Important Trivia Quiz On Database Basics

Search engines like Google are computer-based databases as they store and organize vast amounts of information from the internet. These databases are constantly updated and indexed to provide users with relevant search results. Users can access the information stored in these databases by entering search queries, and the search engine retrieves and displays the most relevant results based on its algorithms. Therefore, it is correct to say that search engines like Google are examples of computer-based databases.

The Yellow Pages is indeed an example of a paper-based database. It is a directory that contains information about businesses, organized alphabetically by category and location. The information is printed on paper and distributed to households and businesses. Users can use the Yellow Pages to find contact details and addresses of various businesses in their area. Therefore, the statement is true.

A disadvantage of a computerized database is that people often need training in how to use the software. This implies that the software used for the computerized database may not be user-friendly or intuitive, requiring individuals to undergo training in order to effectively navigate and utilize the database. This can be time-consuming and costly for organizations, as they need to allocate resources for training sessions and ensure that employees are proficient in using the software.

The correct answer is "Primary" or "primary". In a database, the primary key is a unique identifier for each record in a table. It ensures that there are no duplicate records and allows for efficient retrieval and manipulation of data. The primary key is typically a column or a combination of columns that have unique values for each record. It is essential for maintaining data integrity and establishing relationships between tables.

A record is a collection of related data that represents all the information about one person or one thing. It contains all the necessary details and attributes associated with that particular entity. In a database, a record is a row in a table that holds specific information about a single entity. It is used to store and organize data in a structured manner, making it easier to retrieve and manipulate the information. Therefore, a record is the correct answer as it encompasses all the information about one person or one thing.

A table is a database object that stores all of the data in the database. It consists of rows and columns, where each row represents a record and each column represents a field. Therefore, a table is the correct answer as it is the structure that holds and organizes all the data in a database.

A field is a component within a database that stores a single piece of data about a person or thing. It is used to represent a specific attribute or characteristic of the entity being recorded. In a database table, each row represents a record, and each column represents a field. Therefore, the correct answer is "Field" as it is the term used to describe the individual data elements within a record.

The field 'Title' will contain options such as 'Mr', 'Mrs', 'Miss', 'Ms', and 'Other'. To accommodate all these options, the field length should be set to 5. This will ensure that the field can store the longest option, which is 'Other', and also leave enough space for any potential future additions to the list of options.

The given question asks for a datatype that is NOT included in the options provided. The options include Autonumber, Currency, Telephone Number, and Text. Autonumber, Currency, and Text are commonly used datatypes in databases. However, Telephone Number is not a standard datatype in most database systems. While a telephone number can be stored as a text string, it is not a specific datatype like the others mentioned. Therefore, the correct answer is Telephone Number.

A relational database is a good idea because it cuts data duplication. By organizing data into tables and establishing relationships between them, a relational database eliminates the need for storing redundant information. This helps in reducing data redundancy and improving data consistency, accuracy, and efficiency. It also saves storage space and makes data management and retrieval easier.

The statement is false because a number datatype is not the most suitable for storing a telephone number. Telephone numbers often include special characters such as parentheses, hyphens, and plus signs, which cannot be represented in a number datatype. Additionally, telephone numbers can have varying lengths and may include leading zeros, which can be lost if stored as a number datatype. Therefore, a string datatype is more appropriate for storing telephone numbers.

The most suitable data type for storing 'Postcode' would be Text. This is because a postcode is typically a combination of letters and numbers, which can vary in length. Text data types allow for storing alphanumeric characters, making it the appropriate choice for storing postcodes.

A database with only one table is called a flat-file database. In a flat-file database, all the data is stored in a single table, without any relationships or links to other tables. This type of database is simple and easy to understand, but it lacks the ability to efficiently organize and retrieve complex data.

Verification is the process of checking the data that has been entered against the original source data. It ensures that the entered data is accurate and matches the original information. By verifying the data, any errors or discrepancies can be identified and corrected, ensuring the reliability and integrity of the information.

Validation can help identify errors or inconsistencies in data, but it cannot guarantee that the data is always correct. Validation checks can only verify if the data meets certain criteria or rules, but they cannot ensure the accuracy or truthfulness of the data itself. Therefore, the statement "Validation can make sure that your data is correct" is false.