CompTIA A+ 220-901 – Flashcards
Unlock all answers in this set
Unlock answersquestion
What device in the computer system does all the processing of information obtained from various input devices?
answer
CPU
question
What PC component is referred to as primary storage and loses its content when power is removed?
answer
RAM
question
Where are the instructions to start the computer system stored?
answer
BIOS
question
What type of firmware supports the new Secure Boot option which guarantees the integrity of the startup files?
answer
UEFI
question
Which CPU feature needs to be enabled in the BIOS and is designed to help thwart malware attempts to corrupt the system files?
answer
No Execute Bit or Disable Execute Bit
question
What device is described as a mini computer in your pocket running a mobile operating system?
answer
Smart phone
question
Which PC component provides data communications for all other internal and external components?
answer
Motherboard
question
A data pathway in a computer system is referred to as what?
answer
Bus
question
Which component modifies AC voltage into DC voltage?
answer
Power supply
question
What are the three voltages provided by the power supply in most systems?
answer
3.3, 5, 12
question
How many pins are contained in the SATA data cable?
answer
7
question
How many devices are supported by the USB 3.0 standard?
answer
127
question
What is the voltage provided by the USB standard?
answer
5V
question
What type of port is traditionally used for mice and keyboards?
answer
PS/2
question
What is the cable limit for the USB 2.0 standard?
answer
5m
question
What is the cable length limitation for Ethernet network cables?
answer
100m
question
What category of UTP is most commonly used and provides the ability to achieve 1Gbps transfer speeds?
answer
Cat5e
question
Which type of network cabling uses optical pulses of light instead of electrical signals?
answer
Fiber optic
question
What is the primary protocol that is used on the internet and LANs today?
answer
TCP/IP
question
Which network service is responsible for resolving user friendly names to numerical IP addresses?
answer
DNS or Domain Name System
question
Which network service is used to assign IP addresses to clients that are attempting to connect to the network?
answer
DHCP
question
Which laptop component is the most likely to need replacing?
answer
Battery
question
What can be used to ensure long battery life in a portable computer?
answer
Power options
question
What are the small areas used to store data entering and leaving the CPU called?
answer
Registers
question
The primary internal component within a CPU that performs the calculations is known as what?
answer
ALU or Arithmetic Logic Unit
question
Modern CPUs typically have multiple ___________ that really allow the CPU to act as more than a single CPU.
answer
Cores
question
The most common architecture for CPUs today is __________________?
answer
X86 or 32-bit
question
What is the latest standard for RAM that operates at bandwidths up to 12,800 Mbps?
answer
DDR3-1600 or PC 12800
question
What is the data path for modern memory which allows modules to be installed individually and provide 8 bytes of data transfer simultaneously?
answer
64-bit
question
Which component is most likely to use a DVI-D connection on the PC?
answer
Monitor or video card
question
Which technology is often used to send output information to a high definition television as opposed to a monitor?
answer
HDMI
question
Which optical media has a maximum capacity on the original dual layer discs of 50GB?
answer
Blu ray
question
Which optical media can use two layers of the disc in order to right 8.5 GB of data?
answer
DVD - 9 or DVD-DL
question
TCP/IP addresses in the current version most heavily used today are ___________ bits long.
answer
32
question
The subnet mask provides what functionality in relation to the IP address?
answer
Separates and distinguishes the network ID and host ID portions of the address
question
What device should you suspect if you smell a burning smell coming from the PC?
answer
power supply
question
What is the value of 1101 1100 in decimal?
answer
220
question
What network device is used to transmit packets from source to destination between network segments?
answer
Router
question
What type of Internet connection is a high speed shared data access connection often capable of 75Mbps or more?
answer
Cable
question
What type of printer uses toner to produce the image on the paper?
answer
Laser
question
During what stage of the laser printing process is the image imprinted on the EP drum by the laser?
answer
Writing
question
Which stage of the laser printing process is last and ensures that the toner is melted to the paper?
answer
Fusing
question
Which chip on the motherboard handles high speed communications for video and RAM?
answer
Northbridge
question
What component must you often upgrade in a typical system if you are working with higher end graphics required in gaming?
answer
Video Card
question
Which standard is most utilized for display adapters in modern systems?
answer
PCIe
question
Which drive standard is not used heavily today and required master/slave configuration for multiple drives on the same channel?
answer
IDE
question
Which drive standard is capable of up to 600Mbps data transfer rates for magnetic and SSD?
answer
SATA 3
question
Which standard provides high speed data transfer at 800Mbps for voice, video, and audio and allows 63 devices on a single channel?
answer
Firewire
question
Which Wi-Fi standard provides data transfer up to 54Mbps on the 2.4Ghz frequency range?
answer
802.11g
question
What is the latest encryption standard for wireless communications that would utilize AES for encryption and protect connection keys using a passphrase?
answer
WPA-2
question
What should you enable to hide your wireless network from users unless they knew its name?
answer
Disable SSID broadcast
question
What is the term used to describe wireless communications that integrate wired and wireless technologies and use an access point?
answer
Infrastructure mode
question
What is the standard connector on a UTP cable?
answer
RJ-45
question
Why type of cabling must you run if you are to utilize the HVAC vents to run network lines?
answer
Plenum rated cabling or plenum
question
Which component should you check if you are getting garbled output to a printer?
answer
Device driver
question
All modern devices support __________________ so device drivers are loaded automatically and resources configured when the device is first connected to the system?
answer
Plug and Play
question
Which device is used to prevent traffic from one network to another network segment and is commonly used at the network perimeter?
answer
Firewall
question
Which network device has replaced hubs in most networks due to increased efficiency?
answer
Switch
question
What internal hardware component is used for secondary storage?
answer
Hard drive
question
How many pins are contained in the Molex drive connector?
answer
4
