Operating System (OS)
The necessary conditions needed before deadlock can occur?

Mutual Exclusion, No Hold and wait, Preemption, Circular Wait
Mutual Exclusion, Hold and wait, Preemption, No Circular Wait
Mutual Exclusion, Hold and wait, No Preemption, Circular Wait
No Mutual Exclusion, Hold and wait, Preemption, Circular Wait

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The advantage of a command processor running only built-in commands is:

flexibility to the users in running lists of commands by simply collecting them in named batch command files
the processing is much faster than would other-wise be the case when user defined commands are used
the command set being common across different hardware configurations
None of these
users can create system programs and run them as commands

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
All of the following are TRUE regarding virtual memory EXCEPT

The setting for the amount of hard disk drive space to allocate virtual memory can be manually change
This temporary storage is called the swap file or page file
Any amount of RAM can be allocated to virtual memory
Virtual memory is the physical space o the hard drive

ANSWER DOWNLOAD EXAMIANS APP