IT Essentials-Chapter 1: PC Hardware and Software (Version 4.1)

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 Chapter 1 Exam - IT Essentials: PC Hardware and Software (Version 4.1)

jawaban	pertanyaan
63	How many FireWire devices can be supported by a single FireWire port?
Headphones 3- monitor 2- 1- printer	Which three devices are considered output devices? (Choose three.)
EEPROM	Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?
It can supply power from the computer to devices	Which important feature is offered by the USB standard?
1394	Which IEEE standard defines the FireWire technology
1- biometric authentication device 2- digital camera	Which two devices are considered input devices? (Choose two.)
BTX و  ATX	Which two form factors are commonly used to build a new computer? (Choose two.)
4-pin ،  6-pin	What are the two connector types for the 1394a interface? (Choose two.)
IRQ 1- 2- DMA 3- I/O address	Which three system resources are commonly used for communication between the CPU or memory and other components in the computer? (Choose three.)
RAID	Which technology would be best to use for drive redundancy and data protection?
LCD	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?
1280 x 800	Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?
DDR-400	Which memory module has a front side bus speed of 200 MHz?
IRQs	Which type of computer resources are direct lines to the processor and are used by computer components to request attention from the CPU?
PC hardware and software technician	A student has passed the CompTIA A+ certification exam. Based on this passing score, for which job is the student now qualified?
It instructs the computer how to process information	What is a function of the operating system in a computer?
to move the heat away from the CPU	What is the function of a fan on top of a heat sink?
1- the number of external or internal drive locations 2- the size of the motherboard and the power supply	What are two factors that must be considered when choosing a computer case? (Choose two.)
I = P/V = 100W/9V = 11.11A	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?
provides capability to share a keyboard, a mouse, USB devices, and speakers with multiple computers	What is a function of a KVM switch?

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