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NEW QUESTION 32
You are developing a polyglot serverless application using Oracle Functions. Which language cannot be used to write your function code?

  • A. Python
  • B. PL/SQL
  • C. Node.js
  • D. Java

Answer: B

Explanation:
Overview of Functions:
The serverless and elastic architecture of Oracle Functions means there's no infrastructure administration or software administration for you to perform. You don't provision or maintain compute instances, and operating system software patches and upgrades are applied automatically. Oracle Functions simply ensures your app is highly-available, scalable, secure, and monitored. With Oracle Functions, you can write code in Java, Python, Node, Go, and Ruby (and for advanced use cases, bring your own Dockerfile, and Graal VM). You can then deploy your code, call it directly or trigger it in response to events, and get billed only for the resources consumed during the execution.
References:
https://docs.cloud.oracle.com/en-us/iaas/Content/Functions/Concepts/functionsoverview.htm

 

NEW QUESTION 33
As a cloud-native developer, you have written a web service for your company. You have used Oracle Cloud Infrastructure (OCI) API Gateway service to expose the HTTP backend. However, your security team has suggested that your web service should handle Distributed Denial-of-Service (DDoS) attack. You are time-constrained and you need to make sure that this is implemented as soon as possible.
What should you do in this scenario?

  • A. Use OCI virtual cloud network (VCN) segregation to control DDoS.
  • B. Use a third party service integration to implement a DDoS attack mitigation,
  • C. Use OCI API Gateway service and configure rate limiting.
  • D. Re-write your web service and implement rate limiting.

Answer: C

Explanation:
Having created an API gateway and deployed one or more APIs on it, you'll typically want to limit the rate at which front-end clients can make requests to back-end services. For example, to:
- maintain high availability and fair use of resources by protecting back ends from being overwhelmed by too many requests
- prevent denial-of-service attacks
- constrain costs of resource consumption
- restrict usage of APIs by your customers' users in order to monetize APIs You apply a rate limit globally to all routes in an API deployment specification.
If a request is denied because the rate limit has been exceeded, the response header specifies when the request can be retried.
You can add a rate-limiting request policy to an API deployment specification by:
using the Console
editing a JSON file
{
"requestPolicies": {
"rateLimiting": {
"rateKey": "CLIENT_IP",
"rateInRequestsPerSecond": 10
}
},
"routes": [
{
"path": "/hello",
"methods": ["GET"],
"backend": {
"type": "ORACLE_FUNCTIONS_BACKEND",
"functionId": "ocid1.fnfunc.oc1.phx.aaaaaaaaab______xmq"
}
}
]
}
https://docs.cloud.oracle.com/en-us/iaas/Content/APIGateway/Tasks/apigatewaylimitingbackendaccess.htm

 

NEW QUESTION 34
You are working on a serverless DevSecOps application using Oracle Functions. You have deployed a Python function that uses the Oracle Cloud Infrastructure (OCI) Python SDK to stop any OC1 Compute instance that does not comply with your corporate security standards There are 3 non compliant OCI Compute instances.
However, when you invoke this function none of the instances were stopped. How should you troubleshoot this?

  • A. There is no way to troubleshoot a function running on Oracle Functions.
  • B. Enable function tracing in the OCI console, and go to OCI Monitoring console to see the function stack trace.
  • C. Enable function logging in the OCI console, include some print statements in your function code and use logs to troubleshoot this.
  • D. Enable function remote debugging in the OCI console, and use your favorite IDE to inspect the function running on Oracle Functions.

Answer: C

Explanation:
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 can specify that Oracle Functions:
Stores logs in Oracle Cloud Infrastructure. Until an Oracle Cloud Infrastructure logging service is released, Oracle Functions stores logs as files in a storage bucket in Oracle Cloud Infrastructure Object Storage.
Note that to view function logs in a storage bucket, the group to which you belong must have been granted access with the following identity policy statements:
Allow group <group-name> to manage object-family in compartment <compartment-name> Allow group <group-name> to read objectstorage-namespaces in compartment <compartment-name> (Usually created when configuring your tenancy for function development. See Create a Policy to Give Oracle Functions Users Access to Oracle Cloud Infrastructure Registry Repositories.) Stores logs by exporting them to an external logging destination like Papertrail. Note that to use an external logging destination, you must have set up a VCN with public subnets and an internet gateway (see Create the VCN and Subnets to Use with Oracle Functions, if they don't exist already).
You set application logging policies in the Console.
References:
https://docs.cloud.oracle.com/en-us/iaas/Content/Functions/Tasks/functionsexportingfunctionlogfiles.htm

 

NEW QUESTION 35
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?

  • A. 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 *
  • B. 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'
  • C. 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'
  • D. 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 !
  • E. No policies are needed. By default, every function has read access to Object Storage buckets in the tenancy

Answer: A,D

Explanation:
When a function you've deployed to Oracle Functions is running, it can access other Oracle Cloud Infrastructure resources. For example:
- You might want a function to get a list of VCNs from the Networking service.
- You might want a function to read data from an Object Storage bucket, perform some operation on the data, and then write the modified data back to the Object Storage bucket.
To enable a function to access another Oracle Cloud Infrastructure resource, you have to include the function in a dynamic group, and then create a policy to grant the dynamic group access to that resource.
https://docs.cloud.oracle.com/en-us/iaas/Content/Functions/Tasks/functionsaccessingociresources.htm

 

NEW QUESTION 36
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