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Windows Desktop Admin Interview Questions!


> What is Disk Cleanup?
Disk Cleanup is a feature of Windows that enables a user to delete system / junk files safely.
For example, by using the disk cleanup feature, you can free up a considerable amount of space on your pc, like getting rid of TIF (Temporary Internet Files) and other 'useless', and not required, files.

> What is Disk Defragmentation?
Disk defragmentation describes the process of consolidating fragmented files on your computer's hard disk.

Fragmentation happens to a hard disk over time as you save, change, or delete files. The changes that you save to a file are often stored at a location on the hard disk that's different from the original file. Additional changes are saved to even more locations. Over time, both the file and the hard disk itself become fragmented, and your computer slows down as it has to look in many different places to open a file.

Disk Defragmenter is a tool that rearranges the data on your hard disk and reunites fragmented files so your computer can run more efficiently. In this version of Windows, Disk Defragmenter runs on a schedule so you don't have to remember to run it, although you can still run it manually or change the schedule it uses.


> What would you do if a PC is not turning on ?
First Check the Power cables and power supply.

> What is the latest Operating System ?
Windows 7.

> What is a Heat Sink ?
A component designed to lower the temperature of an electronic device by dissipating heat into the surrounding air. All modern CPUs require a heat sink. Some also require a fan. A heat sink without a fan is called a passive heat sink; a heat sink with a fan is called an active heat sink. Heat sinks are generally made of an aluminum alloy and often have fins.

> What is the difference between SATA and PATA Hard-Disk Drives?
Serial ATA and Parallel ATA are both specialized interface and data transfer devices, that are used in computers to connect peripheral storage devices. Both serve the same purpose of data transfer but differ in their basic technology, speed of performance and therefore their niche applications these days.

> What would you do if your system is running slow ?
1.Empty Recycle Bin.
2.Empty Windows Temp folder.
3.Run Scandisk.
4.Run Defragmenter.
5.Full System Virus scan.

> What are Plug & Play devices ?
They are peices of computer hardware that already have the software for them in you system. simply put, you just have to plug it in and you computer does the rest.

> What are Device Drivers?
Device drivers are small files that act like “liaisons” between hardware in a computer system and the operating system (OS). Hardware requires device drivers so that the OS can “see” the devices and handle them effectively and efficiently.

> Difference between IE6 & IE7 ?
ie 6-security issuse are less
ie 7-security issuse are more.

ie 6-tabbed browsing is not there
ie 7-tabbed browsing is available.

ie 6-no advanced printing.
ie 7- advanced printing.

ie 6-no phishing filter.
ie 7-phishing filter available.

ie 6-no tool bar search box.
ie 7- tool bar search box.

ie 6-no advanced delete history.
ie 7-advanced delete browing history option.

ie 6-no page zoom.
ie 7-page zoom.

ie 6-no add-ons disable mode
ie 7-add-ons disable mode.

> What is the difference between a Serial and a Parallel Port ?
Basically a serial port sends and receives data 1 'bit' at a time over a single wire, while a parallel port sends the data a 'byte' at a time over several wires simultaneously.

> Explain the Windows XP Boot Process ?
1.First is the POST, this stands for Power On Self Test, for the computer. This process tests memory as well as a number of other subsystems. You can usually monitor this as it runs each test. After that is complete the system will run POST for any device that has a BIOS (Basic Input-Output System). An AGP has its own BIOS, as do some network cards and various other devices.

2.Once the POST is complete and the BIOS is sure that everything is working properly, the BIOS will then attempt to read the MBR (Master Boot Record). This is the first sector of the first hard drive (called the Master or HD0). When the MBR takes over it means that Windows is now in control.

3.The MBR looks at the BOOT SECTOR (the first sector of the active partition). That is where NTLDR is located, NTLDR is the BOOT LOADER for Windows XP. NTLDR will allow memory addressing, initiate the file system, read the boot.ini and load the boot menu. NTLDR has to be in the root of the active partition as do NTDETECT.COM, BOOT.INI, BOOTSECT.DOS (for multi-OS booting) and NTBOOTDD.SYS (if you have SCSI adapters)

4.Once XP is selected from the Boot Menu, NTLDR will run NTDETECT.COM, BOOT.INI and BOOTSECT.DOS to get the proper OS selected and loaded. The system starts in 16-bit real mode and then moves into 32-bit protected mode.

5.NTLDR will then load NTOSKRNL.EXE and HAL.DLL. Effectively, these two files are windows XP. They must be located in %SystemRoot%System32.

6.NTLDR reads the registry, chooses a hardware profile and authorizes device drivers, in that exact order.

7.At this point NTOSKRNL.EXE takes over. It starts WINLOGON.EXE that in turn starts LSASS.EXE, this is the program that display the Logon screen so that you can logon.

> What do you know about the PING Command ?
Pinging is a command which tells you if the connection between your computer and a particular domain is working correctly.

Eg : C:\Administrator\>Ping 192.168.1.100 or Ping techiebird.com

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