OPA

Overview

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Overview

OPA (Open Policy Agent) is an open-source project that uses a single policy language and a policy engine that can be used to resolve policy issues and authorization problems at the layer of cloud-native stack. It is a way of declaratively writing policies as code and then using those policies in the decision-making process.

It uses a purpose-built declarative language, Rego, to express complex logic over complex hierarchical data structures. OPA has over 50 integrations and can enforce policies in Terraform, microservices, Kubernetes and many more.

Take this assessment to know how good you are with Open Policy Agent (OPA).

Click the Rewards tab for eligibility requirements.

Read FAQs tab carefully for Instructions before beginning the assessment.

Rewards

NYXPoints are used to generate the Leaderboard (coming soon). They are awarded for achieving a certain score.

200 nyxpoints for a passing score of 80% or more
300 nyxpoints for a perfect score of 100%
Didn’t pass? You still get 30 nyxpoints for attempting the assesment

FAQs

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General

There are NO pre-requisites to take this assessment. Take this assessment even if you are completely new to Linux.
The assessment is completely FREE.
Preferably take it in a closed book mode.
DO NOT copy/paste, share or upload questions elsewhere.

Eligible Rewards

300 NyxCoins*

* NyxCoins vary on score

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Question 1 of 30

1. Question
Which of the following language is used to write a policy in OPA?
- Python
- Yaml
- Rego
- Json
Correct

Incorrect
Question 2 of 30

2. Question
In which of the following format OPA considers the input data while writing the policy using Rego language?
- JSON
- C++
- HCL
- Non of these
Correct

Incorrect
Question 3 of 30

3. Question
Which of the following are the benefits of using OPA over other platforms?
- OPA is designed to work with any type of JSON input, which means it can be easily integrated with any tool that produces JSON output
- OPA supports unit testing, which makes it easy and quick to iterate your policies with confidence that they will not break
- Policy as Code (PaC) allows you to follow your standard development lifecycle with PRs, CI, etc., and give you the history of changes in your policies
- All of the above
Correct

Incorrect
Question 4 of 30

4. Question
Which of the following brackets are used to refer array elements in OPA?
- Parentheses ()
- square brackets []
- curly brackets {}
- angle brackets <>
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Question 5 of 30

5. Question
How will you create user attributes stored in LDAP/AD available to OPA for making decisions?
- JSON Web Tokens
- synchronization with LDAP/AD
- Calling into LDAP/AD during policy evaluation
- All of the above
Correct

Incorrect
Question 6 of 30

6. Question
Which Equality Operators are available to use in OPA? (Multiple choice)
- assignment :=
- comparison ==
- unification =
- None of these
Correct

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Question 7 of 30

7. Question
How many types of Equality Operators are supported in Rego?
- 3
- 9
- 6
- 5
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Question 8 of 30

8. Question
Which of the below command is used to set permissions on the OPA executable?
- chmod 755 ./opa
- chgrp 755 ./opa
- chown 755 ./opa
- chusr755 ./opa
Correct

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Question 9 of 30

9. Question
Which of the below command you will use to check the version of OPA?
- opa version
- opa –version
- opa -version
- opa -v
Correct

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Question 10 of 30

10. Question
Which of the following command is used to Evaluate a policy in OPA?
- opa eval
- opa run
- opa fmt
- opa build
Correct

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Question 11 of 30

11. Question
Which of the following command is used to Start OPA in interactive or server mode?
- opa eval
- opa run -s
- opa fmt
- opa build
Correct

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Question 12 of 30

12. Question
Which of the following command is used to Execute Rego test cases?
- opa sign
- opa fmt
- opa inspect
- opa test
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Question 13 of 30

13. Question
Where are the OPA policies stored?
- Policy Registry
- Artifact Registry
- Container Registry
- Registry
Correct

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Question 14 of 30

14. Question
OPA is compiled to Node.js on the server and ________ on the client.
- C++
- Python
- JavaScript
- Go
Correct

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Question 15 of 30

15. Question
What is OPA gatekeeper?
- OPA Gatekeeper is a project that provides integration between OPA and Kubernetes
- OPA Gatekeeper is a project that provides integration between OPA and Terraform
- OPA Gatekeeper is a project that provides integration between OPA and Checkov
- None of these
Correct

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Question 16 of 30

16. Question
A _____ allows decoupling policy decisions.
- Policy
- Policy Engine
- OPA Registry
- Agent
Correct

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Question 17 of 30

17. Question
The_______ offers an interactive environment for learning and developing Rego policies entirely in the web browser.
- Rego Playground
- OPA Slack
- CodePen
- Playcode
Correct

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Question 18 of 30

18. Question
What is the correct output of below mentioned policy input?

Policy.rego

package play

import future.keywords.if

default hello := false

hello if input.message == “world”

input.json

{

    “message”: “world”

}
- { "hello": true }
- { "hello": false }
- { "hello" }
- It will return empty output
Correct

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Question 19 of 30

19. Question
Which of the following command is used to execute Benchmark for Rego query?
- opa fmt
- opa build
- opa bench
- opa sign
Correct

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Question 20 of 30

20. Question
Which command is used to build an OPA bundle?
- opa build
- opa capabilities
- opa check
- None of these
Correct

Incorrect
Question 21 of 30

21. Question
Which command is used to show the capabilities of OPA?
- opa fmt
- opa sign
- opa inspect
- opa capabilities
Correct

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Question 22 of 30

22. Question
Which of the following command is used to check Rego source files for parse and compilation errors?
- opa check
- opa eval
- opa deps
- opa exec
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Question 23 of 30

23. Question
Does OPA provide a high-level declarative language?
- Yes
- No
Correct

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Question 24 of 30

24. Question
What is Open Policy Agent (OPA)?
- OPA is an open source, general-purpose policy engine that unifies policy enforcement across the stack
- OPA is an open-source programming language for developing scalable web applications
- OPA is an influencer marketing platform that connects influencers with top brands to run influencer marketing campaigns
- All of the above
Correct

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Question 25 of 30

25. Question
For which of the following purposes OPA can be used?
- To allow or deny Terraform changes based on compliance or safety rules
- To integrate custom authorization logic into applications
- To implement Kubernetes Admission Controllers to validate API requests
- All of the above
Correct

Incorrect
Question 26 of 30

26. Question
Which of the following statements are correct for Rego language? (Multiple Choice)
- Rego is the purpose-built declarative policy language that supports Open Policy Agent
- Rego queries are assertions on data stored in OPA
- Rego is an expressive policy language that can be used to construct a wide variety of RBAC and ABAC-style policies
- Rego is designed for the purpose of expressing policies on complex hierarchical data structures
Correct

Incorrect
Question 27 of 30

27. Question
What is the correct order to integrate OPA with Terraform?
- terraform plan –out -> terraform show -json -> opa eval
- terraform init – -out -> terraform show -json -> opa eval
- terraform validate – -out -> terraform show -json -> opa eval
- terraform validate – -out -> terraform show -json -> opa eval
Correct

Incorrect
Question 28 of 30

28. Question
Which of the following is not involved into the decision-making process in OPA?
- Data
- Input
- Policy
- Rational
Correct

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Question 29 of 30

29. Question
Which of the following are the advantages of Rego that helps you to define policies for your infrastructure?
- Rego emphasis on providing powerful support for referencing nested documents and ensuring that queries are correct and clear
- Rego is declarative in nature, so policy writers can concentrate on what queries should return instead of how queries should be executed
- Like other applications which support declarative query languages, OPA can enhance the queries to advance the performance
- All of the above
Correct

Incorrect
Question 30 of 30

30. Question
When you write a policy, which of the below refers to OPA?
- Other Procurement Authority
- Open Policy Agent
- Oracle Policy Assessment
- Open Policy Automation
Correct

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OPA

Eligible Rewards

300 NyxCoins*

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