23713054
Descrição
Quiz por christina Littlewood, atualizado more than 1 year ago
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Criado por christina Littlewood
quase 4 anos atrás
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Questão 1
Questão
Which of the following is NOT true of databases?
Responda
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You can store large amounts of data.
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You have to use a computer.
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You can search the data.
Questão 2
Questão
Which of the following is a piece of software used to create databases?
Responda
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Google Chrome
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Microsoft Office PowerPoint
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Microsoft Office Access
Questão 3
Questão
What term describes a personalised letter which can be sent to customers of a supermarket?
Responda
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Report
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Mail merge
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Macro
Questão 4
Questão
Which of the following is an advantage to paper-based databases?
Responda
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It is easy to add or amend records.
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You do not need any training on how to use the database.
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Data can be sorted and re-sorted easily.
Questão 5
Questão
Thinking of data, information and knowledge - which of the following is an example of information?
Responda
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The average men's shoe size is nine.
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9
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If you are to open a shoe shop, you must stock plenty of size nine shoes.
Questão 6
Questão
Which of the following holds a single piece of data?
Responda
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Table
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Record
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Field
Questão 7
Questão
Which field would be inappropriate in a database of countries?
Responda
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Continent
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Population
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First Name
Questão 8
Questão
What is the correct definition of primary key?
Responda
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The first field in a table.
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A field that contains unique data in each record.
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The field which we will use to search with.
Questão 9
Questão
What database feature checks to see if data meets certain rules when entered to a table?
Responda
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Table
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Query
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Validation
Questão 10
Questão
Which validation rule would you use to limit what a user can enter to only a few options, e.g. male or female?
Responda
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List check
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Presence check
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Range check
Questão 11
Questão
What is a database record?
Responda
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All of the records in a field
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All the data about one item in the database.
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the colour of a persons hair
Questão 12
Questão
What is data redundancy?
Responda
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The unnecessary repetition of data.
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The removal of data.
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inputting the wrong data.
Questão 13
Questão
What is data validation?
Responda
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Checking if the data is from a reliable source.
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The process of checking data as it is entered into the system to ensure it is entered correctly.
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Checking if the data interesting.
Questão 14
Questão
What is data verification?
Responda
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Updating records.
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The checking that the data is true or correct (usually by human checking).
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Checking to see if the data has already on the system.
Questão 15
Questão
What is a relational database?
Responda
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A relationship database stores data in tables. Each table contains data about one entity. Each table is called a relation. Tables are linked together using keys.
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A database that stores information about relatives.
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A database about a specific subject
Questão 16
Questão
How are tables linked together in a database?
Responda
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The tables are typed in to the database and added together to make one table.
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A database will automatically use all the tables available.
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Tables are linked together by using keys. The primary key in one table is linked to another table as a foreign key.
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