Computers and Technology

Computers and Technology, 31.08.2019 21:00, elielson1497

What is a collection of data that is stored in a computer system

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Mathematics, 17.07.2019 03:10, TheBugDa

It is generally recognized as wise to back up computer data. assume that there is a 2% rate of disk drive failure in a year. a. if all of a computer's data are stored on a single hard disk drive, what is the probability that the drive will fail during a year? b. if all of a computer's data are stored on a hard disk drive with a copy stored in a second hard disk drive, what is the probability that both drives will fail during a year? c. if all of a computer's data is stored on three independent hard disk drives, what is the probability that all three will fail during a year? d. describe the improved reliability that is gained with backup drives.

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Computers and Technology, 12.08.2019 19:30, emily0259

Is a form of crime that targets a computer system to acquire information stored on that computer system, to control the target system without authorization or payment, or to alter the integrity of data or interfere with the availability of the computer or server.

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Computers and Technology, 19.09.2019 16:10, brennarfa

Match the appropriate term with the correct definition. the collection of programs that manages the database structure and controls access to the data stored in the database. answer 1 also known as a column or attribute. answer 2 raw facts, or facts that have not yet been processed to reveal their meaning to the end user. answer 3 the process that yields the description of the database structure and determines the database components. database design is the second phase of the database life cycle. answer 4 a shared, integrated computer structure that houses a collection of related data. a database contains two types of data: end-user data and metadata. the metadata consist of data about data that is, the data characteristics and relationships. answer 5 also known as a row, tuple, or instance. answer 6 a collection of related items stored in a structured format. it consists of rows/records and columns/fields. answer 7 a way to logically group objects such as tables, views, stored procedures etc. think of a schema as a container of objects. answer 8 a unique way to identify each record in a database. each primary key must be unique.

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