In Operating Systems, which of the following is/are CPU scheduling algorithms?

• A. Round robin
• B. Shortest job first
• C. Priority
• D. All of the mentioned

To access the services of the operating system, the interface is provided by the ___________

• A. Library
• B. System calls
• C. Assembly instructions
• D. Api

CPU scheduling is the basis of ___________

• A. Multiprocessor systems
• B. Multiprogramming operating systems
• C. Larger memory sized systems
• D. None of the mentioned

Which one of the following errors will be handle by the operating system?

• A. Lack of paper in printer
• B. Connection failure in the network
• C. Power failure
• D. All of the mentioned

Where is the operating system placed in the memory?

• A. Either low or high memory (depending on the location of interrupt vector)
• B. In the low memory
• C. In the high memory
• D. None of the mentioned

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 mentioned

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

• A. Vxworks
• B. Qnx
• C. Rtlinux
• D. Palm os

What does OS X has?

• A. Monolithic kernel with modules
• B. Microkernel
• C. Monolithic kernel
• D. Hybrid kernel

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 mentioned

In a timeshare operating system, when the time slot assigned to a process is completed, the process switches from the current state to?

• A. Suspended state
• B. Terminated state
• C. Ready state
• D. Blocked state