operating system

tustlumer with a software stack e server) ready for application use via the Internet is called: a. Infrastructure as a Service (laaS) b. Platform as a Service (Paas) c. Software as a Service (Saas) d. None of the above True/False Questions - 2 points each: Write T or F beside each question. 1. The operating system kernel consists of all system and application programs in a computer 2. Interrupts may be triggered by either hardware or software. 3. System calls can be run in either user mode or kernel mode. 4. The difference between a program and a process is that a program is an active entity while a process is a passive entity. Mac OS is a hybrid system incorporating aspects of monolithic/modular, layered, and microkernel designs. In the "Windows NT" architecture, the Win32 Environment Subsystem and the Windows Subsystem for Linux coexist as user mode services,running above a kernel mode layer comprising the Executive Services and a microkernel 5. 6. 7. In UNIX systems, the exec () system call creates a new process. Ordinary pipes in UNIX require a parent-child relationship between the communicating processes. 8. 9. Non-blocking send or receive operations are considered synchronous 10. Real-time operating systems must guarantee that well-defined fixed time constraints are always met. Page 2 of 2