1Z0-1084-20 Online Practice Questions and Answers

Correct Answer: B

this pattern isolates an operation that makes calls to multiple back-end microservices, centralizing its logic into a specialized microservice.

Correct Answer: D

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.

Correct Answer: B

Having deployed the authorizer function, you enable authentication and authorization for an API deployment by including two different kinds of request policy in the API deployment specification: An authentication request policy for the entire API deployment that specifies:The OCID of the authorizer function that you deployed to Oracle Functions that will perform authentication and authorization.The request attributes to pass to the authorizer function.Whether unauthenticated callers can access routes in the API deployment. An authorization request policy for each route that specifies the operations a caller is allowed to perform, based on the caller's access scopes as returned by the authorizer function. Using the Console to Add Authentication and Authorization Request Policies To add authentication and authorization request policies to an API deployment specification using the Console: Create or update an API deployment using the Console, select the From Scratch option, and enter details on the Basic Information page. For more information, see Deploying an API on an API Gateway by Creating an API Deployment and Updating API Gateways and API Deployments. In the API Request Policies section of the Basic Information page, click the Add button beside Authentication and specify: Application in : The name of the application in Oracle Functions that contains the authorizer function. You can select an application from a different compartment. Function Name: The name of the authorizer function in Oracle Functions. Authentication Token: Whether the access token is contained in a request header or a query parameter. Authentication Token Value: Depending on whether the access token is contained in a request header or a query parameter, specify:

Header Name: If the access token is contained in a request header, enter the name of the header. Parameter Name: If the access token is contained in a query parameter, enter the name of the query parameter. https://docs.cloud.oracle.com/en-us/iaas/Content/APIGateway/Tasks/apigatewayaddingauthzauthn.htm

Correct Answer: A

https://docs.oracle.com/en/cloud/iaas/wercker-cloud/wercm/quickstarts/platforms/kubernetes/

Correct Answer: C

Before using Oracle Functions, you have to set up an Oracle Cloud Infrastructure API signing key. The instructions in this topic assume:

-you are using Linux

- you are following Oracle's recommendation to provide a passphrase to encrypt the private key For more Detials Set up an Oracle Cloud Infrastructure API Signing Key for Use with Oracle Functions

https://docs.cloud.oracle.com/en-us/iaas/Content/Functions/Tasks/functionssetupapikey.htm

Correct Answer: A

"type": "STOCK_RESPONSE_BACKEND" indicates that the API gateway itself will act as the back end and return the stock response you define (the status code, the header fields and the body content). https://docs.cloud.oracle.com/en-us/iaas/Content/APIGateway/Tasks/ apigatewayaddingstockresponses.htm

Correct Answer: D

Resource Manager is an Oracle Cloud Infrastructure service that allows you to automate the process of provisioning your Oracle Cloud Infrastructure resources. Using Terraform, Resource Manager helps you install, configure, and manage resources through the "infrastructure-as-code" model. With Resource Manager, you can use Terraform's remote exec functionality to execute scripts or commands on a remote computer. You can also use this technique for other provisioners that require access to the remote resource.

Correct Answer: C

Canary deployments are a pattern for rolling out releases to a subset of users or servers. The idea is to first deploy the change to a small subset of servers, test it, and then roll the change out to the rest of the servers. The canary deployment serves as an early warning indicator with less impact on downtime: if the canary deployment fails, the rest of the servers aren't impacted. Blue-green deployment is a technique that reduces downtime and risk by running two identical production environments called Blue and Green. At any time, only one of the environments is live, with the live environment serving all production traffic. For this example, Blue is currently live and Green is idle. A/B testing is a way to compare two versions of a single variable, typically by testing a subject's response to variant A against variant B, and determining which of the two variants is more effective A rolling update offers a way to deploy the new version of your application gradually across your cluster.

Correct Answer: C

In the API Gateway service, a back end is the means by which a gateway routes requests to the back- end services that implement APIs. If you add a private endpoint back end to an API gateway, you give the API gateway access to the VCN associated with that private endpoint. You can also grant an API gateway access to other Oracle Cloud Infrastructure services as back ends. For example, you could grant an API gateway access to Oracle Functions, so you can create and deploy an API that is backed by a serverless function. API Gateway service to create an API gateway, you can create an API deployment to access HTTP and HTTPS URLs. https://docs.cloud.oracle.com/en-us/iaas/Content/APIGateway/Tasks/ apigatewayusinghttpbackend.htm API Gateway service to create an API gateway, you can create an API deployment that invokes serverless functions defined in Oracle Functions. https://docs.cloud.oracle.com/en-us/iaas/Content/APIGateway/Tasks/ apigatewayusingfunctionsbackend.htm API Gateway service, you can define a path to a stock response back end https://docs.cloud.oracle.com/en-us/iaas/Content/ APIGateway/Tasks/ apigatewayaddingstockresponses.htm

Correct Answer: C

https://www.oracle.com/webfolder/technetwork/tutorials/FAQs/oci/Functions-FAQ.pdf Oracle Functions is a fully managed, multi-tenant, highly scalable, on-demand, Functions-as-a- Service platform. It is built on enterprise-grade Oracle Cloud Infrastructure and powered by the Fn Project open source engine. Use Oracle Functions (sometimes abbreviated to just Functions) when you want to focus on writing code to meet business needs.