XK0-005 Question #383: Real Exam Question with Answer & Explanation

Question

A Linux administrator is running a script that runs a Java application but receives the following error: Error: Java_Home is not set Java is installed on the Linux server and java -version returns a value. Which of the following should the administrator add to the script to resolve this issue?

Options

• AExport PATH-$PATH: $JAVA_HOME
• BEcho `which java > $JAVA_HOME
• CExport Java_Home which java
• DSet JAVA_HOME -which java

Explanation

The Java application is failing because the JAVA_HOME environment variable is not set, even though Java itself is installed.

Common mistakes.

• A. This option attempts to modify the PATH variable using incorrect syntax, not to set JAVA_HOME.
• B. This option uses echo and redirection, which is not the correct command or syntax for setting an environment variable.
• C. This option has incorrect syntax for export, as it attempts to export Java_Home without an assigned value and then executes which java separately.

Concept tested. Setting environment variables in Linux scripts

Reference. https://docs.oracle.com/en/java/javase/17/install/installation-jdk-linux-platforms.html

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