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1z0-1084-23 Oracle Cloud Infrastructure 2023 Developer Professional Questions and Answers

Questions 4

You encounter an unexpected error when invoking Oracle Functions from your Cloud Shell session named myfunction in the myapp application. Which option will get you more information on theerror?

Options:

A.

fn --verbose invoke myapp myfunction

B.

fn --debug invoke myapp myfunction

C.

Contact Oracle support with your error message

D.

DEBUG=1 fn invoke myapp myfunction

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Questions 5

Having created a Container Engine for Kubernetes (OKE) cluster, you can use Oracle Cloud Infrastructure (OCI) Logging to view and search the logs of applications running on the worker node compute instances in the cluster. Which task is NOT required to collect and parse applicationlogs? (Choose the best answer.)

Options:

A.

Create a dynamic group with a rule that includes all worker nodes In the cluster.

B.

Set the OCI Logging option to Enabled for the cluster.

C.

Enable monitoring for all worker nodes in the cluster.

D.

Configure a custom log in OCI Logging with the appropriate agent configuration.

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Questions 6

Which is the smalled unit of Kubernetes architecture?

Options:

A.

Node

B.

Container

C.

Cluster

D.

Pod

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Questions 7

You are a developing a microservices application that will be a consumer of the Oracle CloudInfrastructure (OCI) Streaming service. Which API method should you use to read and process a stream?

Options:

A.

GetStream

B.

ReadMessages

C.

ProcessStream

D.

ReadStream

E.

GetMessages

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Questions 8

How are cloud native application versions deployed to an OKE cluster when using a blue/green deployment strategy?

Options:

A.

Current applications are slowly replaced with new application versions.

B.

New application versions are deployed in minor increments to a select group of people.

C.

Both old and new application versions are deployedto production at the same time.

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Questions 9

As a Cloud Native developer, you develop two services in Node.js and deploy them to two different Container Engine for Kubernetes (OKE) clusters that use the same Virtual Cloud Network (VCN). Your security team wants to analyze the network communication between them. How can this requirement be met in the most cost-effective way?

Options:

A.

Rewrite the application and send the application logs to an outside log aggregator.

B.

Deploy a third-party logging service and aggregate the network flow logs.

C.

Use the OCI Logging service and enable VCN flow logs.

D.

Deploy Wireshark and intercept the packets.

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Questions 10

Your organization has deployed their e-commerce application on Oracle Container Engine for Kubernetes (OKE) and they are using the Oracle Cloud Infrastructure Registry (OCIR) service as their Docker image repository. They have deployed the OKE cluster using the 'custom create' option, and their Virtual Cloud Network (VCN) has three public subnets with associated Route Tables, Security Lists, and Internet Gateway. However, their application containers are failing to deploy. On investigation, they discover that the images are not being pulled from the designated OCIR repository, even though the YAML configuration has the correct path to the images. What is a valid concern here that needs to be further investigated?

Options:

A.

Security List rule for TCP port 22 needs to be added to connect to the OCIR service.

B.

VCN hosting the OKE cluster worker nodes needs to have a NAT gateway to access OCIR repositories.

C.

Identity and Access Management (IAM) credentials need to be added for each user that deploys applications to the OKE cluster.

D.

OKE cluster needs to have a secret with the credentials of their OCIR repository and use that secret in the Kubernetes deployment manifest.

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Questions 11

Which TWO statements are correct regarding Docker images and containers? (Choose two.)

Options:

A.

Only one container can be spawned from a given image at a time.

B.

An image is a collection of immutable layers whereas a container is a running instance of an image.

C.

If multiple containers are spawned from the same image, then they all use the same copy of that image in memory.

D.

Writing and building a new Dockerfile is the only way you can create new Docker images.

E.

A container can exist without an image but an image cannot exist without a container.

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Questions 12

Oracle Functions monitors all deployed functions and collects and reports various metrics. Which is NOT available when viewing the Application metrics in the Oracle Cloud Infrastructure (OCI) Console?

Options:

A.

The length of time a function runs for.

B.

The number of retries made by the function before failing due to an error.

C.

The number of requests to invoke a function that failed due to throttling.

D.

The number of requests to invoke a function that failed with an error response.

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Questions 13

Which open source engine is used by Oracle Cloud Infrastructure (OCI) to power Oracle Functions?

Options:

A.

Knative

B.

Kubeless

C.

Apache OpenWhisk

D.

Fn Project

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Questions 14

In the DevOps lifecycle, what is the difference between continuous delivery and continuous deployment? (Choose two.)

Options:

A.

Continuous delivery involves automation of developer tasks, while continuous deployment involves manual operational tasks.

B.

Continuous delivery utilizes automatic deployment to a development environment, while continuous deployment involves automatic deployment to a production environment.

C.

Continuous delivery requires more automatic linting, while continuous deployment testing must be run manually.

D.

Continuous delivery is a process that initiates deployment manually, while continuous deployment is based on automating the deployment process.

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Questions 15

Which one of the following is NOT a valid backend-type supported by Oracle Cloud Infrastructure (OCI) API Gateway?

Options:

A.

STOCK_RESPONSE_BACKEND

B.

HTTP BACKEND

C.

ORACLE_FUNCTIONS_BACKEND

D.

ORACLE_STREAMS_BACKEND

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Questions 16

A service you are deploying to Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE) uses a docker image from a private repository in OCI Registry (OCIR). Which configuration is necessary to provide access to this repository from OKE?

Options:

A.

Create a docker-registry secret for OCIR with API key credentials on the cluster, and specify the imagePullSecret property in the application deployment manifest.

B.

Create a docker-registry secret for OCIR with identity Auth Token on the cluster, and specify the imagePullSecret property in the application deployment manifest.

C.

Create a dynamic group for nodes in the cluster, and a policy that allows the dynamic group to read repositories in the same compartment.

D.

Add a generic secret on the cluster containing your identity credentials. Then specify a registryCredentials property in the deployment manifest.

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Questions 17

Your organization is developing serverless applications with Oracle Functions. Many functions will need to store state data in a database, which will require using appropriate credentials. However, your corporate security standards mandate encryption of secret information, such as database passwords. How would you address this security requirement?

Options:

A.

Use OCI Console to enter the password in the function configuration section in the providedinput field.

B.

Leverage application-level configuration variables to store passwords because they are automatically encrypted by Oracle Functions.

C.

Use the OCI Vault service to auto-encrypt the password and then set an application-level configuration variable to reference the auto-decrypted password inside your function container.

D.

Encrypt the password using the OCI Vault service and then decrypt this password in your function code with the generated key.

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Questions 18

To effectively test your cloud native applications for "unknown unknowns", you need to employ various testing and deployment strategies. Which strategy involves exposing new functionality or features to only a small set of users?

Options:

A.

A/B Testing

B.

Component Testing

C.

Blue/Green Deployment

D.

Canary Deployment

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Questions 19

Your team has chosen to use master encryption key (MEK) within an Oracle Cloud Infrastructure (OCI) Vault for encrypting Kubernetes secrets associated with your microservice deployments in OCI Container Engine for Kubernetes (OKE) clusters so that you can easily manage key rotation. Which of the following is NOT valid about rotating keys in the OCI Vault service?

Options:

A.

Once rotated, older key versions can be used for encryption until they are deleted.

B.

Both software and HSM-protected MEKS can be rotated.

C.

When you rotate an MEK, a new key version is automatically generated.

D.

Each key version is tracked internally with separate unique OCIDS.

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Questions 20

Which testing strategy achieves high velocity of deployments and releases of cloud native applications? (Choose the best answer.)

Options:

A.

Penetration testing

B.

Automated testing

C.

Integration testing

D.

A/B testing

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Questions 21

You are building a container image and pushing it to Oracle Cloud Infrastructure Registry (OCIR). You need to ensure that these images never get deleted from the repository. Which action should you take?

Options:

A.

Write a policy to limit access to the specific repository in your compartment.

B.

Create a group and assign a policy to perform lifecycle operations on images.

C.

Set global policy of image retention to "Retain All Images".

D.

Edit the tenancy global retention policy.

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Questions 22

Which of these is NOT a valid authentication method for accessing an OCI API Gateway deployment?

Options:

A.

HTTP Basic

B.

API Key

C.

OAuth

D.

SAML Token

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Questions 23

You are developing a polyglot serverless application using Oracle Functions. Which language cannot be used to write your function code?

Options:

A.

PL/SQL

B.

Python

C.

Node.js

D.

Go

E.

Java

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Questions 24

Which is NOT a valid use case for leveraging the Oracle Cloud Infrastructure (OCI) Events service?

Options:

A.

Capturing the OCI Monitoring service alarms and invoking autoscaling of compute instances.

B.

Publishing a notification when long-lived tasks complete, such as an OCI Autonomous Database backup completion.

C.

Triggering a notification action when a function completes its execution.

D.

Triggering a function deployed in Oracle Functions when new files are uploaded to an OCI Object Storage bucket.

E.

Publishing all the OCI resource events in a specific compartment to the OCI Streaming service for later analysis.

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Questions 25

Your organization has mandated that all deployed container images used for microservices must be signed by a specified master encryption key (MEK). You have appropriately signed the container images as part of your build process, but must now ensure that they are automatically verified when they are deployed to Oracle Cloud Infrastructure (OCI) Container Engine for Kubemetes (OKE) clusters. Which option should be used to mandate image verification when deploying to OKEclusters, assuming that MEK is already stored in an available OCI Vault? (Choose the best answer.)

Options:

A.

Enable image verification policies separately for each Kubemetes pod deployment because this is enforced at the pod level.

B.

Enable image verification policies separately for each node pool within each OKE cluster because this is enforced at the node pool level.

C.

Enable image verification policies separately for each OKE cluster because this is enforced at the cluster level.

(Correct)

D.

Enable Image verification policies for your OKE service control plane which will enforce this for all OKE clusters.

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Questions 26

Which of the following is NOT a criterion that is usually met by a microservice?

Options:

A.

Organized around business capabilities.

B.

Tightly coupled

C.

Highly maintainable

D.

Independently deployable

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Questions 27

(CHK_4>3) Your development team decides to create and deploy some business logic to serverless Oracle Functions. You are asked to help facilitate the monitoring, logging, and tracing of these services. Which is NOT valid about troubleshooting Oracle Functions?

Options:

A.

Oracle Functions invocation is enabled by default

B.

Oracle Functions invocation logs are enabled at the application level.

C.

Oracle Functions metrics are available at both the function and application level.

D.

Oracle Functions tracing is enabled at the function level.

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Questions 28

You are building a container image and pushing it to Oracle Cloud Infrastructure Registry (OCIR). You need to ensure that these images never get deleted from the repository. Which action should you take?

Options:

A.

Create a group and assign a policy to perform lifecycle operations on images.

B.

Write a policy to limit access to the specific repository in your compartment.

C.

Edit the tenancy global retention policy.

D.

Set global policy of image retention to "Retain All Images".

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Questions 29

In the shared responsibility model, who should perform patching, upgrading, and maintaining of the worker nodes in provisioned Oracle Container Engine for Kubernetes (OKE) clusters?

Options:

A.

Oracle Support does it.

B.

It is the responsibility of the customer.

C.

It is an automated process.

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Questions 30

Who is responsible for patching, upgrading, and maintaining the worker nodes in Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE)? (Choose the best answer.)

Options:

A.

Oracle Support

B.

It is automated

C.

The user

D.

Independent Software Vendors

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Exam Code: 1z0-1084-23
Exam Name: Oracle Cloud Infrastructure 2023 Developer Professional
Last Update: Apr 11, 2024
Questions: 100

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