Is knowledge of Daemon threads required for 1.4?

I noticed a couple of questions on these, and my book did not cover them. Is it worth knowing these for the 1.4 exam?

Daemon threads aren't really that different from a normal thread. The key is that they are then dependent upon another process. When that thread dies, so too, does the daemon thread.
I would expect daemon threads to appear on the exam.

I think the main things you need to understand about Daemon threads is that the JVM will exit once there are no non-Daemon threads (user threads) running. Also, when you spawn a thread it will get the same status as the thread that created it, unless explicitly set using setDaemon(boolean).

setDaemon(boolean) can only be used if the thread has not been started.
[ June 20, 2003: Message edited by: Anupam Sinha ]

Thanks for those quick tips!