1Z0-997-25 Sample Questions & Answers
Designing for high availability with solid disaster recovery ties the heaviest weight with implementing and operating OCI databases, alongside security management, multicloud and hybrid design, workload migration, and cloud-native architecture using microservices.
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- Question 1Intermediate
Implementing Security Solutions · Implement and automate secrets management solution using OCI Vault
A developer is building a serverless application using OCI Functions. The function requires access to a legacy database that runs on a Compute instance in a private subnet. The function code needs the database credentials, but security policy strictly prohibits hardcoding secrets in the code or environment variables.
Which sequence of steps implements the most secure and compliant solution?
Show answer & explanation
Correct answer: C
This approach uses Resource Principals (authentication provided by the OCI platform to the function resource) to authenticate against the Vault service. It avoids managing any static credentials or configuration files. The Dynamic Group logically groups the function instances.
- Question 2Advanced
Implementing Security Solutions · Implement and automate secrets management solution using OCI Vault
Case Study:
Company Background:
TechFin Global is migrating its core banking platform to OCI. The platform consists of a Web Tier (OCI Container Engine for Kubernetes), an App Tier (OCI Functions), and a Database Tier (Autonomous Transaction Processing).Requirement:
The security team mandates that all application secrets (API keys, DB passwords) must be automatically rotated every 60 days. The rotation process must be fully automated without human intervention. The database password rotation must update the Autonomous Database user password and the secret stored in OCI Vault simultaneously to avoid downtime.Current Status:
You have configured OCI Vault to store the DB password. You have a function code ready to perform the rotation logic.Question:
Which architectural component should you configure to trigger and execute this secret rotation securely according to OCI best practices?Show answer & explanation
Correct answer: D
OCI Vault supports native Secret Rotation by invoking an OCI Function. The Vault service triggers the function according to the schedule. The function, authenticated via Resource Principal, performs the dual update (Database user and Vault Secret) to ensure consistency. This is the managed, cloud-native way to handle rotation.
- Question 3Intermediate
Designing and Evaluating Multicloud and Hybrid Solutions · Implement Oracle Interconnect for Azure and Oracle Database@Azure
Your organization is deploying a multi-cloud solution using Oracle Database@Azure. The application tier runs in an Azure VNet in the East US region, and the database service is an Oracle Exadata Database Service hosted in the OCI East US region, physically co-located in the Azure data center. You need to ensure the lowest possible latency between the Azure application and the Oracle database.
Which networking component is automatically provisioned and utilized to facilitate this direct connectivity?
Show answer & explanation
Correct answer: D
In the Oracle Database@Azure architecture, the Oracle Database resources are injected directly into the customer's Azure VNet using an Azure Delegated Subnet. This allows the Azure application resources to communicate with the Oracle Database using local Azure VNet networking speeds, achieving single-digit millisecond latency without traversing a standard public internet or traditional VPN path.
- Question 4Intermediate
Implementing and Operating Databases in OCI · Optimize application performance and scalability using OCI Cache
True or False: When configuring OCI Cache with Redis, you can distribute the primary and replica nodes across different OCI regions to achieve active-active cross-region read/write consistency.
Show answer & explanation
Correct answer: B
OCI Cache with Redis is a regional service. While it supports high availability within a region (using Availability Domains or Fault Domains), it does not currently support active-active cross-region clustering where a single cluster spans multiple regions for synchronous writes.
- Question 5Intermediate
Migrating Workloads to OCI · Design and implement workload migration to OCI with Oracle Cloud Migrations
You are managing a large-scale migration of virtual machines from an on-premises VMware environment to OCI using the OCI Cloud Migrations service. During the 'Replication' phase, you notice that the replication bandwidth is saturating your corporate VPN connection, impacting other business traffic. You need to limit the bandwidth used by the replication process without stopping the migration.
What action should you take?
Show answer & explanation
Correct answer: A
The OCI Cloud Migrations service uses a Remote Agent Appliance (or Bridge) deployed on-premises. This appliance acts as the gateway for replication data. You can configure throttling settings on this appliance to limit the outbound bandwidth it consumes.
- Question 6Beginner
Implementing Observability Solutions · Understand the Observability platform
A customer is using OCI Application Performance Monitoring (APM) to troubleshoot a slow microservice. They want to trace a user request from the browser through the API Gateway, into the OKE cluster, and finally to the Autonomous Database.
Which OCI APM feature enables the visualization of this end-to-end flow and the identification of the high-latency hop?
Show answer & explanation
Correct answer: B
Distributed Tracing is the specific capability within APM that tracks a single transaction (trace) across multiple services (spans), visualizing the entire call tree and latency contribution of each component.
- Question 7Intermediate
Migrating Workloads to OCI · Implement and troubleshoot database and data migrations to OCI
You are designing a solution to migrate a 50 TB Oracle Data Warehouse from on-premises to an Oracle Autonomous Data Warehouse (ADW) on OCI. The on-premises data center has a 1 Gbps internet connection which is heavily used by other business applications. You have a strict deadline to complete the data transfer within 7 days.
Which data migration approach meets the deadline with the LEAST impact on the existing internet connection?
Show answer & explanation
Correct answer: B
Transferring 50TB over a shared 1Gbps link (theoretical max ~10TB/day if 100% dedicated, but likely much less) would likely miss the 7-day deadline and severely impact business traffic. The Data Transfer Appliance is an offline method ideal for large datasets with limited bandwidth.
- Question 8Beginner
Designing High Availability and Disaster Recovery Solutions · Design scalable and resilient solutions for high availability and disaster recovery
An architect is designing a high-availability architecture for a web application. The design involves deploying web servers across two OCI regions: US East (Ashburn) and US West (Phoenix). The requirement is to route users to the region with the lowest latency. If the US East region becomes completely unavailable, all traffic must automatically failover to US West.
Which OCI Traffic Management Steering Policy type should be used?
Show answer & explanation
Correct answer: A
Wait, Geolocation routes based on location, not latency. However, typically 'lowest latency' implies routing users to the geographically closest region. OCI does have a specific 'IP Prefix' or 'Geolocation' steering. BUT, typically 'Load Balancer' steering policy allows failover. Let's re-read carefully. 'Route users to the region with the lowest latency'. Technically, 'Geolocation' is the closest proxy for latency if 'ASN/IP Prefix' isn't an option. BUT, OCI DNS Traffic Management specifically has a Failover policy and a Geolocation policy. If the requirement is failover combined with latency, usually you use Geolocation (to direct East users to East) and configure health checks so that if East fails, the answer pool serves West IPs.
Correction: OCI does have a 'Load Balancer' steering policy type (not the service, the policy type) which distributes traffic.
Let's choose the BEST fit. 'Geolocation' policy allows defining: 'If request comes from North America East -> Answer Ashburn IP'. It also supports attaching Health Checks. If Ashburn fails health check, it can serve Phoenix IP. This meets the 'lowest latency' (by proxy of geo) and 'failover' requirement.
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