MCQ 1 What is operating system?

(A) The collection of programs that manages hardware resources (B) System service provider to the application programs (C) Link to interface the hardware and application programs (D) All of the above

MCQ 2 Which one of the following is not true?

(A) Kernel is the program that constitutes the central core of the operating system. (B) Kernel is the first part of operating system to load into memory during booting. (C) Kernel is made of various modules which can not be loaded in running operating system. (D) Krnel remains in the memory during the entire computer session.

MCQ 3 What is the main function of the command interpreter?

(A) To get and execute the next user-specified command (B) To provide the interface between the API and application program (C) To handle the files in operating system (D) None of the above

MCQ 4 If a process fails, most operating system write the error information to a _____________.

(A) log file (B) another running process (C) new file (D) None of the above

MCQ 5 Which one of the following is not a real time operating system?

(A) Vx Works (B) Windows CE (C) RTLinux (D) Palm OS

MCQ 6 In operating system, each process has its own _____________.

(A) address space and global variables (B) open files (C) pending alarms, signals and signal handlers (D) All of the above

MCQ 7 A process can be terminated due to ____________.

(A) normal exit (B) fatal error (C) killed by another process (D) All of the above

MCQ 8 What is inter process communication?

(A) Communication within the process (B) Communication between two process (C) Communication between two threads of same process (D) None of the above

MCQ 9 A process stack does not contain _____________.

(A) Function parameters (B) Local variables (C) Return addresses (D) PID of child process

MCQ 10 The address of the next instruction to be executed by the current process is provided by the __________

(A) CPU registers (B) Program counter (C) Process stack (D) Pipe

MCQ 11 The number of processes completed per unit time is known as __________.

(A) Output (B) Throughput (C) Efficiency (D) Capacity

MCQ 12 Which of the following is not the state of a process?

(A) New (B) Old (C) Waiting (D) Running

MCQ 13 Which of the following do not belong to queues for processes?`````

(A) Job Queue (B) PCB queue (C) Device Queue (D) Ready Queue

MCQ 14 What is a long-term scheduler?

(A) It selects which process has to be brought into the ready queue (B) It selects which process has to be executed next and allocates CPU (C) It selects which process to remove from memory by swapping (D) None of the above

MCQ 15 What is a short-term scheduler?

(A) It selects which process has to be brought into the ready queue (B) It selects which process has to be executed next and allocates CPU (C) It selects which process to remove from memory by swapping (D) None of the above

MCQ 16 Which of the following does not interrupt a running process?

(A) A device (B) Timer (C) Scheduler process (D) Power failure

MCQ 17 The child process can __________.

(A) be a duplicate of the parent process (B) never be a duplicate of the parent process (C) cannot have another program loaded into it (D) never have another program loaded into it

MCQ 18 What is a reusable resource?

(A) That can be shared between various threads (B) That can be used by more than one process at a time (C) That can be used by one process at a time and is not depleted by that use (D) None of the above

MCQ 19 What is networked virtual memory?

(A) Caching (B) Segmentation (C) RAM disk (D) None of the above

MCQ 20 The ___________ swaps processes in and out of the memory.

(A) Memory manager (B) CPU (C) CPU manager (D) User

MCQ 21 A memory buffer used to accommodate a speed differential is called ____________.

(A) stack pointer (B) cache (C) accumulator (D) disk buffer

MCQ 22 The address of a page table in memory is pointed by ____________.

(A) stack pointer (B) page table base register (C) page register (D) program counter

MCQ 23 The page table contains ____________.

(A) base address of each page in physical memory (B) page offset (C) page size (D) None of the above

MCQ 24 File type can be represented by ____________.

(A) file name (B) file extension (C) file identifier (D) None of the above

MCQ 25 What is the mounting of file system?

(A) crating of a file system (B) deleting a filesystem (C) attaching portion of the file system into a directory structure (D) removing the portion of the file system into a directory structure