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Amwoga Khalwale What Is Data Definition Language (DDL)? Data definition or data description language is a syntax used to establish and modify the structure of objects in a database by dealing by dealing with descriptions of the database schema. DDL statements are similar to a computer programming language for defining structures, especially data schemas. DDL statements create, … Read more
What Is Transmission Control Protocol (TCP)? Transmission Control Protocol (TCP) is a connection-oriented protocol that computers use to communicate over the internet. It is one of the main protocols in TCP/IP networks. TCP provides error-checking and guarantees delivery of data and that packets will be delivered in the order they were sent. TCP determines how … Read more
What Are Rational Numbers? Rational numbers are those numbers that can be expressed as a quotient (the result in a regular division equation). Even if you express the resulting number not as a fraction and it repeats infinitely, it can still a rational number. Zero is a rational number. As per the description, the rational … Read more
What is Iterator? An Iterator is an object that enables a programmer to traverse a container, particularly lists. It is used with most of the collection classes like ArrayList, LinkedList, HashSet, TreeMap, TreeSet etc but iterators cannot be used with legacy classes like Vectors, Stack, HashTables etc. Iterator allows to remove elements from the underlying … Read more
What Is File Transfer Protocol (FTP)? The File Transfer Protocol is a standard network protocol used for the transfer of computer files between a client and server on a computer network (over TCP/IP) Connections. FTP lets people and applications exchange and share data within their offices and across the internet. FTP relies on two communication … Read more
What Is An Ideal Gas? An ideal gas is a hypothetical gas whose molecules exhibit no intermolecular attractive forces and undergo elastic collision with each other and with the walls of the container. An ideal gas conforms to a particular idealized relation between pressure, volume and temperature referred to as ideal gas law. The ideal … Read more
What Is A Loosely Coupled System? A loosely coupled system is an approach of interconnecting the components in a system or network so that each of its components has or makes use of little or no knowledge of the definitions of other separate components. The goal of a loose coupling architecture is to reduce the … Read more
What Is Primary Memory? All types of computer memories that are directly accessed by the processor using data bus are referred to as Primary memory. Primary memory can also be referred to as Main memory or Internal memory, however in most cases, primary memory refers to system RAM. RAM, or random access memory, consists of … Read more
What Is Soft Hand-off? Soft handoff refers to the overlapping of repeater coverage zones, so that every cell phone set is always well within range of at least one repeater (also called a base station). In some cases, mobile sets transmit signals to, and receive signals from, more than one repeater at a time. Soft handoff technology … Read more
What Is HashMap? HashMap denoted as HashMap<Key, Value> or HashMap<K, V>. It is the advanced version of HashTable and was introduced as a new class in JDK 1.2. It is a part of Java Collections. It provides the basic implementation of the Map interface of Java. It stores the data in (key, Value) pairs and … Read more