The result of calling kill(6003, 0) is which of the following?

Which of the following techniques can help keep system programs secure?

Which of the following could the fork() command return to the child process?

Which of the following is correct for the standard file descriptors that are automatically opened in UNIX?

When a new process is created using fork(), which of the following describes the state of open file descriptors?

An orphan process occurs as a result of which of the following conditions?

Which statement about enums is false?

Which choice is not valid loop syntax?

Your application requires a single copy of some data type T to be held in memory that can be accessed by multiple threads. What is the thread-safe wrapper type?

Which types are not allowed within an enum variant's body?

What smart pointer is used to allow multiple ownership of a value in various threads?