Desktop Support Interview Questions and Answers

Be very careful when answering this question because this is your first big chance to impress and you can do so by stating the facts related to this job. Only talk about previous experience, education and formal training related to this field. It is important to understand that follow up questions may be related to anything you say at this point.

Operating system works as an interpreter between computer Hardware and application. Operation system works as a user interface.

Types of Operating system

• Batch Operating System
• Multiprocessing OS
• Multitasking/Time Sharing OS
• Real Time OS (RTOS)
• Distributed OS
• Mobile OS
• Network OS – Examples of network operating systems include Microsoft Windows Server 2003, Microsoft Windows Server 2008, UNIX, Linux, Mac OS X, Novell NetWare, and BSD.

Safe Mode in Windows is an option that is used for diagnosing the Operating System (OS) and removing any spyware from it. It is also used for troubleshooting the drivers and configuring the software. It allows you to remove unwanted programs from the OS and run diagnostic which you cannot do in normal mode.

It is an error screen that pops up on the computer after a system crash or a fatal system error like:

• High CPU processing and usage.
• Fault in RAM
• Installation of faulty software.

It means that the operating system can no longer operate safely. However, it can be remedied by cleaning the chip of the RAM and if the error still occurs, then check it on another computer to see if the issue is with RAM. There is a unique code to every error of the Blue Screen of Death. Just copy and search on Google about it or contact someone who knows about it.

VPN stands for Virtual Private Network. It is a private server. It is widely used by the government, companies, and organizations to communicate privately over the public or local network. It is like a secure tunnel between the internet and your device. They protect the online traffic from censorship, snooping and other interference.

You can also hide your IP address and location to use the internet anonymously. It encrypts your communication and allows you to stream all your favourite content quickly.

IAS stands for Internet Authentication Service. For many types of network access like wireless, authenticating switch and remote access dial-up they perform accounting and auditing, centralized connection authentication and authorization

When we convert IP address into names is called Reverse lookup, while converting names into IP address is called Forward lookup.

You can add a system to a domain only if you have administration access or the equivalent.

To join your system to a domain:

• First go to the control panel.
• >Select system and security.
• > Click on the system.
• >Go to Computer name, domain, and workgroup settings.
• >Select change settings.
• >Navigate to the Computer Name tab and select change.
• >Click on Domain under the Member Of option.
• >Type in the domain name which you want the system to join.
• >Click Ok and then do that again.
• >Restart the system.

Your system will become a member of the domain after the computer reboots.

This is a basic question and you can prepare your answer by researching which OS version is used by the company you’re applying in. Be sure to do a little reading on the systems you are familiar with, so you can showcase your skills.

You can use ipconfig /all to display all of the current TCP/IP configuration values, including the IP address, subnet mask, default gateway, and Windows Internet Naming Service (WINS) and DNS configurations.

Active directory authorizes and authenticates all users and computers in a window domain network, ensuring the security of the computer and software. Through active directory various functions can be managed like creating admin users, connecting to printers or external hard drives.

 ‘A’ record is also known as host record, and it has ability to map the IP address by name. It is with this record that DNS can find out the IP address of a name. While, ‘MX record’ also known as mail exchanger record, by the help of ‘MX’ record, location of the mail server is identified.  The record is also found in DNS.

A default gateway is a routing device used to forward all traffic that is not addressed to a destination within the local network or local subnet. Suppose, if you don’t have a default gateway, it is not possible to communicate with the network device/host of different networks. Dial-up internet connections do not require a default gateway though because it is present in the ISP itself.

OU stands for Organizational Unit. It is a container within Active Directory which can hold users, groups and computers.  It is the smallest unit on which administrator can assign group policy settings.

DHCP stands for Dynamic Host Configuration Protocol and it deals with handling of IP addresses for all computers connected to a network. Each computer is allowed to have connection to the network or internet resources after DHCP Server assigns an IP address, dynamically. Dynamic type of IP address can change at any point.

RAS means Remote Access Server.  It allows operating the tool or information that typically resides on a network or IT devices through combination of hardware and software, for example connecting to printer or file.

It is usually used for mobile users who are in the network. It uses telephone line to provide connectivity to its users. It can also connect two or more than two offices in the network.

First I install OS in one machine & default software if required than i will create one Ghost Image of that machine than I will make 49 copies of that Ghost Image DVD & run on all ramain PC, but for this you should be have ghost software & knowledge of ghost( how to make Ghost bootable DVD/CD & how to use that ) this is a 1 solution another is given below –

To take a back-up in the MS outlook, you have to go in control panel. In control panel you have to go under mail option and then open the data file, select personal folder and click on open folder. After that, you have to copy .pst and have to paste it wherever you want the backup.

It is normally found in a 64-bit OS, for example 64bit Win7. This folder is very similar to the system32 folder of the 32-bit OS.

Convert E: /FS: NTFS

Boot.ini files are required in booting Windows operating systems, starting with Windows NT. The boot.ini file also provides flexibility for dual booting multiple operating systems on the same computer.

This command is used to track the path a packet takes to its destination.

Between two or more devices, to check the physical IP connectivity Ping command is used.

POP stands for post office protocol. It is basically used for sending and receiving the mail.

SMTP stands for simple mail transfer protocol. It is used for mail receiving purpose in the network.

First you right click on computer and then click on manage. at that time a window appears. Then go to local users and groups. Then the total users will appear. Then right click on user name what u r enter to in. click set password. Just click ok. Next time on words you will be taken directly to desktop without enter password.

Tell them about your ability to handle different challenges and tasks. Communicate how well versed you are with the systems and in communicating with people and professionals in your area of expertise.

This is one of the important questions. NTLDR is also known as the Network Loader. It helps in loading the operating system. If any system is showing “NTLDR is missing” then you need to copy the NTLDR file from operating system CD.

IPCONFIG command is used to display the IP information of the computer assigned like DNS IP address and gateway IP address.

You can change folder permissions through Group Policy but it can also be done at local level with Administrator Privileges. Under folder properties, select Security tab and then Edit button, after which a pop up will provide and ability to add users and allow for Read, Write. Execute, or Full permissions.

Some common sources are Internet downloads, email attachments, and infected CDs/DVDs. You can use trusted anti-virus software and update it regularly. Make sure it checks every file on the computer. Backup your system periodically in case a major infection occurs, and be aware of all software and programs that run on your computer. Never click a suspicious link or download a suspicious file.

SCSI stands for Small Computer System interface. It is used to provide communication between peripheral devices and computer. Transfer rate is 600 MPs and it requires SCSI adapter card connector and has 50 or 60 pins connector. Now a day, most desktop computers did not use SCSI.

There are a couple of main differences between Switch and a Hub. Hub can be used to connect multiple computers to a single network, while switch can be used to create multiple segments of the same network. Second difference is that with a Hub all computers connected to it receive the data

In order to successfully and safely recover data you would extract the HD from the infected computer. Slave it to a second computer that has updated virus definitions, updated MS patches and drivers. From there you would scan the drive for viruses and once virus is removed you can extract data that needs to be recovered.

1. Reboot your System
2. Remove background running Start-up programs. You can visualize background programs and memory utilization of CPU with the use of Resmon Command on your Command prompt
3. Delete temp files by %temp%, prefetch or by cleaner program
4. Scan your computer with the latest Antivirus
5. Update your device
6. Verify hardware conflicts
7. Check your computer is not overheating.
8. Run registry cleaner
9. Verify, there may be the requirement of ram updation.
10. De-frag your hard drive
11. Update latest windows