View Full CompTIA A+ 220-1101 Exam Dumps and Practice Test Dumps

 

Question 141.

Which motherboard slot commonly supports a discrete graphics card?

1. PCIe x1
2. PCIe x16
3. M.2 socket
4. DIMM slot

Correct Answer: 2

Explanation:

PCIe x16 slots are commonly used for discrete graphics cards because they provide a large number of PCI Express lanes and substantial bandwidth. Graphics cards require higher bandwidth than many smaller expansion devices, making the x16 interface appropriate for this purpose. PCIe x1 slots are generally used for lower-bandwidth expansion devices, M.2 sockets commonly support storage or wireless modules, and DIMM slots hold system memory. Technicians should identify PCIe slot types when installing expansion cards and verify physical compatibility, available lanes, and motherboard support before installation.

Question 142.

Which memory module type is commonly used in desktop computers?

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

Correct Answer: 3

Explanation:

DIMM, or Dual Inline Memory Module, is commonly used for desktop system memory. Desktop motherboards typically provide DIMM slots that accommodate compatible DDR memory modules. SO-DIMMs are smaller modules commonly found in laptops and compact systems. SIMMs are an older memory technology, while MicroDIMMs are smaller modules associated with certain specialized devices. Technicians should verify memory generation, capacity, speed, and motherboard compatibility before installation. DDR4 and DDR5 modules, for example, are not interchangeable because their physical and electrical characteristics differ.

Question 143.

Which port is commonly used for connecting an analog telephone line?

1. RJ11
2. RJ45
3. USB-A
4. F-type

Correct Answer: 1

Explanation:

RJ11 connectors are commonly associated with traditional telephone connections. They are smaller than RJ45 connectors and are designed for telephone wiring rather than standard Ethernet networking. RJ45 is commonly used for Ethernet connections, USB-A supports many peripheral devices, and F-type connectors are frequently used with coaxial cable for television or broadband services. Technicians should distinguish RJ11 from RJ45 because the connectors can appear similar at a glance. Correct identification is important when installing telephone equipment, DSL connections, or other systems that use traditional telephone cabling.

Question 144.

Which component provides temporary storage for actively used CPU data?

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

Correct Answer: 3

Explanation:

Random Access Memory, or RAM, provides temporary working storage for data and instructions that the processor is actively using. RAM is volatile, meaning its contents are normally lost when system power is removed. ROM provides nonvolatile storage for firmware-related information, an SSD provides persistent data storage, and optical media stores information on removable discs. Increasing available RAM can help a system handle more active applications and data without relying as heavily on slower storage-based virtual memory. Technicians should consider capacity, memory generation, speed, and motherboard compatibility when upgrading RAM.

Question 145.

Which connector is commonly used for cable television and broadband coaxial connections?

1. RJ11
2. F-type
3. USB-C
4. DE-9

Correct Answer: 2

Explanation:

The F-type connector is commonly used with coaxial cable for television signals, satellite systems, and certain cable broadband services. It typically uses a threaded connection that secures the coaxial cable to the device. RJ11 is associated with telephone wiring, USB-C supports modern digital peripherals, and DE-9 is a legacy connector used for certain serial and other interfaces. Properly securing an F-type connection helps maintain signal quality. Technicians working with cable Internet or television systems should recognize the connector and understand that coaxial cable differs from twisted-pair Ethernet cabling.

Question 146.

Which feature allows a computer to resume operation quickly from low power mode?

1. Sleep mode
2. Secure Boot
3. Disk defragmentation
4. BIOS flashing

Correct Answer: 1

Explanation:

Sleep mode places a computer into a low-power state while preserving the current session so the system can resume quickly. Memory remains available to maintain the active operating environment, while many other components enter reduced-power states. Secure Boot protects the boot process, disk defragmentation reorganizes data on compatible storage, and BIOS flashing updates firmware. Sleep is useful when a user temporarily stops working but wants to return quickly without performing a complete shutdown and startup. Technicians should understand power-management states when troubleshooting systems that fail to resume correctly.

Question 147.

Which technology identifies nearby devices using radio-frequency tags?

1. SATA
2. RFID
3. HDMI
4. PCIe

Correct Answer: 2

Explanation:

Radio Frequency Identification, or RFID, uses radio waves to identify and track tagged objects. An RFID system typically includes tags and readers that communicate wirelessly when a compatible tag enters the reader’s operating range. RFID is used in inventory systems, access control, asset tracking, identification cards, and other applications. SATA is a storage interface, HDMI carries digital audio and video, and PCIe connects expansion devices to a computer’s motherboard. Technicians should recognize RFID as a wireless identification technology rather than a general-purpose networking or peripheral interface.

Question 148.

Which printer component applies toner to a charged imaging surface?

1. Fuser
2. Transfer roller
3. Drum
4. Pickup roller

Correct Answer: 3

Explanation:

The imaging drum in a laser printer holds an electrostatic image that attracts toner particles during the printing process. The toner is subsequently transferred to paper and permanently bonded by the fuser. The transfer roller helps move toner from the imaging system onto the paper, while the pickup roller feeds paper from the tray. Understanding these components helps technicians diagnose print defects such as repeated marks, streaks, or faded areas. Proper maintenance and replacement procedures are important because imaging components can accumulate toner and wear over time.

Question 149.

Which network device connects separate IP networks and forwards packets between them?

1. Router
2. Patch panel
3. Hub
4. Access point

Correct Answer: 1

Explanation:

A router connects different networks and forwards packets between them based on network-layer addressing information. Routers commonly serve as gateways between local networks and external networks such as the Internet. A patch panel provides physical cable termination and organization, a hub repeats network signals to connected ports, and an access point provides wireless network connectivity. Understanding routing is essential for troubleshooting connectivity between different subnets. Technicians may also encounter routers performing additional functions such as DHCP services, NAT, firewall filtering, and wireless networking.

Question 150.

Which connector carries both digital video and digital audio over one cable?

1. DVI-I
2. VGA
3. HDMI
4. PS/2

Correct Answer: 3

Explanation:

HDMI is designed to carry digital video and digital audio through a single cable. It is widely used with computers, televisions, monitors, projectors, and home theater equipment. VGA carries analog video only, while many DVI implementations primarily carry video and do not provide the same integrated audio capability. PS/2 is a legacy interface for keyboards and mice. HDMI versions can differ in supported resolutions, refresh rates, audio capabilities, and other features, so technicians should consider both source and display compatibility when selecting cables and troubleshooting display problems.

Question 151.

Which component maintains system time when the computer is powered off?

1. CMOS battery
2. CPU cooler
3. System speaker
4. Network adapter

Correct Answer: 1

Explanation:

The CMOS battery provides backup power that allows a computer’s real-time clock and certain firmware settings to remain maintained when the system is turned off. A depleted battery can cause incorrect system time or loss of some firmware configuration information. The CPU cooler removes processor heat, the system speaker provides diagnostic audio signals on compatible systems, and a network adapter provides network connectivity. Technicians should consider the CMOS battery when a computer repeatedly loses its clock settings after being disconnected from AC power for an extended period.

Question 152.

Which wireless technology is commonly used for short-range peripheral connections?

1. Bluetooth
2. DSL
3. DOCSIS
4. Ethernet

Correct Answer: 1

Explanation:

Bluetooth is commonly used to connect short-range wireless peripherals such as keyboards, mice, headsets, speakers, and other devices. It uses low-power radio communication and is designed for personal-area connectivity rather than long-distance networking. DSL provides broadband service over telephone lines, DOCSIS supports cable broadband communication, and Ethernet uses wired network connections. Technicians troubleshooting Bluetooth devices should verify pairing, supported profiles, signal range, device visibility, and driver or operating-system support. Bluetooth is especially useful when a physical cable connection would be inconvenient.

Question 153.

Which storage medium is commonly used for long-term archival backups?

1. SSD
2. Magnetic tape
3. RAM
4. Cache memory

Correct Answer: 2

Explanation:

Magnetic tape is widely used for long-term archival and backup storage because it can provide high capacity at relatively low cost per stored unit of data. Tape cartridges can also be stored offline, helping protect backup data from certain network-based threats. SSDs provide fast access but are generally used for active storage rather than large-scale archival libraries. RAM and cache memory are volatile working-storage technologies and are not suitable for long-term backups. Technicians managing backup systems should understand tape rotation, storage conditions, retention policies, and restoration procedures.

Question 154.

Which interface commonly connects an internal hard drive using a four-pin power connector?

1. SATA power
2. Molex peripheral power
3. USB-C
4. Mini-DIN

Correct Answer: 2

Explanation:

The four-pin Molex peripheral power connector was widely used to supply power to older internal hard drives, optical drives, fans, and other computer components. Modern SATA drives generally use dedicated SATA power connectors instead. USB-C is an external connectivity interface, while Mini-DIN connectors are associated with several peripheral and video applications. Technicians may still encounter Molex connectors when servicing older systems or certain specialized hardware. Recognizing legacy power connectors helps prevent incorrect connections and assists technicians when upgrading or maintaining older computer equipment.

Question 155.

Which display setting determines the number of pixels shown on screen?

1. Contrast
2. Brightness
3. Resolution
4. Refresh rate

Correct Answer: 3

Explanation:

Display resolution specifies the number of horizontal and vertical pixels used to form an image. For example, a resolution of 1920 × 1080 represents 1920 horizontal pixels and 1080 vertical pixels. Higher resolutions can provide more image detail when supported by the display and graphics hardware. Brightness controls light output, contrast adjusts the difference between dark and light areas, and refresh rate specifies how frequently the image is updated. Technicians should distinguish these settings when diagnosing blurry images, incorrect scaling, flicker, or unsupported display configurations.

Question 156.

Which device can provide wired network connectivity to a laptop through USB?

1. USB Ethernet adapter
2. Bluetooth dongle
3. Audio interface
4. HDMI splitter

Correct Answer: 1

Explanation:

A USB Ethernet adapter provides a wired network connection to laptops and other systems that lack a built-in Ethernet port. The adapter converts USB connectivity into a standard Ethernet interface, allowing the computer to connect to a wired network using an Ethernet cable. A Bluetooth dongle provides Bluetooth connectivity, an audio interface handles audio functions, and an HDMI splitter distributes video signals. USB Ethernet adapters are especially useful with thin laptops and mobile systems that omit traditional network ports. Technicians should verify operating-system compatibility and supported Ethernet speeds.

Question 157.

Which component helps prevent unauthorized firmware from executing during startup?

1. RAID controller
2. Secure Boot
3. Print spooler
4. Disk cache

Correct Answer: 2

Explanation:

Secure Boot is a firmware security feature that helps prevent unauthorized or untrusted boot software from executing during system startup. It works by validating boot components against trusted cryptographic signatures before allowing them to run. A RAID controller manages storage arrays, the print spooler manages print jobs, and disk cache temporarily stores frequently accessed storage data. Secure Boot is commonly associated with modern UEFI-based systems. Technicians should understand its role when troubleshooting boot failures, installing operating systems, or configuring systems that require trusted boot components.

Question 158.

Which connector is commonly used for attaching a legacy keyboard?

1. USB-B
2. PS/2
3. DisplayPort
4. RJ45

Correct Answer: 2

Explanation:

The PS/2 connector is a legacy interface commonly used for keyboards and mice. It uses a small round connector and predates widespread USB peripheral adoption. USB-B is commonly associated with certain printers and other peripherals, DisplayPort carries digital audio and video, and RJ45 is widely used for Ethernet networking. Although modern computers generally use USB keyboards, technicians may still encounter PS/2 interfaces on older desktops or specialized equipment. Correctly identifying legacy connectors is useful when maintaining older systems or supporting hardware with limited modern connectivity.

Question 159.

Which technology enables a computer to boot from a network server?

1. PXE
2. NFC
3. RAID
4. TRIM

Correct Answer: 1

Explanation:

Preboot Execution Environment, or PXE, allows a compatible computer to start its boot process using network resources rather than relying solely on local storage. PXE is commonly used for operating-system deployment, imaging, and centralized provisioning in managed environments. The system typically obtains network configuration and boot information before downloading the required boot components. NFC provides short-range communication, RAID manages storage configurations, and TRIM helps SSDs manage unused blocks. Technicians should understand PXE when deploying operating systems across many computers or troubleshooting network-based installation processes.

Question 160.

Which component provides dedicated graphics memory for a discrete GPU?

1. System RAM
2. VRAM
3. CMOS memory
4. ROM

Correct Answer: 2

Explanation:

VRAM, or video memory, is dedicated memory used by a graphics processor to store data such as textures, frame buffers, and other graphics information. Discrete graphics cards commonly include their own VRAM, allowing the GPU to access graphics data efficiently without relying entirely on the computer’s main system memory. System RAM serves general-purpose applications, CMOS memory supports firmware-related configuration and clock functions, and ROM provides nonvolatile storage for firmware or other fixed data. More demanding graphics workloads can require greater VRAM capacity depending on resolution, applications, and graphical detail.