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The correct IAM policy to use to allow a group called DatabaseAdmins to create Exadata Database Services is to allow the group to manage the database-family resource type in the tenancy. The database-family resource type includes all the resources related to Oracle Database services, such as DB systems, databases, backups, patches, and Exadata infrastructure1. The syntax for the policy statement is as follows2:

Allow group DatabaseAdmins to manage database-family in tenancy

This policy statement grants the DatabaseAdmins group the permission to perform any action on any resource in the database-family resource type within the tenancy. This includes creating, updating, deleting, and viewing Exadata Database Services and other database resources12.

The other options are not correct IAM policies to use for this purpose. Option A is not a valid syntax, as the tenancy cannot be used as a target for a policy statement. Option B is not a valid syntax, as the databases cannot be used as a principal for a policy statement. Option D is not sufficient, as it only grants the permission to create database-family resources, but not to manage them. Option E is not comprehensive, as it only grants the permission to manage databases, but not other database-family resources, such as Exadata infrastructure12. References:

• Resource Types - Oracle Help Center
• Policy Syntax - Oracle Help Center

You can fast provision a virtual machine (VM) database (DB) system, using Logical Volume Manager (LVM) for storage management, only for Oracle Database versions 12.2 and greater1. This is because LVM is a new feature introduced in Oracle Base Database Service to enable faster provisioning of single-node VM DB systems1. LVM allows you to create logical volumes from physical disks and manage them more easily and efficiently1. LVM also reduces the storage overhead and improves the performance of the VM DB system1. LVM is not available for Oracle Database versions lower than 12.2, or for multi-node VM DB systems, or for bare metal DB systems1. For these cases, you must use Automatic Storage Management (ASM) for storage management, which is the default and recommended option for Oracle Base Database Service1. ASM provides high availability, scalability, and performance for Oracle databases by managing the disk groups and data files1. Therefore, the correct answer is B. References:

• 3: About Oracle Base Database Service - Oracle Help Center

 To perform actions on a NoSQL table, such as creating, updating, deleting, or querying rows, you need to have the appropriate permissions granted by an IAM policy. The permissions are defined by the combination of the verb and the resource type. For example, the NOSQL_TABLE_WRITE permission allows you to create or update a table, and the NOSQL_ROWS_INSERT permission allows you to insert rows into a table1.

The other options are not correct permissions to perform actions on a NoSQL table. The NOSQL_ROWS_READ and NOSQL_ROWS_DELETE permissions only allow you to read or delete rows from a table, but not to insert or update them1. The NOSQL_TABLE_INSPECT and NOSQL_TABLE_UPDATE permissions only allow you to list or modify the properties of a table, but not to create or delete it1. The NOSQL_TABLE_DESTROY and NOSQL_TABLE_ALTER permissions only allow you to drop or alter a table, but not to create or update it1. References:

• Oracle NoSQL Database Cloud Service Policies Reference

To consolidate two databases into a single Oracle Home, you need to perform the following actions1:

• Schedule a downtime window with the team using the 193B database. This is necessary because you need to stop the database service and detach the pluggable databases (PDBs) from the source Oracle Home before moving them to the target Oracle Home2.
• Use the Move Database option from the console to relocate the database to the target Oracle Home. This is the easiest and fastest way to move the database and its PDBs to a different Oracle Home. You can use the Oracle Cloud Infrastructure Console or the API to initiate the move operation, which will automatically copy the required files, update the configuration, and restart the database service in the target Oracle Home3.

Therefore, statements A and D are correct, and statements B and C are incorrect. Copying the sqlnet.ora and spfile from OH193_B to OH193_A and restarting PDBs is not sufficient to move the database to a different Oracle Home, as it does not update the Oracle Inventory, the Oracle Restart configuration, or the database registry4. Creating a new container database under OH193B and migrating the PDBs from 193B to 193A is not necessary, as you can move the existing PDBs directly to the target Oracle Home without creating a new container database5. References: 1: Oracle Base Database Services 2023 Professional, Section 4.2.2: Moving a Database to a Different Oracle Home 2: Base Database Service, Section 4.2.2.1: Prerequisites for Moving a Database to a Different Oracle Home 3: Base Database Service, Section 4.2.2.2: Moving a Database to a Different Oracle Home 4: [Oracle Database Administrator’s Guide], Section 2.4.1: Moving Oracle Database to a New Oracle Home 5: [Oracle Database Administrator’s Guide], Section 19.1.1: Overview of Pluggable Database Migration