Oracle Database Administration from Zero to Hero - Using OS Authentication (Part 1 of 2)

This video tutorial covers OS authentication in Oracle databases, focusing on different authentication methods, including password and OS-based methods. It explains the workflow for administrator OS authentication and the role of OS groups in the process. The tutorial also discusses configuring OS authentication using the DBCA utility, highlighting best practices for managing administrative privileges.

What is the primary focus of the lecture on OS authentication?

• Creating OS authenticated users

• Understanding database administrator authentication

• Learning about network-based authentication methods

• Exploring third-party authentication services

Which authentication method involves saving username and password pairs inside the database?

• Password authentication

• OS authentication

• Password file authentication

• Network-based authentication

In OS authentication, what is checked to allow a user to connect to the database?

• User's database role

• User's network credentials

• User's membership in a specific group

• User's password

What happens if an administrator tries to connect to the database via an unsecured connection?

• They are denied access

• They can use OS authentication

• They can use any authentication method

• They must use password file authentication

Which group must a user be a member of to connect as SYS DBA using OS authentication on a Linux platform?

• Ora DBA group

• SYS BACKUP group

• DBA group

• Backup DBA group

What is the default group for SYS BACKUP in a Windows platform?

• SYS BACKUP group

• Ora DBA group

• DBA group

• Backup DBA group

How can you identify if a connection attempt is made via the network in SQL Plus?

• By the use of a secure connection

• By the use of a specific port

• By the absence of a password

• By the presence of the @ symbol

What does the DBCA utility allow a DBA to configure?

• Database schemas

• Group names for administrative privileges

• Network settings

• User roles

What is the recommended practice for managing administrative groups in most environments?

• Create a group for each privilege

• Use a single DBA group for all privileges

• Use default group names only

• Create separate groups for each user

In large environments, why is it recommended to create separate groups for each team?

• For security reasons

• To simplify database management

• To comply with licensing requirements

• To reduce administrative overhead