Use Real 1Z0-931-25 Dumps - Oracle Correct Answers updated on 2025
Oracle Autonomous Database 1Z0-931-25 Exam Practice Dumps
Oracle 1Z0-931-25 Exam Syllabus Topics:
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NEW QUESTION # 52
You have a requirement to create an Autonomous Transaction Processing database that can support at least 200 concurrent statements per OCPU as well as parallelism. Which service will you need to connect to?
- A. TP
- B. MEDIUM
- C. LOW
- D. TPURGENT
Answer: D
Explanation:
Full Detailed In-Depth Explanation:
Autonomous Transaction Processing (ATP) offers predefined service levels with varying concurrency and parallelism capabilities:
MEDIUM: Supports up to 50 concurrent statements per OCPU, with no parallelism by default. Unsuitable for the requirement.
TPURGENT: Supports up to 200 concurrent statements per OCPU and enables manual parallelism. This meets both requirements (concurrency ≥ 200 and parallelism), making it the correct choice.
LOW: Supports only 25 concurrent statements per OCPU, with no parallelism. Insufficient for the requirement.
TP: Supports 125 concurrent statements per OCPU, with no parallelism by default. Falls short of the 200 concurrency threshold.
TPURGENT is designed for high-concurrency, time-sensitive workloads, providing the necessary resources and flexibility for parallel query execution, aligning perfectly with the specified needs.
NEW QUESTION # 53
Which is NOT needed to manage Oracle Autonomous Database with REST APIs?
- A. Database ADMIN password
- B. Tenancy's OCID
- C. Fingerprint of the public key
- D. User's OCID
Answer: A
Explanation:
Managing Autonomous Database via REST APIs relies on OCI authentication:
Correct Answer (D): "Database ADMIN password" is not needed. REST API access uses OCI IAM credentials, not database-level credentials like the ADMIN password.
Required Items:
A: User's OCID identifies the API caller.
B: Tenancy's OCID specifies the cloud environment.
C: Fingerprint of the public key authenticates API requests with a private-public key pair.
This ensures secure, external management without exposing database credentials.
NEW QUESTION # 54
Which two actions can you perform with Autonomous Data Guard enabled on Autonomous Database on Shared Infrastructure? (Choose two.)
- A. Failover
- B. Switchover
- C. Reinstate
- D. View Apply Lag
- E. Change Protection Mode
Answer: A,B
Explanation:
Autonomous Data Guard on Shared Infrastructure enhances ADB availability with standby databases. The two correct actions are:
Switchover (C): A switchover swaps roles between the primary and standby databases in a planned manner, with no data loss (RPO = 0). You initiate this via the OCI console (e.g., "Switchover" button on the primary ADB's Data Guard section) or API (e.g., oci db autonomous-database switchover). For example, before maintenance on the primary, you switch to the standby in another region (e.g., from us-ashburn-1 to us-phoenix-1), taking ~2 minutes (RTO ≈ 2 min). This ensures continuity without downtime, as the standby becomes primary seamlessly.
Failover (D): A failover promotes the standby to primary during an unplanned outage (e.g., primary region failure), also with RPO = 0 due to synchronous replication. Trigger it via the OCI console (e.g., "Failover" on the standby) or API (e.g., oci db autonomous-database failover). For instance, if us-ashburn-1 crashes, the standby in us-phoenix-1 takes over in ~2 minutes, preserving all committed transactions. It's automatic in some cases (e.g., severe failure), but manual initiation is supported too.
The incorrect options are:
View Apply Lag (A): While relevant in traditional Data Guard (measuring replication delay), Autonomous Data Guard on shared ADB uses synchronous replication (zero lag), and apply lag isn't a user-actionable metric exposed in the UI-monitoring focuses on role status, not lag.
Reinstate (B): Reinstatement (restoring a failed primary as a standby) isn't a user action in shared infrastructure. Oracle manages post-failover recovery, and users can't manually reinstate; a new standby might be provisioned instead.
Change Protection Mode (E): Traditional Data Guard offers modes (e.g., Maximum Availability), but in Autonomous Data Guard on shared infrastructure, the mode is fixed (synchronous, akin to Maximum Availability), and users can't modify it-control is limited to switchover/failover.
These actions ensure high availability with user-initiated role changes.
NEW QUESTION # 55
Which predefined role that exists in Autonomous Database includes common privileges that are used by a Data Warehouse developer? (Choose the best answer.)
- A. DWROLE
- B. ADBDEV
- C. ADMIN
- D. ADWC
Answer: A
Explanation:
Autonomous Database provides predefined roles tailored to specific use cases. The correct answer is:
DWROLE (B): The DWROLE predefined role is designed for Data Warehouse developers. It includes privileges commonly needed for data warehousing tasks, such as creating tables, views, and materialized views, as well as executing analytical queries. This role is optimized for Autonomous Data Warehouse (ADW) workloads.
The incorrect options are:
ADBDEV (A): There is no predefined ADBDEV role in Autonomous Database; this appears to be a fictional or misinterpreted role.
ADMIN (C): The ADMIN role is a superuser role with full database privileges, far exceeding the needs of a typical Data Warehouse developer and not tailored to that specific use case.
ADWC (D): This is not a predefined role; it might be a typo or confusion with ADW (Autonomous Data Warehouse), but no such role exists.
DWROLE is the best fit for a Data Warehouse developer's needs.
NEW QUESTION # 56
Which statement is FALSE about setting up compartment quotas?
- A. Compartment quotas cannot be set on the root compartment.
- B. You cannot manage quotas in a compartment unless you belong to a group that has the correct permissions.
- C. Compartment quotas use policies that allow allocation of resources with a high level of flexibility.
- D. Quotas set on a parent compartment override quotas set on child compartments.
Answer: A
Explanation:
Compartment quotas in Oracle Cloud Infrastructure (OCI) manage resource allocation:
Correct Answer (D): "Compartment quotas cannot be set on the root compartment" is false. Quotas can be applied to any compartment, including the root compartment, to limit resource usage tenancy-wide. While direct quotas on the root are less common (child compartment quotas are typically used), it's technically possible via OCI policies.
True Statements:
A: Quotas offer flexible resource limits (e.g., OCPUs, storage) via policy statements.
B: Parent compartment quotas take precedence over child quotas, enforcing hierarchical control.
C: Managing quotas requires appropriate IAM permissions (e.g., manage quotas), ensuring security.
This flexibility supports granular resource management across the tenancy.
NEW QUESTION # 57
Where are the customer-managed encryption keys stored for Autonomous Database on Dedicated Infrastructure?
- A. On the Exadata infrastructure where the Autonomous Database Dedicated is hosted
- B. Inside the Autonomous Database wallet
- C. In a separate key vault external to the Exadata infrastructure
- D. Inside the backup of the container database
Answer: C
Explanation:
Customer-managed encryption keys enhance security control:
Correct Answer (A): "In a separate key vault external to the Exadata infrastructure" refers to OCI Vault (Key Management Service), where keys are securely stored and managed outside the database infrastructure.
Incorrect Options:
B: The wallet secures connections, not encryption keys.
C: Storing keys on Exadata compromises separation of duties.
D: Backups don't store keys; they're encrypted by keys from the vault.
This separation ensures robust key management.
NEW QUESTION # 58
Which two statements are true about the Oracle Cloud Infrastructure (OCI)? (Choose two.)
- A. Because availability domains do not share infrastructure such as power or cooling, or the internal availability domain network, a failure at one availability domain within a region is unlikely to impact the availability of the others within the same region.
- B. An OCI region is a localized geographic area, and an availability domain is one or more data centers located within a region.
- C. A single fault domain can be associated with multiple regions and availability domains.
- D. Regions are dependent on other regions and must be located within 5 thousand kilometers of each other.
Answer: A,B
Explanation:
Oracle Cloud Infrastructure (OCI) is designed with a hierarchical structure to ensure high availability and fault tolerance:
Correct Answer (B): "An OCI region is a localized geographic area, and an availability domain is one or more data centers located within a region" accurately describes OCI's architecture. A region is a standalone geographic area (e.g., US East), and availability domains (ADs) are isolated data centers within that region, enhancing resilience.
Correct Answer (D): "Because availability domains do not share infrastructure such as power or cooling, or the internal availability domain network, a failure at one availability domain within a region is unlikely to impact the availability of the others within the same region" reflects OCI's design for fault isolation. ADs are physically separate, minimizing the risk of cascading failures.
Incorrect Options:
A: Regions are independent, not dependent, and there's no 5,000-kilometer restriction; they are globally distributed for latency and redundancy purposes.
C: Fault domains are subdivisions within an AD, not across regions or ADs, ensuring resource isolation within a single AD.
This structure supports robust disaster recovery and high availability.
NEW QUESTION # 59
You need to set up a notification for a scheduled shutdown of an Autonomous Database instance. What should you do?
- A. Create a rule for the Oracle Cloud Infrastructure Event for 'Autonomous Database STOP END'
- B. Add a 'BEFORE SHUTDOWN ON DATABASE' trigger within the database
- C. Create a notification alert using DBMS_SNMP package
- D. Create an Oracle Cloud Infrastructure Alarm for Shutdown metric
Answer: A
Explanation:
Setting up notifications for scheduled shutdowns leverages OCI Events:
Correct Answer (A): Creating a rule for the 'Autonomous Database STOP END' event in OCI Events triggers a notification (e.g., email via Notification Service) when the shutdown completes. This is the recommended method for tracking lifecycle events in Autonomous Database.
Incorrect Options:
B: There is no specific "Shutdown" metric in OCI Metrics; alarms monitor performance metrics, not lifecycle events like shutdowns.
C: Database triggers like BEFORE SHUTDOWN are not supported in Autonomous Database due to its managed nature, and they wouldn't integrate with OCI notifications.
D: DBMS_SNMP is for network management, not event notifications in Autonomous Database.
This approach ensures reliable, external notification of shutdown events.
NEW QUESTION # 60
Which can be scaled independently of the number of CPUs in an Autonomous Database?
- A. Parallelism
- B. Memory
- C. Storage
- D. Sessions
- E. Concurrency
Answer: C
Explanation:
Autonomous Database allows independent scaling of certain resources:
Correct Answer (B): "Storage" can be scaled independently of OCPUs via the OCI Console or API, adjusting capacity (e.g., from 1 TB to 2 TB) without altering compute resources.
Incorrect Options:
A: Sessions depend on CPU and memory limits, not independently scalable.
C: Memory scales with OCPUs in a fixed ratio, not separately.
D, E: Concurrency and parallelism are tied to CPU resources and consumer group settings.
This flexibility optimizes cost and capacity management.
NEW QUESTION # 61
Which option describes the connection types that third-party software can use to connect to an Autonomous Database (ADB)?
- A. Any protocol supported by Oracle Net Services
- B. JDBC only
- C. New ADB-specific protocols
- D. SQL*NET only
Answer: A
Explanation:
Third-party software can connect to an Autonomous Database using standard Oracle connectivity options. The correct answer is:
Any protocol supported by Oracle Net Services (B): Autonomous Database leverages Oracle Net Services (also known as SQL*Net) for connectivity, supporting protocols like TCP/IP with TLS for secure communication. This allows a wide range of third-party tools (e.g., SQL Developer, Tableau, or custom applications) to connect using established Oracle networking standards.
The incorrect options are:
New ADB-specific protocols (A): There are no proprietary, ADB-specific protocols; it uses Oracle's existing Net Services framework.
SQL*NET only (C): While SQLNet is part of Oracle Net Services, the broader term "Oracle Net Services" encompasses all supported protocols, not just SQLNet.
JDBC only (D): JDBC is a specific Java-based API for database connectivity, not a protocol, and it's just one of many ways to connect via Oracle Net Services.
This flexibility ensures compatibility with diverse client applications.
NEW QUESTION # 62
While provisioning a dedicated Autonomous Container Database, which backup retention period CANNOT be implemented?
- A. 15 days
- B. 60 days
- C. 7 days
- D. 120 days
Answer: D
Explanation:
Full Detailed In-Depth Explanation:
When provisioning an Autonomous Container Database (ACD) on dedicated infrastructure, Oracle provides specific options for backup retention periods to balance data recovery needs with storage costs. According to the official Oracle documentation, the available backup retention periods for a dedicated ACD are:
7 days: This is the default retention period for a newly provisioned ACD.
15 days: An option for extended retention beyond the default.
60 days: The maximum supported retention period for ACDs, offering the longest recovery window.
The option of 120 days is not supported as a backup retention period for an Autonomous Container Database. This limitation is due to the design of the Autonomous Database service, which caps retention at 60 days to optimize storage and performance on dedicated Exadata infrastructure. Attempting to set a retention period beyond 60 days is not an available choice during provisioning. Users must select a retention period that meets their recovery point objectives (RPO) within these constraints, noting that longer retention increases storage usage and associated costs.
NEW QUESTION # 63
How can an Autonomous Database resource be provisioned without logging into the Oracle Cloud Infrastructure Console?
- A. Connecting to the cloud infrastructure console using the SSH wallet
- B. Using the cloud infrastructure command line interface or REST API calls
- C. Using the DBCA on the database server
- D. It cannot be done
Answer: B
Explanation:
Provisioning an Autonomous Database without using the OCI Console is possible through programmatic methods. The correct answer is:
Using the cloud infrastructure command line interface or REST API calls (D): The Oracle Cloud Infrastructure Command Line Interface (OCI CLI) and REST APIs allow users to provision and manage Autonomous Database resources programmatically. This method is ideal for automation or when GUI access is not preferred. For example, the OCI CLI command oci db autonomous-database create can be used to provision a database by specifying parameters like compartment ID, database name, and workload type. Similarly, a REST API POST request to /autonomousDatabases achieves the same result.
The incorrect options are:
Using the DBCA on the database server (A): The Database Configuration Assistant (DBCA) is a tool for on-premises Oracle databases, not for cloud-based Autonomous Databases, which are fully managed by Oracle.
Connecting to the cloud infrastructure console using the SSH wallet (B): SSH wallets are for secure shell access to compute instances, not for provisioning databases or interacting with the OCI Console.
It cannot be done (C): This is false, as programmatic provisioning via CLI or API is explicitly supported.
This capability enhances automation and integration into DevOps workflows.
NEW QUESTION # 64
Which two statements are true about accessing the Autonomous Database Tools?
- A. SQL Developer Web is exclusive to Autonomous Database, not traditional Oracle databases.
- B. Oracle Machine Learning is available only with Autonomous Data Warehouse (ADW) Database.
- C. Access to Database Actions is available for all users of Autonomous Database.
- D. Database Actions is accessible from a server running on the same virtual cloud network (VCN) when the Autonomous Database is configured with Private Endpoint networking.
- E. Oracle APEX can be accessed only from the Developer menu in the Service Console.
Answer: A,E
Explanation:
Full Detailed In-Depth Explanation:
Since only four options are provided but the format requests two answers, I'll assume E from a prior question context. Let's evaluate:
A: True but conditional. Database Actions is accessible with a Private Endpoint, but requires proper network setup (e.g., VCN peering), not guaranteed by default.
B: True. Oracle APEX is accessed exclusively via the "Developer" menu in the Service Console, not other interfaces.
C: False. Oracle Machine Learning (OML) is available in both ADW and ATP, not just ADW.
D: False. Database Actions access requires specific user privileges (e.g., DWROLE), not granted to all users by default.
E (assumed): True. SQL Developer Web is exclusive to Autonomous Database, not traditional Oracle databases.
B and E are the most definitively true statements per documentation.
NEW QUESTION # 65
Which two statements apply to the Autonomous Database service on Dedicated Infrastructure? (Choose two.)
- A. You, as the customer, are responsible for all patching operations
- B. You can set maintenance windows for an Autonomous Exadata Infrastructure
- C. Patching occurs on the first Sunday of each quarter
- D. You can set maintenance windows for each individual Autonomous Container Database
Answer: A,D
Explanation:
Autonomous Database on Dedicated Infrastructure offers more control than shared infrastructure. The two correct statements are:
You, as the customer, are responsible for all patching operations (A): In dedicated infrastructure, customers manage patching for Autonomous Container Databases (ACDs) and Autonomous Databases (ADBs), unlike shared infrastructure where Oracle handles it. You choose when to apply Release Updates (RUs) or skip them (up to two quarters), using the OCI console or API (e.g., oci db autonomous-container-database update). For example, you might schedule an RU for an ACD on a Saturday night, downloading the patch from Oracle and applying it manually to minimize downtime. This responsibility comes with the dedicated model's flexibility.
You can set maintenance windows for each individual Autonomous Container Database (C): Dedicated infrastructure allows setting specific maintenance windows per ACD, not just at the Exadata Infrastructure level. In the OCI console, under each ACD's details, you configure a preferred time (e.g., "Sundays, 02:00-04:00 UTC"), ensuring patches or upgrades align with your schedule. For instance, ACD1 might patch Sundays, while ACD2 patches Tuesdays, tailoring downtime to different workloads.
The incorrect options are:
You can set maintenance windows for an Autonomous Exadata Infrastructure (B): Maintenance windows are set at the ACD level, not the broader Autonomous Exadata Infrastructure (AEI) level. AEI maintenance (e.g., hardware updates) is Oracle-managed, with notification but no customer scheduling.
Patching occurs on the first Sunday of each quarter (D): There's no fixed schedule like "first Sunday." In dedicated mode, you control patching timing within a quarter, notified by Oracle of available RUs, unlike shared infrastructure's Oracle-driven schedule.
These statements highlight dedicated infrastructure's customer-driven management.
NEW QUESTION # 66
Which statement is correct about the Service Console in an Autonomous Database?
- A. You can use the Service Console to enable or disable auto-scaling of Autonomous DB.
- B. You can use the Service Console to create manual backups of Autonomous Database.
- C. You can use the Service Console to move Autonomous DB between compartments.
- D. You can use the Service Console to manage runaway SQL statements on Autonomous DB.
Answer: D
Explanation:
Full Detailed In-Depth Explanation:
The Service Console in Autonomous Database is for database-level management:
A: False. Auto-scaling is managed via OCI console.
B: True. It allows monitoring and terminating runaway SQL statements.
C: False. Compartment moves are OCI console tasks.
D: False. Manual backups are initiated via OCI or SQL*Plus.
NEW QUESTION # 67
What is the correct way to list all files in the default data pump directory?
- A. Log onto ADW server and issue ls -al on the command line
- B. You cannot list files in the default data pump directory from Autonomous Data Warehouse (ADW)
- C. By executing SELECT * FROM UTL_FILE.LIST('DATA_PUMP_DIR');
- D. By executing SELECT * FROM DBMS_CLOUD.LIST_FILES('DATA_PUMP_DIR');
Answer: D
Explanation:
In Oracle Autonomous Database, the DBMS_CLOUD package provides tools to interact with cloud storage and directory operations, including listing files in the default Data Pump directory (DATA_PUMP_DIR).
Correct Answer (A): The statement SELECT * FROM DBMS_CLOUD.LIST_FILES('DATA_PUMP_DIR'); is the officially supported method to list files in the DATA_PUMP_DIR. This function returns a result set with details about files in the specified directory, tailored for the managed environment of Autonomous Database.
Incorrect Options:
B: This is false; you can list files in DATA_PUMP_DIR using DBMS_CLOUD.LIST_FILES, as it is designed for this purpose in ADW.
C: The UTL_FILE package is not recommended for Autonomous Database due to its limitations in a cloud-managed environment. DBMS_CLOUD is the preferred utility for such operations. Additionally, the syntax UTL_FILE.LIST is incorrect; the proper procedure would be UTL_FILE.FGETATTR or similar, but it's still not applicable here.
D: Autonomous Database is a fully managed service, and users do not have direct command-line access to the underlying server. Commands like ls -al are unavailable as there's no shell access.
This approach ensures secure and efficient file management within the constraints of a serverless cloud database.
NEW QUESTION # 68
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