A municipal compost lab has a working image, but the container exits immediately because nothing declares the process the runtime should start. Which instruction family defines the default executable for the container?
Select an answer to reveal the explanation.
Short Explanation
An image without ENTRYPOINT or CMD is like a music box with no song loaded—the box exists, but nothing plays when you open it. Those two instructions tell the runtime what process to start; COPY and WORKDIR just arrange the furniture.
Full Explanation
ENTRYPOINT and CMD define the default process for a container. WORKDIR only changes the working directory, COPY stages files, and EXPOSE documents a listening port without launching anything. Without a process declaration, many hosts start the container and then exit when no long-running command is defined.