$1.$ Which type of memory fragmentation does "paging" eliminate?

Group of answer choices

External fragmentation

Internal fragmentation

Bank fragmentation

None of the above

$2.$ The vfork system call optimizes process creation by not making a copy of the parent's page table in the child process. Which of the following is a valid use$-$case for the vfork system call?

Group of answer choices

The child process upon vfork performs a join on the parent process.

The child process exits immediately upon vfork.

The child process executes a specific function shared with the parent.

The child process performs an exec system call immediately upon vfork.