{"id":22269,"date":"2026-09-25T12:07:47","date_gmt":"2026-09-25T12:07:47","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=22269"},"modified":"2026-09-25T12:07:47","modified_gmt":"2026-09-25T12:07:47","slug":"comptia-a-220-1101-practice-test-questions-and-exam-dumps-part2-q21-40","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/comptia-a-220-1101-practice-test-questions-and-exam-dumps-part2-q21-40\/","title":{"rendered":"CompTIA A+ 220-1101 Practice Test Questions and Exam Dumps Part2 Q21-40"},"content":{"rendered":"

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

 <\/p>\n

Question 21.<\/b><\/h3>\n

Which motherboard component contains firmware used during startup?<\/b><\/p>\n

    \n
  1. CMOS battery<\/span><\/li>\n
  2. System fan<\/span><\/li>\n
  3. BIOS\/UEFI chip<\/span><\/li>\n
  4. Memory controller<\/span><\/li>\n<\/ol>\n

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

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

    The BIOS or UEFI firmware initializes hardware and performs essential startup procedures before handing control to the operating system. It can detect installed hardware, configure system settings, and select an appropriate boot device. The CMOS battery maintains certain configuration information and the real-time clock, but it does not contain the firmware itself. A system fan provides cooling, while a memory controller manages communication involving system memory. When troubleshooting startup problems, technicians may enter the firmware interface to inspect hardware detection, boot order, security settings, and configuration options.<\/span><\/p>\n

    Question 22.<\/b><\/h3>\n

    Which connector is commonly used for analog microphone input?<\/b><\/p>\n

      \n
    1. RJ45<\/span><\/li>\n
    2. 3.5mm TRS<\/span><\/li>\n
    3. USB-B<\/span><\/li>\n
    4. SATA<\/span><\/li>\n<\/ol>\n

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

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

      A 3.5mm TRS audio connector is commonly used for analog audio connections, including microphone and line-level interfaces. Depending on the device and connector configuration, it can carry microphone, headphone, or other analog audio signals. RJ45 is primarily associated with Ethernet networking. USB-B is commonly found on peripherals such as printers, while SATA connects internal storage devices. When troubleshooting microphone problems, technicians should verify the correct audio jack, operating-system input selection, microphone permissions, volume level, and physical cable condition.<\/span><\/p>\n

      Question 23.<\/b><\/h3>\n

      Which CPU feature allows multiple execution threads per core?<\/b><\/p>\n

        \n
      1. Hyper-Threading<\/span><\/li>\n
      2. Turbo Boost<\/span><\/li>\n
      3. SpeedStep<\/span><\/li>\n
      4. Virtualization<\/span><\/li>\n<\/ol>\n

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

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

        Intel Hyper-Threading allows a physical CPU core to present multiple logical processors to the operating system. This can improve processor utilization when workloads contain multiple simultaneous threads. Hyper-Threading does not create additional physical cores; instead, it allows execution resources within a core to handle multiple threads more efficiently. Turbo Boost dynamically increases processor frequency when appropriate thermal and power conditions exist. SpeedStep adjusts processor frequency and voltage to balance performance and power consumption. Virtualization technology supports running virtual machines and is a separate processor capability.<\/span><\/p>\n

        Question 24.<\/b><\/h3>\n

        Which storage interface is specifically designed for PCIe-based NVMe drives?<\/b><\/p>\n

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

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

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

          M.2 is a compact form factor commonly used for modern storage devices, including PCIe-based NVMe SSDs. NVMe communicates over PCI Express and is designed for high-performance solid-state storage. M.2 itself describes the physical form factor and connector, so not every M.2 drive necessarily uses NVMe; some M.2 devices use SATA. PATA and IDE refer to older parallel storage technologies, while SATA is a separate storage interface. When installing an M.2 SSD, technicians should verify the motherboard’s supported keying, protocol, physical size, and available PCIe or SATA connectivity.<\/span><\/p>\n

          Question 25.<\/b><\/h3>\n

          Which component removes heat directly from a processor?<\/b><\/p>\n

            \n
          1. Power supply<\/span><\/li>\n
          2. CPU heatsink<\/span><\/li>\n
          3. CMOS battery<\/span><\/li>\n
          4. Expansion bracket<\/span><\/li>\n<\/ol>\n

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

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

            A CPU heatsink absorbs heat from the processor and transfers it into its metal fins, where airflow can dissipate the heat. Many systems combine a heatsink with a fan to improve cooling efficiency. Thermal compound is normally applied between the processor and heatsink to improve thermal transfer by filling microscopic surface imperfections. A power supply provides electrical power, the CMOS battery maintains selected motherboard functions, and an expansion bracket helps secure cards or other components. Proper CPU cooling is essential because excessive temperatures can cause throttling, instability, or automatic shutdown.<\/span><\/p>\n

            Question 26.<\/b><\/h3>\n

            Which wireless technology is primarily used for short-range peripheral connections?<\/b><\/p>\n

              \n
            1. Wi-Fi<\/span><\/li>\n
            2. Bluetooth<\/span><\/li>\n
            3. WiMAX<\/span><\/li>\n
            4. Cellular<\/span><\/li>\n<\/ol>\n

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

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

              Bluetooth is designed for short-range wireless communication between devices such as keyboards, mice, headsets, speakers, smartphones, and other peripherals. It generally consumes less power than technologies intended for broader network connectivity. Wi-Fi is primarily used for local network and internet access, while cellular technology provides wide-area mobile connectivity. WiMAX was designed for broadband wireless networking over greater distances. When pairing Bluetooth devices, technicians should check that Bluetooth is enabled, the devices are discoverable when required, sufficient battery power is available, and previously paired devices are not interfering with the connection.<\/span><\/p>\n

              Question 27.<\/b><\/h3>\n

              Which RAID configuration provides striping without redundancy?<\/b><\/p>\n

                \n
              1. RAID 0<\/span><\/li>\n
              2. RAID 1<\/span><\/li>\n
              3. RAID 5<\/span><\/li>\n
              4. RAID 6<\/span><\/li>\n<\/ol>\n

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

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

                RAID 0 distributes data across multiple drives using striping. This can improve storage performance because read and write operations can occur across multiple disks, but RAID 0 provides no redundancy. If one participating drive fails, the entire RAID 0 dataset can become unavailable. RAID 1 uses mirroring, while RAID 5 and RAID 6 use distributed parity for fault tolerance. RAID 0 may therefore be selected when performance is more important than redundancy, but critical data should have a separate backup because RAID 0 itself does not protect against drive failure.<\/span><\/p>\n

                Question 28.<\/b><\/h3>\n

                Which port is commonly used by SSH?<\/b><\/p>\n

                  \n
                1. 23<\/span><\/li>\n
                2. 80<\/span><\/li>\n
                3. 22<\/span><\/li>\n
                4. 110<\/span><\/li>\n<\/ol>\n

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

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

                  Secure Shell, or SSH, commonly uses TCP port 22 for secure remote administration and command-line access. SSH encrypts the communication session, helping protect credentials and transmitted information from interception. Port 23 is traditionally associated with Telnet, which does not provide comparable encryption. Port 80 is commonly used for HTTP, while port 110 is traditionally associated with POP3 email retrieval. During network troubleshooting, technicians can verify firewall rules, service configuration, and connectivity to determine whether an SSH connection is being blocked or the remote service is unavailable.<\/span><\/p>\n

                  Question 29.<\/b><\/h3>\n

                  Which printer type uses heated ink droplets to create output?<\/b><\/p>\n

                    \n
                  1. Laser<\/span><\/li>\n
                  2. Thermal<\/span><\/li>\n
                  3. Inkjet<\/span><\/li>\n
                  4. Impact<\/span><\/li>\n<\/ol>\n

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

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

                    Inkjet printers create images by ejecting tiny droplets of liquid ink onto paper through microscopic nozzles. They are commonly used for color documents and photo printing. Laser printers use toner and an imaging system, while impact printers physically strike an ink ribbon against paper. Thermal printers use heat to produce images on appropriate media or through a thermal transfer process. Common inkjet problems include clogged printheads, faded output, streaking, and incorrect color reproduction. Technicians can address these issues by checking ink levels, printhead condition, alignment, and media settings.<\/span><\/p>\n

                    Question 30.<\/b><\/h3>\n

                    Which display connector supports digital video and audio transmission?<\/b><\/p>\n

                      \n
                    1. DisplayPort<\/span><\/li>\n
                    2. VGA<\/span><\/li>\n
                    3. DVI-A<\/span><\/li>\n
                    4. Composite video<\/span><\/li>\n<\/ol>\n

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

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

                      DisplayPort is a digital display interface capable of carrying video and, depending on implementation, audio over a single connection. It is commonly found on desktop graphics cards, monitors, and docking equipment. VGA is an analog video interface, while DVI-A carries analog video signals. Composite video is an older analog video technology. DisplayPort versions provide different capabilities related to resolution, refresh rate, and display features. When troubleshooting a monitor connection, technicians should verify the correct input source, cable type, supported resolution, graphics configuration, and compatibility between the computer and display.<\/span><\/p>\n

                      Question 31.<\/b><\/h3>\n

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

                        \n
                      1. UPS<\/span><\/li>\n
                      2. Surge protector<\/span><\/li>\n
                      3. Power inverter<\/span><\/li>\n
                      4. Battery charger<\/span><\/li>\n<\/ol>\n

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

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

                        A surge protector is designed to reduce the impact of sudden voltage spikes on connected electrical equipment. It can help protect computers and peripherals from transient increases in electrical voltage. A UPS provides battery backup and may include surge protection, allowing equipment to remain powered during certain outages. A power inverter converts direct current into alternating current, while a battery charger replenishes rechargeable batteries. Surge protectors have finite protection capacity, so technicians should inspect their status indicators and replace units when their protective components have reached the end of their service life.<\/span><\/p>\n

                        Question 32.<\/b><\/h3>\n

                        Which laptop memory form factor is smaller than a desktop DIMM?<\/b><\/p>\n

                          \n
                        1. SDRAM<\/span><\/li>\n
                        2. SO-DIMM<\/span><\/li>\n
                        3. ECC RAM<\/span><\/li>\n
                        4. Registered DIMM<\/span><\/li>\n<\/ol>\n

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

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

                          SO-DIMM, or Small Outline DIMM, is a compact memory-module form factor commonly used in laptops, small-form-factor computers, and some compact systems. Its reduced physical dimensions make it suitable where internal space is limited. Standard desktop DIMMs are larger and are commonly installed in full-size desktop systems. ECC describes an error-detection and correction capability rather than a physical form factor, while registered DIMMs are designed for particular server and workstation platforms. When upgrading laptop memory, technicians must confirm the correct module type, memory generation, capacity, speed, and system support.<\/span><\/p>\n

                          Question 33.<\/b><\/h3>\n

                          Which technology allows a computer to run multiple operating systems simultaneously?<\/b><\/p>\n

                            \n
                          1. RAID<\/span><\/li>\n
                          2. Hypervisor<\/span><\/li>\n
                          3. NFC<\/span><\/li>\n
                          4. DHCP<\/span><\/li>\n<\/ol>\n

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

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

                            A hypervisor enables virtualization by creating and managing virtual machines that can run separate operating systems on the same physical hardware. Type 1 hypervisors operate directly on physical hardware, while Type 2 hypervisors run on top of a host operating system. RAID manages storage across multiple drives, NFC provides short-range wireless communication, and DHCP automatically provides network configuration information. Virtualization can improve hardware utilization and simplify testing or development. Technicians should consider processor virtualization support, available memory, storage capacity, and network requirements when configuring virtual machines.<\/span><\/p>\n

                            Question 34.<\/b><\/h3>\n

                            Which connector is typically used for internal SATA storage data?<\/b><\/p>\n

                              \n
                            1. Molex<\/span><\/li>\n
                            2. PCIe x16<\/span><\/li>\n
                            3. SATA data<\/span><\/li>\n
                            4. ATX12V<\/span><\/li>\n<\/ol>\n

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

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

                              A SATA data connector connects compatible internal storage devices such as SATA hard drives and SATA solid-state drives to the motherboard. SATA power is supplied through a separate connector from the power supply. Molex connectors are older peripheral power connectors, PCIe x16 is an expansion-slot interface commonly used for graphics cards, and ATX12V provides processor-related power to supported motherboards. When installing a SATA drive, technicians should connect both the SATA data and appropriate power cables and confirm that the motherboard firmware and operating system detect the device.<\/span><\/p>\n

                              Question 35.<\/b><\/h3>\n

                              Which security technology encrypts an entire storage drive?<\/b><\/p>\n

                                \n
                              1. Full-disk encryption<\/span><\/li>\n
                              2. File compression<\/span><\/li>\n
                              3. Disk defragmentation<\/span><\/li>\n
                              4. Partition formatting<\/span><\/li>\n<\/ol>\n

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

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

                                Full-disk encryption protects data stored across an entire storage device by encrypting its contents. It helps prevent unauthorized access to information if a computer or drive is lost or stolen. Modern operating systems can use technologies such as BitLocker or other platform-specific encryption mechanisms to provide this protection. File compression reduces storage requirements but does not inherently provide confidentiality. Defragmentation reorganizes files, while formatting prepares storage for use and can remove existing filesystem structures. Proper encryption-key management remains essential because losing the required recovery information can prevent legitimate access.<\/span><\/p>\n

                                Question 36.<\/b><\/h3>\n

                                Which network device primarily forwards frames using MAC addresses?<\/b><\/p>\n

                                  \n
                                1. Router<\/span><\/li>\n
                                2. Modem<\/span><\/li>\n
                                3. Switch<\/span><\/li>\n
                                4. Firewall<\/span><\/li>\n<\/ol>\n

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

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

                                  A network switch primarily forwards Ethernet frames using MAC addresses. It learns which devices are reachable through particular switch ports and uses that information to forward traffic efficiently within a local network. A router makes forwarding decisions primarily using IP addresses between different networks. A modem provides connectivity by converting or adapting signals for a particular communication medium, while a firewall enforces configured security rules. When troubleshooting local connectivity, technicians can inspect switch-port status, link indicators, VLAN configuration, and MAC address learning to identify potential connectivity problems.<\/span><\/p>\n

                                  Question 37.<\/b><\/h3>\n

                                  Which component provides backup power during a short electrical outage?<\/b><\/p>\n

                                    \n
                                  1. Surge suppressor<\/span><\/li>\n
                                  2. UPS<\/span><\/li>\n
                                  3. Power strip<\/span><\/li>\n
                                  4. Voltage regulator<\/span><\/li>\n<\/ol>\n

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

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

                                    An uninterruptible power supply, or UPS, provides temporary battery-backed power when the main electrical supply fails or falls outside acceptable conditions. This allows connected equipment to continue operating long enough for the outage to end or for the system to shut down safely. A surge suppressor helps reduce voltage spikes but does not normally provide battery power. A power strip provides multiple electrical outlets, while a voltage regulator helps maintain a stable output voltage. UPS capacity should be selected according to the connected equipment’s power requirements and desired runtime.<\/span><\/p>\n

                                    Question 38.<\/b><\/h3>\n

                                    Which CPU socket type uses pins on the motherboard socket?<\/b><\/p>\n

                                      \n
                                    1. LGA<\/span><\/li>\n
                                    2. PGA<\/span><\/li>\n
                                    3. BGA<\/span><\/li>\n
                                    4. ZIF<\/span><\/li>\n<\/ol>\n

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

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

                                      LGA, or Land Grid Array, processors use flat contact pads on the CPU while the corresponding pins are located in the motherboard socket. This differs from PGA designs, where pins are located on the processor itself. BGA components are soldered directly to the board and are commonly found in compact systems such as laptops and mobile devices. ZIF, or Zero Insertion Force, describes a socket mechanism that minimizes insertion force rather than identifying where processor contacts are located. Technicians must match the CPU socket and motherboard compatibility before installation.<\/span><\/p>\n

                                      Question 39.<\/b><\/h3>\n

                                      Which protocol automatically assigns IP configuration to clients?<\/b><\/p>\n

                                        \n
                                      1. DNS<\/span><\/li>\n
                                      2. DHCP<\/span><\/li>\n
                                      3. SMTP<\/span><\/li>\n
                                      4. SNMP<\/span><\/li>\n<\/ol>\n

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

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

                                        Dynamic Host Configuration Protocol, or DHCP, automatically provides network configuration information to compatible clients. Depending on the environment, DHCP can assign an IP address, subnet mask, default gateway, and DNS server information. DNS resolves names to IP addresses, SMTP is used for email transmission, and SNMP supports network-device monitoring and management. If a computer receives an automatic private address instead of the expected network configuration, technicians can investigate DHCP availability, server scope settings, network connectivity, and VLAN configuration.<\/span><\/p>\n

                                        Question 40.<\/b><\/h3>\n

                                        Which connector is commonly used to connect a monitor to a computer using analog video?<\/b><\/p>\n

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

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

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

                                          VGA is a legacy analog video connector commonly used to connect computers to compatible monitors and projectors. It transmits analog video rather than the digital signals used by HDMI and DisplayPort. USB-C can carry multiple types of data and, when supported, digital display signals through compatible alternate modes. When troubleshooting a VGA connection, technicians should check the cable pins, connector seating, display input selection, and configured resolution. Because VGA is an older standard, modern systems may require an appropriate adapter when connecting to legacy display equipment.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full CompTIA A+ 220-1101 Exam Dumps and Practice Test Dumps   Question 21. Which motherboard component contains firmware used during startup? CMOS battery System fan BIOS\/UEFI chip Memory controller Correct Answer: 3 Explanation: The BIOS or UEFI firmware initializes hardware and performs essential startup procedures before handing control to the operating system. It can […]<\/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\/22269"}],"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=22269"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22269\/revisions"}],"predecessor-version":[{"id":22270,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/22269\/revisions\/22270"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=22269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=22269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=22269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}