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Oracle Autonomous Database Cloud 2025 Professional Sample Questions (Q79-Q84):
NEW QUESTION # 79
A Business Analyst joined your organization and wants to explore the database tools. When restoring or cloning an Autonomous Database (ADB), you must select a backup that is at least how old?
- A. 1 day
- B. 2 hours
- C. 5 minutes
- D. 24 hours
Answer: D
Explanation:
Full Detailed In-Depth Explanation:
When restoring or cloning an Autonomous Database (ADB), Oracle enforces a minimum backup age to ensure data consistency and integrity. The official Oracle documentation specifies that backups used for these operations must be at least 24 hours old. This requirement exists because:
Backups need time to complete and stabilize, ensuring all transactions are fully committed and the backup is consistent.
Recent backups (e.g., less than 24 hours old) may still be in progress or lack full verification, risking incomplete or corrupted restores/clones.
Options B (5 minutes), C (2 hours), and D (1 day) are either too short or redundant:
5 minutes and 2 hours: Too recent, violating the 24-hour rule.
1 day: Matches 24 hours but is less precise than the explicit "24 hours" phrasing in the documentation.
For the Business Analyst's exploration, they can access tools like SQL Developer Web or Data Load via the OCI Console under the "Tools" tab, but this question focuses on the backup age constraint, making A the best answer.
NEW QUESTION # 80
Which statement is FALSE about Autonomous Database maintenance on Dedicated Infrastructure?
- A. Autonomous Exadata Infrastructure maintenance runs are for infrastructure patching (including patching of the Exadata grid infrastructure code and operating systems updates) and includes container database patching.
- B. If a scheduled container database maintenance run cannot take place, Oracle automatically reschedules the container database maintenance for the following quarter.
- C. You can change your container database maintenance window or reschedule a single container database maintenance run to ensure that your container database maintenance runs follow.
- D. Autonomous Exadata Infrastructure maintenance takes place at least once each quarter.
Answer: A
Explanation:
Full Detailed In-Depth Explanation:
Maintenance on dedicated infrastructure:
A: True. You can adjust maintenance windows for container databases.
B: False. Exadata Infrastructure maintenance (e.g., OS, grid patching) is separate from container database patching, which occurs independently.
C: True. Oracle reschedules missed maintenance to the next quarter.
D: True. Infrastructure maintenance occurs quarterly.
NEW QUESTION # 81
Which can be used to ensure that your Autonomous Database is accessible only from a given set of IPs?
- A. IPSec List
- B. Security List
- C. IP Vault
- D. Access Control List
Answer: D
Explanation:
Restricting access to an Autonomous Database to specific IPs involves network security controls. The correct answer is:
Access Control List (C): In Autonomous Database, an Access Control List (ACL) defines which IP addresses or CIDR blocks (e.g., 192.168.1.0/24) can connect to the database. You configure this via the OCI console under the ADB's "Access Control List" settings, adding rules like "Allow TCP from 10.0.0.0/16 on port 1522." This applies to public endpoints (shared infrastructure) or private endpoints with additional network rules, ensuring only authorized IPs can initiate connections. For example, a company might restrict access to its office VPN range, blocking all other traffic. ACLs work at the database level, complementing VCN security.
The incorrect options are:
Security List (A): Security Lists operate at the VCN subnet level, controlling traffic to all resources in the subnet (e.g., ingress TCP 1522 to an ADB subnet). While useful, they're broader than ADB-specific ACLs, which target the database instance directly, making ACLs the precise answer here.
IP Vault (B): There's no "IP Vault" in OCI. This might confuse OCI Vault (for secrets), but it doesn't manage IP access.
IPSec List (D): IPSec secures traffic via VPNs, not IP allowlisting for database access. It's unrelated to ADB connectivity restrictions.
ACLs provide a database-specific, user-friendly way to enforce IP-based access control.
NEW QUESTION # 82
What happens with the standby database when disabling Autonomous Data Guard?
- A. The standby database is started read-only
- B. The standby database is terminated.
- C. The standby database is started read-write
- D. The standby database is transformed into a refreshable clone
Answer: B
Explanation:
Disabling Autonomous Data Guard affects the standby database:
Correct Answer (A): "The standby database is terminated" is true. When Data Guard is disabled via the OCI Console or API, the standby database is deleted, ending its role as a replica. This is a permanent action requiring re-enablement to recreate a standby.
Incorrect Options:
B: The standby doesn't become read-write; it's removed entirely.
C: It doesn't remain read-only; termination stops all operations.
D: It's not converted to a refreshable clone; that's a separate feature.
This ensures resource cleanup when high availability is no longer needed.
NEW QUESTION # 83
Which three Oracle Cloud Infrastructure (OCI) resources do you need to configure before provisioning your Autonomous Database with a private endpoint? (Choose three.)
- A. Network Security Group
- B. VCN
- C. Route Table
- D. Security List
- E. Subnet
Answer: A,B,E
Explanation:
Provisioning an Autonomous Database with a private endpoint requires:
Correct Answer (A): Network Security Group (NSG) defines traffic rules for the private endpoint, restricting access to specific sources.
Correct Answer (B): VCN (Virtual Cloud Network) provides the network foundation, hosting the subnet and endpoint.
Correct Answer (E): Subnet (private) contains the database's private endpoint, isolating it from public access.
Incorrect Options:
C: Security Lists apply to subnets but are optional with NSGs, which are preferred for finer control.
D: Route Table is needed for connectivity (e.g., to a NAT Gateway), but not strictly required for the private endpoint itself.
These ensure secure, private access.
NEW QUESTION # 84
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