1) What is Active Directory?A central component of the Windows platform, Active Directory directory service provides the means to manage theidentities and relationships that make up network environments. For example we can create, manage and administratorusers, computers and printers in the network from active directory.2) What is DNS? Why it is used? What is "forward lookup" and "reverse lookup" in DNS? What are A records andmx records?DNS is domain naming service and is used for resolving names to IP address and IP addresses to names. The computerunderstands only numbers while we can easily remember names. So to make it easier for us what we do is we assignnames to computers and websites. When we use these names (Like yahoo.com) the computer uses DNS to convert to IPaddress (number) and it executes our request.Forward lookup: Converting names to IP address is called forward lookup.Reverse lookup: Resolving IP address to names is called reverse lookup.A record: Its called host record and it has the mapping of a name to IP address. This is the record in DNS with the help ofwhich DNS can find out the IP address of a name.MX Record: its called mail exchanger record. Its the record needed to locate the mail servers in the network. This record isalso found in DNS.3) What id DHCP? Why it is used? What are scopes and super scopes?DHCP: Dynamic host configuration protocol. Its used to allocate IP addresses to large number of PCs in a networkenvironment. This makes the IP management very easy.Scope: Scope contains IP address like subnet mask, gateway IP, DNS server IP and exclusion range which a client can useto communicate with the other PCs in the network.Superscope: When we combine two or more scopes together its called super scope.4) What are the types of LAN cables used? What is a cross cable?Types of LAN cables that are in use are "Cat 5" and "Cat 6". "Cat 5" can support 100 Mbps of speed and "CAT 6" cansupport 1Gbps of speed.Cross cable: Its used to connect same type of devices without using a switch/hub so that they can communicate.5) What is the difference between a normal LAN cable and cross cable? What could be the maximum length of theLAN cable?The way the paired wires are connected to the connector (RJ45) is differentin cross cable and normal LAN cable.The theoretical length is 100 meters but after 80 meters you may see drop in speed due to loss of signal.6) What would you use to connect two computers without using switches?Cross cable.7) What is IPCONFIG command? Why it is used?
IPCONFIG command is used to display the IP information assigned to a computer. From the output we can find out the IPaddress, DNS IP address, gateway IP address assigned to that computer.8) What is APIPA IP address? Or what IP address is assigned to the computer when the DHCP server is not available?When DHCP server is not available the Windows client computer assigns an automatic IP address to itself so that it cancommunicate with the network computers. This ip address is called APIPA. ITs in the range of 169.254.X.X.APIPA stands for Automatic private IP addressing. Its in the range of 169.254.X.X.9) What is a DOMAIN? What is the difference between a domain and a workgroup?Domain is created when we install Active Directory. Its a security boundary which is used to manage computers inside theboundary. Domain can be used to centrally administrator computers and we can govern them using common policies calledgroup policies.We cant do the same with workgroup.10) Do you know how to configure outlook 2000 and outlook 2003 for a user?Please visit the link below to find out how to configure outlook 2000 and outlook 2003. IT: Help Desk: Quick Guide:Configuring Outlook 2003 for Exchange Server11) What is a PST file and what is the difference between a PST file and OST file? What file is used by outlook express?PST file is used to store the mails locally when using outlook 2000 or 2003. OST file is used when we use outlook in cachedexchanged mode. Outlook express used odb file.12) What is BSOD? What do you do when you get blue screen in a computer? How do you troubleshoot it?BSOD stands for blue screen of Death. when there is a hardware or OS fault due to which the windows OS can run it give ablue screen with a code. Best way to resolve it is to boot the computer is "Last known good configuration".If this doesnt work than boot the computer in safe mode. If it boots up than the problems with one of the devices or drivers.13) What is RIS? What is Imaging/ghosting?RIS stands for remote installation services. You save the installed image on a windows server and then we use RIS to installthe configured on in the new hardware. We can use it to deploy both server and client OS. Imaging or ghosting also doesthe same job of capturing an installed image and then install it on a new hardware when there is a need. We go for RIS orimaging/ghosting because installing OS every time using a CD can be a very time consuming task. So to save that time wecan go for RIS/Ghosting/imaging.14) What is VPN and how to configure it?VPN stands for Virtual private network. VPN is used to connect to the corporate network to access the resources like mailand files in the LAN. VPN can be configured using the steps mentioned in the KB: How to configure a VPN connection toyour corporate network in Windows XP Professional15) Your computer slowly drops out of network. A reboot of the computerfixes the problem. What to do to resolve this issue?Update the network card driver.16) Your system is infected with Virus? How to recover the data?
Install another system. Install the OS with the lates patches, Antivirus with latest updates. Connect the infected HDD assecondary drive in the system. Once done scan and clean the secondary HDD. Once done copy the files to the new system.17) How to join a system to the domain? What type of user can add a system to the domain?Please visit the article below and read "Adding the Workstation to theDomain" http://www.microsoft.com/technet/pro...003/technol /directory/18) What is the difference between a switch and a hub?Switch sends the traffic to the port to which its meant for. Hub sends the traffic to all the ports.19) What is a router? Why we use it?Router is a switch which uses routing protocols to process and send the traffic. It also receives the traffic and sends it acrossbut it uses the routing protocols to do so.20) What are manageable and non manageable switches?Switches which can be administered are called manageable switches. For example we can create VLAN for on such switch.On no manageable switches we cant do so.Q. What are the main differences between the following operating systems?A. Unfortunately, most companies have not been able to standardize the operating systems used by users. It’s always critical that youknow more than just the current version because there will always be a user who has a problem with an older version. By asking thisquestion, the hiring manager is actually testing your knowledge of different operating systems that you may need to support. Thefollowing provides a concise summary of some of the major differences.Windows 2000 and XPOverall, XP is a minor update with Windows 2000 designed to get Windows 2000 technology into the hands of consumers. Themajor changes include the following: Device driver rollback Remote control (single-user terminal services) New Start menu, control panel, and user interface elements Fast user switching Encrypted file system support for redirected folders Better support for roaming wireless networking Enhanced policies Credential Manager Personal firewallQ. What are typical virus sources and how do you prevent virus attacks?A. This is virus protection 101 just to ensure that you understand the basics of protecting against viruses. Possible virus sourcesinclude e-mail attachments, Internet downloads, and infected floppy disks. To prevent virus infections: Use anti-virus software. Perform regular updates to the virus software definition files and scan engines. Verify updates have succeeded. Perform regularly scheduled virus checks. Configure software to check all files, not just program files. Educate users on virus attacks, their consequences, and how to prevent them. Know where all software came from. Do regular backups.
Develop reporting mechanisms to inform server administrators of observed desktop infections and how these could impact the server environment (such as deletions or corruption of files on public shares, hidden payload files that might have been uploaded to servers, and so on).What is difference between win XP and wn 7 technicallyDisk shrinking and extending is available in windows 7Start up and shutdown will be fastuser defined themea program called psr is availableAnswered by: SHAMIM HAIDER on: Apr 28th, 2012Many differences in win xp and win7..1) ip6 version not include in winxp2) net meeting not include in win7.3) driver automatic install.4) both OS installation different types.5) win7display look better than winxpConnectivity troubleshootingA user in a corporate network contacts service desk saying he/she has lost network connectivity: how will you troubleshoot theissue? What are the steps to followed?Answered by: shajan on: May 2nd, 2012If the user getting limited connectivity(APIPA ip address)..We need to check with theipconfig /release and ipconfig /renew commandsAnswered by: Javed Khan on: Apr 16th, 2012Check LAN Cablecheck ip addresscheck firewall settingthan ping ip , gateway and dnsHow to install os from server to all system? 7 answersWe can RIS service in Windows Server 2003SP1 and WDS Services Windows serve 2003SP2 and also WDS in Windows server 2008.but we have .inf file of all systems of a network those boot from network.so we can easily install from Server.Ntldr error meaningWhen I boot my computer I have seen on my screen " verifying dmi pool data" and then after second line is shown "ntldr ismissing..." what is this problem and who can I solve it.If NTLDR is missing then we can copy from Cd (i386) to Systems 32.1st we can boot from CD and choose the option of repair windows then we can use command of Copy D:i386NTLDRC:windowsSystems32.For Example our CDDVD drive is D:.Ntldr file corrupt or missing you have to copy ntldr from windows xp i386 FolderHow to install operating system in usb pen drive?First create usb bootable to pen drive, then select first boot device (usb device) from biosStep 1. Format the USB Flash Disk Run CMD (elevated) and type: 1. diskpart 2. list disk (*now find your USB disk number, youll findit by its size) 3. select disk 1 (*if your USB is disk 1)...
What is difference between msi and exe file ?There is no relationship between an MSI file and an .EXE file. An .exe file, like a .com file is produced when source code is compliedand creates a Windows executable program. An .MSI file is a file...Answered by: Jisthi Khan on: Feb 21st, 2012MSI file is only for installation purpose. EXE file can be anything that executes on windows.******Microsoft outlook pst file size limit********What is the pst size limit in outlook97, 2000, 2003, 2007 and 2010?In Outlook 2002 and earlier, the .pst files are in the American National Standards Institute (ANSI) format, and the overall size has alimit of 2 GB. In Outlook 2003 and after, the .pst files are in ...MS outlook in 2003 and 2007 is 2GB, in 2010 is 50GB******Blue screen death***************What is a blue screen of death ? How do you trouble shoot the computer in such situation ?1) First check blue screen error number, is it Application Or Hardware2) Generally this problem comes when problem in RAM so First check computer start with another RAMFirst Step is Remove the RAM and Clean with a rubber on the copper part of the RAM and insert back again and have a check. Ifthe problem is still there then check the hardware parts of the Computer.*******How a virus program destabilize ms windows XP************What is the mechanism of combating those malicious program? Evaluate each techniqueFollow these steps1)Run ->Cmd2)Type netsh3)Firewall4)Now type in "set opmode enable" to start firewall and "set opmode disable" to stop fire wall.By corrupting, or deleting data