Wednesday, February 25, 2009

Quiz # 1 : 3rd trinal

1. What is the reason for technicians to wear special wrist grounding straps?
-This is used to prevent electrostatic discharge when handling computer components. Just like a shock when walking on carpet can carry several thousand volts, it destroys computer components.

(http://wiki.answers.com/Q/What_is_a_wrist_grounding_strap)


2. After installing a new computer component why is it important to obtain the most current driver for it?
-A device driver is a program that controls a particular type of device that is attached to your computer. There are device drivers for printers, displays, CD-ROM readers, diskette drives, and so on. When you buy an operating system, many device drivers are built into the product. However, if you later buy a new type of device that the operating system didn't anticipate, you'll have to install the new device driver. A device driver essentially converts the more general input/output instructions of the operating system to messages that the device type can understand. You need to have a newer version of your device driver because a newer version of a device driver has new features on it.

(http://searchenterprisedesktop.techtarget.com/sDefinition/0,,sid192_gci211938,00.html)

3. What are the steps required to install a peripheral device?
-1.Shutting down the system
2.Connecting the device to the system
3.Rebooting the system
Use How to Add a Peripheral Device to add the following devices that are not hot-pluggable to a system:
CD-ROM
Secondary disk drive
Tape drive
SBUS card
In some cases, you might have to add a third-party device driver to support the new device.
For information on hot-plugging devices, see Chapter 6, Dynamically Configuring Devices (Tasks).
How to Add a Peripheral Device

Become superuser.
(Optional) If you need to add a device driver to support the device, complete the procedure How to Add a Device Driver.
Create the /reconfigure file.
# touch /reconfigure
The /reconfigure file causes the Solaris software to check for the presence of any newly installed devices the next time you turn on or boot your system.
Shut down the system.
# shutdown -i0 -g30 -y

-i0
Brings the system to the 0 init state, which is the appropriate state for turning the system power off for adding and removing devices.
-g30
Shuts the system down in 30 seconds. The default is 60 seconds.
-y
Continues the system shutdown without user intervention. Otherwise, you are prompted to continue the shutdown process.
Select one of the following to turn off power to the system after it is shut down:
For SPARC platforms, it is safe to turn off power if the ok prompt is displayed.
For x86 platforms, it is safe to turn off power if the type any key to continue prompt is displayed.
Turn off power to all peripheral devices.
For the location of power switches on any peripheral devices, refer to the hardware installation guides that accompany your peripheral devices.
Install the peripheral device, making sure that the device you are adding has a different target number than the other devices on the system.
Often, a small switch is located at the back of the disk for selecting the target number.
Refer to the hardware installation guide that accompanies the peripheral device for information on installing and connecting the device.
Turn on the power to the system.
The system boots to multiuser mode, and the login prompt is displayed.
Verify that the peripheral device has been added by attempting to access the device.
For information on accessing the device, see Accessing Devices.

(http://www.answers.com/topic/how-to-install-a-pc-peripheral)



4. If a newly installed peripheral device does not function properly what steps can be taken to correct the problem?

-First, the device doesn't work properly; second, the user remove drivers; third, bug in the software and so on. If device is working properly, what you can do is turn everything off. Then start the pc, wait while it's booting up. After you logged on and windows started turn your device. If nothing was broken it will work again.

(http://wiki.answers.com/Q/A_user_reports_that_a_peripheral_device_that_was_installed_correctly_last_week_has_not_been_functioning_since_the_PC_was_booted_today_All_other_PC_functions_are_working_properly_What_are_three_thing)

5. Explain the technique used to help protect data on a hard drive when doing a clean install?

-One of the techniques available to help protect data is to divide the hard drive
into multiple partitions. With a clean install, many technicians prefer to create one partition for data and a separate partition for the OS. This enables an OS to be upgraded without the risk of losing data. It also simplifies backup and recovery of data files.

(eskilstuna.se/upload/85680/Svar%20kapitel%202.pdf)


6. Explain what a software patch is.

-partition for data and a separate partition for the OS. This enables an OS to be
upgraded without the risk of losing data. It also simplifies backup and recovery of
data files.

(eskilstuna.se/upload/85680/Svar%20kapitel%202.pdf)