Authentic Oracle Certification Exam 1z0-1093-23 Questions Answers

Exadata Cloud@Customer is a cloud service that delivers the full power of the Exadata platform in your data center. You can create VM clusters on Exadata Cloud@Customer to run Oracle Database instances on virtual machines. You can scale up and down the following resources on your VM cluster1:

• CPU: You can increase or decrease the number of CPU cores allocated to each database node in the VM cluster. You can also enable or disable auto-scaling, which allows the system to automatically adjust the CPU cores based on the workload demand2.
• Memory: You can increase or decrease the amount of memory allocated to each database node in the VM cluster. You can also enable or disable auto-scaling, which allows the system to automatically adjust the memory based on the workload demand2.
• Local Storage: You can increase or decrease the size of the local storage allocated to each database node in the VM cluster. Local storage is used for the operating system, software installation, and temporary files. You can also enable or disable auto-scaling, which allows the system to automatically adjust the local storage based on the workload demand2.
• Exadata Storage: You can increase or decrease the size of the Exadata storage allocated to the VM cluster. Exadata storage is used for the database files, such as data files, control files, redo logs, etc. You can also enable or disable auto-scaling, which allows the system to automatically adjust the Exadata storage based on the workload demand2.

Therefore, statement E is correct, and statements A, B, C, and D are incorrect. Persistent Memory (PMEM), Flash Storage, Network, and Grid Infrastructure Bandwidth are not resources that can be scaled up and down on your VM cluster on Exadata Cloud@Customer1. References: 1: Exadata Cloud@Customer 2: Exadata Cloud@Customer’s distributed cloud database platform

• 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.

The three strategies to migrate Oracle Database to Oracle Cloud Infrastructure (OCI) are:

• Zero Downtime Migration: This is a tool that provides a simplified and automated migration experience, providing zero to negligible downtime for the production system. It supports migrating Oracle Database versions 11.2.0.4 and later, running on any platform, to any OCI Database service, including Exadata, Cloud@Customer, and Autonomous1.
• Migration Workbench: This is a feature of Oracle Enterprise Manager that provides a user interface to perform database migrations using various methods, such as Data Pump, Transportable Tablespaces, or Cross-Platform Transportable PDBs. It supports migrating Oracle Database versions 11.2.0.4 and later, running on any platform, to any OCI Database service, including Exadata, Cloud@Customer, and Autonomous2.
• GoldenGate: This is a software product that enables data replication and integration across heterogeneous databases and platforms. It supports migrating Oracle Database versions 10.2 and later, running on any platform, to any OCI Database service, including Exadata, Cloud@Customer, and Autonomous. It also supports bi-directional replication and zero downtime upgrades3.

B is incorrect, because autonomous migration is not a strategy to migrate Oracle Database to OCI, but a feature of Oracle Autonomous Database that allows you to migrate data from other sources, such as Oracle Database, MySQL, MongoDB, or Amazon S3, to an Autonomous Database instance using Oracle Data Pump or SQL Developer Web4.

C is incorrect, because Real Application Clusters (RAC) is not a strategy to migrate Oracle Database to OCI, but a feature of Oracle Database that provides high availability and scalability by enabling multiple instances to access the same database across a cluster of servers5.

References: 1: Get started with Zero Downtime Migration 2: Migrate Oracle Databases to OCI 3: Oracle GoldenGate 4: Migrate Data to Autonomous Database 5: Oracle Real Application Clusters (RAC)