What is necessary to establish a new table in the system?

To establish a new table in a system, it is essential to specify a name and define the requisite columns. This foundational step is critical because the name serves as an identifier for the table, ensuring that users and applications can recognize and access it appropriately. Defining the requisite columns is equally important, as these columns determine the structure of the table, the types of data it can hold, and how this data can be used for storage, retrieval, and analysis. Without this initial setup, the table would lack the fundamental organization necessary for its intended purpose within the database.

The other options, while relevant in different contexts, do not directly pertain to the immediate requirements for creating a new table. Linking to existing data sources may be necessary for data integration but comes into play after the table's basic structure is defined. Creating a unique password for access relates to security protocols rather than the creation process itself. Setting up automatic updates might be useful for maintaining the table's content over time but is not part of the initial establishment of the table. Thus, defining the name and columns is the primary requirement for establishing a new table in the system.