Oracle Updated 1z0-1105-23 Exam Questions and Answers by andreea

OCI Data Flow is the Lakehouse service that you should use for serverless Spark processing. According to the Oracle documentation, “Oracle Cloud Infrastructure Data Flow is a fully managed big data service that lets you run Apache Spark applications with no infrastructure to deploy or manage. Data Flow lets you create, run, and manage Apache Spark applications with minimal coding and no infrastructure provisioning or management.”

Changing COMPATIBLE after upgrades is one of the scenarios when you should change COMPATIBLE. According to the Oracle blog post7, “COMPATIBLE needs to be adjusted only once after you completed your last database upgrade.” The blog post also explains that changing COMPATIBLE requires a restart of the database and that it should not be changed before upgrades or patching or after downgrades.

The goal of scale out high availability can be achieved by provisioning nodes with Real Application Clusters (RAC). According to the Oracle documentation6, “Oracle Real Application Clusters (RAC) enables you to scale out your database by adding nodes as needed without changing your application code. RAC also provides high availability by automatically recovering from node failures.” RAC allows multiple instances of Oracle Database to run on different servers while accessing a shared set of data files.

Connect (1Gbps public peering) is not an Always Free resource available for provisioning in your tenancy. According to the Oracle documentation5, “All Oracle Cloud Infrastructure accounts (whether free or paid) have a set of resources that are free of charge for the life of the account.” The list of Always Free resources includes Infrastructure Certificates, Compute VMs, Block Volumes Storage, Object Storage, Resource Manager, OCI Bastions, Databases, NoSQL Database, Observability and Management tools, Flexible Load Balancer, Outbound Data Transfer, Virtual Cloud Networks (VCN), VCN Flow Logs, and Site-to-Site VPN. Connect (1Gbps public peering) is not among these resources.