OS quiz

Which of the following schedules threads?

• Virtual Memory

• Operating system

• CPU

• Input

When was the first operating system developed?

• 1948

• 1949

• 1950

• 1951

Which of the following operating system runs on the server?

• Batch OS

• Distributed OS

• Real-time OS

• Network OS

______ is not process control system calls function in Unix

• fork()

• exit()

• wait()

• open()

_____ is not a OS services

• Accounting

• error detection

• system call

• I/O operations

Which is Disadvantage of Network OS

• Highly stable centralized servers

• Maintenance and updates are required regularly

• Server access are possible remotely from different locations and types of systems

• New technologies and hardware up-gradation are easily integrated to the system

which of the following types of OS is non-interactive?

• Multitasking OS

• Multi-user OS

• Batch OS

• Multiprogramming OS

PCB is

• Process type variable

• Data Structure

• A secondary storage section

• A block Memory

When we execute a C program, CPU runs in ____ mode.

• user

• kernel

• supervisory

• system

• I,II and III Only

• II and III only

• I,II and IV only

• ALL