Cassandra is a fully distributed, masterless database, offering superior scalability and fault tolerance to traditional single master databases. Compared with other popular distributed databases like Riak, HBase, and Voldemort, Cassandra offers a uniquely robust and expressive interface for modeling and querying data. What follows is an overview...

ITIL Change Evaluation Process Change Evaluation is one of the main processes under the Service Transition Module of the ITIL best practice framework. We already learned about the Change Management process. We may think of this process as an extension of Change Management. This ITIL Change Evaluation Process comes into the picture, whenever...

COBIT? COBIT is ISACA's IT management system to help organizations create, coordinate and execute knowledge management and management strategies.First released in 1996 and developed to help financial audit societies better manage the growth of IT environments, COBIT (Control Objectives for Information and Related Technologies) was first...

Apache Spark tutorial provides basic and advanced concepts of Spark. Our Spark tutorial is designed for beginners and professionals.Spark is a unified analytics engine for large-scale data processing including built-in modules for SQL, streaming, machine learning and graph processing.Our Spark tutorial includes all topics of Apache Spark with...

Most books and guides on program management written in the last 10 years have suggested program ‘phases’, which are simply transpositions of the project linear perspective. This view can jeopardise the effectiveness of program management and its capability to deliver strategies. Although it is now agreed that the objective of programs is to...

In Apache Cassandra data modelling play a vital role to manage huge amount of data with correct methodology. Methodology is one important aspect in Apache Cassandra. Data modelling describes the strategy in Apache Cassandra. Conceptual Data Model: Conceptual model is an abstract view of your domain. It is Technology independent. Conceptual...

What Is Big Data? Big Data is a term used for a collection of data sets that are large and complex, which is difficult to store and process using available database management tools or traditional data processing applications. The challenge includes capturing, curating, storing, searching, sharing, transferring, analyzing and visualization of...

As the name implies AAD is an Active Directory that runs in Azure. This means that you have users and groups in the directory, (and to a limited extent computers), and you can authenticate users against it to provide authentication and authorization for both web-based and native apps. It is managed through an administrative portal rather than the...

WHAT IS GIT FOR WINDOWS ? First of all, there are many GUI (graphical user interface) so-called Git clients for Windows — take a look at this list here. However, in this tutorial we will focus on the simplest, free and very easy to use Git for Windows found here:Naturally, this entire project is hosted on GitHub, a “cloud” version of the...

What Is Clustering? Clustering is the most popular technique in unsupervised learning where data is grouped based on the similarity of the data-points. Clustering has many real-life applications where it can be used in a variety of situations.The basic principle behind cluster is the assignment of a given set of observations into subgroups or...