MCQs on Building and Managing Projects | Scala
Master project management and build automation in Scala, focusing on sbt (Scala Build Tool), dependency management, plugins, packaging, and publishing libraries. Essential for efficient Scala development and deployment.
Building and Managing Projects in Scala
1. Using sbt (Scala Build Tool)
- What does sbt stand for in Scala?
- A) Simple Build Tool
- B) Scala Build Tool
- C) Scala Batch Tool
- D) Structured Build Tool
- What is sbt primarily used for in Scala projects?
- A) Managing dependencies
- B) Running Scala code
- C) Building and compiling projects
- D) All of the above
- Which file is used to configure sbt for a Scala project?
- A)
build.sbt - B)
sbt.config - C)
project.sbt - D)
settings.sbt
- A)
- How do you specify Scala version in an sbt project?
- A) In
build.sbtusingscalaVersion - B) In
settings.sbtusingscalaVersion - C) Using command line arguments
- D) Automatically detected by sbt
- A) In
- What command is used to compile a Scala project in sbt?
- A)
compile - B)
sbt compile - C)
build - D)
run compile
- A)
- Which of the following sbt commands runs the project?
- A)
run - B)
execute - C)
start - D)
launch
- A)
- What feature of sbt allows for incremental compilation?
- A) Parallel compilation
- B) Caching
- C) Dependency management
- D) Hot reloading
- In sbt, what does
scalacOptionsconfigure?- A) Scala runtime options
- B) Scala compiler options
- C) Dependency configurations
- D) Build tool settings
- Which of the following is an sbt command to test Scala code?
- A)
test - B)
sbt test - C)
runTest - D)
testCompile
- A)
- What is the purpose of the sbt
cleancommand?- A) To delete the
targetdirectory - B) To compile the project
- C) To install dependencies
- D) To reset project settings
- A) To delete the
2. Managing Dependencies and Plugins
- How are dependencies declared in sbt?
- A) Using the
dependenciesblock inbuild.sbt - B) Using
importstatements - C) Using
libraryDependenciesblock inbuild.sbt - D) Via the sbt console
- A) Using the
- Which of the following is used to specify a plugin in sbt?
- A)
addPlugin - B)
plugins.sbt - C)
pluginDependencies - D)
plugins.add
- A)
- In sbt, which method adds an external library dependency?
- A)
libraryDependencies += - B)
addDependencies - C)
dependencies.add - D)
importDependencies
- A)
- How do you add a dependency to a specific sbt configuration?
- A) Use
inkeyword - B) Specify the configuration in the
build.sbt - C) Use
dependencyScope - D) Both A and B
- A) Use
- What is the purpose of sbt plugins?
- A) To extend sbt functionality
- B) To add support for Scala testing
- C) To automate dependency resolution
- D) To manage build scripts
- Which sbt plugin helps manage dependency versions?
- A)
sbt-updates - B)
sbt-dependency-check - C)
sbt-plugins - D)
sbt-version
- A)
- What does sbt’s
resolverssetting do?- A) Defines repositories for fetching dependencies
- B) Caches downloaded dependencies
- C) Defines external plugins
- D) Checks for dependency conflicts
- Which of the following is an sbt plugin to integrate ScalaTest?
- A)
sbt-scalatest - B)
sbt-test - C)
sbt-junit - D)
sbt-maven
- A)
- How do you list all available sbt plugins?
- A)
plugins list - B)
listPlugins - C)
show plugins - D)
plugins --list
- A)
- What is the
dependencyOverridessetting used for in sbt?- A) To override specific versions of libraries
- B) To ensure dependencies are downloaded
- C) To specify external repositories
- D) To avoid circular dependencies
3. Packaging and Publishing Libraries
- What is the sbt command for packaging a project into a
.jarfile?- A)
package - B)
jar - C)
sbt package - D)
build
- A)
- How do you publish a Scala library to a remote repository in sbt?
- A) Using
publishcommand - B) Using
sbt publishTo - C) Using
deploy - D) Using
upload
- A) Using
- Which sbt setting is used to specify the target repository for publishing?
- A)
publishTo - B)
targetRepo - C)
repoPath - D)
deployTo
- A)
- What is the default repository for publishing libraries in sbt?
- A) Maven Central
- B) Scala Bintray
- C) SBT Plugin Repository
- D) GitHub Packages
- Which sbt command builds a project and publishes it to a remote repository?
- A)
publishLocal - B)
publish - C)
deploy - D)
sbt publish
- A)
- Which command is used to publish a Scala library locally in sbt?
- A)
publishLocal - B)
deployLocal - C)
localPublish - D)
buildPublish
- A)
- What file typically contains version information for Scala libraries in sbt?
- A)
version.sbt - B)
build.sbt - C)
libraryVersion.sbt - D)
settings.sbt
- A)
- What is the purpose of the sbt
assemblyplugin?- A) To package a project into a single
.jarfile - B) To optimize Scala compilation
- C) To deploy the project
- D) To bundle dependencies with the project
- A) To package a project into a single
- Which sbt command is used to publish a package to a repository after building?
- A)
publishTo - B)
publish - C)
deploy - D)
push
- A)
- In sbt, what does the
artifactIdsetting define when publishing a library?- A) The package name
- B) The version of the library
- C) The dependency scope
- D) The unique identifier for the artifact
Answer Key
| Qno | Answer (Option with the text) |
|---|---|
| 1 | B) Scala Build Tool |
| 2 | D) All of the above |
| 3 | A) build.sbt |
| 4 | A) In build.sbt using scalaVersion |
| 5 | B) sbt compile |
| 6 | A) run |
| 7 | B) Caching |
| 8 | B) Scala compiler options |
| 9 | B) sbt test |
| 10 | A) To delete the target directory |
| 11 | C) libraryDependencies block in build.sbt |
| 12 | B) plugins.sbt |
| 13 | A) libraryDependencies += |
| 14 | D) Both A and B |
| 15 | A) To extend sbt functionality |
| 16 | A) sbt-updates |
| 17 | A) Defines repositories for fetching dependencies |
| 18 | A) sbt-scalatest |
| 19 | D) plugins --list |
| 20 | A) To override specific versions of libraries |
| 21 | A) package |
| 22 | B) Using sbt publishTo |
| 23 | A) publishTo |
| 24 | A) Maven Central |
| 25 | B) publish |
| 26 | A) publishLocal |
| 27 | B) build.sbt |
| 28 | A) To package a project into a single .jar file |
| 29 | B) publish |
| 30 | D) The unique identifier for the artifact |