards like sound cards or network adapters.

Each power connector and expansion slot is engineered for specific power or data throughput requirements: EPS12V feeds motherboard CPU VRMs, PCIe 6+2 supplies auxiliary GPU power, PCIe x16 provides high bandwidth for video cards, and PCIe x1 provides adequate bandwidth for basic peripheral cards.

Step-by-Step Solution

Identify CPU power supply requirements

The EPS12V 8-pin connector delivers power directly to the processor socket area.

Processors require dedicated electrical lines separate from PCIe expansion slots.

Identify graphics card auxiliary power requirements

The PCIe 6+2 pin connector supplies extra wattage directly to high-performance GPUs.

High-end GPUs consume more wattage than the maximum 75 W supplied directly through motherboard slots.

Differentiate expansion slot lane counts and bandwidth

PCIe x16 supports 16 lanes for maximum GPU throughput, while PCIe x1 supports 1 lane for basic expansion cards.

The number of PCIe lanes dictates the total data transfer speed available to the installed card.

Key Concept

Distinguishing power supply connector types and PCIe expansion slot throughput characteristics.

Question 359Question →

A system administrator is provisioning storage hardware for a rackmount server. The server features an onboard Serial Attached SCSI (SAS) host controller connected to a drive backplane, as well as an M.2 2280 expansion slot that is connected exclusively to four dedicated PCIe lanes (M-key) with no SATA controller routing. Which of the following statements regarding drive compatibility and protocol support for this configuration are correct? (Select TWO.)

Select all that apply

SATA hard drives can be installed into the SAS backplane and managed by the SAS host controller.

Only NVMe M.2 solid-state drives will function properly in the onboard M.2 expansion slot.

An M.2 SATA SSD will function in the onboard M.2 slot at SATA III speeds because all M-keyed slots support SATA drives.

An M.2 NVMe SSD installed in the motherboard slot will automatically revert to AHCI transfer mode if PCIe bandwidth is saturated.

Show answer & explanation

Answer: SATA hard drives can be installed into the SAS backplane and managed by the SAS host controller.; Only NVMe M.2 solid-state drives will function properly in the onboard M.2 expansion slot.

Answer

SATA hard drives are compatible with SAS controllers and backplanes, and the PCIe-only M.2 slot requires an NVMe M.2 solid-state drive.

SAS host controllers and backplanes are designed with backward compatibility for SATA drives via the Serial ATA Tunneling Protocol (STP). Furthermore, when an M.2 slot is wired exclusively to PCIe lanes, only NVMe drives (which communicate over PCIe) will function, as there is no underlying SATA bus connection for SATA-based M.2 drives.

Step-by-Step Solution

Evaluate SAS controller compatibility with SATA storage drives

SAS backplanes and controllers support SATA storage devices due to built-in Serial ATA Tunneling Protocol (STP) backward compatibility.

Understanding interface compatibility prevents unnecessary hardware purchases when attaching SATA drives to SAS controllers.

Evaluate M.2 slot bus routing and protocol requirements

Since the M.2 slot is wired exclusively to PCIe lanes with no SATA bus connection, an M.2 SATA drive will not be detected by the system BIOS/UEFI.

M.2 slots require both physical slot keying and appropriate motherboard bus routing (PCIe vs. SATA) to function with matching SSD protocols.

Key Concept

SAS backward compatibility with SATA drives and M.2 PCIe/NVMe protocol constraints

Question 360Question →

A field technician is deploying digital signage monitors that require a native 4K resolution at 60 Hz along with embedded multi-channel digital audio. The media player PCs feature standard DisplayPort 1.2 video outputs and USB 3.2 Gen 2 Type-C ports that lack DisplayPort Alternate Mode support. The monitors provide native DisplayPort 1.2 and HDMI 2.0 inputs. Which TWO cable or adapter configurations will successfully transmit both the 4K at 60 Hz video signal and digital audio from the media player to the display? (Select TWO.)

Select all that apply

A direct DisplayPort-to-DisplayPort cable connected from the media player to the monitor's DisplayPort input

An active DisplayPort-to-HDMI 2.0 adapter connected to the media player and paired with a High Speed HDMI cable to the monitor

A USB Type-C to HDMI cable connected directly from the media player's USB Type-C port to the monitor's HDMI input

A passive DisplayPort to Single-Link DVI-D cable attached to a DVI-to-HDMI adapter on the monitor

Show answer & explanation

Answer: A direct DisplayPort-to-DisplayPort cable connected from the media player to the monitor's DisplayPort input; An active DisplayPort-to-HDMI 2.0 adapter connected to the media player and paired with a High Speed HDMI cable to the monitor

Answer

The configurations that will successfully transmit 4K video at 60 Hz and digital audio are the direct DisplayPort-to-DisplayPort cable and the active DisplayPort-to-HDMI 2.0 adapter paired with a High Speed HDMI cable.

A direct DisplayPort-to-DisplayPort cable utilizes the native DisplayPort 1.2 specification to carry 4K video at 60 Hz and digital audio without conversion. An active DisplayPort-to-HDMI 2.0 adapter actively translates the signal bandwidth and clock timing to feed an HDMI 2.0 display input at 4K at 60 Hz with full audio support.

Step-by-Step Solution

Evaluate display interface standards for bandwidth capabilities

DisplayPort 1.2 provides a maximum bandwidth of 21.6 Gbps (HBR2), which natively supports 4K resolution at 60 Hz along with integrated audio streams.

Matching the cable standard to the output interface ensures sufficient bandwidth for 4K video and multi-channel audio.

Analyze conversion requirements between DisplayPort and HDMI

Converting DisplayPort 1.2 to HDMI 2.0 requires an active adapter to regenerate the signal clock and protocol for 4K at 60 Hz and audio.

Passive DisplayPort adapters rely on DP++ dual-mode falling back to lower clock speeds (typically 1080p/4K@30Hz for legacy passive adapters), so an active adapter is mandatory for full 4K@60Hz HDMI 2.0 conversion.

Assess alternative ports and legacy connector constraints

USB-C without Alt Mode cannot output video, and Single-Link DVI maxes out at 1920x1200 while lacking audio support.

Eliminates incorrect choices based on protocol support and bandwidth limitations.

Key Concept

DisplayPort Bandwidth Capabilities and Active Signal Conversion

Estimated Time:1m 30s

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