Oracle 1z0-1093-23 Exam With Confidence Using Practice Dumps

 A VM DB system database uses OCI block storage instead of local storage. You specify a storage size when you create the DB system, and you can scale up the storage as required at any time1. Scaling the storage does not affect the availability or performance of the database2. You can use the Oracle Cloud Infrastructure Console or the API to scale the storage of a VM DB system1.

The other options are incorrect because:

• A. After you have provisioned a VM DB system, you cannot increase or decrease block storage. This is false because you can increase or decrease the storage of a VM DB system at any time1.
• C. If you want to increase or decrease the storage, you must change the shape of the VM DB system. This is false because changing the shape of a VM DB system affects the number of CPU cores, not the storage3. You can scale the storage independently of the shape1.
• D. If a VM DB system has different requirements for block storage, you can increase or decrease the storage at any time without impacting the system. This is partially true, but not the best answer. You can increase or decrease the storage at any time, but there is a limitation if you are scaling from a value less than 10,240 GB (10 TB) to a value exceeding 10,240 GB. In that case, you must perform the scaling in two operations2.

References: 1: Scale the DB System 2: About Virtual Machine DB Systems 3: [Change the Shape of a DB System]

To use the MySQL Database Service, you need to have the following three prerequisites1:

• You must create a tenancy and be able to sign in to it. A tenancy is a secure and isolated partition within Oracle Cloud Infrastructure where you can create, organize, and administer your cloud resources2. You need to have a valid Oracle Cloud account and credentials to access your tenancy and use the MySQL Database Service.
• You must create a compartment to store your resources. A compartment is a logical container that you can use to organize and isolate your cloud resources within a tenancy3. You can create one or more compartments to store your MySQL Database Service resources, such as MySQL DB systems, backups, and connections. You can also control the access and permissions for each compartment using policies4.
• You or your group must be granted the policies described in Mandatory Policies. Policies are documents that specify who can access which resources, and how5. To use the MySQL Database Service, you need to have the necessary permissions to create and manage the MySQL Database Service resources, as well as the related Oracle Cloud Infrastructure resources, such as Virtual Cloud Networks, subnets, and security lists. The documentation provides a list of mandatory policies that you or your group must be granted to use the MySQL Database Service.

D is incorrect, because you do not have to download the latest MySQL version from The MySQL Database Service is a fully managed service that provides you with the MySQL version that you select when creating a MySQL DB system. You do not have to download or install any MySQL software on Oracle Cloud Infrastructure.

E is incorrect, because you do not have to install the downloaded MySQL version onto Oracle Cloud Infrastructure. As mentioned above, the MySQL Database Service is a fully managed service that handles the installation and configuration of the MySQL software for you.

References: 1: Getting Started With MySQL Database Service 2: About Your Tenancy 3: About Compartments 4: Managing Compartments 5: About Policies : Mandatory Policies : Creating a MySQL DB System

• Maintenance Windows and MySQL: Maintenance windows in MySQL database systems (including those in cloud environments) are primarily dedicated to patching and updating the core database software and the operating system upon which it runs. This ensures security fixes, bug resolutions, and potential performance improvements.expand_more
• Excluded Activities:

References:

• Cloud SQL for MySQL documentation on maintenance: (Find references for your specific MySQL environment - Google Cloud, AWS, Azure, etc.). Example: https://cloud.google.com/sql/docs/mysql/maintenance
• General MySQL maintenance: Search for resources discussing routine maintenance tasks within MySQL. These will often distinguish between system-level updates (OS, DB software) and database-level optimizations.