Oracle 1z0-997-21 Exam : Oracle Cloud Infrastructure 2021 Architect Professional

You are working as a solution architect for an online retail store to create a portal to allow the users to pay for their groceries using credit cards. Since the application is not fully compliant with the Payment Card Industry Data Security Standard (PCI DSS), your company is looking to use a third party payment service to process credit card payments.
The third party service allows a maximum of Spelunk IP addresses 5 public IP addresses at a time However, your website is using Oracle Cloud Infrastructure (OCI) Instance Pool Auto Scaling policy to create up to create up to 15 Instances during peak traffic demand, which are launched In VCN private in VCN private subnets and attached to an OCI public Load Balancer. Upon user payment, the portal connects to the payment service over the Interne! to complete the transaction What solution can you implement to make sure that all compute Instances can connect to the third party system to process the payments aw peak traffic demand?

• A. Route credit card payment request from the compute instances through the NAT Gateway. On the third-party services, whitelist the public IP associated with the NAT Gateway.
• B. Create an OCI Command Line Interface (CLI) script to automatically reserve public IP address for the compute instances. On the third-party services, whitelist the Reserved public IP.
• C. Whitelist the Internet Gateway Public IP on the third party service and route all payment requests through the Internet Gateway.
• D. Route payment request from the compute instances through the OCI Load Balancer, which will then be routed to the third party service.

You have been asked to create a mobile application which will be used for submitting orders by users of a popular E-Commerce site. The application is built to work with Autonomous Transaction Processing - Serverless (ATP-S) database as the backend and HTML5 on Oracle Application Express as the front end. During the peak usage of the application you notice that the application response time is very slow. ATP-S database is deployed with 3 CPU cores and 1 TB of memory.
Which two options are expensive or impractical ways to improve the application response times?

• A. Enable auto scaling for CPU cores on ATP-S database.
• B. Identify the maximum CPU capacity needed for peak times and scale the CPU core count for the ATP-S database to that number. ATP-S will scale the CPU core count down when not needed.
• C. Use the Machine Learning (ML) feature of the ATP-S database iteratively to tune the SQL queries used by the application.
• D. Scale up CPU core count and memory during peak times.
• E. Identify the maximum memory capacity needed for peak times and scale the memory for the ATP-S database to that number. ATP-S will scale the memory down when not needed.

To serve web traffic for a popular product, your cloud engineer has provisioned four BM.Standard2.52 instances, event spread across two availability domains in the us-asburn-1 region: LoadBalancer is used to deliver the traffic across instances.
After several months, the product grows even more popular and you need additional compute capacity. As a result, an engineer provisioned two additional VM.Standard2.8 instances.
You register the two VM. Standard2. 8 Instances with your load Balancer Backend sot and quickly find that the VM Standard2.8 Instances running at 100% of CPU utilization but the BM.Standard2 .52 instances have significant CPU capacity that's unused.
Which option is the most cost effective and uses instances capacity most effectively?

• A. Configure Autoscaling instance pool with LoadBalancer to add up to 3 more BM.Standard2.52 Instances when triggered. Shut off VM.Standard2.8 instances.
• B. Configure LoadBalancer with two VM Standard2.8 instances and use Autoscalling Instant pool to add up to two additional VM instances. Shut off BM.Standard2.52 instances.
• C. Route traffic to BM.Standard2.52 and VM Standard2.8 instances directly using DNS and Health Checks. Shut off the load Balances.
• D. Configure your Load Balance, with weighted round robin policy to distribute traffic to the compute instances, with more weight assigned to bare metal instances.

A company has an application that processes confidential dat
a. The data is currently stored in an on-premises data center. A solution architect needs to move this data to Oracle Cloud Infrastructure (OCI) Object Storage and ensure data is encrypted in-transit to OCI.
Which two steps should the solution architect perform to set up the most cost-effective connection between on-premises data center and OCI?

• A. Set up VPN Connect between the customer equipment and the Dynamic Routing Gateway.
• B. Configure a service gateway accessing Object Storage.
• C. Configure a private peering connection on the Oracle FastConnect
• D. Set up private end point for accessing Object Storage.
• E. Set up an IPsec tunnel between the customer equipment and software VPN on an oci instance
• F. Attach an Internet Gateway to Virtual Cloud network(VCN).

Which of the following is NOT a good use case for using the functionality available in the Oracle Cloud Infrastructure (OCI) Events service?

• A. Publish all events in a specific compartment to Oracle Streaming service for later analysis.
• B. Trigger a notification when a function completes its execution.
• C. Triggers Function using Oracle Functions when new files are uploaded in an OCI Object Storage bucket.
• D. Capture Monitoring Alarms and invoke Autoscaling of compute instances.
• E. Publish a notification when long lived tasks complete, such as OCI Autonomous Database backup completion.