Oracle Database Administration from Zero to Hero - Oracle Database Multitenant Architecture (part 1 of 2)

The video tutorial explains Oracle's multi-tenant architecture, introduced in Oracle Database 12c. It covers the differences between Container Databases (CDB) and Pluggable Databases (PDB), the components of multi-tenant architecture, and how to create and manage PDBs. The tutorial also discusses the structure of instances and databases, the role of root and seed containers, and the data dictionary's organization. The multi-tenant architecture allows for efficient database management and is mandatory from Oracle Database 21c onwards.

What is the primary purpose of Oracle's multi-tenancy feature introduced in Oracle Database 12C?

• To simplify database user management

• To improve database performance

• To consolidate multiple databases into a single container

• To enhance data security

In Oracle multi-tenant architecture, what is the role of the CDB root?

• To store application data

• To manage user access

• To hold metadata for PDBs

• To execute SQL queries

How many PDBs can be created in Oracle 12C release two?

• 252

• 4096

• 512

• 1024

What is a key characteristic of PDBs in Oracle multi-tenant architecture?

• They store system metadata

• They are isolated from each other

• They are aware of other PDBs

• They share data with other PDBs

What is the purpose of the seed PDB in Oracle multi-tenant architecture?

• To serve as a template for creating new PDBs

• To store user data

• To execute background processes

• To manage database connections

In Oracle 12.2, what configuration change is allowed for PDBs?

• Sharing data files

• Modifying system metadata

• Creating undo tablespaces

• Creating user tablespaces

Where is the system dictionary data stored in Oracle multi-tenant architecture?

• In each PDB

• In the CDB root

• In a separate database

• In the seed PDB

How does the centralized system dictionary in the root container benefit the upgrade process?

• It enhances data security

• It automatically reflects changes in all PDBs

• It simplifies user management

• It reduces downtime

What type of information do views starting with 'user_' provide in a PDB?

• Information about system metadata

• Information about other PDBs

• Information about objects owned by the current user

• Information about all objects in the CDB

What is the effect of issuing a shutdown command in a PDB?

• It shuts down the entire CDB

• It deletes the PDB

• It closes the PDB only

• It logs out all users