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Question 1

Which file format is commonly used for configuration in Helidon?

Options :

A : XML

B : JSON

C : Properties

D : YAML

Answer: D

Question 2

Which component in Helidon Configuration allows you to retrieve a specific configuration property?

Options :

A : ConfigContext

B : ConfigNode

C : ConfigProvider

D : ConfigSource

Answer: C

Question 3

Which design pattern is often used to provide fault-tolerance in microservices architecture?

Options :

A : Observer

B : Adapter

C : Circuit breaker

D : Singleton

Answer: C

Question 4

What is the purpose of the `native-image` executable in the application building and packaging process?

Options :

A : To create a standalone executable of the Helidon application

B : To optimize the runtime performance of the Helidon application

C : To analyze the memory usage of the Helidon application

D : To profile the CPU usage of the Helidon application

Answer: A

Question 5

How can you include external configuration sources in Helidon?

Options :

A : By using configuration templates with placeholders

B : By adding external configuration files to the classpath

C : By combining multiple configuration files into a single file

D : By importing configuration files using the importConfig() method

Answer: D