Saturday, 12 November 2011

Desktop Support Interview Questions & Answers

Ujwal’s Questions & Answers For Desktop Engineer L1


1  What are the Ports on Motherboard ?
Parallel port :- It has 26 pin input and 25 pins output use to connect printer. It is also called LPT1 Line Printer Terminal
USB port : Universal serial bus use to connect USB devices

2  What are the Slots on Motherboard ?
ISA slots : Industrial Standard Architecture slot. Available in 8 bits and 16 bits use to connect sound card, display card and LAN card
PCI Slots : Peripheral Component Interface slot. Available in 32, 64 and 128 bit use to connect expansion cards like LAN card
AGP : Accelerator Graphic Port use to connect graphic card
AMR Slots : Audio Modem Riser use to connect internal AMR modem
CNR Slots : Communication Network Riser. This slot is advanced of AMR slot use to connect internal AMR modem as well as other communication network adapter

     3 What are the Connectors & Pins on Motherboard
12 Pins power supply connector used in AT type of cabinet
20 Pins power supply connector used in ATX type of cabinet

Pins for Hard disk
Now days we are using 24 pins power supply connector
HDD Controller : There are two HDD controller on a single motherboard called as IDE1 and IDE 2
IDE (Integrated Device Electronic) each have 40 pins

4  Describe Three types of RAM Socket
SIMM : Single Inline Memory Module use to connect two types of RAM, 30 and 72 Pin SIMM RAM
DIMM : Dual Inline Memory Module use to connect 184 pin DIMM RAM
RIMM :- Rambus Inline Memory Module use to connect 184 Pin RD RAM

5 Describe BIOS
Basic Input Output System. This is a chip required to control, to manage and to detect all hardware of system. Function of BIOS is to store user level changes in hardware setting and to always provide effective setting of hardware

6 Describe CMOS Battery
Complementary Metal Oxide Semiconductor. It is a +3 V battery and use to give a backup to the BIOS chip as well as date and time setting

7 Describe ROM
PROM : Programmable ROM. This is basically a blank ROM Chip that can be written but only once
EPROM : Erasable PROM. This is just like a PROM except that you can erase the ROM by shining ultra violet rays on sensor on the top of the ROM chip for a certain amount of time
EEPROM : Electrical Erasable PROM

     8. What are the types RAM ?
RAM is the basic unit of the data storage. It is a volatile means all the data is lost when the power is turn off
Dynamic RAM : It is a type of RAM that only holds the data if it is continuously accessed by the special type of logic called refresh circuit
FPM RAM : Fast Page Mode
SDRAM : Synchronous Dynamic RAM. It is still DRAM but it is synchronize to the system clock
EDO RAM : Extended Data Output
ECC : Error Correction Code
SG : Synchronous Graphic
VRAM : Video
RDRAM : Rambus
DDR : Double Data Rate
SRAM : Static RAM. Static RAM is a type of RAM which holds the data without external refresh circuit for as long as power is supplied. SRAM is faster than DRAM
     9  Describe BUS Speed
The rate of communication speed between two contact points on a single PCB (Planted Circuit Board) OR The rate of communication speed between microprocessor and RAM
    10 Access Time/Speed
The rate of access the data by the RAM (Nano seconds 10 raise to -9)

     11 What are the types of Hard Disk ?
WDC : Winchester Disk controller. Develop by IBM. 34 Pin controller, 20 Pin data controller, jumper setting, 4 pin power supply
IDE : Integrated Device Electronic. 40 pin data controller

Hard disk can be detected in CHS, LBA and DMA mode
Logic area defining on the hard disk is called partition mode. Partition can be created by 3 ways,

    12  How many ways you can create partition in hard disk ?
First party utility : At the time of OS installation
Second party utility : Command base utility using fdisk
Third party utility : Using third party utility like disk manager

    13  Describe two types of Monitor
CRT Monitor : It use cathode rays and phospurese to produce image
LCD Monitor : It use liquid to create image

Primary Memory: A type of memory in which data and information are stored temporary eg ROM and RAM.
Secondary Memory: A type of memory in which data and information are stored permanently. Eg HD and FD

    14  Describe Difference between file systems

[1] Supports partition up to
[2] No file, folder security

File & folder security.
[3] No data compression

Data compression.
[4] No EFS

[5] No disk quota

Disk quota.
[6] No sharing level security

Sharing level security.

How many logical drives is it possible to fit on to a physical disk?
Maximum of 24 logical drives. The extended partition can only have 23 logical drives.

16 Describe Operating System
A type of software which is use to manage user and hardware is called as operating system.
O.S establishes the communication between hardware and application software.
System file of DOS – i/o.sys, msdos.sys,
Kernel file:- Particular os file which directly communicates with the hardware of system.
                   Kernel file of DOS:- i/o.sys, msdos.sys
                   Windows:- kernal32.dll
Shell file:- Particular os file which act as interpreter between user and hardware of system. It means it converts user level language into machine level language.
                   Shell file of Dos:-
                    Windows:- xplorer.exe
Windows XP:- Windows Experience Professional.
17 Which boot files required to boot system
NTLDR – loader file
NTDETECT.COM – recognizes hardware
BOOT.INI – OS menu
BOOTSECT.DOS – alt boot sector
SYSTEM32\CONFIG - registry
SYSTEM\32\DRIVERS\*.SYS – drivers
18 What is min hardware requirement for XP ?
P1 133 MHz,
64 MB RAM,
1.5GB free hard disk space.
19 What are the types of XP
Windows      XP Home edition,
                    Media center edition,
                    Tablet PC,
                    64 bit version.
20 Describe Features of  Windows XP

Win 2000 and Win XP both are based on the NT kernel.
   Fast user switching
   Client server architecture
            Remote desktop connection and restore option if crash
            Enhanced software restriction policies
            Encrypting File System (EFS) with multi-user support
            IP Security (IPSec)
            Internet Explorer Add-on Manager
            Windows Firewall
            Windows Firewall Exception List
            Windows Firewall Application and Port Restrictions
21 What is min hardware requirement for Win 98
            Memory: - 32 - 64 MB
            Disk Space: - 400 MB
22 What is min hardware requirement for Vista
512 MB RAM

23 What is min hardware requirement for Exchange Server
P3 700 MHz
256MB RAM but recommended 512MB,
15GB of free hard disk space.
24 What is min hardware requirement for Window 2000 server
Pentium 133 recommended 350 MHz
64 MB recommended 128 MB RAM
VGA recommended SVGA
650 MB free disk space 2 GB recommended and 6.4 GB available

25 What are the types of Win 2003 Server family:-
Standard server,
Advanced server,
Enterprise edition,
Data center edition,
Media center edition,
Web edition

26 Installation of XP
Press the power supply button------ press del/f2/Num key to enter into bios------ advanced setup press any key to boot from cd------ enter to continue------ f8 to likens agreement------ here if u want to create partition then press C and  fill up partition size in mb------( repeat this process to create another partition)------  if u want to delete the partition then press d------  select c partition press enter to continue------ select format the partition using FAT or NTFS file system------
  Now u r computer is from hard disk------ next---- fill up name and organization------ fill up serial key q7q6wq3846rgdbm6r8833736g------ next---- fill up computer name------ next---- adjust date and time setting------ next---- typical setting------ next---- no this computer is not on network------ next------ finish------ restart computer------ next------ skip no not at this time------ next------ fill up the user name----------- finish.
27 Unattended installation of XP
Insert Win XP cd into cd rom, it auto run------ exit------ My computer------ Rt. click on cd rom colon------ open------ double click on support folder------ double click on tools folder------ double click on depoly.cab5(copy all the files of this folder) then Rt. click------ extract------ expand My computer------ take an partition eg. C------ make a new folder------ make deploy tools folder------ extract------ then goes to folder which we create, here we see all these files------- double click on setupmgr.exe----- next------ create new next------ unattended setup next------ Win XP professional next------- fully automated next------ create a new distribution share next------ on the cd next------ next------ accept the license agreement next------ fill up the name and organization next------ next------ then define date and  time setting next------ then fill up product key next------ fill up computer name------ fill up password if required------ next------ typical setup/setting next------ next----- next------ use the default region next------ language Indic next------ use the default internet explorer setting next------ a folder name windows next------ next------ next------ Finish------ ok. Here all files of the cd has been coping in the windist named folder.
Now at the client side_____________________
     Start------ run------ browse------ double click on my network places icon------ double click on entire network------ double click on Microsoft windows network------- double click on domain name------ after this double click on that computer on which answer file is there------ double click on windist folder------ double click on I386------ select WINNT32 and open------ all these appears in run of following type____
Eg. Uni-awvvitwotac\windist\I386\WINNT32.exe            unattended------ ok.
After this only type serial number.
28 Installation of Vista
Installation of Windows Vista
......Press any key to continue ------ we can see setup into GUI mode------ Install now------ fill up product key------ next------ select Windows Vista Business------ check mark on I accept the license terms------ next------ click on custom setup------ Here if we want to create portions then click on create partion and select new------ then define space near about 15GB------ format------ next------ type user name and password------ next------ next------ ask me latter------ next------ select date and time setting------ next------ work------ start.
29 Installation of Exchange Server
Insert Exchange cd (auto run)----- exchange deployment tool------ deploy the 1st exchange 2003 server------ new exchange 2003 installation------ check mark on no.8 and click on run the setup now------ next I agree next next create a new exchange organization next next I agree next next ok[then enter into ADS users and computers----- built-in------ double click on pre windows 2000 group members select NT authority and remove yes ok] finish.

30 Difference between Windows NT and 2000

Windows NT                                       Windows 2000
a) Directory Service                             Active Directory Service
b) FAT16 and NTFS 4.0                       FAT16, FAT32 and NTFS 5.0
c) Compression                                   Compression, Encryption and Disk Quota
d) System Policy                                 Group Policy
e) Local and Global Group                  Local, Global and Universal Group
f) No IPsec                                           IPsec builtin
g) 40000 user limit                             100000 user limit
h) NTLM authentication                     NTLM and Kerberos authentication
i) Basic disk                                        Basic and Dynamic Disk

31 Difference between Windows NT and 2003

Windows NT                                       Windows 2003
a) Directory Service                            Active Directory Service
b) FAT16 and NTFS 4.0                      FAT16, FAT32 and NTFS 5.0
c) Compression                                  Compression, Encryption and Disk Quota
d) System Policy                                 Group Policy
e) Local and Global Group                 Local, Global and Universal Group
f) No IPsec                                          IPsec builtin
g) 40000 user limit                            100000 user limit
h) NTLM authentication                     NTLM and Kerberos authentication
i) Basic disk                                       Basic and Dynamic Disk
j) No Shadow                                      Copy Shadow copy
k) ERD                                                 ASR

32 Difference between Windows 2000 Server and 2003 Server

Windows 2000                         Windows 2003
a) No Shadow copy                              Shadow Copy feature
b) No RPC over HTTP                           RPC over HTTP
c) 32 bit                                               32 bit and 64 bit
d) no Domain rename features            domain rename feature
e) Terminal Service                              Remote desktop and assistance
f) ERD                                                  ASR
g) less command line tool                    more command line tools
h) No Stub DNS                                   Stub DNS
i) IIS 5                                                  IIS 6

33 Difference between Windows 2000 Prof and Windows XP prof

Windows 2000 Prof                  Windows XP prof
a) ERD                                               ASR
b) Terminal Service                            Remote Desktop and assistance
c) IE 5                                                 IE 6
d) No Firewall                                     Basic firewall
e) NO Alternate IP configuration        Alternate IP configuration
f) NO System restore                          System restore
g) NO Driver rollback feature             Driver rollback feature

34 Difference between Windows XP home and Windows XP prof

Windows XP home                    Windows XP professional
a) no Remote desktop                          remote desktop
b) NO Offline folders                            Offline folders
c) 1 processor                                       2 processor
d) workgroup member                          Work group and domain member
e) NO Encryption                                  Encryption
f) NO GPO                                             GPO
g) NO Roaming profile                          Roaming profile
h) no ASR                                             ASR

35 Difference between Windows XP and Windows 98

Windows XP                             Windows 98
a) Remote desktop                             No Remote desktop
b) GPO                                               No GPO
c) 2 processor                                     1 processor
d) NTLM & Kerberos                          NTLM authentication
e) Encryption                                     NO Encryption
f) Disk Quota                                     NO Disk Quota
g) FAT, FAT32 and NTFS                    FAT and FAT32
h) IE 5                                                IE 4

36 Difference between Windows 95 and Windows 98

Windows 95                             Windows 98
a) NO USB support                            USB support
b) FAT 16 and FAT32 for R2              FAT16 and FAT32
c) Single monitor                               Multiple monitor
d) NO Direct X                                   Direct X
e) IE3                                                 IE 4
f) NO APM (Adv. Power Management) APM


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