KUNCI CISCO

Chapter 1 V4.1 - IT Essentials: PC Hardware and Software
 1.Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?#EEPROM

2.Which two form factors are commonly used to build a new computer? (Choose two.)
#BTX
#ATX

3.Which three devices are considered output devices? (Choose three.)
#headphones
#monitor
#printer 

4.What are the two connector types for the 1394a interface? (Choose two.)
#4-pin
#6-pin

5.Which three system resources are commonly used for communication between the CPU or memory and other components in the computer? (Choose three.)
#IRQ
#DMA
#I/O address

6.Refer to the exhibit. Based on the advertisement that is shown, what is the native resolution of this computer system?
#1280 x 800

7.Which important feature is offered by the USB standard?
#It can supply power from the computer to devices.

8.Which technology would be best to use for drive redundancy and data protection?
#RAID

9. Which type of computer resources are direct lines to the processor used by computer components to request information from the CPU?
#IRQs

10.Which two devices are considered input devices? (Choose two.)
#biometric authentication device
#digital camera


11.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?
#LCD

12.How many FireWire devices can be supported by a single FireWire port?
#63

13. Which memory module has a front side bus speed of 200 MHz?

#DDR-400

14.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

15.What is a function of the operating system in a computer?
# It instructs the computer how to process information

16.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  


17.What is a function of a KVM switch?
# provides capability to share a keyboard, a mouse, USB devices, and speakers with multiple computers

18.What are two factors that must be considered when choosing a computer case? (Choose two.)
# 1- the number of external or internal drive locations
# 2- the size of the motherboard and the power supply

19.What is the function of a fan on top of a heat sink?
# to move the heat away from the CPU

20. Which IEEE standard defines the FireWire technology

# 1394