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

• System calls

• API

• Library

• Assembly instructions

What is the main function of the command interpreter?

• to get and execute the next user-specified command

• to provide the interface between the API and application program

• to handle the files in operating system

• none of the mentioned

By operating system, the resource management can be done via __________

• time division multiplexing

• space division multiplexing

• time and space division multiplexing

• none of the mentioned

Logical extension of multiprogramming operating system is

• Time sharing

• multi-tasking

• single programing

• Both time-sharing and multi-tasking

Multi-processor system gives a

• Small system

• Tightly coupled system

• loosely coupled system

• Macro system

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

• log file

• another running process

• new file

• None

Which of the following refers to the associative memory?

• the address of the data is generated by the CPU

• the address of the data is supplied by the users

• there is no need for an address i.e. the data is used as an address

• the data are accessed sequentially

In multiprogramming, programmer chooses programs which are suitable to run together from

• job center

• job terminal

• job queue

• timed job

Last step in running and preparing batch jobs is to

• printout is return

• printout is started

• printout is queued

• printout is verified

Jobs processed in multiprogramming are to be done

• very quickly

• very slow

• very time consuming

• very systematic