1Z0-1084-21 Online Practice Questions and Answers

Correct Answer: B

check the steps for Creating, Deploying, and Invoking a Helloworld Function https://docs.cloud.oracle.com/ en-us/iaas/Content/Functions/Tasks/functionscreatingfirst.htm in step 7 that will deploy the funcation 7Enter the following single Fn Project command to build the function and its dependencies as a Docker image called helloworld-func, push the image to the specified Docker registry, and deploy the function to Oracle Functions in the helloworld-app: $ fn -v deploy --app helloworld-app The -v option simply shows more detail about what Fn Project commands are doing (see Using the Fn Project CLI with Oracle Functions).

Correct Answer: B

Storing and Viewing Function Logs When a function you've deployed to Oracle Functions is invoked, you'll typically want to store the function's logs so that you can review them later. You specify where Oracle Functions stores a function's logs by setting a logging policy for the application containing the function. You set application logging policies in the Console. Whenever a function is invoked in this application, its logs are stored according to the logging policy that you specified. you can view the logs for a function that have been stored in a storage bucket in Oracle Cloud Infrastructure Object Storage https://docs.cloud.oracle.com/en-us/iaas/Content/Functions/Tasks/functionsexportingfunctionlogfiles.htm

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: A

microservice is larger and can do more than a function. A function is a relatively small bit of code that performs only one action in response to an event. In many cases, microservices can be decomposed into a number of smaller stateless functions. The difference between microservices and functions is not simply the size. Functions are stateless, and they require no knowledge about or configuration of the underlying server--hence, the term serverless. https://developer.oracle.com/java/fn-project-introduction.html

Correct Answer: C

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.

Correct Answer: D

Oracle Cloud Infrastructure Web Application Firewall (WAF) is a cloud-based, Payment Card Industry (PCI) compliant, global security service that protects applications from malicious and unwanted internet traffic. WAF can protect any internet facing endpoint, providing consistent rule enforcement across a customer's applications. WAF provides you with the ability to create and manage rules for internet threats including Cross- Site Scripting (XSS), SQL Injection and other OWASP-defined vulnerabilities. Unwanted bots can be mitigated while tactically allowed desirable bots to enter. Access rules can limit based on geography or the signature of the request.

Correct Answer: BE

Setting Up Local Access to Clusters To set up a kubeconfig file to enable access to a cluster using a local installation of kubectl and the Kubernetes Dashboard: Step 1: Generate an API signing key pair Step 2: Upload the public key of the API signing key pair Step 3: Install and configure the Oracle Cloud Infrastructure CLI Step 4: Set up the kubeconfig file Step 5: Verify that kubectl can access the cluster

Correct Answer: C

The shape of an Oracle Cloud Infrastructure load balancer specifies its maximum total bandwidth (that is,

ingress plus egress). By default, load balancers are created with a shape of 100Mbps. Other shapes are

available, including 400Mbps and 8000Mbps.

To specify an alternative shape for a load balancer, add the following annotation in the metadata section of

the manifest file:

service.beta.kubernetes.io/oci-load-balancer-shape: where value is the bandwidth of the shape

(for example, 100Mbps, 400Mbps, 8000Mbps).

For example:

apiVersion: v1

kind: Service

metadata:

name: my-nginx-svc

labels:

app: nginx

annotations:

service.beta.kubernetes.io/oci-load-balancer-shape: 400Mbps spec:

type: LoadBalancer

ports:

-port: 80 selector: app: nginx https://github.com/oracle/oci-cloud-controller-manager/blob/master/docs/load-balancer-annotations.md

Correct Answer: B

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. https://docs.cloudfoundry.org/devguide/deploy-apps/blue-green.html 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. ... Canaries were once regularly used in coal mining as an early warning system. https://octopus.com/docs/deployment-patterns/canary-deployments

Correct Answer: C