1z0-1084-22 latest exam forum – Prepaway Exam Dumps

[Sep 25, 2022] Free Oracle Cloud Infrastructure 1z0-1084-22 Official Cert Guide PDF Download

Oracle 1z0-1084-22 Official Cert Guide PDF

NO.44 Which testing approaches is a must for achieving high velocity of deployments and release of cloud-native applications?

Integration testing

A/B testing

Automated testing

Penetration testing

NO.45 Which two are benefits of distributed systems?

Privacy

Security

Ease of testing

Scalability

Resiliency

distributed systems of native-cloud like functions that have a lot of benefit like Resiliency and availability Resiliency and availability refers to the ability of a system to continue operating, despite the failure or sub-optimal performance of some of its components.
In the case of Oracle Functions:
The control plane is a set of components that manages function definitions.
The data plane is a set of components that executes functions in response to invocation requests.
For resiliency and high availability, both the control plane and data plane components are distributed across different availability domains and fault domains in a region. If one of the domains ceases to be available, the components in the remaining domains take over to ensure that function definition management and execution are not disrupted.
When functions are invoked, they run in the subnets specified for the application to which the functions belong. For resiliency and high availability, best practice is to specify a regional subnet for an application (or alternatively, multiple AD-specific subnets in different availability domains). If an availability domain specified for an application ceases to be available, Oracle Functions runs functions in an alternative availability domain.
Concurrency and Scalability
Concurrency refers to the ability of a system to run multiple operations in parallel using shared resources. Scalability refers to the ability of the system to scale capacity (both up and down) to meet demand.
In the case of Functions, when a function is invoked for the first time, the function’s image is run as a container on an instance in a subnet associated with the application to which the function belongs. When the function is executing inside the container, the function can read from and write to other shared resources and services running in the same subnet (for example, Database as a Service). The function can also read from and write to other shared resources (for example, Object Storage), and other Oracle Cloud Services.
If Oracle Functions receives multiple calls to a function that is currently executing inside a running container, Oracle Functions automatically and seamlessly scales horizontally to serve all the incoming requests. Oracle Functions starts multiple Docker containers, up to the limit specified for your tenancy. The default limit is 30 GB of RAM reserved for function execution per availability domain, although you can request an increase to this limit. Provided the limit is not exceeded, there is no difference in response time (latency) between functions executing on the different containers.

NO.46 With the volume of communication that can happen between different components in cloud-native applications, it is vital to not only test functionality, but also service resiliency.
Which statement is true with regards to service resiliency?

Resiliency is about recovering from failures without downtime or data loss.

A goal of resiliency is not to bring a service to a functioning state after a failure.

Resiliency testing can be only done in a test environment.

Resiliency is about avoiding failures.

NO.47 Which is NOT a supported SDk Oracle Cloud Infrastructure (OCI)?

Go SDK

Java SDK

NET SDK

Ruby SDK

Python SDK

NO.48 You are building a container image and pushing it to the Oracle Cloud Infrastructure Registry (OCIR). You need to make sure that these get deleted from the repository.
Which action should you take?

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

Set global policy of image retention to “Retain All Images”.

In your compartment, write a policy to limit access to the specific repository.

Edit the tenancy global retention policy.

NO.49 In the sample Kubernetes manifest file below, what annotations should you add to create a private load balancer In oracle Cloud infrastructure Container Engine for Kubermetes?

A)

B)

C)

D)

Option A

Option B

Option C

Option D

NO.50 You are deploying an API via Oracle Cloud Infrastructure (OCI) API Gateway and you want to implement request policies to control access Which is NOT available in OCI API Gateway?

Limiting the number of requests sent to backend services

Enabling CORS (Cross-Origin Resource Sharing) support

Providing authentication and authorization

Controlling access to OCI resources

NO.51 How do you perform a rolling update in Kubernetes?

kubect1 rolling-update

kubect1 upgrade <deployment-name> -image=*image:v2

kubect1 update -c <container>

kubect1 rolling-update <deployment-name> -image=image

NO.52 Which pattern can help you minimize the probability of cascading failures in your system during partial loss of connectivity or a complete service failure?

Retry pattern

Anti-corruption layer pattern

Circuit breaker pattern

Compensating transaction pattern

NO.53 A programmer Is developing a Node is application which will run in a Linux server on their on-premises data center. This application will access various Oracle Cloud Infrastructure (OC1) services using OCI SDKs.
What is the secure way to access OCI services with OCI Identity and Access Management (JAM)?

Create a new OCI IAM user associated with a dynamic group and a policy that grants the desired permissions to OCI services. Add the on-premises Linux server in the dynamic group.

Create an OCI IAM policy with the appropriate permissions to access the required OCI services and assign the policy to the on-premises Linux server.

Create a new OCI IAM user, add the user to a group associated with a policy that grants the desired permissions to OCI services. In the on-premises Linux server, generate the keypair used for signing API requests and upload the public key to the IAM user.

Create a new OCI IAM user, add the user to a group associated with a policy that grants the desired permissions to OCI services. In the on-premises Linux server, add the user name and password to a file used by Node.js authentication.

NO.54 How can you find details of the tolerations field for the sample YAML file below?

kubectl list pod.spec.tolerations

kubectl explain pod.spec.tolerations

kubectl describe pod.spec tolerations

kubectl get pod.spec.tolerations

NO.55 Which one of the following is NOT a valid backend-type supported by Oracle Cloud Infrastructure (OCI) API Gateway?

STOCK_RESPONSE_BACKEND

ORACLE_FUNCTIONS_BACKEND

ORACLE_STREAMS_BACKEND

HTTP_BACKEND

NO.56 What is the minimum of storage that a persistent volume claim can obtain in Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE)?

50 GB

10 GB

1 GB

1 TB

NO.57 In order to effectively test your cloud-native applications, you might utilize separate environments (development, testing, staging, production, etc.). Which Oracle Cloud Infrastructure (OC1) service can you use to create and manage your infrastructure?

OCI Compute

OCI Container Engine for Kubernetes

OCI Resource Manager

OCI API Gateway

NO.58 Which concepthe following steps reference Console instructionsCloud Infrastructure Resource Manager?

Job

Stack

Queue

Plan

https://docs.cloud.oracle.com/en-us/iaas/Content/ResourceManager/Concepts/resourcemanager.htm Following are brief descriptions of key concepts and the main components of Resource Manager.
CONFIGURATION
Information to codify your infrastructure. A Terraform configuration can be either a solution or a file that you write and upload.
JOB
Instructions to perform the actions defined in your configuration. Only one job at a time can run on a given stack; further, you can have only one set of Oracle Cloud Infrastructure resources on a given stack. To provision a different set of resources, you must create a separate stack and use a different configuration.
Resource Manager provides the following job types:
Plan: Parses your Terraform configuration and creates an execution plan for the associated stack. The execution plan lists the sequence of specific actions planned to provision your Oracle Cloud Infrastructure resources. The execution plan is handed off to the apply job, which then executes the instructions.
Apply. Applies the execution plan to the associated stack to create (or modify) your Oracle Cloud Infrastructure resources. Depending on the number and type of resources specified, a given apply job can take some time. You can check status while the job runs.
Destroy. Releases resources associated with a stack. Released resources are not deleted. For example, terminates a Compute instance controlled by a stack. The stack’s job history and state remain after running a destroy job. You can monitor the status and review the results of a destroy job by inspecting the stack’s log files.
Import State. Sets the provided Terraform state file as the current state of the stack. Use this job to migrate local Terraform environments to Resource Manager.
STACK
The collection of Oracle Cloud Infrastructure resources corresponding to a given Terraform configuration. Each stack resides in the compartment you specify, in a single region; however, resources on a given stack can be deployed across multiple regions. An OCID is assigned to each stack.
the following steps reference Console instructions
Create a Terraform configuration.
Create a stack.
Run a plan job, which produces an execution plan.
Review the execution plan.
If changes are needed in the execution plan, update the configuration and run a plan job again.
Run an apply job to provision resources.
Review state file and log files, as needed.
You can optionally reapply your configuration, with or without making changes, by running an apply job again.
Optionally, to release the resources running on a stack, run a destroy job.

NO.59 You are developing a polyglot serverless application using Oracle Functions. Which language cannot be used to write your function code?

PL/SQL

Python

Node.js

Java

NO.60 A service you are deploying to Oracle infrastructure (OCI) Container En9ine for Kubernetes (OKE) uses a docker image from a private repository Which configuration is necessary to provide access to this repository from OKE?

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

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

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

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

Pulling Images from Registry during Deployment
During the deployment of an application to a Kubernetes cluster, you’ll typically want one or more images to be pulled from a Docker registry. In the application’s manifest file you specify the images to pull, the registry to pull them from, and the credentials to use when pulling the images. The manifest file is commonly also referred to as a pod spec, or as a deployment.yaml file (although other filenames are allowed).
If you want the application to pull images that reside in Oracle Cloud Infrastructure Registry, you have to perform two steps:
– You have to use kubectl to create a Docker registry secret. The secret contains the Oracle Cloud Infrastructure credentials to use when pulling the image. When creating secrets, Oracle strongly recommends you use the latest version of kubectl To create a Docker registry secret:
1- If you haven’t already done so, follow the steps to set up the cluster’s kubeconfig configuration file and (if necessary) set the KUBECONFIG environment variable to point to the file. Note that you must set up your own kubeconfig file. You cannot access a cluster using a kubeconfig file that a different user set up.
2- In a terminal window, enter:
$ kubectl create secret docker-registry <secret-name> –docker-server=<region-key>.ocir.io –docker-username='<tenancy-namespace>/<oci-username>’ –docker-password='<oci-auth-token>’ –docker-email='<email-address>’ where:
<secret-name> is a name of your choice, that you will use in the manifest file to refer to the secret . For example, ocirsecret
<region-key> is the key for the Oracle Cloud Infrastructure Registry region you’re using. For example, iad. See Availability by Region.
ocir.io is the Oracle Cloud Infrastructure Registry name.
<tenancy-namespace> is the auto-generated Object Storage namespace string of the tenancy containing the repository from which the application is to pull the image (as shown on the Tenancy Information page). For example, the namespace of the acme-dev tenancy might be ansh81vru1zp. Note that for some older tenancies, the namespace string might be the same as the tenancy name in all lower-case letters (for example, acme-dev).
<oci-username> is the username to use when pulling the image. The username must have access to the tenancy specified by <tenancy-name>. For example, [email protected] . If your tenancy is federated with Oracle Identity Cloud Service, use the format oracleidentitycloudservice/<username>
<oci-auth-token> is the auth token of the user specified by <oci-username>. For example, k]j64r{1sJSSF-;)K8
<email-address> is an email address. An email address is required, but it doesn’t matter what you specify. For example, [email protected]
– You have to specify the image to pull from Oracle Cloud Infrastructure Registry, including the repository location and the Docker registry secret to use, in the application’s manifest file.
References:
https://docs.cloud.oracle.com/en-us/iaas/Content/Registry/Tasks/registrypullingimagesfromocir.htm

NO.61 What is one of the differences between a microservice and a serverless function?

Microservices are used for long running operations and serverless functions for short running operations.

Microservices always use a data store and serverless functions never use a data store.

Microservices are stateless and serverless functions are stateful.

Microservices are triggered by events and serverless functions are not.

NO.62 You are a consumer of Oracle Cloud Infrastructure (OCI) Streaming service. Which API should you use to read and process the stream?

ListMessages

GetMessages

GetObject

ReadMessages

NO.63 Which two statements accurately describe an Oracle Functions application?

A small block of code invoked in response to an Oracle Cloud Infrastructure (OCI) Events service

A Docker image containing all the functions that share the same configuration

An application based on Oracle Functions, Oracle Cloud Infrastructure (OCI) Events and OCI API Gateway services

A common context to store configuration variables that are available to all functions in the application

A logical group of functions

NO.64 Which is NOT a valid option to execute a function deployed on Oracle Functions?

Send a signed HTTP requests to the function’s invoke endpoint

Invoke from Oracle Cloud Infrastructure CLI

Invoke from Docker CLI

Trigger by an event in Oracle Cloud Infrastructure Events service

Invoke from Fn Project CLI

NO.65 You created a pod called “nginx” and its state is set to Pending.
Which command can you run to see the reason why the “nginx” pod is in the pending state?

kubect2 logs pod nginx

kubect2 describe pod nginx

kubect2 get pod nginx

Through the Oracle Cloud Infrastructure Console

NO.66 You are developing a serverless application with Oracle Functions and Oracle Cloud Infrastructure Object Storage- Your function needs to read a JSON file object from an Object Storage bucket named “input-bucket” in compartment “qa-compartment”. Your corporate security standards mandate the use of Resource Principals for this use case.
Which two statements are needed to implement this use case?

Set up a policy with the following statement to grant read access to the bucket:
allow dynamic-group read-file-dg to read objects in compartment qa-compartment where target .bucket .name=’ input-bucket *

Set up the following dynamic group for your function’s OCID: Name: read-file-dg Rule: resource . id = ‘ ocid1. f nf unc. ocl -phx. aaaaaaaakeaobctakezj z5i4uj j 7g25q7sx5mvr55pms6f 4da !

Set up a policy to grant all functions read access to the bucket:
allow all functions in compartment qa-compartment to read objects in target.bucket.name=’input-bucket’

Set up a policy to grant your user account read access to the bucket:
allow user XYZ to read objects in compartment qa-compartment where target .bucket, name-‘input-bucket’

No policies are needed. By default, every function has read access to Object Storage buckets in the tenancy

Oracle 1z0-1084-22 Exam Syllabus Topics:

Topic	Details
Topic 1	Use OCI Logging service to enable, manage, and search logs Testing and Securing Cloud Native Applications
Topic 2	Utilize OCI Monitoring service to view metrics Explain the fundamentals of cloud native and discuss the key pillars of cloud native development
Topic 3	Explain cloud native testing and discuss measures for testing cloud native applications Develop Serverless Application with Oracle Functions
Topic 4	Build event-driven serverless applications using OCI event service Explain DevOps and discuss the role of container orchestration
Topic 5	Monitoring & Troubleshooting Cloud Native Applications Perform Tasks around Monitoring, Logging, and Tracing
Topic 6	Create integration between systems using OCI streaming service Explain the microservices architecture and discuss the design methodology of microservices

Free 1z0-1084-22 Exam Dumps to Improve Exam Score: https://www.prepawayexam.com/Oracle/braindumps.1z0-1084-22.ete.file.html

Prepaway Exam Dumps

Tag: 1z0-1084-22 latest exam forum

[Sep 25, 2022] Free Oracle Cloud Infrastructure 1z0-1084-22 Official Cert Guide PDF Download [Q44-Q66]

Oracle 1z0-1084-22 Exam Syllabus Topics:

Tag Archives: 1z0-1084-22 latest exam forum

Oracle 1z0-1084-22 Exam Syllabus Topics: