Desktop Support Flashcards
Interview Q&A
What Is DHCP And What It Is Used For?
DHCP stands for dynamic host configuration protocol. It is used to allocate IP addresses to a large number of the computer system in a network. It helps in managing the large number of IP’s very easily.
What Is DNS?
DNS mean Domain Naming Service and it is used for resolving IP addresses to name and names to IP address. DNS is like a translator for computers, computers understand the number and not the alphabet. For example, if we type like hotmail.com, the computer don’t understand this so they use DNS which converts (hotmail.com) into (numbers) and then executes the command.
Explain About RAS Server?
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.
Explain About VPN Server?
VPN means Virtual Private Network. It is a private communications network often used by companies or organizations to communicate confidentially over a public network. This is used by the mobile users in the network.
What Is The Difference Between RAS And VPN Server?
RAS is truly a local area connection between two connections whereas, VPN is a local connection spread over large area.
A User In A Corporate Network Contacts Service Desk Saying He/she Has Lost Network Connectivity: How Will You Troubleshoot The Issue? What Are The Steps To Followed?
- Check the cable if it is connected to the workstation/ notebook and if it is receiving signal from the switch.
- Check using the command “ipconfig” to confirm the IP range that the user’s machine is in if it is using APIPA address, This will mean the machine can not reach the DHCP server and if the user has an assigned static address try pinging the gateway, DNS,Proxy Server or one of the Domain Controllers.
- If all pinged replies successfully check to see the proxy settings through Lan Settings on your Browser.
- Depending on the structure of your corporate network you might need to check the mac address (of the user’s workstation) on the cisco switches (if used) to find out which VLan is it in and move it to the correct VLan.
What Do You Mean By Clustering? What Are The Benefits?
When one or more computers work together as a single system by sharing their resources is known as clustering.
The benefits of clustering are that it reduces the load on one single system by sharing the load also it is used for redundancy of the services.
What Is A Group?
Group is a collection of the user account. It provides the simplified administration in the network.
Explain Group Policy?
Group policy provides the stream line access to all the users in the network, it can be used to define the users security and networking policies. By group policy you can keep control over certain function like not allowing the users to shut down the system or using the control panel or running the command. Group policy is applicable on active directory container like OU, site and Domain.
What Is The Difference Between Permission, Rights And Policy?
“Policy” is assigned on active directory, like site, domain and OU. The “Rights” are assign to users and groups, whereas, the “Permission” is assigned for network resources like file, folders and printers.
What Is Dc And ADC Stands For?
DC stands for domain controller and ADC stands for additional domain controller.
ADC is a backup of domain controller. Domain controller is a server that checks the security measures like user id, password.
How You Can Take Backup Of Emails In Ms Outlook?
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.
What Is Fixboot?
Fixboot write a new partition boot sector on to the system partition.
What Is SCSI?
SCSI stands for Small Computer System Interface. It is a standard electronic interface that allows personal computers to communicate with peripheral hardware such as disk drives, tape drives, printers, CD-ROM drives. In “SCSI” the rate of data transmission is fast.
What Is The Difference Between Incremental Backup And Differential Backup?
Differential backups will select only files that are changed since the last backup.
Incremental backups will select only the data that has changed since the last backup.
Example, On Sunday you do a backup of a 5 text file each of 40 MB. Total backup size will be 200MB
On Monday you change 2 lines in just ONE of the text file.
Under Differential backup, only the changed text file will be backed up. Total backup size will be 40MB
Under Incremental backup, only the data corresponding to the 2 lines will be backed up. Total backup size will be just in bytes.
