Examen Fundamentos De Bases De Datos

Explanation
A base de datos es un conjunto de información relacionada que se encuentra agrupada o estructurada.

Explanation
The statement is true because a database is designed to store and organize data in a way that allows multiple applications to access and manipulate the data simultaneously. By combining the data in a single location, it becomes easier to manage and maintain the integrity of the data. This centralized approach also enables efficient data retrieval and analysis, making it a valuable resource for various applications.

Explanation
The correct answer is "Software" because the analysis of requirements for a database involves tasks related to software, such as identifying the necessary functionalities, determining the data structure, and designing the user interface. This process focuses on understanding and documenting the software requirements to ensure that the final product meets the needs and expectations of the users.

Explanation
The design of a database does not depend on the configuration of the resident hardware. The design of a database is determined by the data requirements, relationships, and constraints, and is independent of the hardware on which the database will be implemented. The hardware configuration may affect the performance and efficiency of the database, but it does not determine the design itself.

Explanation
La arquitectura lógica se define mediante un esquema que representa las definiciones de las relaciones entre las entidades de información.

Explanation
No es una desventaja el hecho de que las bases de datos permitan compartir información, ya que este es uno de los beneficios principales de su uso. Las bases de datos están diseñadas para almacenar y organizar grandes cantidades de información de manera eficiente, y permitir el acceso y la compartición de esta información entre diferentes usuarios y aplicaciones. Esto facilita la colaboración y la toma de decisiones basadas en datos precisos y actualizados. Por lo tanto, la afirmación de que es una desventaja es falsa.

Explanation
The correct answer is "Modelo relacional de datos". In a relational data model, all the data in the database is represented as simple two-dimensional tables called relations. This model organizes data into tables with rows and columns, and establishes relationships between these tables using keys. It provides a structured and efficient way to store and retrieve data, making it widely used in modern database management systems.

Explanation
The statement is true. In a database table, fields represent the different types of data that make up the table. Each field corresponds to a specific attribute or characteristic of the data being stored. These fields define the structure and format of the data within the table and determine the type of information that can be stored in each column. Therefore, the statement is correct in stating that fields are the different types of data that compose a table.

Explanation
The correct answer is "Informe" because an informe is a report or document that allows for the preparation of customized database records for printing. It is a tool that allows users to select specific data from a database and arrange it in a personalized format for printing or sharing. This feature is commonly used in database management systems to generate professional-looking reports with specific data and formatting options.

Explanation
El autonumérico en este tipo de campo numera automáticamente el contenido. Esto significa que cada vez que se ingresa un nuevo registro en el campo, se le asigna automáticamente un número único y consecutivo. Esto es útil para mantener un orden y facilitar la organización de los datos en una base de datos.