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• SRV RECORDS point a client to the servers which are hosting a SERVICE. For example Active Directory Service.
• MX record points to the client to servers hosting mail service. MX stands for Mail Exchanger.
• CNAME record is a ALIAS record for a name that already exists. Suppose there were two servers and both of them consolidated into one, in that case one name becomes useless. But any application DEPENDENT on unused name has to work, in that case we create an alias record which is the unused name pointing to the name in use. Hence the application keeps functioning. 

%SYSTEMROOT%WINDOWS System32 DNS.

%SYSTEMROOT%Windows System32 DNS.

It is WAY to provide the desirable predefined ENVIRONMENT to all USERS in an Active Directory environment and it is centrally MANAGEABLE.

It is way to provide the desirable predefined environment to all users in an Active Directory environment and it is centrally manageable.

A router DROPS the DHCP packet as its a broadcast packet. When we enable the relay AGENT option on the router it then lets the DHCP Broadcast PACKETS pass through. HENCE the relay agent helps in sending it over to the DESTINED subnet.

A router drops the DHCP packet as its a broadcast packet. When we enable the relay agent option on the router it then lets the DHCP Broadcast packets pass through. Hence the relay agent helps in sending it over to the destined subnet.

TWO DIFFERENT SCOPES are CREATED for two SUBNETS.

Two different scopes are created for two subnets.

To SEGMENT or restrict/localize ONE type of TRAFFIC to one segment or SUBNET of the network.

To segment or restrict/localize one type of traffic to one segment or subnet of the network.

We can assign a particular IP ADDRESS to the MAC address of a MACHINE USING IP reservation in DHCP.

We can assign a particular IP address to the MAC address of a machine using IP reservation in DHCP.

We can use GPMC (Group Policy MANAGEMENT CONSOLE), RIGHT CLICK on the GPO and select backup and take backup on destination folder

We can use GPMC (Group Policy Management Console), right click on the GPO and select backup and take backup on destination folder

USER MODE and APPLICATION mode.

User mode and application mode.

Kerberos PROTOCOL is an authentication protocol. When we LOGIN in an ACTIVE Directory ENVIRONMENT its the protocol that is used to authenticate us.

Kerberos protocol is an authentication protocol. When we login in an Active Directory environment its the protocol that is used to authenticate us.

We are USING KERBEROS V 5.0.

We are using Kerberos V 5.0.

MAIN RAID LEVELS are RAID-0, RAID-1, RAID-5 and RAID-10.

Main RAID levels are RAID-0, RAID-1, RAID-5 and RAID-10.

RAID-1 for O.S - mirroring.

RAID-5 for DATA PARTITION- STRIPE SET with parity.

RAID-1 for O.S - mirroring.

RAID-5 for DATA partition- Stripe set with parity.

RAID-1: In RAID-1 two hard disk are there and the data on ONE is MIRRORED to another. So even if one FAILS other one is there with the same data for service continuity. 

RAID-5: We can use minimum three hard disk and maximum depend UPON RAID controller card, Data written on disk in stripes with distributed parity set.

RAID-1: In RAID-1 two hard disk are there and the data on one is mirrored to another. So even if one fails other one is there with the same data for service continuity. 

RAID-5: We can use minimum three hard disk and maximum depend upon RAID controller card, Data written on disk in stripes with distributed parity set.

DISK striping is the TECHNIQUE of spreading data over multiple disks. The data to be stored is divided into blocks and spread across several partitions on various HARD disk. Disk striping is used with or WITHOUT equivalence. Disk striping helps in improving the performance of the disk.

Disk striping is the technique of spreading data over multiple disks. The data to be stored is divided into blocks and spread across several partitions on various hard disk. Disk striping is used with or without equivalence. Disk striping helps in improving the performance of the disk.

1. Normal or FULL Backup
2. DIFFERENTIAL Backup
3. INCREMENTAL Backup
4. Copy backup
5. Daily Backup

The bit which has check MARK on the folder whose BACKUP has been DONE USING normal backup method.

The bit which has check mark on the folder whose backup has been done using normal backup method.

ADDRESS RECORDS, HOST Records, MX Records, and CNAME records.

Address records, Host Records, MX Records, and CNAME records.

1. Primary DNS zone
2. SECONDARY DNS zone
3. Active DIRECTORY INTEGRATED zone
4. STUB zone

Domain Naming SYSTEM:

Used to resolve the host NAME (FQDN) name to IP ADDRESS and Vice Versa

Domain Naming System:

Used to resolve the host name (FQDN) name to IP Address and Vice Versa

INTERSITE REPLICATION is for replication with in the SITE and Intra-site replication is for the replication between the SITES.

Intersite replication is for replication with in the site and Intra-site replication is for the replication between the sites.

KCC (KNOWLEDGE Consistency Checker) is the ALGORITHM and the two protocols used are RPC over IP and SMTP over IP. They replicate in EVERY 15 min.

KCC (Knowledge Consistency Checker) is the algorithm and the two protocols used are RPC over IP and SMTP over IP. They replicate in every 15 min.

RPC and SMTP. PREDOMINANTLY RPC is used. SMTP is not used as its not recommended for replication of Domain Partition. 

Replication CONFLICT is MANAGED using a method described here. Read the full article several times and you would be happy that you got to KNOW something very important. 

RPC and SMTP. Predominantly RPC is used. SMTP is not used as its not recommended for replication of Domain Partition. 

Replication conflict is managed using a method described here. Read the full article several times and you would be happy that you got to know something very important. 

Inter-site REPLICATION, Intra-site replication.

Inter-site replication, Intra-site replication.

Distributed File System, It is used for the fault tolerance because it MAKES the duplicate COPY of every DFS root. Not only that the domain login process as well uses DFS to find out the NEAREST DC to login.

Distributed File System, It is used for the fault tolerance because it makes the duplicate copy of every DFS root. Not only that the domain login process as well uses DFS to find out the nearest DC to login.

File REPLICATION Services.

EXAMPLE: Replication of SYSVOL folder.

File Replication Services.

Example: Replication of SYSVOL folder.

TCP is a CONNECTION ORIENTED PROTOCOL while UDP is not a connection oriented protocol.

TCP is a connection oriented protocol while UDP is not a connection oriented protocol.

ONE LAYER THREE (NETWORK layer)

One layer Three (Network layer)

logged-on USER should be a member of the Enterprise Administrators group to TRANSFER Schema master or Domain naming master ROLES, or a member of the Domain Administrators group of the domain where the PDC emulator, RID master and the Infrastructure master roles are being TRANSFERRED.

logged-on user should be a member of the Enterprise Administrators group to transfer Schema master or Domain naming master roles, or a member of the Domain Administrators group of the domain where the PDC emulator, RID master and the Infrastructure master roles are being transferred.

dcpromo /forceremoval

dcpromo /forceremoval

1. Click Start, click Run, type ntdsutil in the Open BOX, and then click OK
2. Type roles, and then press ENTER.
3. Type connections, and then press ENTER.
4. Type connect to server SERVERNAME, and then press ENTER, where servername is the name of the domain controller that you want to assign the FSMO role to.
5. At the server connections prompt, type q, and then press ENTER.
6. Type seize role, where role is the role that you want to seize. For EXAMPLE,
7. To seize the RID master role, type seize schema master
8. To seize the RID master role, type seize domain naming master
9. To seize the RID master role, type seize rid master
10. To seize the RID master role, type seize pdc
11. To seize the RID master role, type seize INFRASTRUCTURE master.
12. At the fsmo maintenance prompt, type q, and then press ENTER to gain access to the ntdsutil prompt.

RID Master provides the RID (RELATIVE Identifier) pool to Domain controller of the Domain. When an object is create in a domain, a Unique SID (SECURITY ID) is ASSIGNED to it which consisting of a RID (Unique ID) and a SID (COMMON ID for all Object), A RID pool contain 500 RIDs.

RID Master provides the RID (Relative Identifier) pool to Domain controller of the Domain. When an object is create in a domain, a Unique SID (Security ID) is assigned to it which consisting of a RID (Unique ID) and a SID (Common ID for all Object), A RID pool contain 500 RIDs.

1. DOMAIN Naming Master (Forest WIDE ROLE)
2. Schema Master (Forest wide role)
3. PDC Emulator (Domain wide role)
4. RID Master (Domain wide role)
5. Infrastructure Master (Domain wide role)

Go to Active directory SITE and services and expand till your desire SERVER’s NTDS settings and then right click; PROPERTY and check mark the Global catalog check BOX.

Go to Active directory site and services and expand till your desire server’s NTDS settings and then right click; property and check mark the Global catalog check box.

We can not transfer the GLOBAL CATALOG; we can only REMOVE the global catalog from ONE server and ENABLE other server as a global catalog.

We can not transfer the global catalog; we can only remove the global catalog from one server and enable other server as a global catalog.

Check NTDS and SYSVOL shared FOLDER at %systemroot%WINDOWS.

Check NTDS and SYSVOL shared folder at %systemroot%windows.