The sliding window protocol is a flow control protocol for noisy channels. Being a flow control protocol, it prevents the receiver from overwhelming receiver from the data. What is the purpose of Flow Control? The rate at which the sender sends the data and at which the receiver receives the data may vary. However, the receiver maintains a data buffer as it has to process … [Read more...] about Sliding Window Protocol
Schema Change in DBMS
Schema change statements are used to make the alteration to the existing database. The schema change statements are defined using the structured query language i.e. SQL. It must be taken care that whatever changes you made to the schema of an existing database must not affect the existing database. In the section ahead, we will discuss more schema change and schema change … [Read more...] about Schema Change in DBMS
Entity Relationship Model
The entity relationship model is a diagrammatic representation of a database that helps the user to identify the entities present in the database and the relationship among the entities. The entity-relationship model is popularly used to design databases. The entity-relationship model plays with the three major components that are entity, attributes and relations. In this … [Read more...] about Entity Relationship Model
Transport Layer Protocols
Transport Layer protocols control and manage the delivery of a message from a process running on the source host to a corresponding process running on the destination host. Well, transport layer protocols can be connectionless where each segment of a message is considered as an independent entity. Or a transport layer protocol can also be connection-oriented where first a … [Read more...] about Transport Layer Protocols
Packet Switching
Packet switching is one of the switching techniques that can be used to route the data from source to destination in a switched network. A switched network uses switches to connect multiple devices to form a large network. In a switched network, there can be numerous paths from source to destination. The switching technique identifies the best path among these multiple … [Read more...] about Packet Switching