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Hardware

445 questions

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Question 101Question →

A desktop support technician is installing a new high-performance PCIe x16 graphics card and a PCIe sound card into a workstation. During the upgrade, the technician must configure the power supply connections and verify system power requirements. Which TWO of the following steps or guidelines must the technician follow to ensure safe and reliable operation? (Select TWO)

Select all that apply

Show answer & explanation

Answer: Connect dedicated 6+2 pin PCIe power connectors from the power supply directly to the graphics card rather than using 8-pin EPS12V CPU power cables.; Ensure the power supply provides sufficient total continuous wattage that covers total component consumption plus an additional power overhead margin for peak loads.

Answer

The technician must connect dedicated 6+2 pin PCIe auxiliary power cables directly to the graphics card (avoiding EPS12V CPU cables) and select a power supply with sufficient continuous wattage to cover total system draw plus a safety overhead margin.
Connecting dedicated PCIe 6+2 pin auxiliary power cables directly to the GPU ensures the correct pinout and amperage delivery. Additionally, provisioning a power supply with continuous capacity that accounts for all system hardware plus an overhead safety margin ensures stability during peak load conditions.

Step-by-Step Solution

1
Identify the correct auxiliary power cable type for expansion cards.
PCIe 6+2 pin connectors supply +12V power with the proper pinout matching graphics card power inputs.
Connecting EPS12V CPU power connectors to a graphics card can cause severe electrical damage due to incompatible pinouts and reversed polarities.
2
Calculate total system wattage requirements with an appropriate safety margin.
Sum the power consumption of all system components (CPU, GPU, RAM, storage, expansion cards) and add a 20% to 30% headroom margin.
Power supplies operate most efficiently and reliably when peak system power draw does not exceed 70% to 80% of the unit's rated capacity.

Key Concept

Power supply cable pinout identification and system wattage budgeting with overhead margins.
Question 102Question →

A logistics technician is deploying barcode label printers in a outdoor staging facility where shipping crates are exposed to high humidity and direct sunlight during summer months. The technician initially loaded standard direct thermal paper rolls into the printers. Within two weeks, warehouse staff report that printed shipping labels attached to outdoor crates have darkened completely, turning entirely black and unreadable. Which of the following media and printer technology configurations should the technician implement to permanently resolve this issue?

Show answer & explanation

Answer: Reconfigure the printer for thermal transfer printing using polyester synthetic labels and a resin ribbon cartridge.

Answer

Reconfigure the printer for thermal transfer printing using polyester synthetic labels and a resin ribbon cartridge.
Direct thermal paper uses a heat-sensitive chemical layer that darkens whenever heat is applied. When exposed to direct sunlight and high ambient temperatures, the entire surface of direct thermal paper reacts chemically and turns black. To ensure labels remain readable in outdoor, high-heat environments, the technician must switch to thermal transfer technology, which melts a durable resin ribbon onto heat- and UV-resistant synthetic labels.

Step-by-Step Solution

1
Analyze the failure cause of the current printing technology under environmental stress.
Direct thermal paper relies on a heat-sensitive chemical coating that darkens when exposed to heat. Continuous sunlight and outdoor heat activate this coating across the entire label, turning it black.
Direct thermal consumables are designed for short-term indoor use (e.g., receipts or short-duration shipping labels) and cannot withstand UV exposure or high ambient heat.
2
Evaluate the correct printer technology and consumable type required for harsh environments.
Thermal transfer printers use a thermal printhead to transfer ink from a ribbon (wax, wax-resin, or pure resin) onto specialized media like polyester or vinyl labels.
Resin ribbons combined with synthetic labels provide high resistance to heat, moisture, abrasion, and UV degradation.

Key Concept

Thermal Transfer vs. Direct Thermal Printing and Consumable Selection
Question 103Question →

An IT technician is configuring a desktop workstation to drive three independent external monitors using a single output port on the graphics card. The deployment plan specifies daisy-chaining the monitors sequentially from one screen to the next. Which display interface standard natively supports this Multi-Stream Transport (MST) configuration?

Show answer & explanation

Answer: DisplayPort

Answer

DisplayPort is the correct display interface standard, as it natively supports Multi-Stream Transport (MST) for daisy-chaining multiple independent displays from a single port.
DisplayPort (v1.2 and later) introduces Multi-Stream Transport (MST), allowing a host computer to transmit multiple discrete video streams across a single DisplayPort interface. Compatible monitors with a DisplayPort Out port can pass subsequent streams down the chain to additional monitors.

Step-by-Step Solution

1
Identify the key requirement in the scenario.
The scenario calls for connecting multiple independent monitors to a single port using a daisy-chain setup.
Understanding display transport features is necessary to select the correct cable interface standard.
2
Evaluate candidate display standards against Multi-Stream Transport (MST) capabilities.
DisplayPort 1.2 and newer standards support MST, allowing a graphics card to send distinct display streams through a single DisplayPort output to monitors equipped with DisplayPort Out ports.
Legacy formats (DVI, VGA) and standard HDMI do not support native display daisy-chaining.

Key Concept

DisplayPort Multi-Stream Transport (MST) and Daisy-Chaining
Question 104Question →

A systems administrator is deploying a new multifunction device (MFD) to be managed centrally through a corporate print server. Place the following configuration steps in the correct chronological order from first to last to ensure proper network integration and user access.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct chronological sequence is: First, configure a static IP address on the MFD interface. Second, create a Standard TCP/IP port on the print server pointing to the MFD IP address. Third, install the manufacturer print driver on the server. Fourth, enable printer sharing and configure security group permissions.
The correct order follows the physical-to-logical deployment lifecycle: establish network host addressing on the device first, bind the server port to that address second, load the device driver on the queue third, and grant network client access through queue sharing fourth.

Step-by-Step Solution

1
Assign network IP configuration to the MFD hardware.
The device achieves stable network layer access with a fixed host address.
Print servers require a reliable static IP address to prevent port binding loss caused by dynamic DHCP leasing changes.
2
Add a Standard TCP/IP port on the central print server using the MFD static IP.
The server establishes a network communication path to the MFD.
The server needs a designated network port to forward RAW (port 9100) or LPR print jobs directly to the MFD network interface.
3
Install the vendor driver on the server print queue.
The server gains the ability to render print jobs using the specific feature set (duplexing, tray selection) of the device.
Without the correct driver installed on the host queue, jobs cannot be translated into machine-readable page description language.
4
Configure printer sharing and security permissions.
Authorized network users can discover, connect to, and print through the shared server queue.
Sharing the queue and applying access control lists controls which domain users or groups are permitted to print to the deployment.

Key Concept

Centralized Network Printer Server Configuration and Deployment Workflow
Question 105Question →

A desktop technician is servicing hardware for a creative design firm and needs to upgrade memory across both laptop mobile workstations and desktop systems. Which TWO of the following statements correctly identify key RAM form factors and dual-channel installation rules for these platforms?

Select all that apply

Show answer & explanation

Answer: Mobile workstations utilize SO-DIMM modules, which have a smaller physical footprint and distinct pin keying compared to desktop DIMMs.; To achieve dual-channel memory performance on desktop motherboards, matching modules must be installed into designated slot pairs according to motherboard specifications.

Answer

The statement that mobile workstations utilize SO-DIMM modules with a smaller physical footprint, and the statement that dual-channel performance requires installing matching modules into designated slot pairs, are both correct.
Mobile workstations require SO-DIMM modules due to compact physical dimensions. For dual-channel operation, motherboard manufacturers require installing identical memory sticks into specific channel-separated slots, which provides twice the bus bandwidth compared to single-channel mode.

Step-by-Step Solution

1
Identify the form factor requirement for mobile workstations versus desktop motherboards.
Laptops and mobile workstations require SO-DIMM form factors due to spatial constraints, whereas desktop computers use full-sized DIMMs.
SO-DIMMs and standard DIMMs have different dimensions and pin configurations, rendering desktop DIMMs incompatible with laptops.
2
Analyze the configuration criteria for enabling dual-channel memory operation.
Modules must be installed in alternating or manufacturer-specified slot pairs (such as Slot A1 and Slot B1) across separate channels.
Installing modules into adjacent slots on standard four-slot motherboards often populates a single channel, failing to activate dual-channel bus architecture.

Key Concept

RAM Form Factors and Dual-Channel Slot Population
Question 106Question →

A computer technician is assembling a desktop workstation and connecting cables from the power supply unit (PSU) to the motherboard. After successfully connecting the 24-pin ATX main power connector, the technician needs to provide dedicated auxiliary power to the processor socket. Which of the following power connectors should be plugged into the 8-pin port located adjacent to the CPU socket?

Show answer & explanation

Answer: 8-pin EPS12V power connector

Answer

The 8-pin EPS12V power connector is the correct choice for supplying dedicated auxiliary power directly to the CPU socket on the motherboard.
The 8-pin EPS12V power connector (or 4+4 pin CPU power cable) delivers dedicated +12V power directly to the processor via motherboard voltage regulator modules located adjacent to the CPU socket.

Step-by-Step Solution

1
Identify the power requirements for the central processing unit (CPU).
Modern CPUs consume significant electrical current beyond what the 24-pin ATX motherboard main connector can deliver.
Dedicated +12V power lines are required near the processor socket to feed the CPU Voltage Regulator Module (VRM).
2
Evaluate the matching motherboard header and cable standard.
The 8-pin port located near the CPU socket matches the EPS12V standard (often split as a 4+4 pin connector on modular PSUs).
Connecting an EPS12V cable ensures correct voltage delivery and prevents system instability or POST failure.

Key Concept

Motherboard Power Connectors (EPS12V vs PCIe vs ATX)
Estimated Time:1m 0s
Question 107Question →

A system administrator is upgrading a desktop workstation by installing a dedicated PCI Express graphics card rated at 250 W250\text{ W} TDP. The existing system components (CPU, motherboard, RAM, and storage) draw a combined total of 165 W165\text{ W} under peak load. To maintain hardware longevity and efficiency, the workstation's total continuous power draw must not exceed 80%80\% of the power supply unit's (PSU) total rated capacity. Which of the following represents the minimum standard PSU wattage rating required for this upgraded system?

Show answer & explanation

Answer: 550 W550\text{ W}

Answer

A 550 W550\text{ W} power supply unit is the minimum standard rating required.
Total continuous power draw is calculated by adding the GPU power (250 W250\text{ W}) to the rest of the workstation components (165 W165\text{ W}), resulting in 415 W415\text{ W}. To meet the requirement that 415 W415\text{ W} does not exceed 80%80\% of total rating, calculate 4150.80=518.75 W\frac{415}{0.80} = 518.75\text{ W}. The smallest standard PSU rating that meets or exceeds 518.75 W518.75\text{ W} is 550 W550\text{ W}.

Step-by-Step Solution

1
Calculate total peak component power draw
250 W+165 W=415 W250\text{ W} + 165\text{ W} = 415\text{ W} continuous load
Summing GPU power consumption with the combined draw of all other system hardware gives total system demand.
2
Apply the 80% maximum workload constraint to find minimum required PSU wattage
415 W0.80=518.75 W\frac{415\text{ W}}{0.80} = 518.75\text{ W}
To ensure peak system load does not exceed 80% of PSU capacity, total draw is divided by 0.80.
3
Select the next highest standard PSU capacity rating
A 550 W550\text{ W} power supply unit
Because power supplies are sold in discrete capacity increments, the minimum standard rating exceeding 518.75 W518.75\text{ W} is 550 W550\text{ W}.

Key Concept

Power supply sizing calculations and recommended continuous load overhead margins
Estimated Time:1m 30s
Question 108Question →

A field service technician is performing a scheduled preventive maintenance kit replacement on a high-volume departmental electrophotographic (EP) laser printer. The kit includes a new fuser assembly, transfer roller, pick rollers, and separation pads. Which of the following procedures must the technician perform to ensure technician safety and proper operational tracking during this service? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: Power off the printer and allow the fuser assembly to cool down before handling or removing it.; Reset the printer's maintenance page counter using the control panel or administrative web interface after component installation.

Answer

The technician must power off the printer and allow the fuser assembly to cool down before handling, and must reset the maintenance page counter after replacing components.
Safely servicing an EP printer requires turning off the unit and allowing the fuser to cool to avoid thermal injury. Following physical maintenance, the technician must reset the printer's maintenance page counter so the firmware accurately logs the maintenance interval.

Step-by-Step Solution

1
Identify safety precautions required for laser printer component replacement.
Recognize that the fuser assembly reaches thermal temperatures capable of causing severe burns, requiring powering down and cooling time.
Safety procedures mandate thermal protection before servicing hot internal parts like fusers.
2
Evaluate proper cleaning and maintenance techniques for internal printer components.
Reject standard shop vacuums and alcohol solvents on transfer rollers due to ESD and rubber degradation hazards.
Specialized ESD-safe toner vacuums must be used, and transfer rollers must be kept free of liquid chemicals.
3
Identify post-maintenance administrative tracking requirements.
Reset the printer's internal maintenance page counter.
Resetting the counter clears maintenance prompts and restarts the cycle count for future preventive maintenance scheduling.

Key Concept

Laser Printer Maintenance Safety and Procedure
Question 109Question →

An IT technician is configuring an enterprise multifunction device (MFD) to send scanned financial records directly to a remote storage server using Secure File Transfer Protocol (SFTP). Initial connection tests fail because the MFD is currently set to default unencrypted file transfer settings. Which network port must the technician specify in the MFD scan configuration menu to enable SFTP communications?

Show answer & explanation

Answer: Port 22

Answer

Port 22 is required for SFTP communications on the multifunction device.
Secure File Transfer Protocol (SFTP) runs over Secure Shell (SSH), which uses TCP port 22 by default. When configuring an MFD to scan directly to an SFTP server, the destination port must be set to 22 to establish an encrypted tunnel for authentication and document transmission.

Step-by-Step Solution

1
Identify the required network protocol for the MFD scan-to-file destination
The destination server requires Secure File Transfer Protocol (SFTP).
SFTP relies on Secure Shell (SSH) for transport layer security.
2
Determine the standard TCP port associated with SSH/SFTP
TCP port 22 is the standard port for SSH and SFTP connections.
Standard FTP uses port 21, whereas SFTP routes all traffic encrypted over port 22.
3
Update the MFD scanner destination profile settings
The MFD successfully negotiates an encrypted session over port 22 and delivers scan files.
Matching the MFD protocol port settings with the target server firewall and service configuration resolves connection failures.

Key Concept

Multifunction Device Network Scan Protocol and Port Configuration
Estimated Time:1m 0s
Question 110Question →

A desktop technician is organizing video adapter inventory for an office workstation rollout. The deployment requires connecting workstation graphics cards to both modern digital displays and legacy analog projectors. Which of the following statements correctly describe DVI connector signal compatibility and capabilities? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: DVI-I connectors integrate both analog and digital video signals, allowing a passive DVI-to-VGA adapter to function.; DVI-D connectors support digital signals only, preventing passive pin adapters from delivering an analog VGA signal.

Answer

DVI-I connectors integrate both analog and digital video signals, allowing a passive DVI-to-VGA adapter to function, and DVI-D connectors support digital signals only, preventing passive pin adapters from delivering an analog VGA signal.
DVI-I (Integrated) includes dedicated pin channels for both digital data and analog RGB signals, which enables passive pass-through adapters to route the analog pins directly to a VGA connector. Conversely, DVI-D (Digital) lacks the physical analog pins around the ground blade, meaning it cannot output an analog signal without an active digital-to-analog converter box.

Step-by-Step Solution

1
Identify the signal characteristics of DVI-I connectors.
DVI-I (Integrated) features four additional pins around the flat blade that carry analog RGB signals alongside the digital pins.
Because analog signals are natively present on DVI-I, a low-cost passive pin adapter can route those pins directly to a VGA (DB-15) connector.
2
Identify the signal characteristics of DVI-D connectors.
DVI-D (Digital-only) connectors omit the analog pins around the flat blade.
Without physical analog signal pins, DVI-D ports cannot output an analog signal to a VGA monitor via a simple passive adapter; an active signal converter is required.
3
Evaluate the statements regarding DVI-A and USB-C adapter claims.
DVI-A supports analog video only (no digital signal), while DVI-D lacks analog hardware capabilities regardless of external USB-C adapters.
DVI-A cannot transmit digital signals, and DVI-D hardware cannot natively output analog signals.

Key Concept

DVI interface signal types (DVI-I vs DVI-D vs DVI-A) and passive adapter compatibility
Question 111Question →

A technician is upgrading a desktop computer system to a modern platform that specifies DDR5 SDRAM support. The client requests to reuse high-performance DDR4 RAM modules from their previous system to save costs. Upon inspecting the new motherboard memory slots, which of the following explains why the DDR4 memory modules cannot be physically installed?

Show answer & explanation

Answer: DDR5 DIMMs feature a different notch position along the pin contacts to prevent accidental insertion of incompatible DDR4 modules.

Answer

DDR5 DIMMs feature a different notch position along the pin contacts to prevent accidental insertion of incompatible DDR4 modules.
Although both desktop DDR4 and DDR5 memory modules (DIMMs) feature 288 contact pins, the mechanical alignment notch on the bottom edge of the module is shifted to a different position for DDR5. This keying mechanism ensures that older 1.2V DDR4 modules cannot be physically inserted into 1.1V DDR5 slots, preventing damage to the hardware.

Step-by-Step Solution

1
Analyze the physical RAM module standards and motherboard compatibility.
DDR4 and DDR5 desktop memory modules both have 288 pins, but they operate at different voltages (1.2V for DDR4 vs 1.1V for DDR5) and use different pin layout architectures.
Installing incompatible memory can cause electrical damage to the motherboard and RAM.
2
Identify the key physical mechanism preventing wrong module insertion.
Manufacturers shift the location of the mechanical key notch on the bottom pin connector between RAM generations.
The altered notch position physically blocks a DDR4 module from fitting into a DDR5 motherboard slot.

Key Concept

RAM Keying and Form Factor Compatibility
Question 112Question →

A system builder is installing a Mini-ITX motherboard inside a standard ATX mid-tower chassis. Which of the following statements correctly describe the mounting and power connector compatibility considerations for this installation? (Select TWO.)

Select all that apply

Show answer & explanation

Answer: The Mini-ITX motherboard mounting holes align directly with four standard ATX chassis standoff locations.; The motherboard can be powered directly using a standard 24-pin ATX main power supply connector.

Answer

The correct statements are that Mini-ITX motherboard mounting holes align directly with four standard ATX chassis standoff locations, and the motherboard can be powered directly using a standard 24-pin ATX main power supply connector.
Mini-ITX motherboards are engineered to be backward compatible with standard ATX computer cases. They share the same rear I/O shield dimensions and align with four of the standard ATX mounting standoffs. Additionally, Mini-ITX motherboards utilize standard 24-pin ATX power supply connectors.

Step-by-Step Solution

1
Evaluate chassis mounting compatibility for Mini-ITX in an ATX enclosure.
Identify that Mini-ITX (170 mm×170 mm170 \text{ mm} \times 170 \text{ mm}) shares four standardized standoff hole placements with the full ATX form factor specification.
Backward compatibility ensures smaller form factor boards can be mounted in larger compatible cases without custom brackets.
2
Evaluate power connector specification requirements.
Confirm that standard Mini-ITX system boards use standard 24-pin ATX main power connectors.
Standard desktop ATX power supply units (PSUs) supply standard voltages (+3.3V, +5V, +12V) through standard 24-pin P1 connectors across ATX, Micro-ATX, and Mini-ITX motherboards.

Key Concept

Mini-ITX Form Factor Backward Compatibility and Standard Connectors
Question 113Question →

A technician is configuring internal hardware components and power connections for a newly assembled desktop system. Match each power supply connector or expansion slot standard on the left to its correct interface description or application requirement on the right.

Click a left item, then click its matching right item

Items

EPS12V 8-pin connector
PCIe 6+2 pin connector
PCIe x1 expansion slot
PCIe x16 expansion slot

Matches

Show answer & explanation

Answer

EPS12V 8-pin connector matches dedicated CPU power; PCIe 6+2 pin connector matches auxiliary expansion card/GPU power; PCIe x1 slot matches single-lane peripheral cards; PCIe x16 slot matches high-bandwidth video cards.
Each connector and expansion slot is correctly matched to its system role: EPS12V powers the motherboard CPU socket region, PCIe 6+2 pin supplies extra power directly to expansion cards, PCIe x1 houses low-speed peripheral cards, and PCIe x16 supports high-speed graphics cards.

Step-by-Step Solution

1
Distinguish between power supply cabling standards for processing units versus peripheral expansion cards.
EPS12V delivers power to the processor VRM, while PCIe 6+2 pin supplies auxiliary power to high-TDP PCIe expansion cards.
Keying and voltage wiring differ between EPS12V and PCIe power connectors to prevent incorrect insertion and electrical damage.
2
Differentiate PCIe slot capabilities based on physical throughput and lane allocation.
PCIe x1 provides a single lane for low-bandwidth add-in cards, whereas PCIe x16 provides 16 lanes for maximum data bandwidth needed by dedicated graphics cards.
PCIe throughput scales directly with the number of operational data lanes.

Key Concept

Power supply connector keying specifications and PCIe expansion slot bandwidth applications.
Question 114Question →

An IT technician is connecting a workstation with a newly installed dedicated graphics card to an older projector that only accepts a VGA (DB-15) input. The workstation's graphics card provides only a DVI-D output port. The technician connects the display using a passive DVI-to-VGA adapter, but the projector displays a 'No Signal' message upon powering on. Which of the following best explains why this connection failed?

Show answer & explanation

Answer: DVI-D ports output digital signals only and lack the analog pinouts required for a passive VGA adapter to function.

Answer

DVI-D ports output digital signals only and lack the analog pinouts required for a passive VGA adapter to function.
DVI-D stands for DVI-Digital. It carries only digital signals. A passive adapter does not contain electronic circuitry to convert digital signals to analog signals; it merely redirects pins. Because VGA is strictly analog and DVI-D lacks the four analog pins present in DVI-I or DVI-A, a passive adapter cannot pass video to a VGA display. An active digital-to-analog converter is required.

Step-by-Step Solution

1
Identify the video output standard on the graphics card and the input standard on the projector.
The graphics card outputs DVI-D (Digital only), while the projector accepts VGA (Analog DB-15).
Determining signal compatibility is the first step in troubleshooting display connectivity.
2
Evaluate the capabilities of a passive adapter between DVI-D and VGA.
A passive adapter only pin-maps signals without performing active signal conversion; DVI-D lacks analog pins (C1-C4 pins found around the flat blade in DVI-I/DVI-A).
Without analog pins present in the source port, no analog signal reaches the VGA connector.
3
Determine the required solution to establish a working display connection.
An active DVI-D to VGA converter powered by an integrated chipset is necessary to translate digital signals to analog.
Active conversion translates digital packets to analog voltage waveforms required by VGA.

Key Concept

DVI Signal Formats and Adapter Compatibility
Question 115Question →

A system administrator is reviewing memory specifications for upcoming hardware deployments across desktop workstations, mobile devices, and enterprise servers. Match each RAM specification or module type to its corresponding technical description.

Click a left item, then click its matching right item

Items

DDR4 SO-DIMM
DDR5 UDIMM
Sideband ECC UDIMM
Registered DIMM (RDIMM)

Matches

Show answer & explanation

Answer

DDR4 SO-DIMM matches the 260-pin small-outline module description; DDR5 UDIMM matches the module featuring an onboard PMIC and internal dual 32-bit subchannels; Sideband ECC UDIMM matches the module utilizing an expanded 72-bit bus width for error correction; and Registered DIMM (RDIMM) matches the enterprise module equipped with an inline register to reduce memory controller loading.
Each RAM specification is accurately matched based on its distinct pin count, electrical power architecture, error correction bus width, or server signal buffering capabilities.

Step-by-Step Solution

1
Analyze mobile and compact form factor characteristics.
Identified DDR4 SO-DIMM as the 260-pin small-outline memory module.
SO-DIMMs are physically smaller than standard DIMMs and DDR4 variants specifically feature 260 pins.
2
Evaluate memory generation innovations regarding power and channels.
Matched DDR5 UDIMM to the onboard PMIC and dual 32-bit subchannel design.
DDR5 shifts power management from the motherboard to an on-module PMIC and introduces split 32-bit subchannels per stick.
3
Examine error-checking data bus implementations.
Matched Sideband ECC UDIMM to the 72-bit bus width specification.
Sideband ECC uses 8 parity/check bits alongside the 64-bit data bus (64 + 8 = 72 bits) to detect and correct single-bit errors.
4
Differentiate server buffering memory types from workstation memory.
Matched Registered DIMM (RDIMM) to the inline register functionality.
RDIMMs buffer control and address lines to diminish capacitive loading on the server's CPU memory controller.

Key Concept

RAM Form Factors, DDR Specifications, and Error-Correcting Architecture
Estimated Time:1m 30s
Question 116Question →

A network administrator is hardening a newly deployed multifunction device (MFD) that processes confidential personnel records. Security policies require that document data residing on the printer's internal disk must be protected from unauthorized physical extraction and that print jobs must not remain unattended in the output tray. Which TWO configuration settings should the administrator enable on the device to meet these security requirements?

Select all that apply

Show answer & explanation

Answer: Local storage hard drive encryption; Secure Print (PIN/badge user authentication)

Answer

Enabling local storage hard drive encryption and configuring Secure Print (PIN/badge authentication) fulfills the data confidentiality and unattended document retrieval security mandates.
To satisfy security requirements for data at rest and physical document collection, hard drive encryption protects cached documents stored on the MFD's internal drive, while Secure Print ensures documents are only printed when the user physically authenticates at the device control panel.

Step-by-Step Solution

1
Identify the threat of unauthorized physical disk access and data remanence on the MFD.
Local storage hard drive encryption protects stored job data and swap files on the MFD's internal drive from physical theft or extraction.
MFDs utilize internal storage drives to buffer large print jobs and store scanned documents, making drive encryption essential for confidential data compliance.
2
Identify the threat of sensitive hard-copy documents being left unattended in the paper tray.
Secure Print forces job release only after user authentication at the physical device.
Requiring a PIN, password, or badge tap at the MFD console ensures that the user is physically present to collect sensitive prints as soon as they are generated.

Key Concept

MFD Hardening and Print Security Features
Question 117Question →

An IT specialist is assembling a dedicated virtualization host system with the following estimated power requirements:

- Processor (CPU): 140 W140\text{ W}
- Auxiliary graphics card (GPU): 160 W160\text{ W}
- Quad-port PCIe network expansion card: 45 W45\text{ W}
- Four enterprise SATA SSDs: 10 W10\text{ W} each (40 W40\text{ W} total)
- Motherboard, system RAM, and chassis fans: 95 W95\text{ W}

To ensure operational efficiency and maintain power headroom, the organization's policy requires that the total system power draw under full load must not exceed 60%60\% of the power supply unit's (PSU) maximum rated capacity. Which of the following is the minimum PSU wattage rating required to meet these specifications?

Show answer & explanation

Answer: 800 W800\text{ W}

Answer

The minimum power supply unit rating required is 800 W800\text{ W}.
The total power draw of the system under peak load is 480 W480\text{ W} (140 W+160 W+45 W+40 W+95 W140\text{ W} + 160\text{ W} + 45\text{ W} + 40\text{ W} + 95\text{ W}). To ensure that 480 W480\text{ W} does not exceed 60%60\% of the power supply's total capacity, the required minimum rating is calculated as 480 W0.60=800 W\frac{480\text{ W}}{0.60} = 800\text{ W}.

Step-by-Step Solution

1
Calculate the total power consumption of all system components under peak load.
Total peak load = 140 W (CPU)+160 W (GPU)+45 W (NIC)+40 W (4x SSDs)+95 W (Motherboard/RAM/Fans)=480 W140\text{ W} \text{ (CPU)} + 160\text{ W} \text{ (GPU)} + 45\text{ W} \text{ (NIC)} + 40\text{ W} \text{ (4x SSDs)} + 95\text{ W} \text{ (Motherboard/RAM/Fans)} = 480\text{ W}.
Accurately summing all component power draws establishes the baseline load requirement.
2
Apply the 60%60\% maximum continuous workload constraint to determine the required total PSU rating capacity.
Minimum PSU Wattage = Total Peak LoadMax Load Percentage=480 W0.60=800 W\frac{\text{Total Peak Load}}{\text{Max Load Percentage}} = \frac{480\text{ W}}{0.60} = 800\text{ W}.
Dividing the peak load by 0.600.60 ensures the 480 W480\text{ W} demand consumes exactly 60%60\% of the PSU rating.

Key Concept

Power supply unit (PSU) wattage sizing with continuous load headroom calculation.
Estimated Time:1m 30s
Question 118Question →

A desktop support technician is auditing video hardware to ensure workstation graphics cards are connected using the appropriate interfaces for specialized display features. Match each video interface standard on the left with its primary technical capability or signal characteristic on the right.

Click a left item, then click its matching right item

Items

DisplayPort 1.4
DVI-D Dual-Link
DVI-I Single-Link
HDMI 2.0

Matches

Show answer & explanation

Answer

DisplayPort 1.4 matches with Multi-Stream Transport (MST) daisy-chaining support; DVI-D Dual-Link matches with purely digital dual TMDS link signals up to 2560 × 1600; DVI-I Single-Link matches with combined digital and analog signal pins up to 1920 × 1200; HDMI 2.0 matches with 4K at 60 Hz support and Audio Return Channel (ARC).
Each display standard is matched to its key physical and signal specifications: DisplayPort 1.4 is distinguished by its support for MST daisy-chaining; DVI-D Dual-Link provides purely digital dual-channel TMDS signals up to 2560 × 1600; DVI-I Single-Link includes integrated analog pins with a single TMDS channel capped at 1920 × 1200; and HDMI 2.0 provides 4K at 60 Hz along with Audio Return Channel (ARC).

Step-by-Step Solution

1
Identify the distinct features of DisplayPort.
DisplayPort natively supports Multi-Stream Transport (MST), allowing multiple display monitors to be driven in a daisy-chain configuration from a single DisplayPort connector.
MST is a unique feature of DisplayPort specifications starting from version 1.2.
2
Differentiate between DVI-D Dual-Link and DVI-I Single-Link pinouts and capabilities.
DVI-D provides digital-only signals (no analog pins around the flat blade) and Dual-Link provides double TMDS bandwidth (supporting 2560 × 1600). DVI-I incorporates Integrated digital and analog pins, with Single-Link limited to 1920 × 1200.
The 'D' in DVI-D stands for Digital-only, while 'I' stands for Integrated. Dual-link adds pins for a second TMDS data channel.
3
Match the HDMI 2.0 specification to its standard features.
HDMI 2.0 added support for 4K video at 60 Hz along with consumer audio features such as Audio Return Channel (ARC).
HDMI 2.0 increased interface throughput to 18 Gbps to accommodate higher frame rates at 4K resolution.

Key Concept

Display Cables and Connectors
Question 119Question →

A desktop technician is connecting chassis components and power cables to internal system board locations. Match each motherboard connector or header on the left with its primary function or component connection on the right.

Click a left item, then click its matching right item

Items

24-pin ATX Main Power Connector
HD Audio Front Panel Header
19-pin USB 3.2 Gen 1 Header
Chassis Intrusion Header

Matches

Show answer & explanation

Answer

The 24-pin ATX main power connector pairs with supplying primary DC voltages from the PSU. The HD Audio header pairs with connecting front 3.5mm audio jacks. The 19-pin USB 3.2 Gen 1 header pairs with providing 5 Gbps data lines to front panel USB ports. The chassis intrusion header pairs with connecting enclosure micro-switches for security logging.
Each motherboard cable connection and internal header serves a dedicated purpose: the 24-pin ATX connector supplies primary multi-rail power, the HD Audio header routes front panel audio jacks, the 19-pin header handles SuperSpeed front USB connectivity, and the chassis intrusion pin header operates security monitoring switches.

Step-by-Step Solution

1
Identify power delivery connectors versus peripheral communications headers.
The 24-pin ATX connector is the primary multi-rail power delivery interface from the PSU.
Motherboards rely on the 24-pin main connector for overall power distribution across standard voltage rails.
2
Differentiate between audio, high-speed data, and security monitoring headers.
HD Audio links 3.5mm jacks, 19-pin USB headers support 5 Gbps front ports, and the intrusion header routes to chassis tamper switches.
Each internal header uses specific pin configurations tailored to particular chassis pass-through functions.

Key Concept

Motherboard Connectors and Internal Headers
Question 120Question →

An IT support technician is servicing an impact (dot matrix) printer in a freight warehouse that prints four-part carbonless shipping manifests. The warehouse supervisor reports that while text on the top original page appears crisp and legible, the text on the third and fourth duplicate sheets is extremely faint and unreadable. Which of the following is the most appropriate action to resolve this issue?

Show answer & explanation

Answer: Adjust the printhead gap lever closer to the platen to increase impact force on multi-part media.

Answer

Adjust the printhead gap lever closer to the platen to increase impact force on multi-part media.
The correct action is to adjust the printhead gap lever closer to the platen. Impact (dot matrix) printers utilize a mechanical adjustment lever that changes the clearance between the printhead pins and the platen. For multi-part forms, narrowing this clearance ensures that the mechanical impact of the pins penetrates through the top sheet to trigger the chemical reaction or pressure impression on the lower carbonless copies.

Step-by-Step Solution

1
Analyze the printer technology and reported symptom.
Identified an impact (dot matrix) printer failing to produce clear impressions on the lower sheets of multi-part carbonless forms.
Impact printers use mechanical pins to strike through multiple paper layers; faint lower copies indicate insufficient physical impact depth/force.
2
Evaluate the mechanical adjustment mechanisms available on impact printers.
Located the printhead gap lever (platen gap lever).
The printhead gap lever changes the physical distance between the printhead pins and the platen roller to accommodate varying paper thicknesses.
3
Select the correct maintenance procedure.
Decreasing the printhead gap distance ensures pins strike with adequate mechanical force across all four copy sheets.
Thicker media or multi-part forms require narrowing the clearance to allow full pin penetration and force transfer.

Key Concept

Impact Printer Maintenance and Platen Gap Adjustment
Estimated Time:1m 0s
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