You have an Oracle database system in a virtual cloud network (VCN) that needs to be accessible on port 1521 from your on-premises network CIDR 172.17.0.0/24.
You have the following configuration currently.
Virtual cloud network (VCD) is associated with a Dynamic Routing Gateway (DRG), and DRG has an active IPSec connection with your on-premises data center.
Oracle database system is hosted in a private subnet
The private subnet route table has the following configuration
The private subnet route table has following configuration.

However, you are still unable to connect to the Oracle Database system.
Which action will resolve this issue?
A)
Add an EGRESS rule in network security group as following.

B)
Add a route rule in the private subnet route table as following.

C)
Add an EGRESS rule in private subnet scurity list as following.

D)
Add an EGRESS rule in private subnet security list as following.

• A.Option A
• B.Option B
• C.Option C
• D.Option D

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You want to automate the processing of new Image files to generate thumbnails. the expected rate is 10 new files every hour.
Which of the following is the most cost effective option to meet this requirement in Oracle Cloud Infrastructure (OCI)?

• A.Upload files to an OCI Object storage bucket. Every time a file is uploaded, an event is emitted. Write a rule to filter these events with an action to trigger a function in Oracle Functions. The function processes the image in the file and stores the thumbnails back in an Object storage bucket.
• B.Upload files to an OCI Object storage bucket. Every time a file is uploaded, trigger an event with an action to provision a compute instance with a cloud-init script to access the file, process it and store it back in an Object storage bucket. Terminate the instance using Autoscaling policy after the processing is finished.
• C.Build a web application to ingest the files and save them to a NoSQL Database. Configure OCI Events service to trigger a notification using Oracle Notification Service (ONS). ONS invokes a custom application to process the image files to generate thumbnails. Store thumbnails in a NoSQL Database table.
• D.Upload all files to an Oracle Streaming Service (OSS) stream. Set up a cron job to invoke a function in Oracle Functions to fetch data from the stream. Invoke another function to process the image files and generate thumbnails. Store thumbnails in another OSS stream.

Correct Answer: A

Explanation
You can invoke a function that you've deployed to Oracle Functions by triggered by an event in the Events service when update the Object storage to fetch the data then the function can process the File and store back to Object storage

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A civil engineering company is running an online portal In which engineers can upload there constructions photos, videos, and other digital files.
There is a new requirement for you to implement: the online portal must offload the digital content to an Object Storage bucket for a period of 72 hours. After the provided time limit has elapsed, the portal will hold all the digital content locally and wait for the next offload period.
Which option fulfills this requirement?

• A.Create a pre-authenticated URL for the entire Object Storage bucket to read and list the content with an expiration of 72 hours.
• B.Create a pre authenticated URL lot each object that Is uploaded to the Object Storage bucket with an expiration of 72 hours.
• C.Create a Dynamic Group with matching rule for the portal compute Instance and grant access to the Object Storage bucket for 72 hours.
• D.Create a pre authenticated URL for the entire Object Storage bucket to write content with an expiration of 72 hours.

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You are trying to troubleshoot the configuration of your Oracle Cloud Infrastructure (OCI) Load Balancing service. You have a backend HTTP service for which you have created a backend set in the load balancer. You have configured health checks for the backend set. Although the health checks appear good, customers sometimes experience transaction failures.
Which of the following options will definitely lead to this problem?

• A.You are using OCI Domain Name System. You have misconfigured the 'A' record with the wrong IP address leading to requests not getting routed correctly.
• B.You are using iSCI for block volume attachment to the compute instances in your backed HTTP service. TCP/IP configuration of your block volume attachment is not configured correctly, leading to issues in your backend service.
• C.You are NOT using regional subnets in your Virtual Cloud Network. With Availability Domain (AD) specific subnet. the compute instances of the backend service running in the subnet have issues when the AD is down.
• D.You are running a TCP-level health check against your HTTP service. The TCP handshake can succeed and indicate that the service is up even when the HTTP service has issues.

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A developer is using Oracle Functions to deploy her code as part of an event-driven solution in Oracle Cloud Infrastructure (OCI). When she invokes her function, Oracle Functions returns a FunctionlnvokelmageNotAvailable message and a 502 error:

Which of the following options is NOT a plausible reason for this error?

• A.The function does not exist in the specified location in OCI Registry.
• B.Missing or invalid IAM policy to give Oracle Functions read access to images stored for functions in repositories in OCI Registry.
• C.The VCN being used does not have an internet gateway or a service gateway configured for Oracle Functions to be able to access OCI Registry.
• D.OCI Events service rule is not configured with the correct location of the function in OCI Registry.

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