OSG202 - SP2025 - FE - RETAKE

When a virtual memory system manages memory in fixed length units, which of the following terms correctly represents its unit?

• Frame
• Page
• Block
• Segment

What is NOT an operating system mode?

• System mode
• User mode
• Kernel mode
• Supervisor mode

In I/0 Devices, the softh.rare that talks to a controller, giving it commands and accepting responses, is called ____

• device driver
• DMA
• device interface
• interrupt

What happens to the program counter after an instruction is fetched?

• It is reset to zero
• It is updated to point to the next instruction
• It is used to store the result of the instruction
• It is used to store the total length of the program being executed

Which operating system runs on systems with any CPU (multi-processor, multi-core, multi-chip)?

• Embedded OS
• Multiprocessor OS
• PC OS
• Server OS

What is the output of the following command: echo $((5 / 2 * 2)) ?

• 1.0
• 5.0
• 4.0
• 2.0

In Unix, which the POSIX system call creates the new process?

• fork
• create
• new
• CreateProcess

In the FIFO page replacement algorithm, what data structure is commonly used to implement the page replacement queue?

• Stack
• Queue
• Linked List
• Array

Which of the following is an Operating System component?

• Process Management
• Speed Management
• Space Management
• Time Management

In computer operating systems, how are processes understood?

• A program saved on disk.
• A program is loaded into memory and the CPIJ is executing
• A program loads into primary memory or secondary memory
• A program loaded on disk.