Answer:
Find the essay below.
Explanation:
Media refers to the several ways in which information is communicated to people in mass. Some channels through which such pieces of information are conveyed include; the newspapers, internet, television. The advent of media can be traced backed to the 15th century when the first printing press was produced by Johannes Gutenberg. This enabled the typing of books and newspapers which could reach a farther audience. The radio which is an important means of communication was invented early on in the 20th century and the first electronic television was invented in 1927. In recent times, the advent of the internet has made mass communication even much easier.
Prior to the evolution of media, communication to a large group of people was not easy and fast as we have it today. Communities gathered in their numbers to get information from a source. Emissaries were sent to deliver letters across great distances.
Today, a lot of changes have come along with the media which have also affected the values and norms in society. In African society, for example, styles of dressings have changed as trendy styles from the western world that are promoted by the media, have been adopted. Beliefs and ideologies which were mainly superstitious have been enhanced through the media to become more rational. Religion has also been affected as the traditional religions are not widely practiced while Christianity and Islam which find wide coverage in the media have been adopted. All of these give credence to the fact that media has shaped the values and norms in many societies.
Answer:
A. 0
Explanation:
RAID level zero refers to disk arrays with striping at the level of blocks, but without any redundancy.
RAID ZERO (disk striping) : This is the process of dividing a body of data into blocks and also spreading the data blocks across multiple storage devices, such as hard disks or solid-state drives (SSDs), in a redundant array of independent disks (RAID) group.
The answer is the letter a
Answer:
b. Synchronous replication
Explanation:
Replication of data in storage partitions or in a number redundant array of independent disk drives helps to promote redundancy, as implied, and faulty tolerance to reduce loss of data.
There are two categories of replication and they are synchronous and asynchronous replication.
Synchronous replication requires low latency network site to mirror data, while asynchronous replication mirrors data in large metropolitan area in high latency networks.
Answer:
Case-based reasoning.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
Basically, when a database management system (DBMS) receives data update requests from application programs, it simply instructs the operating system installed on a server to provide the requested data or informations.
Case-based reasoning is a problem-solving technique where each problem in a database is stored with a description and keywords that identify it. It is typically based on cognitive science and artificial intelligence.
