A foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table.

A foreign key is a primary key in another table that establishes a relationship between the two tables.

A functional dependency describes a constraint between two attributes in a relation, indicating that the value of one attribute is determined by the value of another.

Data warehousing improves data quality by consolidating data from various sources and ensuring consistency.

Object-Oriented Databases support complex data types, allowing for the representation of real-world entities more effectively.

A major disadvantage of distributed databases is the higher complexity in management due to the need to coordinate multiple nodes and ensure data consistency.

Normalization can lead to more complex queries due to the need for joins between multiple tables.

Object-Oriented Databases can introduce higher complexity in design due to their advanced features and data structures.

NAT can complicate peer-to-peer applications because these applications often require direct connections between devices, which NAT can hinder.

Concurrent transactions can lead to data inconsistency if not managed properly, as multiple transactions may attempt to read and write the same data simultaneously.

A primary key is a unique identifier for a record in a table, ensuring that no two records can have the same primary key value.

A primary key is a unique identifier for each instance of an entity, ensuring that no two instances are the same.

A primary key is a unique identifier for a record in a database table, ensuring that no two records can have the same key value.

A PLD is a device that can be programmed to perform specific logic functions, allowing for custom logic designs.

A star schema is a type of database design that consists of a central fact table surrounded by dimension tables, facilitating easier data retrieval.

A surrogate key is a key that is created for the purpose of uniquely identifying a record, often an auto-incremented number.

A testbench is a simulation environment used to test and verify the functionality of HDL designs.

A transaction is a sequence of operations that are treated as a single unit of work, ensuring data integrity.

A transaction is a sequence of operations that are executed as a single unit of work.

A transaction is a single unit of work that must be completed in its entirety to maintain data integrity.

A transaction in the context of databases is a sequence of operations treated as a single unit.

A VLAN is a logical grouping of devices that allows them to communicate as if they are on the same physical network, regardless of their actual physical location.

A weak entity is one that cannot exist without a strong entity.

ADO (ActiveX Data Objects) is primarily used for data access in web applications, allowing developers to interact with databases.

Aliasing occurs when a signal is sampled at a rate lower than twice its highest frequency, causing different signals to become indistinguishable.

API stands for Application Programming Interface, which allows different software applications to communicate with each other.

An attribute is a property or characteristic of an entity in an ER model.

In Object-Oriented Data Modeling, an object is an instance of a class that encapsulates data and behavior.

Concurrency control in a database system is managing simultaneous operations without conflicting.

Concurrency control in a DBMS ensures data consistency during simultaneous access by multiple transactions.