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

 

Question 381.

Which connector is commonly used for connecting an internal floppy disk drive?

1. SATA
2. 34-pin header
3. M.2 slot
4. PCIe x1

Correct Answer: 2

Explanation:

Traditional internal floppy disk drives commonly connected to the motherboard through a 34-pin floppy drive interface. The associated ribbon cable was narrower than the 40-pin cables historically used for IDE devices. SATA is used with modern storage devices, M.2 provides compact storage or expansion connections, and PCIe x1 is an expansion interface for compatible cards. Floppy interfaces are now considered legacy technology and are rarely included on modern motherboards. Understanding older connectors remains useful for A+ technicians who may encounter legacy systems during upgrades, repairs, or data-recovery tasks.

Question 382.

Which connector is commonly used for a computer’s internal CPU power connection?

1. Molex
2. SATA power
3. EPS12V
4. Berg connector

Correct Answer: 3

Explanation:

The EPS12V connector supplies dedicated power to the CPU through the motherboard. Modern desktop systems commonly use a 4-pin, 8-pin, or compatible EPS-style CPU power connector depending on the motherboard and processor requirements. SATA power connectors are intended for SATA storage devices, while Molex connectors were historically used for various internal peripherals. The Berg connector was associated with older floppy drives. A technician should ensure that the CPU power connector is correctly attached because the motherboard’s main 24-pin connection alone may not provide the dedicated processor power required for normal operation.

Question 383.

Which technology allows a device to communicate over a very short wireless distance using magnetic fields?

1. NFC
2. Wi-Fi 6
3. Bluetooth
4. LTE

Correct Answer: 1

Explanation:

Near Field Communication, or NFC, enables short-range wireless communication using electromagnetic induction between compatible devices. It is commonly used for contactless payments, access badges, device pairing, and other proximity-based interactions. NFC generally operates over a very short distance compared with technologies such as Wi-Fi or Bluetooth. Wi-Fi 6 is designed for wireless networking, Bluetooth supports short-range peripheral and device communication, and LTE provides cellular connectivity over much larger areas. NFC’s short operating range can be useful when intentional close physical proximity is part of the interaction.

Question 384.

Which Windows feature allows users to restore system files to an earlier state?

1. Disk Cleanup
2. Task Manager
3. System Restore
4. Device Manager

Correct Answer: 3

Explanation:

System Restore allows Windows to return certain system files, drivers, registry settings, and installed-program configurations to an earlier restore point. It can be useful when a recent software or driver change causes system instability. System Restore does not function as a complete backup of personal documents. Disk Cleanup removes unnecessary files, Task Manager monitors processes and system activity, and Device Manager manages hardware devices and drivers. Restore points may be created automatically or manually depending on system configuration. Technicians can use this feature as one troubleshooting step when recent system changes are suspected.

Question 385.

Which printer component transfers toner from the drum onto paper?

1. Fuser
2. Pickup roller
3. Transfer roller
4. Separation pad

Correct Answer: 3

Explanation:

The transfer roller in a laser printer helps move toner from the imaging drum onto the paper. After transfer, the fuser applies heat and pressure to permanently bond the toner to the paper surface. The pickup roller feeds paper from the tray, while the separation pad helps prevent multiple sheets from being pulled into the printer at once. Understanding the printing sequence helps technicians identify defects such as incomplete toner transfer, paper-feed problems, or improperly fused output. A faulty transfer assembly can produce faint, incomplete, or uneven printed images.

Question 386.

Which port is commonly used by an SSH server?

1. 23
2. 53
3. 80
4. 22

Correct Answer: 4

Explanation:

TCP port 22 is the standard port associated with Secure Shell, or SSH. SSH provides encrypted remote command-line access and is widely used for securely administering network devices, servers, and other systems. Port 23 is traditionally associated with Telnet, port 53 is used by DNS, and port 80 is commonly associated with HTTP. Administrators can configure SSH to use another port, but TCP 22 is the conventional default. Knowing common service ports helps A+ technicians identify network services during troubleshooting and understand firewall or connectivity requirements.

Question 387.

Which component detects rotational movement in a mobile device?

1. Gyroscope
2. Microphone
3. Proximity sensor
4. Barometer

Correct Answer: 1

Explanation:

A gyroscope detects rotational movement and angular velocity. Mobile devices can use gyroscopic information for screen orientation, gaming, navigation, stabilization, and augmented-reality applications. A microphone detects sound, a proximity sensor detects nearby objects, and a barometer measures atmospheric pressure. Smartphones often combine several sensors to determine movement and orientation more accurately. For example, gyroscope data can complement accelerometer measurements when an application needs to distinguish rotational movement from linear acceleration. These sensors are typically integrated into the device’s compact sensor package.

Question 388.

Which Windows command displays the current IP configuration?

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

Correct Answer: 3

Explanation:

The Windows ipconfig command displays network configuration information such as IPv4 and IPv6 addresses, subnet masks, and default gateways. Additional switches can provide more detailed information or release and renew DHCP assignments. The ping command tests connectivity, tracert displays the path toward a destination, and netstat displays network connections and related statistics. Technicians frequently use ipconfig as an initial troubleshooting tool when a Windows computer has connectivity problems. It can quickly reveal whether the system has received an appropriate address and gateway configuration.

Question 389.

Which connector is designed for high-speed external peripheral connections and can carry data, video, and power?

1. USB-C
2. RJ45
3. PS/2
4. RCA

Correct Answer: 1

Explanation:

USB-C is a compact reversible connector capable of supporting high-speed data transfer and, depending on the implementation, display output and power delivery. The physical connector itself does not guarantee every USB feature because capabilities depend on the device, port, cable, and supported standards. RJ45-style connectors are commonly associated with Ethernet, PS/2 is a legacy keyboard and mouse interface, and RCA connectors are used for various analog or digital audio/video applications. USB-C has become common on laptops, smartphones, docking stations, displays, and other modern computing equipment.

Question 390.

Which network device forwards packets between different IP networks?

1. Hub
2. Router
3. Repeater
4. Patch panel

Correct Answer: 2

Explanation:

A router forwards packets between different networks based on IP addressing and routing information. It can connect a local network to another network, such as an organization’s upstream network or the internet. A hub simply repeats network signals to connected ports and does not perform IP routing. A repeater regenerates or extends signals, while a patch panel provides physical cable termination and organization. Routers may also provide additional functions such as DHCP, NAT, firewalling, and wireless access, depending on the particular device and configuration.

Question 391.

Which laptop component provides pointing control without an external mouse?

1. Touchpad
2. Digitizer
3. Webcam
4. Fingerprint reader

Correct Answer: 1

Explanation:

A touchpad provides a built-in pointing interface on many laptops. Users move a finger across its surface to control the pointer and can perform gestures such as scrolling or multi-finger navigation when supported by the operating system and hardware. A digitizer is associated with detecting stylus or touch input on compatible displays, while a webcam captures video and a fingerprint reader provides biometric input. Touchpads are especially useful on portable computers because they eliminate the need to carry a separate pointing device while maintaining precise cursor control.

Question 392.

Which protocol securely retrieves email messages while keeping them synchronized on the server?

1. FTP
2. SMTP
3. IMAP
4. TFTP

Correct Answer: 3

Explanation:

IMAP, or Internet Message Access Protocol, allows email clients to access and manage messages stored on a mail server. Because messages generally remain on the server, users can synchronize folders, read status, and other mailbox changes across multiple devices. SMTP is primarily used for sending email, while FTP is designed for file transfers and TFTP provides a simpler file-transfer mechanism commonly used in specialized environments. Secure email access can use encrypted versions of IMAP, such as IMAPS, depending on the mail service and configuration. This makes IMAP suitable for users accessing mail from several devices.

Question 393.

Which component converts digital computer signals into analog audio for speakers or headphones?

1. DAC
2. NIC
3. Modem
4. TPM

Correct Answer: 1

Explanation:

A digital-to-analog converter, or DAC, converts digital audio information into an analog electrical signal that can be sent to compatible headphones, speakers, or amplifiers. Computers may contain integrated DAC circuitry on the motherboard or use a dedicated external audio interface. A NIC provides network connectivity, a modem handles communication with certain communication services, and a TPM provides hardware-based security functions. Audio quality can depend on several factors, including the DAC implementation, amplification circuitry, source material, and connected audio equipment. External DACs are also available for specialized audio applications.

Question 394.

Which wireless standard operates primarily in the 5 GHz band and preceded 802.11ac?

1. 802.11b
2. 802.11g
3. 802.11n
4. 802.11a

Correct Answer: 4

Explanation:

IEEE 802.11a operates in the 5 GHz wireless band and predates newer standards such as 802.11n and 802.11ac. It introduced OFDM-based wireless networking and provided higher theoretical throughput than earlier 2.4 GHz 802.11b implementations. 802.11g primarily operates in the 2.4 GHz band, while 802.11n can operate in both 2.4 GHz and 5 GHz depending on implementation. Modern wireless networks generally use newer standards, but understanding older standards remains useful when troubleshooting legacy equipment and compatibility issues.

Question 395.

Which device provides a physical connection point for terminating network cables in a rack?

1. Patch panel
2. Router
3. Wireless controller
4. Modem

Correct Answer: 1

Explanation:

A patch panel provides an organized physical termination point for network cables, especially in structured cabling installations. Permanent horizontal cables can terminate at the rear or through appropriate connectors, while short patch cables connect the panel to switches and other networking equipment. This arrangement makes cable management, labeling, troubleshooting, and future changes easier. A router performs packet forwarding, a wireless controller manages wireless infrastructure in supported environments, and a modem provides access to certain service-provider networks. Patch panels do not actively process or route network traffic.

Question 396.

Which command tests whether a remote host responds to network requests?

1. nslookup
2. ping
3. hostname
4. arp

Correct Answer: 2

Explanation:

The ping command sends network diagnostic messages to a specified destination and reports whether responses are received. It can help determine basic IP connectivity and measure response times. nslookup is primarily used to query DNS information, hostname displays or identifies the system’s host name, and arp displays or manages address-resolution information. A successful ping does not prove that every application service is functioning, because firewalls or service configurations may block or ignore ICMP traffic. Nevertheless, ping remains a fundamental troubleshooting command for basic network reachability.

Question 397.

Which printer type uses heated plastic filament to create physical objects layer by layer?

1. Laser
2. Inkjet
3. Thermal
4. 3D printer

Correct Answer: 4

Explanation:

A 3D printer using fused filament fabrication or a related process can heat thermoplastic filament and deposit it layer by layer to construct a physical object. The printer follows digital model instructions to control movement and material deposition. Laser printers use toner, inkjet printers place liquid ink onto media, and thermal printers use heat-sensitive media or thermal transfer methods. Different 3D printing technologies use different materials and mechanisms, but filament-based systems commonly rely on heated extrusion. These printers are used for prototypes, models, replacement parts, educational projects, and manufacturing applications.

Question 398.

Which Windows utility manages partitions and formats storage volumes?

1. Disk Management
2. Event Viewer
3. Services
4. Registry Editor

Correct Answer: 1

Explanation:

Windows Disk Management provides a graphical interface for viewing and managing storage devices and volumes. Technicians can use it to create, delete, format, resize supported partitions, assign drive letters, and initialize certain disks. Event Viewer is used to inspect system and application logs, Services manages background services, and Registry Editor provides access to Windows configuration data stored in the registry. Disk Management is particularly useful when a newly installed drive does not appear in File Explorer because the disk may require initialization, partitioning, or volume assignment before normal use.

Question 399.

Which technology allows a computer to connect to a cellular data network?

1. WWAN
2. PAN
3. LAN
4. SAN

Correct Answer: 1

Explanation:

WWAN, or Wireless Wide Area Network, provides wireless connectivity across large geographic areas using cellular infrastructure. A laptop with an integrated cellular modem or compatible adapter can use a carrier network for internet access without relying on local Wi-Fi. PAN describes a personal-area network, LAN covers a local geographic area, and SAN refers to specialized storage networking. WWAN connectivity typically requires compatible cellular hardware and service from a network provider. Depending on the hardware and service, technologies such as LTE or 5G may provide the underlying cellular connection.

Question 400.

Which component stores firmware settings when the computer is powered off?

1. RAM
2. CPU cache
3. CMOS memory
4. VRAM

Correct Answer: 3

Explanation:

CMOS memory traditionally stores certain firmware configuration settings while the computer is powered off, with the associated real-time clock and configuration data supported by a small battery on traditional systems. Modern firmware implementations use more advanced nonvolatile storage architectures, but the term CMOS settings remains common in PC troubleshooting. RAM and CPU cache are volatile memory, while VRAM is dedicated primarily to graphics processing. If the system repeatedly loses firmware settings or the clock resets after shutdown, a technician may investigate the motherboard’s battery and related configuration hardware.