A technician is logged in to a Linux computer as johnd and needs to reset group ownership for the file report.txt in the johnd home directory.
 
Which of the following commands will perform this function?

Answer the following statements true (T) or false (F)

1. A method’s changes to a variable that is passed by value do not affect the value of the original variable. 2. Keyword Val is used to pass an argument by value. 3. Passing arguments by reference can weaken security because the called method can modify the caller’s data.

The pointer to the next node in a linked list is referred to as a(n) ______.

Fill in the blank(s) with the appropriate word(s).