Important Oracle 1Z0-1195-25 Exam Questions

Answer: B

Explanation:

The Exadata X8M leverages 'Remote Direct Memory Access' (RDMA) to access 'Persistent Memory' (B). RDMA allows direct memory-to-memory data transfer between systems without CPU involvement, enhancing performance. In Exadata X8M, RDMA accesses persistent memory (PMEM) to accelerate database operations by reducing latency and improving I/O throughput. 'Compute Instances' (A) and 'Database Servers' (D) are broader entities, not the specific resource RDMA targets, while 'Storage Disks' (C) are traditional storage, not memory. Oracle's Exadata documentation highlights RDMA's use with persistent memory in X8M systems.

Answer: D

Explanation:

'Exadata' integrates software and hardware and is available both 'In the Oracle Cloud and customer site' (D). It is offered as Exadata Cloud Service (public cloud) and Exadata Cloud@Customer (on-premises), providing flexibility for hybrid deployments. 'Only in a hybrid cloud' (A) is too restrictive, 'Only in public cloud environments' (B) ignores Cloud@Customer, and 'Only at the customer site' (C) excludes the cloud option. Oracle's documentation confirms Exadata's availability in both OCI and on-premises configurations.

Answer: B, C

Explanation:

The 'Autonomous Database' offers self-service tools like 'Oracle Machine Learning' (B), enabling users to build ML models directly in the database, and 'Low-Code App Dev, APEX' (C), allowing rapid application development via Oracle APEX. 'Business Objects' (A) is a third-party BI tool, not native to ADB, and 'Encryption only in Object Storage' (D) is a feature, not a tool, and inaccurate (encryption is broader). Oracle's documentation highlights OML and APEX as key self-service capabilities.

Answer: A, C

Explanation:

Two important reasons to upgrade and patch are 'Support Compliance' (A), ensuring the database remains under Oracle's support policy with access to updates, and 'Security' (C), applying patches to mitigate vulnerabilities and protect data. 'Validation of application' (B) is a byproduct, not a primary reason, and 'Restructure the database' (D) is unrelated to patching. Oracle's maintenance guides emphasize compliance and security as key drivers.

Answer: B

Explanation:

The final release supporting the 'non-CDB (non-Container Database)' architecture is 'Oracle Database 19c' (B). Oracle deprecated the non-CDB architecture starting with 20c (never fully released) and mandated the multitenant architecture (CDB with PDBs) from 21c onward. 19c, as a long-term support release, was the last to support non-CDB databases, with Oracle recommending migration to multitenant in subsequent versions like 23c. Oracle's documentation confirms 19c as the end of non-CDB support.