Which core component of an Operating System acts as an intermediary between user applications and the computer hardware, managing hardware resources directly?
Option B is correct. Which core component of an Operating System acts as an intermediary between user applications and the computer hardware, managing hardware resources directly? Answer: Kernel.
What hardware feature prevents a user program from modifying critical operating system memory or executing restricted hardware instructions?
Option D is correct. What hardware feature prevents a user program from modifying critical operating system memory or executing restricted hardware instructions? Answer: Dual-mode operation using a hardware Mode Bit.
When a user-level program requires a system service like reading a file from disk, how does it request this service from the kernel?
Option D is correct. When a user-level program requires a system service like reading a file from disk, how does it request this service from the kernel? Answer: By executing a Trap instruction to initiate a System Call.
Which system call in UNIX/Linux is used to create a new, child process that is an exact duplicate of the calling parent process?
Option C is correct. Which system call in UNIX/Linux is used to create a new, child process that is an exact duplicate of the calling parent process? Answer: fork().
Which operating system architecture minimizes the kernel by moving services like file systems and device drivers into user space, communicating via Inter-Process Communication (IPC)?
Option E is correct. Which operating system architecture minimizes the kernel by moving services like file systems and device drivers into user space, communicating via Inter-Process Communication (IPC)? Answer: Microkernel Architecture.