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NEW QUESTION 20
Which is NOT a valid option to execute a function deployed on Oracle Functions?

  • A. Send a signed HTTP requests to the function’s invoke endpoint
  • B. Invoke from Fn Project CLI
  • C. Invoke from Oracle Cloud Infrastructure CLI
  • D. Trigger by an event in Oracle Cloud Infrastructure Events service
  • E. Invoke from Docker CLI

Answer: E

Explanation:
You can invoke a function that you’ve deployed to Oracle Functions in different ways:
Using the Fn Project CLI.
Using the Oracle Cloud Infrastructure CLI.
Using the Oracle Cloud Infrastructure SDKs.
Making a signed HTTP request to the function’s invoke endpoint. Every function has an invoke endpoint.
Each of the above invokes the function via requests to the API. Any request to the API must be authenticated by including a signature and the OCID of the compartment to which the function belongs in the request header. Such a request is referred to as a ‘signed’ request. The signature includes Oracle Cloud Infrastructure credentials in an encrypted form.

 

NEW QUESTION 21
As a cloud-native developer, you are designing an application that depends on Oracle Cloud Infrastructure (OCI) Object Storage wherever the application is running. Therefore, provisioning of storage buckets should be part of your Kubernetes deployment process for the application. Which should you leverage to meet this requirement?

  • A. Oracle Functions
  • B. OCI Container Engine for Kubernetes
  • C. Open Service Broker API
  • D. OCI Service Broker for Kubernetes

Answer: D

Explanation:
Adding OCI Service Broker for Kubernetes to Clusters:
Service brokers offer a catalog of backing services to workloads running on cloud native platforms. The Open Service Broker API is a commonly-used standard for interactions between service brokers and platforms. The Open Service Broker API specification describes a simple set of API endpoints that platforms use to provision, gain access to, and manage service offerings. For more information about the Open Service Broker API, see resources available online including those at openservicebrokerapi.org.
OCI Service Broker for Kubernetes is an implementation of the Open Service Broker API. OCI Service Broker for Kubernetes is specifically for interacting with Oracle Cloud Infrastructure services from Kubernetes clusters. It includes three service broker adapters to bind to the following Oracle Cloud Infrastructure services:
-Object Storage
-Autonomous Transaction Processing
-Autonomous Data Warehouse
References:
https://docs.cloud.oracle.com/en-us/iaas/Content/ContEng/Tasks/contengaddingservicebrokers.htm

 

NEW QUESTION 22
Which concepthe following steps reference Console instructionsCloud Infrastructure Resource Manager?

  • A. Queue
  • B. Stack
  • C. Plan
  • D. Job

Answer: A

Explanation:
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.

 

NEW QUESTION 23
You are developing a serverless application with Oracle Functions. Your function needs to store state in a database. Your corporate security Standards mandate encryption of secret information like database passwords.
As a function developer, which approach should you follow to satisfy this security requirement?

  • A. Use Oracle Cloud Infrastructure Key Management to auto-encrypt the password. It will inject the auto-decrypted password inside your function container.
  • B. Use the Oracle Cloud Infrastructure Console and enter the password in the function configuration section in the provided input field.
  • C. Encrypt the password using Oracle Cloud Infrastructure Key Management. Decrypt this password in your function code with the generated key.
  • D. All function configuration variables are automatically encrypted by Oracle Functions.

Answer: C

Explanation:
Oracle Functions: Using Key Management To Encrypt And Decrypt Configuration Variables Since this process involves multiple steps, I thought it would be helpful to give you an outline of the steps that we’re going to take:
Create a KMS vault
Create a Master Encryption Key
Generate a Data Encryption Key (DEK) from the Master Encryption Key
Use the DEK plaintext return value to encrypt the sensitive value (offline) Store the encrypted sensitive value as a config variable in the serverless application Store the DEK ciphertext and the initVector used to encrypt the sensitive value as Function config variables Within the function, decrypt the DEK ciphertext back into plaintext using the OCID and Cryptographic Endpoint by invoking the OCI KMS SDK Decrypt the sensitive value using the decrypted DEK plaintext and the initVector


References:
https://blogs.oracle.com/developers/oracle-functions-using-key-management-to-encrypt-and-decrypt-configuration-variables
https://docs.oracle.com/en/database/other-databases/essbase/19.3/essad/encrypt-values-using-kms.html

 

NEW QUESTION 24
Which testing approaches is a must for achieving high velocity of deployments and release of cloud-native applications?

  • A. A/B testing
  • B. Integration testing
  • C. Automated testing
  • D. Penetration testing

Answer: C

Explanation:
Oracle Cloud Infrastructure provides a number of DevOps tools and plug-ins for working with Oracle Cloud Infrastructure services. These can simplify provisioning and managing infrastructure or enable automated testing and continuous delivery.
A/B Testing
While A/B testing can be combined with either canary or blue-green deployments, it is a very different thing. A/B testing really targets testing the usage behavior of a service or feature and is typically used to validate a hypothesis or to measure two versions of a service or feature and how they stack up against each other in terms of performance, discoverability and usability. A/B testing often leverages feature flags (feature toggles), which allow you to dynamically turn features on and off.
Integration Testing
Integration tests are also known as end-to-end (e2e) tests. These are long-running tests that exercise the system in the way it is intended to be used in production. These are the most valuable tests in demonstrating reliability and thus increasing confidence.
Penetration Testing
Oracle regularly performs penetration and vulnerability testing and security assessments against the Oracle cloud infrastructure, platforms, and applications. These tests are intended to validate and improve the overall security of Oracle Cloud Services.
References:
https://docs.cloud.oracle.com/en-us/iaas/Content/API/Concepts/devopstools.htm

 

NEW QUESTION 25
……