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Question 381

Which motherboard feature is specifically designed to protect against damage caused by static electricity when handling internal components?

1. Heat spreader
2. CMOS battery
3. Voltage regulator
4. ESD protection

Correct Answer: 4

Explanation

Electrostatic discharge, or ESD, can damage sensitive electronic components such as memory modules, processors, and expansion cards. ESD protection involves practices and equipment designed to safely control static electricity while working inside a computer. A technician may use an antistatic wrist strap, an ESD mat, and proper grounding procedures. Heat spreaders help dissipate thermal energy, CMOS batteries maintain certain motherboard settings, and voltage regulators manage electrical power. Therefore, ESD protection is specifically associated with preventing static-related hardware damage.

Question 382

A laptop automatically reduces processor performance when its internal temperature becomes excessive. Which feature is responsible for this behavior?

1. Thermal throttling
2. Virtual memory
3. Secure Boot
4. Hypervisor

Correct Answer: 1

Explanation

Thermal throttling reduces processor performance when temperatures reach a level that could cause instability or hardware damage. By lowering clock speeds or reducing power consumption, the system can decrease heat generation and allow temperatures to return to a safer range. This behavior is common in laptops because their compact designs provide less cooling capacity than many desktop systems. Virtual memory extends available memory using storage, Secure Boot protects the startup process, and a hypervisor manages virtual machines. Therefore, thermal throttling provides the described protection.

Question 383

Which storage technology has no moving mechanical parts and is commonly used to improve laptop durability and responsiveness?

1. Magnetic tape
2. Solid-state drive
3. Optical disc
4. Floppy disk

Correct Answer: 2

Explanation

A solid-state drive, or SSD, stores data using flash memory rather than spinning platters and mechanical read/write heads. Because SSDs have no moving mechanical components, they generally provide faster access times, lower latency, and better resistance to physical shock than traditional hard disk drives. SSDs are therefore widely used in laptops and modern desktop computers. Magnetic tape, optical discs, and floppy disks rely on different storage mechanisms and generally offer lower performance or more limited practical use. Therefore, the SSD is the appropriate choice.

Question 384

Which connector is commonly used for a traditional telephone line connecting a landline handset or modem?

1. RJ45
2. USB Type-C
3. RJ11
4. HDMI

Correct Answer: 3

Explanation

RJ11 connectors are commonly associated with traditional telephone wiring and are smaller than the RJ45-style connectors commonly used for Ethernet networking. Telephone lines may connect handsets, fax machines, or certain types of modems through RJ11 connections. RJ45 is primarily associated with Ethernet networking, USB Type-C is a modern multipurpose digital connector, and HDMI is designed for digital audio and video transmission. Recognizing the physical differences between RJ11 and RJ45 helps technicians avoid connecting telephone equipment to the wrong network interface.

Question 385

Which power connector is commonly used to provide additional CPU power on a modern desktop motherboard?

1. EPS12V
2. SATA power
3. Molex peripheral
4. PCIe x16

Correct Answer: 1

Explanation

The EPS12V connector provides dedicated power to the processor through the motherboard. Modern desktop motherboards commonly use a 4-pin, 8-pin, or related CPU power connection supplied by the power supply. This connector is separate from the main motherboard power connector and is important for stable CPU operation, particularly under heavier workloads. SATA power connectors are primarily used for storage devices, Molex is an older peripheral power connector, and PCIe x16 describes an expansion slot rather than a CPU power connector. Therefore, EPS12V is correct.

Question 386

Which Windows feature can automatically create restore points that allow certain system settings and files to be reverted to an earlier state?

1. BitLocker
2. System Restore
3. Disk Cleanup
4. Windows Defender Firewall

Correct Answer: 2

Explanation

System Restore creates restore points containing information that allows supported Windows system components and configuration settings to be returned to an earlier state. It can be useful after a problematic driver installation, software change, or configuration modification. System Restore is not a replacement for a complete backup because it is not intended to preserve all personal files. BitLocker provides drive encryption, Disk Cleanup removes unnecessary files, and Windows Defender Firewall controls network traffic. Therefore, System Restore provides the described rollback capability.

Question 387

Which printer component applies heat and pressure to permanently bond toner to paper?

1. Transfer belt
2. Pickup roller
3. Fuser
4. Imaging drum

Correct Answer: 3

Explanation

The fuser is a critical component in a laser printer that uses heat and pressure to permanently bond toner particles to the paper. After toner is transferred to the page, the sheet passes through the fuser so the printed material becomes durable and does not easily brush away. The imaging drum creates the electrostatic image used to attract toner, while pickup rollers move paper into the printer and transfer components help move toner from the imaging system to the paper. Therefore, the fuser performs the described function.

Question 388

Which type of memory module is commonly designed for compact laptop computers rather than full-size desktop systems?

1. SO-DIMM
2. DIMM
3. SIMM
4. RIMM

Correct Answer: 1

Explanation

SO-DIMM, or Small Outline Dual Inline Memory Module, is a compact memory module commonly used in laptops, small-form-factor computers, and other space-constrained devices. Its smaller physical dimensions allow manufacturers to fit memory into systems where standard desktop DIMMs would occupy too much space. Full-size DIMMs are commonly used in desktop motherboards, while SIMM and RIMM represent older memory-module technologies. When replacing laptop memory, technicians must verify the correct module type, generation, capacity, and speed supported by the system.

Question 389

Which wireless technology is commonly used for contactless payment when a compatible phone is held very close to a payment terminal?

1. GPS
2. Wi-Fi
3. NFC
4. Bluetooth

Correct Answer: 3

Explanation

Near Field Communication, or NFC, enables short-range wireless communication between compatible devices and is commonly used for contactless payments. The devices must generally be positioned very close to one another, which helps reduce accidental interactions and supports convenient tap-based transactions. GPS is used for location determination, Wi-Fi provides wireless networking over longer distances, and Bluetooth is commonly used for peripherals and audio devices. Therefore, NFC is the wireless technology most directly associated with contactless payment through a nearby terminal.

Question 390

Which component converts alternating current from a wall outlet into the direct-current voltages required by a desktop computer?

1. UPS
2. Power supply unit
3. Surge protector
4. Voltage regulator

Correct Answer: 2

Explanation

A power supply unit, or PSU, converts AC power from a wall outlet into the DC voltages required by computer components. It supplies regulated power to the motherboard, processor, storage devices, fans, and other hardware through various connectors. A UPS provides backup power and protection during power interruptions, while a surge protector helps protect equipment from voltage spikes. A voltage regulator manages voltage stability within appropriate circuits. Therefore, the PSU performs the primary AC-to-DC conversion required by a desktop computer.

Question 391

Which storage interface is specifically designed to allow high-speed solid-state storage to communicate through PCIe lanes?

1. NVMe
2. PATA
3. SCSI
4. IDE

Correct Answer: 1

Explanation

NVMe, or Non-Volatile Memory Express, is a storage protocol designed specifically for nonvolatile memory devices such as modern SSDs. NVMe drives commonly communicate through PCIe lanes, providing substantially higher performance and lower latency than older storage protocols such as traditional SATA-based solutions. PATA and IDE are legacy interfaces, while SCSI is an older storage technology that was widely used in servers and workstations before newer interfaces became common. Therefore, NVMe is the appropriate technology for high-speed PCIe-based solid-state storage.

Question 392

Which component is responsible for maintaining system time and certain firmware settings when a desktop computer is powered off?

1. CPU cache
2. RAM
3. CMOS battery
4. GPU

Correct Answer: 3

Explanation

The CMOS battery supplies a small amount of power that helps maintain the real-time clock and certain firmware configuration information when the computer is powered off. A failing battery may cause the system clock to reset or firmware settings to be lost or reset. RAM loses its contents when power is removed, CPU cache is volatile, and the GPU performs graphics processing. Modern systems may implement configuration storage differently from traditional CMOS designs, but the motherboard battery remains commonly associated with maintaining the real-time clock.

Question 393

Which wireless security standard provides stronger protection than WPA2 by using improved authentication and encryption mechanisms?

1. WEP
2. WPA
3. WPA2
4. WPA3

Correct Answer: 4

Explanation

WPA3 is a newer wireless security standard designed to improve upon WPA2. It introduces stronger security mechanisms, including protections intended to make password-based authentication more resistant to certain offline attacks. WPA and WEP are older standards with weaker security characteristics, while WPA2 preceded WPA3 and remains widely deployed. When configuring a compatible wireless network, administrators should select the strongest security mode supported by the environment and client devices. Therefore, WPA3 represents the newer and stronger standard described in the question.

Question 394

Which Windows command displays the current IP address, subnet mask, default gateway, and other network configuration details?

1. ipconfig
2. ping
3. tracert
4. nslookup

Correct Answer: 1

Explanation

The ipconfig command displays network configuration information for Windows network interfaces. Depending on the options used, it can show IPv4 and IPv6 addresses, subnet masks, default gateways, DNS information, and DHCP-related details. Technicians frequently use ipconfig during connectivity troubleshooting to determine whether a computer has received a valid network configuration. Ping tests reachability, tracert shows the path toward a destination, and nslookup queries DNS information. Therefore, ipconfig is the appropriate command for viewing local IP configuration.

Question 395

Which hardware component provides temporary working space for programs and data currently being used by the operating system?

1. ROM
2. RAM
3. SSD
4. Optical drive

Correct Answer: 2

Explanation

RAM, or Random Access Memory, provides temporary working space for the operating system, applications, and data currently in use. Unlike persistent storage, RAM is volatile, meaning its contents are normally lost when system power is removed. Adding sufficient RAM can improve multitasking and reduce reliance on slower virtual memory. An SSD provides persistent storage, ROM retains nonvolatile information, and an optical drive reads or writes compatible discs. Therefore, RAM is the component responsible for temporary active working space.

Question 396

Which network device connects multiple devices within the same local network and forwards frames based on MAC addresses?

1. Modem
2. Router
3. Switch
4. Firewall

Correct Answer: 3

Explanation

A network switch connects multiple devices within a local area network and forwards Ethernet frames based on destination MAC addresses. By learning which devices are associated with particular switch ports, the switch can send traffic to the appropriate destination instead of broadcasting every frame to every connected device. A router connects different IP networks, a modem provides a connection to a service provider, and a firewall enforces traffic-control policies. Therefore, the switch is the device that primarily forwards LAN frames using MAC addresses.

Question 397

Which authentication factor category is represented by a fingerprint scan?

1. Something you know
2. Something you have
3. Somewhere you are
4. Something you are

Correct Answer: 4

Explanation

A fingerprint scan represents the “something you are” authentication factor because it relies on a biometric characteristic belonging to the user. Other authentication categories include something you know, such as a password; something you have, such as a security token; and somewhere you are, which can involve geographic or network location. Biometric authentication can provide strong identity verification when implemented correctly, although organizations should still consider privacy, enrollment, and recovery procedures. Therefore, a fingerprint is classified as something you are.

Question 398

Which backup method stores changes made since the most recent full backup?

1. Differential
2. Incremental
3. Full
4. Mirror

Correct Answer: 1

Explanation

A differential backup stores files that have changed since the most recent full backup. Each subsequent differential backup continues to include all changes made since that full backup, so the amount of data can grow until another full backup is performed. Incremental backups instead contain changes made since the previous backup of any type. A full backup copies all selected data, while mirror backups generally maintain a direct copy of the source. Therefore, the method described is a differential backup.

Question 399

Which troubleshooting step should a technician perform after implementing a solution to determine whether the original problem has actually been resolved?

1. Replace unrelated hardware
2. Close the ticket immediately
3. Verify full system functionality
4. Disable security controls

Correct Answer: 3

Explanation

After implementing a troubleshooting solution, the technician should verify full system functionality and confirm that the original symptoms have been resolved. This validation step is important because a repair that appears successful may not completely address the underlying issue or could introduce another problem. The technician should test the affected functionality under appropriate conditions and compare the results with the original symptoms. Closing the ticket before verification, replacing unrelated hardware, or disabling security controls does not provide reliable confirmation of a successful repair.

Question 400

Which type of connector is commonly used for fiber-optic networking and uses a bayonet-style locking mechanism?

1. LC
2. SC
3. ST
4. RJ45

Correct Answer: 3

Explanation

ST is a fiber-optic connector that uses a bayonet-style locking mechanism. It was commonly used in older fiber-network installations and is recognized by its round design and twist-to-lock connection method. SC connectors use a push-pull mechanism, LC connectors are smaller and use a latch-style design, and RJ45 connectors are associated with twisted-pair Ethernet rather than fiber optics. Although newer installations often favor LC connectors because of their compact size, ST remains an important connector type that technicians may encounter in existing fiber infrastructure.