How Well Do You Know Drools?

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| By Timmy198

Timmy198

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Quizzes Created: 577 | Total Attempts: 302,656

Questions: 10 | Attempts: 161 | Updated: Mar 21, 2023

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Drools is a business rule management system (BRMS) enterprise product enhanced implementation of the rete algorithm and better known as production rule system. Its rule engine is based on forward and backward chain inference.

Questions and Answers

1.

The Drool is written in what programming language?
- A.
  
  Python
- B.
  
  PHP
- C.
  
  Java
- D.
  
  C++
Correct Answer
C. Java

Explanation
The Drool is written in Java.

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2.

The Drools was developed by
- A.
  
  Red Hat
- B.
  
  Jim cook
- C.
  
  Charles Brown
- D.
  
  Collins Park
Correct Answer
A. Red Hat

Explanation
Drools is a popular open-source business rule management system (BRMS) that allows users to define and execute complex business rules. It was developed by Red Hat, a well-known software company that specializes in open-source solutions. Red Hat has a strong reputation in the industry for its contributions to the open-source community, and their involvement in developing Drools adds credibility to the system. Therefore, the correct answer is Red Hat.

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3.

The Drools as a business rule management system is of what type?
- A.
  
  Rules engine type
- B.
  
  Products oriented type
- C.
  
  Multiple entry type
- D.
  
  Simple entry type
Correct Answer
A. Rules engine type

Explanation
The correct answer is "Rules engine type." Drools is a business rule management system that falls under the category of a rules engine type. This means that it is designed to execute and manage business rules, which are a set of if-then statements that govern the behavior of a system or application. Drools allows users to define and modify these rules, making it a powerful tool for managing complex business logic.

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4.

Which of these is the flagship productive version of Drools?
- A.
  
  Guvnor
- B.
  
  Drools flow
- C.
  
  Drools expert
- D.
  
  JBoss Enterprise BRMS
Correct Answer
D. JBoss Enterprise BRMS

Explanation
JBoss Enterprise BRMS is the flagship productive version of Drools because it is a comprehensive business rules management system that combines the power of the Drools rule engine with additional features such as a web-based authoring environment, version control, and deployment capabilities. It provides a user-friendly interface for managing and executing business rules, making it the ideal choice for organizations looking to effectively manage and automate their business processes.

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5.

All of these are components of the enterprise version of Drools except
- A.
  
  Business rule engine
- B.
  
  Business rule automation
- C.
  
  Business rule manager
- D.
  
  Business rule repository
Correct Answer
B. Business rule automation

Explanation
The given question is asking for the component that is not included in the enterprise version of Drools. The options provided are business rule engine, business rule automation, business rule manager, and business rule repository. The correct answer is business rule automation. This means that the enterprise version of Drools does include a business rule engine, business rule manager, and business rule repository, but it does not include business rule automation.

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6.

All of these are components of JS community version except
- A.
  
  Drools expert
- B.
  
  Drools guvnor
- C.
  
  Drools control
- D.
  
  Drools flow
Correct Answer
C. Drools control

Explanation
The correct answer is Drools control. Drools control is not a component of the JS community version. The other options, Drools expert, Drools guvnor, and Drools flow, are all components of the JS community version.

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7.

When was Drools released?
- A.
  
  May 29, 2017
- B.
  
  May 29, 2015
- C.
  
  May 9, 2014
- D.
  
  May 29, 2010
Correct Answer
A. May 29, 2017
8.

The umbrella name for drools, optaPlanner , jBPM , Guvnor, uberFire and related technologies is
- A.
  
  KIP (Knowledge is Power)
- B.
  
  KIW (Knowledge is Wealth)
- C.
  
  KIS (Knowledge is Strength)
- D.
  
  KIE(Knowledge is Everything) KIE(Knowledge is Everything) KIE(Knowledge is Everything) KIE (Knowledge is Everything)
Correct Answer
D. KIE(Knowledge is Everything) KIE(Knowledge is Everything) KIE(Knowledge is Everything) KIE (Knowledge is Everything)

Explanation
The umbrella name for drools, optaPlanner, jBPM, Guvnor, uberFire and related technologies is KIE (Knowledge is Everything). This implies that these technologies are all part of the same knowledge-based system that encompasses various aspects such as rules, planning, workflow management, and more. The term "Knowledge is Everything" suggests that these technologies are designed to leverage knowledge and intelligence to drive effective decision-making and problem-solving processes.

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9.

Drools Guvnor is also regarded as
- A.
  
  Drools power
- B.
  
  Drools expert
- C.
  
  Drools repository
- D.
  
  Drools flow
Correct Answer
C. Drools repository

Explanation
Drools Guvnor is regarded as Drools repository because it is a web-based tool that allows users to manage and store rules and related assets. It provides a centralized location for storing, versioning, and organizing rules, decision tables, and other artifacts. With Drools Guvnor, users can easily collaborate, share, and reuse rules across multiple projects and applications. It also offers features like version control, access control, and auditing, making it an ideal choice for managing and maintaining a repository of rules in a Drools-based system.

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10.

The Drools Expert engages the Drools Rule Language and
- A.
  
  Drools algorithm
- B.
  
  Drools program code
- C.
  
  Rete algorithm
- D.
  
  Program algorithm
Correct Answer
C. Rete algorithm

Explanation
The correct answer is Rete algorithm. The Rete algorithm is a pattern matching algorithm used by Drools Expert to efficiently match and apply rules to incoming data. It is a key component of the Drools rule engine and helps in optimizing rule execution by creating a network of nodes to represent the rules and their conditions. This algorithm allows for fast and efficient rule evaluation, making Drools Expert a powerful tool for rule-based decision making.

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