CompTIA A+ 220-901, Questions and answers, 2022 update, Graded A+

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CompTIA A+ 220-901, Questions and answers, 2022 update, Graded A+ What device in the computer system does all the processing of information obtained from various input devices? - ✔✔CPU Wh... at PC component is referred to as primary storage and loses its content when power is removed? - ✔✔RAM Where are the instructions to start the computer system stored? - ✔✔BIOS What type of firmware supports the new Secure Boot option which guarantees the integrity of the startup files? - ✔✔UEFI Which CPU feature needs to be enabled in the BIOS and is designed to help thwart malware attempts to corrupt the system files? - ✔✔No Execute Bit or Disable Execute Bit What device is described as a mini computer in your pocket running a mobile operating system? - ✔✔Smart phone Which PC component provides data communications for all other internal and external components? - ✔✔Motherboard A data pathway in a computer system is referred to as what? - ✔✔Bus Which component modifies AC voltage into DC voltage? - ✔✔Power supply What are the three voltages provided by the power supply in most systems? - ✔✔3.3, 5, 12 How many pins are contained in the SATA data cable? - ✔✔7 How many devices are supported by the USB 3.0 standard? - ✔✔127 What is the voltage provided by the USB standard? - ✔✔5V What type of port is traditionally used for mice and keyboards? - ✔✔PS/2 What is the cable limit for the USB 2.0 standard? - ✔✔5m What is the cable length limitation for Ethernet network cables? - ✔✔100m What category of UTP is most commonly used and provides the ability to achieve 1Gbps transfer speeds? - ✔✔Cat5e Which type of network cabling uses optical pulses of light instead of electrical signals? - ✔✔Fiber optic What is the primary protocol that is used on the internet and LANs today? - ✔✔TCP/IP Which network service is responsible for resolving user friendly names to numerical IP addresses? - ✔✔DNS or Domain Name System Which network service is used to assign IP addresses to clients that are attempting to connect to the network? - ✔✔DHCP Which laptop component is the most likely to need replacing? - ✔✔Battery What can be used to ensure long battery life in a portable computer? - ✔✔Power options What are the small areas used to store data entering and leaving the CPU called? - ✔✔Registers The primary internal component within a CPU that performs the calculations is known as what? - ✔✔ALU or Arithmetic Logic Unit Modern CPUs typically have multiple ___________ that really allow the CPU [Show More]

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