Oracle 1Z0-1084-22 Online Practice Questions and Exam Preparation

Oracle 1Z0-1084-22 Online Questions & Answers

• Question 51:

  Which two are characteristics of microservices?

  A. Microservices are hard to test in isolation.
  B. Microservices can be independently deployed.
  C. All microservices share a data store.
  D. Microservices can be implemented in limited number of programming languages.
  E. Microservices communicate over lightweight APIs.
  B. Microservices can be independently deployed.
  E. Microservices communicate over lightweight APIs.

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  Explanation/Reference:

  https://www.techjini.com/blog/microservices/

• Question 52:

  What are two of the main reasons you would choose to implement a serverless architecture?

  A. No need for integration testing
  B. Reduced operational cost
  C. Improved In-function state management
  D. Automatic horizontal scaling
  E. Easier to run long-running operations
  B. Reduced operational cost
  D. Automatic horizontal scaling

• Question 53:

  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 the Oracle Cloud Infrastructure Console and enter the password in the function configuration section in the provided input field.
  B. Use Oracle Cloud Infrastructure Key Management to auto-encrypt the password. It will inject the auto-decrypted password inside your function container.
  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.
  A. Use the Oracle Cloud Infrastructure Console and enter the password in the function configuration section in the provided input field.

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  Explanation/Reference:

  Passing Custom Configuration Parameters to Functions

  he code in functions you deploy to Oracle Functions will typically require values for different parameters. Some pre-defined parameters are available to your functions as environment variables. But you'll often want your functions to use

  parameters that you've defined yourself. For example, you might create a function that reads from and writes to a database. The function will require a database connect string, comprising a username, password, and hostname. You'll

  probably want to define username, password, and hostname as parameters that are passed to the function when it's invoked.

  Using the Console

  To specify custom configuration parameters to pass to functions using the Console:

  Log in to the Console as a functions developer.

  In the Console, open the navigation menu. Under Solutions and Platform, go to Developer Services and click Functions.

  Select the region you are using with Oracle Functions. Oracle recommends that you use the same region as the Docker registry that's specified in the Fn Project CLI context (see 6. Create an Fn Project CLI Context to Connect to Oracle

  Cloud Infrastructure). Select the compartment specified in the Fn Project CLI context (see 6. Create an Fn Project CLI Context to Connect to Oracle Cloud Infrastructure). The Applications page shows the applications defined in the

  compartment. Click the name of the application containing functions to which you want to pass custom configuration parameters:

  To pass one or more custom configuration parameters to every function in the application, click Configuration to see the Configuration section for the application. To pass one or more custom configuration parameters to a particular function,

  click the function's name to see the Configuration section for the function. In the Configuration section, specify details for the first custom configuration parameter:

  Key: The name of the custom configuration parameter. The name must only contain alphanumeric characters and underscores, and must not start with a number. For example, username Value: A value for the custom configuration parameter.

  The value must only contain printable unicode characters. For example, jdoe

  Click the plus button to save the new custom configuration parameter. Oracle Functions combines the key-value pairs for all the custom configuration parameters (both application-wide and function-specific) in the application into a single,

  serially-encoded configuration object with a maximum allowable size of 4Kb. You cannot save the new custom configuration parameter if the size of the serially-encoded configuration object would be greater than 4Kb. (Optional) Enter

  additional custom configuration parameters as required.

• Question 54:

  How can you find details of the tolerations field for the sample YAML file below?

  

  A. kubectl list pod.spec.tolerations
  B. kubectl explain pod.spec.tolerations
  C. kubectl describe pod.spec tolerations
  D. kubectl get pod.spec.tolerations
  B. kubectl explain pod.spec.tolerations

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  Explanation/Reference:

  kubectl explain to List the fields for supported resources

  https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#explain

• Question 55:

  You have a containerized app that requires an Autonomous Transaction Processing (ATP) Database. Which option is not valid for o from a container in Kubernetes?

  A. Enable Oracle REST Data Services for the required schemas and connect via HTTPS.
  B. Create a Kubernetes secret with contents from the instance Wallet files. Use this secret to create a volume mounted to the appropriate path in the application deployment manifest.
  C. Use Kubernetes secrets to configure environment variables on the container with ATP instance OCID, and OCI API credentials. Then use the CreateConnection API endpoint from the service runtime.
  D. Install the Oracle Cloud Infrastructure Service Broker on the Kubernetes cluster and deploy serviceinstance and serviceBinding resources for ATP. Then use the specified binding name as a volume in the application deployment manifest.
  A. Enable Oracle REST Data Services for the required schemas and connect via HTTPS.

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  Explanation/Reference:

  https://blogs.oracle.com/developers/creating-an-atp-instance-with-the-oci-service-broker https://blogs.oracle.com/cloud-infrastructure/integrating-oci-service-broker-with-autonomous- transaction-processing-in-the-real-world

• Question 56:

  Which statement accurately describes Oracle Cloud Infrastructure (OCI) Load Balancer integration with OCI Container Engine for Kubernetes (OKE)?

  A. OKE service provisions an OCI Load Balancer instance for each Kubernetes service with LoadBalancer type in the YAML configuration.
  B. OCI Load Balancer instance provisioning is triggered by OCI Events service for each Kubernetes service with LoadBalancer type in the YAML configuration.
  C. OCI Load Balancer instance must be manually provisioned for each Kubernetes service that requires traffic balancing.
  D. OKE service provisions a single OCI Load Balancer instance shared with all the Kubernetes services with LoadBalancer type in the YAML configuration.
  D. OKE service provisions a single OCI Load Balancer instance shared with all the Kubernetes services with LoadBalancer type in the YAML configuration.

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  Explanation/Reference:

  If you are running your Kubernetes cluster on Oracle Container Engine for Kubernetes (commonly known as OKE), you can have OCI automatically provision load balancers for you by creating a Service of type LoadBalancer instead of (or in addition to) installing an ingress controller like Traefik or Voyage YAML file

  

  When you apply this YAML file to your cluster, you will see the new service is created. After a short time (typically less than a minute) the OCI Load Balancer will be provisioned.

  

  https://oracle.github.io/weblogic-kubernetes-operator/faq/oci-lb/

• Question 57:

  You want to push a new image in the Oracle Cloud Infrastructure (OCI) Registry. Which two actions do you need to perform?

  A. Assign a tag via Docker CLI to the image.
  B. Generate an auth token to complete the authentication via Docker CLI.
  C. Generate an API signing key to complete the authentication via Docker CLI.
  D. Assign an OCI defined tag via OCI CLI to the image.
  E. Generate an OCI tag namespace in your repository.
  A. Assign a tag via Docker CLI to the image.
  B. Generate an auth token to complete the authentication via Docker CLI.

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  Explanation/Reference:

  You use the Docker CLI to push images to Oracle Cloud Infrastructure Registry. To push an image, you first use the docker tag command to create a copy of the local source image as a new image (the new image is actually just a reference to the existing source image). As a name for the new image, you specify the fully qualified path to the target location in Oracle Cloud Registry where you want to push the image, optionally including the name of a repository. for more details check the below link

  https://docs.cloud.oracle.com/en-us/iaas/Content/Registry/Tasks/registrypushingimagesusingthedockercli.htm

• Question 58:

  Which two are required to enable Oracle Cloud Infrastructure (OCI) Container Engine for Kubernetes (OKE) cluster access from the kubect1 CLI?

  A. An SSH key pair with the public key added to cluster worker nodes
  B. Install and configure the OCI CLI
  C. OCI Identity and Access Management Auth Token
  D. Tiller enabled on the OKE cluster
  E. A configured OCI API signing key pair
  B. Install and configure the OCI CLI
  E. A configured OCI API signing key pair

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  Explanation/Reference:

  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

• Question 59:

  You are implementing logging in your services that will be running in Oracle Cloud Infrastructure Container Engine for Kubernetes. Which statement describes the appropriate logging approach?

  A. Each service logs to its own log file.
  B. All services log to an external logging system.
  C. All services log to standard output only.
  D. All services log to a shared log file.
  C. All services log to standard output only.

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  Explanation/Reference:

  Application and systems logs can help you understand what is happening inside your cluster. The logs are particularly useful for debugging problems and monitoring cluster activity. Most modern applications have some kind of logging mechanism; as such, most container engines are likewise designed to support some kind of logging. The easiest and most embraced logging method for containerized applications is to write to the standard output and standard error streams.

  https://kubernetes.io/docs/concepts/cluster-administration/logging/ https://blogs.oracle.com/developers/5-best-practices-for-kubernetes-security

• Question 60:

  Given a service deployed on Oracle Cloud Infrastructure Container Engine far Kubernetes (OKE), which annotation should you add in the sample manifest file below to specify a 400 Mbps load balancer?

  

  A. service.beta.kubernetes.io/oci-load-balancer-value: 400Mbps
  B. service.beta.kubernetes.io/oci-load-balancer-size: 400Mbps
  C. service.beta.kubernetes.io/oci-load--balancer-shape: 4 00Mbps
  D. service, beta, kubernetes . io/oci-load--balancer-kind: 400Mbps
  C. service.beta.kubernetes.io/oci-load--balancer-shape: 4 00Mbps