CompTIA A+ 220-901 Questions and Answers 100% Pass

CompTIA A+ 220-901 Questions and Answers 100% Pass What device in the computer system does all the processing of information obtained from various input devices? ✔✔CPU What PC component is referred to as primary sto ...

CompTIA A+ 220-901 Questions and Answers 100% Pass What device in the computer system does all the processing of information obtained from various input devices? ✔✔CPU What 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 to act as more than a single CPU. ✔✔Cores The most common architecture for CPUs today is __________________? ✔✔X86 or 32-bit What is the latest standard for RAM that operates at bandwidths up to 12,800 Mbps? ✔✔DDR3- 1600 or PC 12800 What is the data path for modern memory which allows modules to be installed individually and provide 8 bytes of data transfer simultaneously? ✔✔64-bit Which component is most likely to use a DVI-D connection on the PC? ✔✔Monitor or video card Which technology is often used to send output information to a high definition television as opposed to a monitor? ✔✔HDMI Which optical media has a maximum capacity on the original dual layer discs of 50GB? ✔✔Blu ray Which optical media can use two layers of the disc in order to right 8.5 GB of data? ✔✔DVD - 9 or DVD-DL TCP/IP addresses in the current version most heavily used today are ___________ bits long. ✔✔32 The subnet mask provides what functionality in relation to the IP address? ✔✔Separates and distinguishes the network ID and host ID portions of the address What device should you suspect if you smell a burning smell coming from the PC? ✔✔power supply What is the value of 1101 1100 in decimal? ✔✔220 What network device is used to transmit packets from source to destination between network segments? ✔✔Router What type of Internet connection is a high speed shared data access connection often capable of 75Mbps or more? ✔✔Cable What type of printer uses toner to produce the image on the paper? ✔✔Laser During what stage of the laser printing process is the image imprinted on the EP drum by the laser? ✔✔Writing Which stage of the laser printing process is last and ensures that the toner is melted to the paper? ✔✔Fusing Which chip on the motherboard handles high speed communications for video and RAM? ✔✔Northbridge What component must you often upgrade in a typical system if you are working with higher end graphics required in gaming? ✔✔Video Card Which standard is most utilized for display adapters in modern systems? ✔✔PCIe Which drive standard is not used heavily today and required master/slave configuration for multiple drives on the same channel? ✔✔IDE Which drive standard is capable of up to 600Mbps data transfer rates for magnetic and SSD? ✔✔SATA 3 Which standard provides high speed data transfer at 800Mbps for voice, video, and audio and allows 63 devices on a single channel? ✔✔Firewire Which Wi-Fi standard provides data transfer up to 54Mbps on the 2.4Ghz frequency range? ✔✔802.11g What is the latest encryption standard for wireless communications that would utilize AES for encryption and protect connection keys using a passphrase? ✔✔WPA-2 What should you enable to hide your wireless network from users unless they knew its name? ✔✔Disable SSID broadcast What is the term used to describe wireless communications that integrate wired and wireless technologies and use an access point? ✔✔Infrastructure mode What is the standard connector on a UTP cable? ✔✔RJ-45 Why type of cabling must you run if you are to utilize the HVAC vents to run network lines? ✔✔Plenum rated cabling or plenum Which component should you check if you are getting garbled output to a printer? ✔✔Device driver All modern devices support __________________ so device drivers are loaded automatically and resources configured when the device is first connected to the system? ✔✔Plug and Play Which device is used to prevent traffic from one network to another network segment and is commonly used at the network perimeter? ✔✔Firewall Which network device has replaced hubs in most networks due to increased efficiency? ✔✔Switch What internal hardware component is used for secondary storage? ✔✔Hard drive How many pins are contained in the Molex drive connector? ✔✔4