{"id":22295,"date":"2026-09-25T12:11:33","date_gmt":"2026-09-25T12:11:33","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=22295"},"modified":"2026-09-25T12:11:33","modified_gmt":"2026-09-25T12:11:33","slug":"comptia-a-220-1101-practice-test-questions-and-exam-dumps-part15-q281-q300","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/comptia-a-220-1101-practice-test-questions-and-exam-dumps-part15-q281-q300\/","title":{"rendered":"CompTIA A+ 220-1101 Practice Test Questions and Exam Dumps Part15 Q281-Q300"},"content":{"rendered":"

View Full <\/b>CompTIA A+ 220-1101 Exam Dumps<\/b><\/a> and Practice Test Dumps<\/b><\/h2>\n

 <\/p>\n

Question 281.<\/b><\/h3>\n

Which interface commonly connects a computer to a docking station?<\/b><\/p>\n

    \n
  1. VGA<\/span><\/li>\n
  2. USB-C<\/span><\/li>\n
  3. PS\/2<\/span><\/li>\n
  4. RJ11<\/span><\/li>\n<\/ol>\n

    Correct Answer: 2<\/b><\/p>\n

    Explanation:<\/b><\/p>\n

    USB-C is commonly used to connect modern laptops to docking stations. Depending on the laptop and dock, a USB-C connection can carry data, video, audio, and power through a single cable. VGA is primarily a legacy analog video interface, PS\/2 was traditionally used for keyboards and mice, and RJ11 is associated with telephone connections. Technicians should verify whether the laptop’s USB-C port supports the required capabilities, such as DisplayPort Alt Mode or USB Power Delivery, because not every USB-C port provides identical functionality.<\/span><\/p>\n

    Question 282.<\/b><\/h3>\n

    Which technology supplies network power through Ethernet cabling?<\/b><\/p>\n

      \n
    1. NFC<\/span><\/li>\n
    2. PoE<\/span><\/li>\n
    3. LTE<\/span><\/li>\n
    4. GPS<\/span><\/li>\n<\/ol>\n

      Correct Answer: 2<\/b><\/p>\n

      Explanation:<\/b><\/p>\n

      Power over Ethernet, or PoE, allows compatible network cabling to carry both data and electrical power. It can simplify installations for devices such as wireless access points, VoIP phones, and certain network cameras because a separate electrical connection may not be required at the endpoint. NFC provides short-range communication, LTE provides cellular connectivity, and GPS provides positioning information. Technicians should verify PoE standards, available switch power budgets, cable compatibility, and endpoint requirements before deployment. Proper planning prevents insufficient power from affecting connected network devices.<\/span><\/p>\n

      Question 283.<\/b><\/h3>\n

      Which device converts digital signals into analog audio?<\/b><\/p>\n

        \n
      1. DAC<\/span><\/li>\n
      2. NIC<\/span><\/li>\n
      3. Modem<\/span><\/li>\n
      4. Router<\/span><\/li>\n<\/ol>\n

        Correct Answer: 1<\/b><\/p>\n

        Explanation:<\/b><\/p>\n

        A digital-to-analog converter, or DAC, converts digitally stored or transmitted audio information into an analog electrical signal that can be sent to compatible speakers or headphones. This conversion is necessary when digital audio must be reproduced through analog audio equipment. A NIC provides network connectivity, a modem converts signals for communication over specific transmission systems, and a router forwards network traffic between networks. Many computers and mobile devices include integrated DAC functionality within their audio hardware. Technicians troubleshooting analog sound should consider the DAC, audio drivers, connectors, and output configuration.<\/span><\/p>\n

        Question 284.<\/b><\/h3>\n

        Which wireless security protocol is designed to replace older WPA2 protection?<\/b><\/p>\n

          \n
        1. WEP<\/span><\/li>\n
        2. WPA<\/span><\/li>\n
        3. WPA3<\/span><\/li>\n
        4. TKIP<\/span><\/li>\n<\/ol>\n

          Correct Answer: 3<\/b><\/p>\n

          Explanation:<\/b><\/p>\n

          WPA3 is a newer Wi-Fi security protocol designed to provide stronger protections than older wireless security methods. It improves authentication and security features while addressing weaknesses associated with previous standards. WEP is an obsolete wireless security protocol, WPA is an earlier generation, and TKIP is an older encryption mechanism associated with WPA-era security. Technicians configuring modern wireless networks should select security settings supported by both the access point and client devices. Compatibility should be checked carefully when older wireless hardware must connect to a WPA3-enabled network.<\/span><\/p>\n

          Question 285.<\/b><\/h3>\n

          Which component regulates voltage supplied to a processor?<\/b><\/p>\n

            \n
          1. VRM<\/span><\/li>\n
          2. GPU<\/span><\/li>\n
          3. NIC<\/span><\/li>\n
          4. TPM<\/span><\/li>\n<\/ol>\n

            Correct Answer: 1<\/b><\/p>\n

            Explanation:<\/b><\/p>\n

            A voltage regulator module, or VRM, regulates and supplies the appropriate voltage required by a processor. It converts and conditions power from the motherboard’s power-delivery system so the CPU receives stable electrical power. A GPU handles graphics processing, a NIC provides network connectivity, and a TPM provides hardware-based security functions. VRM quality and cooling can be important in systems with demanding processors because the module may handle substantial electrical loads. Technicians diagnosing processor instability should consider power delivery, motherboard specifications, cooling, and processor compatibility.<\/span><\/p>\n

            Question 286.<\/b><\/h3>\n

            Which storage interface uses a 7-pin data connector?<\/b><\/p>\n

              \n
            1. M.2<\/span><\/li>\n
            2. SATA<\/span><\/li>\n
            3. PCIe<\/span><\/li>\n
            4. SCSI<\/span><\/li>\n<\/ol>\n

              Correct Answer: 2<\/b><\/p>\n

              Explanation:<\/b><\/p>\n

              SATA data connections commonly use a seven-pin connector to connect internal storage devices such as hard disk drives and SATA solid-state drives to a motherboard or controller. The SATA power connector is physically different and provides electrical power to the drive. M.2 describes a compact form factor that can support different storage interfaces, PCIe is an expansion-bus technology, and SCSI is an older family of storage and peripheral interfaces. Technicians should distinguish SATA data and power connectors because both are normally required for a conventional internal SATA drive.<\/span><\/p>\n

              Question 287.<\/b><\/h3>\n

              Which laptop component captures video for online meetings?<\/b><\/p>\n

                \n
              1. Webcam<\/span><\/li>\n
              2. Touchpad<\/span><\/li>\n
              3. Digitizer<\/span><\/li>\n
              4. Speaker<\/span><\/li>\n<\/ol>\n

                Correct Answer: 1<\/b><\/p>\n

                Explanation:<\/b><\/p>\n

                A webcam captures video and is commonly integrated into the display bezel of modern laptops. Applications can use the webcam for video conferencing, streaming, recording, and other image-capture tasks. A touchpad provides pointer control, a digitizer detects touch input on compatible displays, and a speaker produces audio output. When a webcam does not function, technicians should check privacy settings, application permissions, device drivers, physical shutters, and whether another application is already using the camera. Hardware damage or a disabled camera device can also prevent normal operation.<\/span><\/p>\n

                Question 288.<\/b><\/h3>\n

                Which memory type is commonly installed in laptops?<\/b><\/p>\n

                  \n
                1. DIMM<\/span><\/li>\n
                2. RIMM<\/span><\/li>\n
                3. SO-DIMM<\/span><\/li>\n
                4. SIMM<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 3<\/b><\/p>\n

                  Explanation:<\/b><\/p>\n

                  SO-DIMM modules are designed for compact computing systems such as laptops and small-form-factor computers. They are physically smaller than standard desktop DIMMs, allowing manufacturers to conserve space inside portable devices. DIMMs are commonly associated with desktop systems, while SIMM and RIMM represent older memory-module technologies. Although SO-DIMM describes the physical module format, technicians must still verify the supported memory generation, capacity, speed, voltage, and system limits before installation. Installing a physically compatible but electrically unsupported module may prevent the system from booting correctly.<\/span><\/p>\n

                  Question 289.<\/b><\/h3>\n

                  Which technology provides location information using satellites?<\/b><\/p>\n

                    \n
                  1. GPS<\/span><\/li>\n
                  2. NFC<\/span><\/li>\n
                  3. Bluetooth<\/span><\/li>\n
                  4. Infrared<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 1<\/b><\/p>\n

                    Explanation:<\/b><\/p>\n

                    Global Positioning System, or GPS, uses signals from satellites to help determine a device’s geographic position. Smartphones, navigation systems, vehicles, and other devices can use GPS for mapping, navigation, location-aware services, and tracking applications. NFC is designed for extremely short-range communication, Bluetooth connects nearby devices, and infrared uses light for communication. GPS receivers may require an unobstructed view or suitable signal conditions to obtain accurate positioning. Technicians troubleshooting location services should check permissions, receiver availability, environmental conditions, and application settings.<\/span><\/p>\n

                    Question 290.<\/b><\/h3>\n

                    Which technology provides storage access over a high-speed PCIe connection?<\/b><\/p>\n

                      \n
                    1. SATA<\/span><\/li>\n
                    2. NVMe<\/span><\/li>\n
                    3. PATA<\/span><\/li>\n
                    4. IDE<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 2<\/b><\/p>\n

                      Explanation:<\/b><\/p>\n

                      NVMe is a storage protocol designed for nonvolatile memory and commonly operates over PCI Express. It was developed to take advantage of the low latency and high parallelism available from modern PCIe-based storage systems. SATA and PATA are storage interfaces associated with older storage architectures, while IDE is commonly used as a historical term for parallel ATA technology. Technicians should understand that NVMe identifies a protocol rather than a physical connector. An NVMe drive may use an M.2 form factor, but the exact motherboard slot capabilities must still be verified.<\/span><\/p>\n

                      Question 291.<\/b><\/h3>\n

                      Which device provides temporary electrical power during an outage?<\/b><\/p>\n

                        \n
                      1. UPS<\/span><\/li>\n
                      2. KVM<\/span><\/li>\n
                      3. Switch<\/span><\/li>\n
                      4. Repeater<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 1<\/b><\/p>\n

                        Explanation:<\/b><\/p>\n

                        An uninterruptible power supply, or UPS, provides temporary battery-backed electrical power when utility power fails or falls outside acceptable conditions. This allows connected systems to remain operational for a limited time and can provide an opportunity for controlled shutdown. A KVM switch manages multiple computers from a shared console, a network switch connects network devices, and a repeater regenerates or extends certain signals. UPS selection should account for connected wattage, expected runtime, battery condition, and equipment sensitivity. Technicians should also test battery operation periodically.<\/span><\/p>\n

                        Question 292.<\/b><\/h3>\n

                        Which connector is commonly used for coaxial cable television service?<\/b><\/p>\n

                          \n
                        1. RJ45<\/span><\/li>\n
                        2. F-type<\/span><\/li>\n
                        3. USB-A<\/span><\/li>\n
                        4. DE-15<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 2<\/b><\/p>\n

                          Explanation:<\/b><\/p>\n

                          F-type connectors are commonly used with coaxial cabling for television, cable Internet, and related radio-frequency connections. They typically use a threaded connection that helps secure the cable to compatible equipment. RJ45 connectors are commonly associated with Ethernet, USB-A is a general-purpose peripheral connector, and DE-15 is commonly associated with VGA video connections. Technicians installing coaxial services should inspect the connector for proper termination, secure threading, damaged components, and signal-quality problems. Poorly installed coaxial connectors can introduce attenuation or interference into the connection.<\/span><\/p>\n

                          Question 293.<\/b><\/h3>\n

                          Which feature reduces CPU speed when thermal limits are reached?<\/b><\/p>\n

                            \n
                          1. Thermal throttling<\/span><\/li>\n
                          2. RAID mirroring<\/span><\/li>\n
                          3. Packet filtering<\/span><\/li>\n
                          4. Screen dimming<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 1<\/b><\/p>\n

                            Explanation:<\/b><\/p>\n

                            Thermal throttling reduces processor performance when temperatures approach defined thermal limits. By lowering operating frequency, voltage, or workload, the system can reduce heat generation and help prevent overheating-related damage. RAID mirroring protects storage through redundancy, packet filtering controls network traffic, and screen dimming reduces display power consumption. Technicians investigating unexpected performance reductions should examine processor temperature, cooling-fan operation, heat-sink installation, thermal compound, airflow, and system firmware settings. Persistent throttling may indicate inadequate cooling or excessive environmental temperature.<\/span><\/p>\n

                            Question 294.<\/b><\/h3>\n

                            Which port is commonly associated with Remote Desktop Protocol?<\/b><\/p>\n

                              \n
                            1. 22<\/span><\/li>\n
                            2. 25<\/span><\/li>\n
                            3. 3389<\/span><\/li>\n
                            4. 443<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 3<\/b><\/p>\n

                              Explanation:<\/b><\/p>\n

                              TCP port 3389 is commonly associated with Microsoft’s Remote Desktop Protocol, or RDP. RDP allows authorized users to remotely interact with supported Windows systems through a graphical session. Port 22 is commonly associated with SSH, port 25 is traditionally used for SMTP, and port 443 is commonly associated with HTTPS. Technicians troubleshooting RDP connectivity should check whether remote access is enabled, firewall rules permit the connection, the host is reachable, and authentication requirements are satisfied. Exposing remote services directly to untrusted networks should be carefully controlled.<\/span><\/p>\n

                              Question 295.<\/b><\/h3>\n

                              Which component stores firmware instructions for system startup?<\/b><\/p>\n

                                \n
                              1. RAM<\/span><\/li>\n
                              2. Firmware chip<\/span><\/li>\n
                              3. Cache<\/span><\/li>\n
                              4. VRAM<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 2<\/b><\/p>\n

                                Explanation:<\/b><\/p>\n

                                A firmware chip stores low-level instructions required to initialize hardware and begin the system startup process. Modern computers commonly use flash-based firmware associated with UEFI, allowing firmware updates without replacing the physical chip. RAM is volatile working memory, cache provides high-speed temporary storage close to processing units, and VRAM is dedicated to graphics operations. Technicians should follow the motherboard manufacturer’s procedures when updating firmware because an interrupted or incorrect firmware update can leave a system unable to boot. Backup and recovery procedures should be considered where supported.<\/span><\/p>\n

                                Question 296.<\/b><\/h3>\n

                                Which wireless technology commonly connects peripherals over short distances?<\/b><\/p>\n

                                  \n
                                1. Bluetooth<\/span><\/li>\n
                                2. LTE<\/span><\/li>\n
                                3. GPS<\/span><\/li>\n
                                4. NFC<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 1<\/b><\/p>\n

                                  Explanation:<\/b><\/p>\n

                                  Bluetooth is widely used to connect nearby peripherals such as keyboards, mice, headsets, speakers, and other personal devices. It is designed for short-range communication and generally requires devices to establish a pairing relationship before normal use. LTE provides cellular connectivity, GPS supports satellite-based positioning, and NFC is intended for very short-range interactions such as tap-based communication. Technicians troubleshooting Bluetooth peripherals should check pairing state, device visibility, battery level, supported profiles, interference, and operating-system configuration. Removing an outdated pairing and establishing a new one can sometimes resolve connection problems.<\/span><\/p>\n

                                  Question 297.<\/b><\/h3>\n

                                  Which cable category supports Gigabit Ethernet over twisted pair?<\/b><\/p>\n

                                    \n
                                  1. Cat 3<\/span><\/li>\n
                                  2. Cat 5<\/span><\/li>\n
                                  3. Cat 5e<\/span><\/li>\n
                                  4. RG-6<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 3<\/b><\/p>\n

                                    Explanation:<\/b><\/p>\n

                                    Cat 5e cabling is commonly used to support Gigabit Ethernet over twisted-pair copper connections under appropriate installation conditions. It improves upon older Cat 5 specifications and is widely deployed in structured Ethernet networks. Cat 3 is an older category associated with lower-speed networking and telephone applications, while RG-6 is a coaxial cable rather than twisted-pair Ethernet cabling. Technicians should consider cable length, termination quality, connector condition, and environmental interference when troubleshooting Ethernet performance. Properly installed Cat 5e remains suitable for many standard Gigabit network deployments.<\/span><\/p>\n

                                    Question 298.<\/b><\/h3>\n

                                    Which device protects equipment from sudden voltage spikes?<\/b><\/p>\n

                                      \n
                                    1. Surge protector<\/span><\/li>\n
                                    2. Access point<\/span><\/li>\n
                                    3. Media converter<\/span><\/li>\n
                                    4. Patch panel<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 1<\/b><\/p>\n

                                      Explanation:<\/b><\/p>\n

                                      A surge protector helps protect connected electrical equipment from sudden voltage spikes by diverting or limiting excessive transient voltage. It is commonly used with computers, displays, networking equipment, and other sensitive electronics. An access point provides wireless network connectivity, a media converter changes network transmission media, and a patch panel organizes cable terminations. Surge protection is different from battery backup because a surge protector does not normally keep equipment operating during a power outage. Technicians should check protection ratings, grounding, equipment load, and the condition of the surge-protection device.<\/span><\/p>\n

                                      Question 299.<\/b><\/h3>\n

                                      Which component provides wireless network connectivity to a desktop PC?<\/b><\/p>\n

                                        \n
                                      1. Sound card<\/span><\/li>\n
                                      2. Wireless NIC<\/span><\/li>\n
                                      3. Capture card<\/span><\/li>\n
                                      4. RAID controller<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 2<\/b><\/p>\n

                                        Explanation:<\/b><\/p>\n

                                        A wireless network interface card, or wireless NIC, provides Wi-Fi connectivity to a computer. It can be integrated into the motherboard or installed as an expansion device, such as a PCIe adapter or USB wireless adapter. A sound card handles audio processing, a capture card receives audio or video signals for recording or streaming, and a RAID controller manages storage arrays. Technicians installing a wireless NIC should verify operating-system drivers, antenna connections, supported wireless standards, security compatibility, and available expansion interfaces. Proper antenna placement can also affect wireless performance.<\/span><\/p>\n

                                        Question 300.<\/b><\/h3>\n

                                        Which technology allows one USB connection to deliver data and charging power?<\/b><\/p>\n

                                          \n
                                        1. USB Power Delivery<\/span><\/li>\n
                                        2. VGA signaling<\/span><\/li>\n
                                        3. SATA transfer<\/span><\/li>\n
                                        4. PS\/2 input<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 1<\/b><\/p>\n

                                          Explanation:<\/b><\/p>\n

                                          USB Power Delivery, commonly called USB PD, allows compatible USB-C connections to negotiate and deliver electrical power while the same connection carries data when supported by the devices and cable. This capability enables laptops, phones, docks, displays, and other equipment to share charging and connectivity through compatible USB-C infrastructure. VGA is an analog video technology, SATA is primarily used for storage communication, and PS\/2 is a legacy peripheral interface. Technicians should verify the power capabilities of the host, charger, dock, and cable because USB-C physical compatibility does not guarantee identical power-delivery capabilities.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full CompTIA A+ 220-1101 Exam Dumps and Practice Test Dumps   Question 281. Which interface commonly connects a computer to a docking station? VGA USB-C PS\/2 RJ11 Correct Answer: 2 Explanation: USB-C is commonly used to connect modern laptops to docking stations. Depending on the laptop and dock, a USB-C connection can carry data, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1648,1647],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22295"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=22295"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22295\/revisions"}],"predecessor-version":[{"id":22296,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22295\/revisions\/22296"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=22295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=22295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=22295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}