Selasa, 19 Juli 2011

Exam - IT Essentials: PC Hardware and Software (v 4.1)

Chapter 1 s/d 10

 Chapter 1 Exam - IT Essentials: PC Hardware and Software (Version 4.1)
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.)
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?
 Which IEEE standard defines the FireWire technology
1- biometric authentication device
2- digital camera
Which two devices are considered input devices? (Choose two.)
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.)
Which technology would be best to use for drive redundancy and data protection?
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?
Which memory module has a front side bus speed of 200 MHz?
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?

Chapter 2 Exam - IT Essentials: PC Hardware and Software (Version 4.1
1- compressed air
2- soft cloth
Which two tools are recommended for cleaning a PC? (Choose two.) 
Which tool should be used if a user needs to optimize space on a hard drive? 
1- Antivirus software
2- Spyware Remover
Which two types of tools can help protect a computer from malicious attacks? (Choose two.) 
Disk Management
Which tool in Windows XP gives a technician access to initialize disks and create partitions?
Phillips-head screwdriver
Refer to the exhibit. Which type of tool is presented in the graphic?
touching an unpainted part of the computer case
How does a technician discharge static buildup?
System File Checker
Which Windows XP command-line utility scans the critical files of the operating system and replaces any files that have been corrupted?
1- Spyware Remover
2- Defrag
3- Disk Cleanup
The performance of a computer is reduced after it has been using the Internet. Which three tools could be run to try to improve the performance of the computer? (Choose three.)
digital multimeter
Refer to the exhibit. Which type of tool is shown in the graphic?
Which condition refers to a sudden and dramatic increase in voltage, which is usually caused by lightning?
Turn off and remove the power source.
Which step should be performed first when servicing computer equipment?
1- antistatic wrist strap
2- antistatic mat
Which two tools can help protect against ESD? (Choose two.)
1- wireless phones
2- microwaves
Which two devices commonly affect wireless LANs? (Choose two.)
1- electrical storms
2- power lines
What are two significant sources of EMI? (Choose two.) 
to equalize the electrical charge between a person and the equipment
Why should an antistatic wrist strap be worn when working on electronic equipment? 
It provides reference material for similar problems when such problems are encountered in the future
Why is documentation of all services and repairs an important organizational tool for a technician?
1- batteries
2- monitors
3- printer toner cartridges
Which three computer components contain hazardous materials and require special handling for disposal? (Choose three.) 
Avoid using magnetized tools.
Which precaution should be taken when working around electronic devices?
compressed air
A technician has a room of computers which are running very hot. The technician discovers that the heat sinks in the computers are very dusty. What should the technician use to clean the heat sinks? 
CRT monitor
Which computer components must a technician never try to work on when wearing an antistatic wrist strap?

Chapter 3 Exam - IT Essentials: PC Hardware and Software (Version 4.1)

20-pin connector
         A technician is installing a new power supply in a computer. Which type of power connector should be used to connect to an ATX motherboard?
Pin 1 on the CPU is aligned with Pin 1 on the ZIF socket.
When installing a CPU in a ZIF socket, how should the technician align the pins to avoid damage?
1- hard drive
2- floppy drive
When building a computer, which two components are normally installed in 3.5-inch drive bays? (Choose two.)
1- PS/2
2- USB
Which two connectors are used to connect external peripherals? (Choose two.)
1- PCIe
2- PCI
A field technician has been asked to install a wireless 802.11g NIC in a computer, but is unsure about the expansion slots available. Which two types of wireless NICs should the technician have available? (Choose two.)
during the POST
After a technician has assembled a new computer, it is necessary to configure the BIOS. At which point must a key be pressed to start the BIOS setup program? 
It issues a number of short beeps.
A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error?
Use standoffs to keep the motherboard above the metal base.
Which action is recommended to prevent the motherboard from contacting the metal base of the case? 
The floppy cable has a twist in the cable.
What is a convenient way that a technician can tell whether a ribbon cable is for an IDE hard drive or a floppy drive? 
optical drive
Which type of drive is installed in a 5.25-inch bay?
Check the motherboard manual or manufacturer's website.
What is the most reliable way for users to buy the correct RAM to upgrade a computer? 
performs a check on all internal components
What is a function of the BIOS?
Reattach the side panels to the case.
What should be the next installation step after all the internal components of a PC have been installed and connected to 
Step 2
Refer to the exhibit. Which should be the last step when connecting external cables to a computer? 
provides an interface between a computer and a display monitor
What is a function of a video adapter card?
to provide functionality for external components to be connected to the computer
What is a function of the adapter cards that are installed in a computer?
1- a floppy data cable to connect the FDD to the motherboard
2- a cable from the power supply to the Berg power connector on the FDD
Which two connections should be provided to a floppy disk drive during installation? (Choose two.) 
in internal bays
Where should internal drives be installed in a computer? 
Steps 1, 4, 3
Refer to the exhibit. What is the order of steps that should be followed for a power supply installation in a computer? 
Consult the website of the manufacturer
What is the first step that a technician should take before physically opening a computer case?

Chapter 5 Exam - IT Essentials: PC Hardware and Software (Version 4.1)
the Windows XP Hardware Compatibility List
Once minimum hardware requirements are satisfied, where should a technician look to determine if the computer hardware has been tested with Windows XP?
Run the Microsoft Convert utility.
A technician needs to upgrade the file system on a Windows XP computer from FAT32 to NTFS. Which course of action should be taken to upgrade the file system to NTFS? 
Which set of guidelines is used to ensure that programmers develop applications that are compatible with an operating system? 
Use the Device Manager utility to ensure that all the devices are operational.
A technician has finished installing Windows XP. What should the technician do to verify that all hardware has been installed correctly?
A technician thinks that the file system on a computer has a problem because Windows XP is reporting data integrity issues. Which Windows XP utility will check the file system for errors?
Recovery Console
A technician has a computer that is unable to boot Windows XP properly. The technician has decided that it is necessary to attempt a repair of XP. Which utility will be run if the technician selects Repair XP from the XP boot disk? 
Windows User State Migration Tool
A user decides to install a new version of Windows Vista but needs to retain the configurations and customizations of the current Windows XP operating system. Which software can be used to achieve this?
virtual real mode
Which operating mode is used by Windows XP to run a DOS application?
1- It organizes operating system snap-ins.
2- It can be used to create customized MMCs.
3- It requires administrative privileges to access.
What are three features of the Microsoft Management Console (MMC)? (Choose three.)
Safe Mode with Networking Support
A technician has installed new video drivers on a Windows XP computer and now the monitor shows distorted images. What startup mode can the technician use to access a new driver on the network?
Develop a preventive maintenance plan.
A company with 40 computers needs to reduce repair costs, decrease downtime, and improve reliability. Which task will 
Roll back the driver.
When troubleshooting a printer problem, a technician finds that the operating system was automatically updated with a corrupt device driver. Which solution would resolve this issue?
The operating system will fail to start.
What would be the result of having a corrupt Master Boot Record?
compatibility mode
Which mode allows applications that are not compatible with the current operating system to run in an environment that simulates an earlier operating system? 
Which directory contains Windows XP OS system files?
What is the term for the ability of an operating system to run multiple applications at the same time? 
1- Windows XP Home
2- Windows XP Professional
Which two operating systems can function correctly on a system with 64 MB of RAM? (Choose two.)
128 GB or more
How much RAM can be addressed by a 64-bit operating system?
Which registry file contains information about the hardware and software in the computer system?
1- Changes to disk partitions can be made
2- A clean copy of Windows Vista is installed.
                     3- The location of the Windows installation can be selected
When a computer boots from the Windows Vista disc, which three functions are performed if the Custom (advanced) option is selected? (Choose three.)

Chapter 6 Exam - IT Essentials: PC Hardware and Software (Version 4.1

1- Ethernet
2- modem
Which two laptop ports are used primarily for communication and network connectivity? (Choose two.)
Desktop motherboards typically have a standard form factor and are interchangeable while laptop motherboards are proprietary.
What is the major difference between desktop and laptop motherboards? 
1- mobility
2- size
Which two characteristics make laptops a better choice than desktop computers? (Choose two.)
PC ExpressCard
Which type of interface do current laptops use to achieve similar expansion capabilities as desktops?
Which generation of cell-phone standards was the first to deal with how to send and receive text, photographs, and video?
Select Power Options from within the Control Panel.
Where can a technician change the power schemes on a laptop running Windows XP?
Use a cleaning disc for optical drives.
What is the proper way to clean optical drives? 
1- Use a lint-free cotton cloth.
2- Wipe the disc from the center outward.
Which two actions should be performed to clean the surface of CDs and DVDs? (Choose two.)
Which display technology is most commonly found in modern laptop computers?
1- camera
2- printer
3- scanner
Which three components commonly connect to USB or FireWire ports? (Choose three.)
1- disk drive
2- monitor
Which two devices can be individually configured within Windows XP to power off after the laptop has been idle for a given period of time? (Choose two.)
1- 34mm wide
2- 54mm wide
Refer to the exhibit. Which two form factors are supported by the devices shown in the graphic? (Choose two.)
Refer to the exhibit. A laptop has these graphics on specific keys on the keyboard. Which key would be used in conjunction with the Fn key to connect a laptop to an external monitor?
A technician is replacing a laptop SODIMM. With what component is the technician working?
Attach the AC adapter.
A technician has been called in to troubleshoot a laptop that fails to power on. The technician repeatedly pushes the power button without any results. What should the technician do next?
Reset the laptop to the native resolution.
A technician is responding to a helpdesk ticket for a laptop that has a distorted image of the Windows desktop. What is one possible solution?
Which component should be removed before cleaning a laptop?
1- What software has been installed?
2- How would you describe the problem you are experiencing?
Which two questions that a technician can ask during the troubleshooting process are considered open-ended? (Choose two.)
Refer to the exhibit. Which laptop component port is circled?
Refer to the exhibit. Which type of connection is indicated when a laptop LED is illuminated with the symbol that is shown? 

Chapter 7 Exam - IT Essentials: PC Hardware and Software (Version 4.1)
Which technology is used by laser printers?
Which laser printer component is a metal cylinder that is coated with a light-sensitive insulating material? 
Which software, embedded in a printer, controls how the printer operates and can be upgraded?
Optical Character Recognition
Which software converts scanned pages into text?
website for scanner manufacturer
What is the best source for a Windows-compatible scanner driver? 
print example.txt
Which Windows XP command sends a file named example.txt to the default printer? 
Which printer technology is used in low-cost, photo-quality printers? 
the use of Ethernet or wireless
What is typical of a network printer installation?
Send the print job again. If that fails to work, turn the printer off and back on, then resend the print job. If the problem still exists, reinstall or upgrade the print driver.
Instead of the document that was expected, a printer is printing unusual characters. What should be the next steps in solving this printer problem?
damage to the UPS
What problem might be encountered if a laser printer is plugged into a UPS?
1- Paper Type
2- Print Quality
Refer to the exhibit. Which two printer configuration settings should be modified when changing from standard paper to photo paper? (Choose two.)
1- USB
2- FireWire
Which two interface types can supply power to a scanner or printer? (Choose two.)
Remove power to the printer.
What is the recommended first step in performing printer maintenance? 
removing impurities collected on internal components
Which routine maintenance procedure can extend the life of a printer?
1- rebooting the computer
2- restarting the print spooler
Which two methods can restart a stopped print service? (Choose two.) 
Identify the symptoms.
What is the first step in troubleshooting a printing problem?
moving parts
What is a feature that causes printers to require higher levels of maintenance than other electrical devices require?
1- internal leaks
2- reduced life of the printer
What are two possible negative results from refilling ink cartridges on a printer? (Choose two.) 
1- wiping the glass with cloth
2- removing the glass during cleaning
What are two recommended procedures for proper scanner care and maintenance? (Choose two.)
A museum possesses several old paintings that the curators wish to reproduce and sell in the museum gift shop. Which type of scanner can be used to produce the highest-quality reproduction?