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QUESTION 1

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 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.

B. 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.

C. 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.

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.

 

QUESTION 2

As a solution architect, you are designing a web application to be deployed across multiple Oracle Cloud
Infrastructures (OCI) regions for a global audience. Your goal is that users from each region should access
the application web servers deployed in their own geographical OCI location.
Which OCI feature can be used to achieve this?

A. OCI Traffic Management IP Prefix steering policy
B. OCI Global Load balancers
C. OCI Public Load Balancers
D. OCI Traffic Management GeoLocation steering policy

 

QUESTION 3

You are working on the migration of the web application infrastructure of your company from on- premises
to Oracle Cloud Infrastructure. You need to ensure that the DNS cache entries of external clients will not
direct them to the on-premises infrastructure after switching to the new infrastructure.
Which of the following options will minimize this problem?

A. Reduce the TTL of the DNS records after the switch.
B. DNS changes propagate fast enough that it is not necessary to take any action.
C. Increase the TTL of the DNS records before the switch.
D. Increase the TTL of the DNS records after the switch.
E. Reduce the TTL of the DNS records before the switch.

 

QUESTION 4

A customer has a Virtual Machine instance running in their Oracle Cloud Infrastructure tenancy. They
realized that they wrongly picked a smaller shape for their compute instance. They are reaching out to you
to help them fix the issue.
Which of the below options is best recommended to suggest to the customer?

A. Delete the running instance and spin up a new instance with the desired shape.

B. Change the shape of instance without reboot, but stop all the applications running on instance beforehand to prevent data corruption.

C. Change the shape of the virtual machine instance using the Change Shape feature available in the console.

D. OCI doesn\\’t allow such an operation.

You can change the shape of a virtual machine (VM) instance without having to rebuild your instances or redeploy your
applications. This lets you scale up your Compute resources for increased performance, or scale down to reduce cost.
When you change the shape of an instance, you select a different processor, number of cores, amount of memory,
network bandwidth, and maximum number of VNICs for the instance. The instance\\’s public and private IP addresses,
volume attachments, and VNIC attachments remain the same.

 

QUESTION 5

You are tasked with migrating an online shopping website to Oracle Cloud Infrastructure (OCI) and decide to use a Load Balancer. You have configured the backend set with the round robin policy. During the testing phase, you noticed that users are losing items from their shopping carts when they navigate to different pages. How should you implement a solution to this problem?

A. Set up a Traffic Management Steering Policy to redirect traffic to a different backend set that is deployed exclusively
for the purpose of holding all Items placed in the shopping cart.

B. Configure a set of path route rules that will route to different backend sets based on the URI requested by the
customer\\’s browser.

C. Replace the round robin policy with least connections policy at the backend set.

D. Set up session persistence at the Load Balancer backend set.

 

QUESTION 6

Which of the following is NOT a good use case for the Oracle Cloud Infrastructure (OCI) Streaming service?

A. Meeting compliance requirements for data to remain unchanged over a long time, so that it can be retrieved for audit purposes.

B. Messaging with a pull-based communication model and the ability to feed multiple consumers with the same data
independently.

C. Ingesting metric and log data to help make critical operational data more quickly available for indexing, analysis, and
visualization.

D. Providing a unified entry point for cloud components to report their life cycle events for audit, accounting, and related activities.

 

QUESTION 7

You are working as a cloud consultant for a major media company. In the US and your client requested to
consolidate all of their log streams, access logs, application logs, and security logs into a single system.
The client wants to analyze all of their logs In real-time based on heuristics and the result should be
validated as well. This validation process requires going back to data samples extracted from the last 8
hours.
What approach should you take for this scenario?

A. Create an auto scaling pool of syslog-enabled servers using compute instances which will store the logs In Object
storage, then use map reduce jobs to extract logs from Object storage, and apply heuristics on the logs.

B. Create a bare-metal instance big enough to host a syslog enabled server to process the logs and store logs on the
locally attached NVMe SSDs for rapid retrieval of logs when needed.

C. Set up an OCI Audit service and ingest all the API arils from Audit service pragmatically to a client side application to
apply heuristics and save the result in an OCI Object storage.

D. Stream all the logs and cloud events of Events service to Oracle Streaming Service. Build a client process that will
apply heuristics on the logs and store them in an Object Storage.

The Oracle Cloud Infrastructure Streaming service provides a fully managed, scalable, and durable storage solution for
ingesting continuous, high-volume streams of data that you can consume and process in real time. Streaming can be
used for messaging, ingesting high-volume data such as application logs, operational telemetry, web click-stream data,
or other use cases in which data is produced and processed continually and sequentially in a publish-subscribe
messaging model. Streaming Usage Scenarios Here are some of the many possible uses for Streaming: Metric and log
ingestion: Use the Streaming service as an alternative for traditional file-scraping approaches to help make critical
operational data more quickly available for indexing, analysis, and visualization. Messaging: Use Streaming to decouple
components of large systems. Streaming provides a pull/ bufferbased communication model with sufficient capacity to
flatten load spikes and the ability to feed multiple consumers with the same data independently. Key-scoped ordering
and guaranteed durability provide reliable primitives to implement various messaging patterns, while high throughput
potential allows for such a system to scale well. Web/Mobile activity data ingestion: Use Streaming for capturing activity from websites or mobile apps (such as page views, searches, or other actions users may take). This information can be used for realtime monitoring and analytics, as well as in data warehousing systems for offline processing and reporting.
Infrastructure and apps event processing: Use Streaming as a unified entry point for cloud components to report their
life cycle events for audit, accounting, and related activities.

 

QUESTION 8

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 your Load Balance, with weighted round robin policy to distribute traffic to the compute instances, with
more weight assigned to bare metal instances.

B. Configure Autoscaling instance pool with LoadBalancer to add up to 3 more BM.Standard2.52 Instances when
triggered. Shut off VM.Standard2.8 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 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.

Customer have 4 BM.Standard2.52 and After several months he need additional compute capacity customer find The
VM Standard2.8 Instances running at 100% of CPU utilization but the BM.Standard2 .52 instances have significant CPU
capacity that unused. so the customer need to check the Load balance policy to make sure the 4 BM and VM is utilize
correctly

 

QUESTION 9

You are trying to delete a compartment. The delete operation is falling and you need to troubleshoot the
problem.
Which step should NOT be considered when troubleshooting this issue?

A. Verify that there are no policies In the root compartment that reference the compartment you are trying to delete.
B. Verify that you have removed all resources from the compartment.
C. Make sure you have at least one more compartment in your tenancy other than the root compartment.
D. Search for resources in the compartment for each region that your tenancy is subscribed to.

 

QUESTION 10

An E-commerce company which sells computers, tablets, and other electronics items has recently decided to move all
of their on-premises infrastructure to Oracle Cloud Infrastructure (OCI). One of their on-premises application is running
on an NGINX server and the Oracle Database is running in a 2 node Oracle Real Application Clusters (RAC)
configuration. They cannot afford to have any application down time when they do the migration. What is an effective
mechanism to migrate the customer application to OCI and set up regular automated backups?

A. Launch a compute instance and run an NGINX server to host the application. Deploy a 2 node VM DB Systems with
Oracle RAC enabled. Import the on-premises database to OCI VM DB Systems using Oracle Data Pump and then
enable automatic backups.

B. Launch a compute instance for both the NGINX application server and the database server. Attach block volumes on
the database server compute instance and enable backup policy to backup the block volumes.

C. Launch a compute instance and run an NGINX server to host the application. Deploy Exadata Quarter Rack, enable
automatic backups and import the database using Oracle Data Pump.

D. Launch a compute instance and run an NGINX server to host the application. Deploy a 2 node VM DB Systems with
Oracle RAC enabled. Setup Oracle GoldenGate to synchronize data from their on-premises database to OCIVM
Database. Export and Import the on-premises database to OCIVM DB Systems using Oracle Data Pump, apply the
GoldenGate trail files to sync up the OCI database with the on-premises database. Enable automatic backups for the
OCIVM database and then cutoverthe application from on-premises to OCI.

 

QUESTION 11

You have been asked to create a mobile application which will be used for submitting orders by users of a popular ECommerce 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. 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.

B. Use the Machine Learning (ML) feature of the ATP-S database iteratively to tune the SQL queries used by the
application.

C. Scale up CPU core count and memory during peak times.

D. Enable auto scaling for CPU cores on ATP-S database.

E. Identify the maximum CPU capacity needed for peak times and scale the CPU core count for the ATPS database to
that number. ATP-S will scale the CPU core count down when not needed.

 

QUESTION 12

As a part of migration exercise for an existing on premises application to Oracle Cloud Infrastructure
(OCT), yon ore required to transfer a 7 TB file to OCI Object Storage. You have decided to upload
functionality of Object Storage.
Which two statements are true?

A. Active multipart upload can be checked by listing all parts that have been uploaded, however It Is not possible to list
information for individual object part in an active multipart upload

B. It is possible to spill this fileInto multiple parts using the APIs provided by Object Storage.

C. It is possible to split this file into multiple parts using rclone tool provided by Object Storage.

D. After initiating a multipart upload by making a CreateMultlPartUpload RESI API Call, the upload remains active until
you explicitly commit it or abort.

E. Contiguous numbers need to be assigned for each part so that Object Storage constructs the object by ordering, part numbers in ascending order

You can check on an active multipart upload by listing all parts that have been uploaded. (You cannot list information for an individual object part in an active multipart upload.) After you finish creating object parts, initiate a multipart upload by making a CreateMultipartUpload REST API call. Provide the object name and any object metadata. Object Storage responds with a unique upload ID that you must include in any requests related to this multipart upload. Object Storage also marks the upload as active. The upload remains active until you explicitly commit it or abort it.

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