1. What is the main function of the command interpreter?
A. to get and execute the next user B. to provide the interface between the API and application program C. to handle the files in operating system D. none of the mentioned
2. Which facility dynamically adds probes to a running system, both in user processes and in the kernel?
A. DTrace B. DLocate C. DMap D. DAdd
3. In the layered approach of Operating Systems __________
Bottom Layer(0) is the User interfaceB.
Highest Layer(N) is the User interfaceC.
Bottom Layer(N) is the hardwareD.
Highest Layer(N) is the hardware