Udemy Comptia A
98 questions across 0 topics. Use the find bar or section chips to jump to what you need.
Where is the data for a draft word document or a program such as an Excel spreadsheet normally stored?
Hard drive
All the devices connected externally to the system unit are know as what type of devices
Peripherals
Where is all the raw data processed in a PC?
CPU
What are the most commonly used input devices?
keyboard and mouse
What two connectors are used in today's PCs for video output?
HDMI and DVI
Where is the data temporary stored while the CPU processes the data?
RAM
Where are programs stored until they are needed?
hard drive
What sets the CPU speed?
The clock speed
What is the closest location of the data to the CPU?
Level 1 cache
You have just installed Windows 7, but found out some of your programs will not run as they did with Windows Vista. What could be the problem?
The programs are 64-bit and you installed the 32-bit version of Windows 7
How are zero insertion force (ZIF) sockets used?
Makes installing a CPU easier
What socket does an Intel CPU use?
LGA
What type of socket does an AMD CPU use?
PGA
This type of memory has been in use since the beginning and has gone through many improvements, but remains the standard.
DRAM
What type of memory runs at the same cadence as the system clock?
SDRAM
What type of RAM must be installed in pairs?
RIMM
This type of RAM is found in laptops.
SO-DIMM
This type of memory uses two paths which theoretically doubles the data transfer rate.
Dual Channel
Problems in RAM can bring the system to its knees, but it does inform you with messages. Which of these is the most notable?
BSOD
What is name of the main circuit board inside a PC that contains the CPU and RAM?
Motherboard
Which form factor board was inspired by Intel and is in use in many PCs today?
ATX
What part of the motherboard is responsible for data communications between the CPU and hard drives?
Chipset
When a motherboard does not have built-in video or sound, which of these features is mandatory?
Expansion bus
What is a 64 bit wide and runs at 133 MHz?
PCI-X
What is a 32 bit wide and runs at 33 MHz?
PCI
What is the measurement of electrical pressure?
Volts
Electrical current that flows in only one directions is
DC
What is the measurement of electrical power?
wattage
What is measured when amps are being calculated?
current, flow
Which connecter for hard drives has been replaced by SATA connectors?
Molex
What is the term for the separate sections of the PSU that supplies power for the 3.3-, 5-, and 12-volt requirements?
Rails
What is the speed for SATA 2?
3 Gb/s
Which one of these devices looks like a hard drive to the operating system?
SSD
What are the interfaces used by solid state drives?
SATA/AHCI and PCIe/NVMe
A motherboard with a built-in RAID controller is categorized as what type of RAID?
Firmware
What appears as a single large drive?
RAID 0 Array
What uses an expansion card to create and manage drive arrays?
Hardware RAID
Which one of this prefixes is a part of the decimal prefixes?
Kilo
Which one of these prefixes is a part of the IEC binary prefixes?
Mebi
Slow performance is when something in your PC . . .
prevents your system from optimal operation
What cleans your drives and solves slow performance?
Disk Cleanup
What kind of tool is Defragmentation as a default?
Automatic
What is the original format of audio CDs?
CDDA
What is the most common DVD format used?
DVD+R
What is the capacity of a Blu-ray Disc?
25 GB
What is the speed of low-speed USB?
1.5 MB
What input device is used for video conferencing?
Webcam
What must not be used to clean an optical mouse?
Spray Cleaner
Which of these devices are used to capture the Universal Product Code (UPC)?
Bar Code Reader
What is a format for a flash memory?
Secure Digital
What are the specific settings for a device in use?
Configuration
Which of these interfaces can transport both video and audio signals at the same time on their individual cables?
HDMI and DisplayPort
Where is the actual image composed before it is displayed?
GPU
What is the smallest addressable element in a display device?
Pixel
Which device uses DLP?
Projector
Which type of display device will use an inverter?
LCD Panel
What is the current (2016) standard for the default resolution of a LCD display?
1920x1080
What is the role of the RAMDAC?
Convert digitally encoded images into analog signals that can be displayed by a monitor
Which of these is not category(CAT) for network cabling ?
6e
What hardware uses punch down tool ?
110 block
Which of these is not indicated by the link lights
Data loss
How many wires are in a CAT 6 cable?
8
Data is moved from one computer to the next in discrete chunks known as frames. What is the maximum amount of data in each chunk?
1500 bytes
What cable supports long lengths, and is immune to electromagnetic interference?
Fiber Optic
What command can you use to show the IP address, subnet mask, and default gateway for a computer?
lpconfig
What is the network portion of an IP address?
Network ID
What are the commands that can help manually get a IP address?
ipconfig/renew and ipconfig/release
How many ranges are there for a private address?
3
What is the command for continuous pings?
ping/t
What is the command for showing connections to and from your computer ?
Netstats
What directs all inbound ports to a single IP host
DMZ
Which of these is not an 802.11 standard used with computers?
802.11c
Which technology improves the gain when using wireless technologies?
MIMO
What is the most basic form security in wireless networks?
SSID
What uses the 5-GHZ band and runs at 1 GB/s?
802.11ac
Which TCP port is used to receive an email?
110
What will the command netstat-n display?
Active connections
Where does an ISP normally access the Internet?
Tier 3
What does dial-up networking use for communication?
POTS
Which TCP port is used to send email
25
What is an unsecured remote connection utility that uses port 23?
Telnet
What is secure and uses port 443?
HTTPS
What can help you manage your laptop energy and performance?
Power plan
What is the best energy saving mode just short of turning the laptop off?
Hibernation
Which expansion feature accepts cards measuring 30mm x 51 mm and has 52 pins?
Mini PCI Express
How can a laptop utilize a large monitor and external storage while in the office?
Use a docking station
What are types of screen backlight
LED and CCFL
What enables you to connect devices to laptop
Laptop ports
What is an example of a purpose built device?
E-reader
What is an example of a wearable device
Google glass
What is an example of a smart phone?
Galaxy S9
Which cable could you use to connect to projector with a tablet
MHL, but the tablet most support MHL
Which printer uses an erase lamp in the printing process
Laser
What are extra rollers and part included with expensive printers called
Maintenance kit
What is the main part of the laser printer used to create a printed page
Photosensitive drum
Which printer uses pins to print the image on paper
Dot matrix
What unit is responsible for making sure the ink sticks to he paper in the laser printing process
Fuser assembly
Which of these will not cause poor print when using an inkjet printer ?
Print spooler
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