Windows Interview Questions
 

How to synchronize manually a client computer to a domain controller?

 Windows 2000 (Win2K) and later computers in a domain should automatically synchronize time with a domain controller. But some times you may get a situation to synchronize manually. To manually synchronize time, open a command-line window, and run

Net stop w32time Run

w32time –update Run

Net start w32time

Manually verify the synchronization between the client computer and a domain controller. Also check the System event log to ensure that the W32Time service has not logged additional error messages.

What are the properties of Taskbar?

We can see two tabs namely General, Advanced


What are the properties of Desktop? The tabs that are there

Background Screen saver Appearance Web Effects Settings 

What are the properties of My computer?

Thee tabs that are there are

General, Network Identification, Hardware, Profile, dvanced

What are the properties of My Network places?

You will get one window, containing 

Make new connection

Local Area connection

Now go to the properties of Local Area Connections

What are the properties of Internet Explorer?

What are the properties of a folder?

What are the properties of a Drive?

What are the folder options?

Double click on my computer èTools è folder options

General

View

File types

Offline files

What are the properties of folder?

What are the properties of file?

What are the print options do u get when you give a print in word?

What are the icons available in Control Panel?

Around 27 icons are available in control panel

Accessibility options, Add/Remove Hard ware, Add/Remove Programs, Administrative tools, Automatic updates.

Key board, mouse, printer, Phone and modem, Scanner and cameras, Power options

System, Display, Network and dial up connections, Internet options, folder options

Date and time, Sounds and multi media, Regional settings, Users and passwords,

Scheduled tasks


What are the icons that don’t get delete option on the Desktop (up to 2000 O. S.)?

My Computer

My Network Places

Recycle Bin

Note: In Windows 2003 you can delete My computer, My network places. You can also get back them.

Right click on Desktop èProperties è Click on Desktop tab è click on customize desktop è select the appropriate check boxes.

Even in 2003 you cannot delete Recycle bin.

Note: You can delete any thing (even Recycle bin) from the desktop by using registry settings in 2000/2003.

What are the properties of Recycle bin?

General

Check box for Display delete confirmation dialogue box

Check box for whether to move a deleted to Recycle bin or directly delete

Global options (applies to all drives)

Individual Partitions (for each partition there exist one partition)

How to configure the DNS?

Open the DNS Console

Then you will find there

*DNS

*Server name

*Forward Lookup Zone

*Reverse Lookup Zone

Note: If you have selected create automatically zones during the setup, then it creates the root zone and domain zone under forward lookup zone.

If no zones are there under forward lookup zone first create root zone then create domain zone.

How to create a zone?

Right click on forward lookup zone ènew zoneè

*Active Directory Integrated

*Primary

*Secondary

Select any one of above.


Note: The option Active Directory Integrated Zone is available on when you have installed the Active Directory; if you have not installed Active Directory the option is disabled.

Note: If you want to select a Secondary zone u should have already a primary zone or Active Directory Integrated zone.

DNSName [____________________]

Give the DNS name

Note: If you r creating a root zone then just type in the name box “.” (only dot)

Then click Next

Finish

After creating the root zone then create another zone with Domain Name

Right click on Forward Lookup zone è New zone èActive Directory Integrated (you can choose any one) èDNS Name [___]èNext èFinish

Creation of zone in Reverse lookup zone

Right Click on Reverse lookup zoneèNew zone èType Network IdèNext èName èFinish

After this

Right Click on zone èselect Create associate Ptr (pointer) record èNext èfinish

What tabs are there on properties of Domain?

General

Start of Authority (SOA)

Named servers

WINS

Zone transfers

What tabs are there on properties of sever?

Interface

Forwarders

Advanced

Root hints

Logging

Monitoring

Where to create the primary, secondary, Active Directory Integrated zones?

If you want to create an Active Directory integrated zone, the server must be Domain Controller.

If you want to create the Primary DNS, you can create on Domain Controller or Member server. But if create on member you could not get 4 options under the domain which are meant for Active directory.

You can create Secondary zone on a Member Server or on a Domain Controller. There is no difference between them.

What are the advantages with Windows 2000 DNS? Or What are the features of Widows 2000 DNS?

Supports SRV (service) records

Supports Dynamic Updates

Supports IXFR (Incremental Zone Transfer)

Supports security

Explain each one of the above?

In windows 2000 Domain you need to have a DNS server to find different services. The SRV records identify these services.

When you enable the Dynamic updates, all the records in the zone are automatically created. As we add a computer to the domain, as we add a Domain controller to the domain the corresponding records are automatically created. I.e., you need to create a record in the DNS zone manually to identify those computers or services.

When an update is made in the Master it has to be replicated to the Secondary. Previous we used to transfer the entire zone (which is called AXFR (entire zone transfer)). But with Windows 2000 domain we transfer on the records that have been modified. This is called IXFR (Incremental Zone Transfer).

We get the security with Active Directory Integrated zone. We can set permission on Active Directory like who can use and who can't use the DNS. And also we have Secure Dynamic updates with Active Directory Integrated zone. By this only specified computers only can dynamically update the records in the zone.

What are the commands do we use for DNS?

Nslookup (and all interactive mode commands)

Ipconfig /fulshdns

Ipconfig /registerdns

Note: A best strategy of using DNS in corporate network is use two DNS servers. One is on internal network and another one is between two firewalls. For more security keep the zone as secondary in the DNS server which is between firewalls.

How we make more available our DNS?

By adding more tuple servers or By windows 2000 clustering.

FAQ’s on DNS

What is the purpose of forward lookup?

It resolves the Host names (Friendly Name) to IP addresses

What is the purpose of Reverse lookup zone?

It resolves the IP addresses to Host names

What is the difference between Primary zone and Secondary zone?

Primary zone has read and write permissions, where as Secondary zone has read only permission.

Note: Secondary zone is used for Backup and Load balancing.

How to check whether DNS is working or not?

Type the command “nslookup” at command prompt

Then it gives the DNS server name and its IP address

What is Dynamic Updates in DNS?

Generally we need to create a host record for newly joined computer (either client or Member server or Domain controller). If you enable dynamic Update option, then DNS it self creates associated host record for newly joined computers.

How to get Dynamic Update option?

Right Click on any zone è properties è on General tab u will get Allow Dynamic Updates?[_Yes/No/Secure Updates]

Note: Put always Dynamic Updates “YES”

Note: If it is Active Directory Integrated zone you will get above three options.

But if it is Primary or Secondary zone you will get only “YES/NO” (You won’t get secure updates)

What is name Resolution?

The process of translating the name into some object or information that the name represents is called name resolution. A telephone book forms a namespace in which the names of telephone subscribers can be resolved to the phone numbers.

What is BIND?

What are the ports numbers used for Kerberos, LDAP etc in DNS?


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