A data warehouse can be built using three approaches −A top-down approachA bottom-up approachA combination of both approachesThe top-down approach starts with the complete design and planning. It is helpful in cases where the technology is sophisticated and familiar, and where the business issues that must be solved are clear ... Read More

Data Warehousing is a technique that is mainly used to collect and manage data from various sources to give the business a meaningful business insight. A data warehouse is specifically designed to support management decisions.In simple terms, a data warehouse defines a database that is maintained independently from an organization’s ... Read More

The major components of a data warehouse are as follows −Data Sources − Data sources define an electronic repository of records that includes data of interest for administration use or analytics. The mainframe of databases (e.g. IBM DB2, ISAM, Adabas, Teradata, etc.), client-server databases (e.g. Teradata, IBM DB2, Oracle database, ... Read More

Data Warehousing is a technique that is mainly used to collect and manage data from various sources to give the business a meaningful business insight. A data warehouse is specifically designed to support management decisions.In simple terms, a data warehouse refers to a database that is maintained separately from an ... Read More

Data Warehousing is a technique that is mainly used to collect and manage data from various sources to give the business a meaningful business insight. A data warehouse is specifically designed to support management decisions.In simple terms, a data warehouse defines a database that is maintained independently from an organization’s ... Read More

Data integration is the procedure of merging data from several disparate sources. While performing data integration, it must work on data redundancy, inconsistency, duplicity, etc. In data mining, data integration is a record preprocessing method that includes merging data from a couple of the heterogeneous data sources into coherent data ... Read More

Let us understand what a hardware firewall is.Hardware FirewallHardware firewalls are frequently built within the base of broadband routers and are an essential part of a network setup, particularly on a broadband connection. A hardware firewall can be very adequate with minimal or no configuration and can guard each device ... Read More

Let us begin by learning about VPN.VPNVPN stands for the virtual private network. It is an encrypted connection over the web from a device to a network. The encrypted connection supports that sensitive information is safely communicated. It avoids an unauthorized person from eavesdropping on the traffic and enables the ... Read More

Anycast is a method for routing network traffic where the sender distributes packets to a destination that is adjacent to it in terms of network topology. The features of Anycasting is that the networking approach can allow for messages to be shared to a team of receivers that all have ... Read More

Let us begin by understanding what WEP is.WEPWEP stands for Wired Equivalent Privacy. It is the generally used Wi-Fi security protocol in the world. WEP was produced as a Wi-Fi security requirement in 1999, September.The first form of WEP was not especially strong, even for the time they were launched, ... Read More