Operating Systems

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

• Library

• System calls

• Assembly instructions

• API

If a process fails, most operating system write the error information to a ______

• new file

• another running process

• log file

• none 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?

• Suspended state

• Terminated state

• Ready state

• Blocked state

The FCFS algorithm is particularly troublesome for ____________

• operating systems

• multiprocessor systems

• time sharing systems

• multiprogramming systems

A deadlock avoidance algorithm dynamically examines the __________ to ensure that a circular wait condition can never exist.

• operating system

• resources

• system storage state

• resource allocation state

The _______ program initializes all aspects of the system, from CPU registers to device controllers and the contents of main memory, and then starts the operating system.

• bootstrap

• main

• bootloader

• rom

Which one of the following is the deadlock avoidance algorithm?

• banker’s algorithm

• round-robin algorithm

• elevator algorithm

• karn’s algorithm

A problem encountered in multitasking when a process is perpetually denied necessary resources is called ____________a)b) c) d)

• deadlock

• starvation

• inversion

• aging

The bounded buffer problem is also known as ____________

• Readers – Writers problem

• Dining – Philosophers problem

• Producer – Consumer problem

• None of the mentioned

A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called ____________a) b) c) d)

• data consistency

• race condition

• aging

• starvation