Answer: d) Persistent rootkit
Explanation:
Persistent rootkit is the rootkit device that performs the constant function of getting loaded at every moment when the computer system gets started.This function is automatically executed .
- Other options are incorrect because user-mode rootkit,kernel mode rootkit and memory-orientated rootkit are not devices that gets activated every time the computing system gets booted -up.
- Thus, the correct option is option(d).
