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Minggu, 21 November 2010
kunci cisco chapter 13 essentials (4.0)
Diposting oleh Muhammad Syukri di 16.26Refer to the exhibit. Which type of connection is being established between the PDA and the infrared keyboard?
broadband
line-of-sight
reflective
scatter
The accounting department has received a new laser printer. According to the printer technical specification, the printer complies with the Bluetooth Class 2 specification. What is the maximum distance that any device could be expected to successfully send print jobs?
3 ft (1 m)
10 ft (3 m)
33 ft (10 m)
100 ft (30 m)
330 ft (100 m)
Which type of encryption key should be enabled on WPA-compliant devices?
28-bit
32-bit
64-bit
128-bit
255-bit
A user reports that his laptop works on AC power, but it is unable to work with the battery alone. What should be done to troubleshoot and fix the problem?
Replace the AC adapter.
Replace the battery.
Replace the CPU.
Replace the laptop.
Which two types of batteries should be completely discharged and then fully recharged to remove the charge memory? (Choose two.)
Li-ion
Ni-Cad
Ni-CH
Ni-Hid
NiMH
NiMO
The design department recently doubled the RAM capacity in all of the laptops. After the upgrade, the laptop users reported experiencing improved performance. Which operational benefit have the users noticed after the RAM increase?
The CPU reduces the number of operations by cycle.
The BIOS can use more RAM for I/O buffer space.
The CPU is now able to implement throttling.
The hard disk swap file is read less frequently.
The hard disk partitions are automatically extended
Which three standard procedures are commonly included in a laptop preventive maintenance schedule? (Choose three.)
cleaning
hard-drive maintenance
hardware updates
software acquisition
software updates
training
Which three laptop components should be cleaned during routine maintenance? (Choose three.)
CPU fan
exterior case
hard disk
cooling vents
keyboard
RAM
Which portable connection provides the user with the possibility of high-speed Internet connectivity?
cable
cellular
dial-up
DSL
mobile LAN
Which wireless technology offers a maximum data rate of 540 Mbps?
802.3a
802.3n
802.5
802.11g
802.11n
Which standard uses a 64-bit or 128-bit key to secure Wi-Fi services?
IPGP
SecIP
VPN
WiFiSP
WPA
Which two sources can be used to determine the amount of currently installed RAM on a computer? (Choose two.)
Add/Remove Hardware utility
Administrative Tools utility
POST screen
System Properties utility
Windows BIOS wizard
kunci cisco chapter 12 essentials (4.0)
Diposting oleh Muhammad Syukri di 15.08What are two reasons for creating two partitions? (Choose two.)
improve the performance of the disk system
increase the capacity of the disk system
*separate data files and operating system
*allow the computer to be dual booted
implement disk mirroring
A technician boots a Windows XP computer that has an incorrect driver loaded for the video adapter card. How can the technician revert to a previous driver?
Select Create a Restore Point from System Tools.
Use the Regedit utility to remove the information about the graphics driver from the registry.
*Select the video adapter card in Device Manager, select the Driver tab, and click Roll back driver from Properties.
Right-click the Desktop and choose Settings > Advanced > Reset video driver.
A video-file editor defragments the hard drive on his computer every month to ensure continuing optimal performance. How can the editor ensure that the defragmentation occurs every month?
Select the Action menu item in the Defrag utility and then select Schedule.
*Add Defrag to Scheduled Tasks in System Tools.
Set the Scheduled flag for Defrag in HKEY_CLASSES_ROOT.
In Ntbackup, select the option to do a Defrag; set the schedule for monthly but do not specify any files to backup.
A technician is having trouble repairing a difficult Windows XP problem. The usual quick-fix solutions did not work and there are no obvious clues found in either Device Manager or Event Viewer. What two actions should the technician try next? (Choose two.)
Reinstall the operating system.
*Check back through the repair documentation to determine if a similar problem has been found before.
*Check the Internet for possible solutions.
Ask the supervisor for assistance.
Use the recovery CD to restore the operating system.
Which action should be taken to start the defragment utility when using the Windows XP Category View?
Right-click the Desktop and choose Disk Management > Defragment.
Choose Start > Control Panel > Performance and Maintenance > Scheduled Tasks > Defragment.
*Double-click My Computer, right-click the disk to defragment, and choose Properties > Tools > Defragment Now.
Choose Start > Run, enter defragment in the text box, and click OK.
Which virtual memory attribute is the only one a technician should change?
page file structure
*location
access rights
archive flag
A user has observed that the performance of the hard disk has degraded over time. What is the first thing a user should do to improve performance?
*Defragment the hard disk.
Replace the hard disk.
Convert the file system to a more efficient one.
Change the size of the partitions on the hard disk.
When configuring Windows XP, which setting configures a service to run every time a computer is started?
always
*automatic
boot
start
Which file determines the prompt a user sees during the boot process when multiple operating systems are present?
*BOOT.INI
BOOTSECT.DOS
NTLDR
OSKNL.DLL
What is the most common cause of blue screen errors?
*device driver errors
user errors
memory errors
monitor errors
While attempting to run an application, a user receives an error message indicating that a required RPC service is unavailable. The user determined that the RPC server is functioning properly. Which action should be tried next by the user?
Restart the service.
*Reinstall the application.
Reinstall the service.
Enable server activation in the firewall.
Which information is backed up when a restore point is created?
user data and applications only
*system and Registry information only
all the content of a given partition
selected user and system information
Which two pieces of information are required when configuring Automatic Updates for Windows XP? (Choose two.)
*day
destination
source
*time
update period
A user wishes to dual boot Windows XP and Windows Vista on a computer with a single hard drive. Which advice should the technician provide the user?
It is impossible to dual boot XP and Vista without a second hard drive.
It is necessary to remove XP first, then reinstall Vista and XP in that order.
*It is necessary to create a second partition and install Vista into the second partition.
Vista identifies the existence of an XP partition and installs into the same partition.
A technician is setting up an e-mail client for a customer. Which two protocols can the technician select to retrieve e-mails from the e-mail server? (Choose two.)
FTP
HTTP
*IMAP
*POP
SMTP
SNMP
Which feature do Internet browsers provide to improve performance when accessing recently visited websites?
*using cache memory
registering favorite websites
saving history of URLs visited daily
managing of updates and cookies
A Windows XP user has upgraded a computer by installing a second hard drive. The user wants to improve the performance of the computer by moving the page file to the new drive. How can the user move the page file?
Choose My Computer > C: > Windows > System32 > pagefile. Cut the page file and paste it into D:.
Choose My Computer > C: > Windows > System32. Right-click pagefile, click Move, and choose the new drive.
*Choose Start > Control Panel > Performance and Maintenance > System > Advanced > Performance > Settings > Advanced. Click the new drive.
Choose Start > All Programs > Accessories > System Tools > Virtual Memory > Location. Click the new drive.
Which action configures Windows Explorer to display file extensions?
*Choose Start > Control Panel > Folder Options > View, uncheck the Hide extensions for known file types check box.
Choose My Documents > Tools > Folder Options > View, check the Show file extensions check box.
Right-click the Desktop, choose File Properties > Extensions > Show Extensions.
Right-click Start, choose Properties > Folder Attributes, check the Show file extensions check box.
Sabtu, 20 November 2010
kunci cisco chapter 11 essentials (4.0)
Diposting oleh Muhammad Syukri di 17.58A technician suspects that a hard drive is beginning to fail. Which two conditions would support this suspicion? (Choose two.)
//The hard drive is making unusual noises.
The hard drive must be defragmented often.
**The hard drive has a gradual increase in the number of bad sectors.
The hard drive light is lit briefly during the boot process.
The hard drive light is lit briefly when programs are loaded.
Why should you use an antistatic mat when working on the internal components of a computer?
protect the technician against electrical shock
//reduce the chance of computer components being damaged by ESD
prevent the technician's tools from being damaged by ESD
protect computer components from AC voltage while working on the computer
A technician makes a habit of wearing an antistatic wrist strap when working on computers and peripherals. Which component should be repaired without wearing an antistatic wrist strap?
hard drives
memory
//printers
NIC
A computer is consistently locking up when applications are loaded. Which action could remedy the situation?
Defragment the hard drive.
Update the database for the anti-virus software.
Reinstall the operating system.
//Install new RAM
While performing routine maintenance on a computer, a user is cleaning dust and debris from the PC using compressed air. How should the technician hold the can of compressed air to avoid damaging the PC?
upside down to avoid blowing the dust upward
//upright to avoid fluid leakage
inside the PC at close distance to the motherboard
outside the PC to avoid blowing dust outside the PC
Which two components are considered input devices? (Choose two.)
printer
//camera
projector
//MIDI interface
speaker
A technician begins gathering data from a customer by asking open-ended questions. Which question is a proper open-ended question?
Were any recent updates performed?
Has anyone installed new software in the past two days?
Are you the only user to use the PC recently?
//What happens when the PC is powered on?
A technician has noted an abnormally large number of errors when using a floppy drive. The technician decides to clean the floppy drive to remedy the problem. What should be used to clean the floppy drive?
a vacuum cleaner
//a drive cleaning kit
an ammonia-based spray cleaner
a non-abrasive cleaner and water
What is the recommended way to clean an optical drive?
//Use compressed air and lint-free swabs.
Use cotton swabs and denatured alcohol.
Use a vacuum cleaner.
Use glass cleaner and a lint-free cloth.
What are three reasons to add an additional hard drive to a computer? (Choose three.)
//to store the system swap file
//to implement RAID and provide fault tolerance
to speed up the Internet download speed
//to install a second operating system
to decrease the time needed for defragmentation
to increase the CPU speed
Which three peripherals would be considered output devices? (Choose three.)
camera
//display monitor
keyboard
microphone
//projector
//speaker
Which course of action should be taken to close an application that has stopped responding?
//Use Ctrl-Alt-Delete to open Task Manager and end the task.
Use Ctrl-C to open Services and end the task.
The stalled application can only be closed by using a warm reboot.
Enter [application-name] halt -30s at the Run dialog box to stop the application in 30 seconds.
Which two motherboard features must be compatible when selecting a new CPU? (Choose two.)
//chip set
number of expansion slots
quantity of memory
//socket type
number of USB interfaces
A technician is helping a client select additional RAM for a computer. Which three items should be considered when updating RAM? (Choose three.)
The quantity of memory must exceed the size of the swap file.
The memory must be compatible with the video card.
//The memory must be compatible with the motherboard.
//The new memory must be the same type as the memory already present.
The memory must be as fast as the cache found in the CPU.
//The speed of the new memory must be the same or faster than the existing memory.
Which type of hard drive cable connects drives in a daisy chain series and requires manual termination at each end of the daisy chain to prevent data corruption?
PATA
SATA
//SCSI
USB
A technician has installed a new processor for a client in an attempt to improve the performance of an older computer. After installing the processor, the technician is unable to start the system. Which three steps should be taken first to solve the problem? (Choose three.)
Install new memory.
//Reseat the processor.
Verify that heatsink fans are connected to the power supply.
//Flash the BIOS.
//Verify motherboard compatibility with the BIOS version and the CPU.
Flash the CPU instruction set.

