What Problem caused by data redundancies? Can data redundancies be completely eliminated when the database approach is used?

Data redundancy is a situation in which there are multiple copies of the same data stored at different places in the database. For example: When a customer came to a shop to buy something, and shop owner notes down the list of item every time and generate a bill for each product. Then this is … Read more

Explanation of TCP/IP Protocol Layer with Diagram

There are four layer in TCP/IP Protocol 1. Application Layer The application layer is the topmost layer of the TCP/IP protocol. It also performs the role of the session layer and presentation layer in TCP/IP model.  This layer allows people to use the network services and establish network-based applications.  The protocols of this layer are … Read more

Explanation of 7 Layer of OSI model in Computer Network

The various layers of the OSI model are explained Below 1. Application layer The application layer is the uppermost layer of the OSI model. The application layer is used by network applications like computer applications like chrome, firefox, outlook, skype etc. This layer involves various protocols like HTTP, SMTP, HTTPs and FTP. That protocol allows … Read more

Write the different uses of computer networks

There are different uses of computer networks, and some uses are mentioned below: Communication The most generally used network is e-mail (electronic mail), a very smart way to communicate one person to another. These days, cellular networks make it workable to assert wireless phone connections even when running over a huge range. Video conferencing permits … Read more