What are two factors that must be considered when choosing a computer case? (Choose two.)
the size of the monitor
the vendor that manufactured the motherboard
the number of external or internal drive locations
the size of the motherboard and the power supply
the number of LED indicators at the front of the case
What are the two connector types for the 1394a interface? (Choose two.)
What is a function of a KVM switch?
digitizes an image or document and sends the information to multiple computers
stores images from both digital still cameras and digital video cameras on magnetic media
provides capability to share a keyboard, a mouse, USB devices, and speakers with multiple computers
provides biometric identification to an individual user by the use of fingerprints, voice recognition,or a retinal scan
A student has passed the CompTIA A+ certification exam. Based on this passing score, for which job is the student now qualified?
PC hardware and software technician
Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?
Which type of computer resources are direct lines to the processor and are used by computer components to request attention from the CPU?
Which three devices are considered output devices? (Choose three.)
Which technology would be best to use for drive redundancy and data protection?
Which two devices are considered input devices? (Choose two.)
biometric authentication device
Which two form factors are commonly used to build a new computer? (Choose two.)
What is the function of a fan on top of a heat sink?
to cool the memory modules
to move the heat away from the CPU
to draw cool air into the computer case
to provide a water-cooling system for extremely fast CPUs
Which important feature is offered by the USB standard?
A single USB connection to a computer can support up to 255 separate devices.
It offers rates of around 580 Mb/sec in low-speed mode.
It allows up to 920 Mb/sec in the 2.0 version.
It can supply power from the computer to devices.
Which three system resources are commonly used for communication between the CPU or memory and other components in the computer? (Choose three.)
Which memory module has a front side bus speed of 200 MHz?
A technician receives a complaint of poor image quality after the user changes the native resolution. While investigating the complaint, the technician discovers there is a mismatch between native mode and the native resolution of the peripheral. Which item is configured incorrectly?
What is a function of the operating system in a computer?
It defines the physical components in the computer.
It instructs the computer how to process information.
It provides instructions on how to access the Internet.
It identifies the type of firmware that is installed in the computer.
A technician creates a simple circuit that has a 9 V light bulb attached to a 9 V battery. The power output of the light bulb is 100 W. Which equation should be used to calculate how much current in amps is required to achieve the full 100 W output from the 9 V bulb?
I = P/V = 100W/9V = 11.11A
I = P*V = 100W*9V = 900A
I = (P/2)*V = 50W*9V = 450A
I = P*2*V = 100W*(9V + 9V) = 8100A
Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?
1280 x 800
13.35 x 9.57
Which IEEE standard defines the FireWire technology?
How many FireWire devices can be supported by a single FireWire port?
Which type of memory is primarily used as cache memory?
Which two considerations would be of the greatest importance when building a workstation that will run multiple virtual machines? (Choose two.)
high-end sound card
number of CPU cores
powerful video card
amount of RAM
A user playing a game on a gaming PC with a standard EIDE 5400 RPM hard drive finds the performance unsatisfactory. Which hard drive upgrade would improve performance while providing more reliability and using less power?
a 7200 RPM SATA hard drive
a 7200 RPM EIDE hard drive
a 10,000 RPM SATA hard drive
Which hardware upgrade would allow the processor in a gaming PC to provide the optimal gaming performance?
a fast EIDE drive
large amounts of fast RAM
a high capacity external hard drive
Which two storage devices use a magnetic medium for storing data? (Choose two.)
solid state drive
hard disk drive
compact disk drive
blue-ray disk drive
Refer to the exhibit. Which type of adapter is shown?
Which component controls the communications and interactions between the CPU and other components on the motherboard?
Which two pieces of information are needed before selecting a power supply?
the total wattage of all components
the voltage requirements of peripheral devices
the form factor of the case
the type of CPU
the installed operating system
What are the 2 characteristics of RAID 0? (Choose 2 answers)
combination of data striping and parity
high performance and high protection because all data is duplicated
data striping without redundancy
ability of data to be rebuilt with information from the other drives
What are the 2 characteristics of RAID 1? (Choose 2 answers)
What are the 2 characteristics of RAID 5? (Choose 2 answers)
Which unit of measurement is used to indicate the hard drive speed?
pages per minute
revolutions per minute
clusters per minute
Refer to the exhibit. Which type of video card expansion slot is depicted?
What type of connector can be used to connect an eSATA interface to an external SATA drive?
Where can the input voltage selection be changed from 110 volts to 220 volts on a computer system?
on the motherboard
in the BIOS
on the back of the power supply
in the operating system control panel
Which one of the following is a 7-pin cable that connects to an external hard drive?
Which one of the following can support up to 15 devices and must be terminated at the end of the chain?
Which one of the following is a 6-pin mini-DIN connector for a keyboard or a mouse?
Which one of the following transmits 8 bits of data at one time and uses the IEEE 1284 standard?
Which one of the following uses either a DB-9 or DB-25 connector and transmits one bit of data at a time?
Refer to the exhibit. Which type of cable is shown in the graphic?
Which two activities are normally controlled by the Northbridge part of the chipset? (Choose two.)
communication between the CPU and the sound card
communication between the CPU and the hard drive
access to the RAM
communication between the CPU and the I/O ports
access to the video card
A technician looks at a motherboard and sees a 24-pin connector. What component would connect to the motherboard through the use of this 24-pin connector?
PATA optical drive