Question 1

If one of the thread in multithreaded process is blocked on an I/O, which of the following is true?

Accepted Answer

A) the entire process with block if their is no kernel supported threads 
B) other threads of the process will continue to execute even if there is no kernel supported threads 
C) it depends on specific implementatation 
D) all of the above

Question 2

Nice can be used by an ordinary process to

Accepted Answer

A) increase the priority of a process 
B) decrease the priority of a process 
C) increase or decrease the priority of a process

Question 3

Mm_struct maintains?

Accepted Answer

A) memory files 
B) open files 
C) pipe 
D) active memory regions

Question 4

Which of the following exec call is a system call?

Accepted Answer

A) execl 
B) execlp 
C) execve 
D) execvp

Question 5

LRU stands for

Accepted Answer

A) last received unit 
B) least recently used 
C) least recently usable 
D) lost recoverd unit

Question 6

If the fork() system call returns -1, then it means?

Accepted Answer

A) no new child process is created 
B) the child process is an orphan 
C) the child process is in zombie

Question 7

Monolithic kernel

Accepted Answer

A) is highly extensiblity 
B) has less run time overhead 
C) smaller than micro level 
D) suitable for real time system

Question 8

On x86-32 Linux, at which address the code segment of the program starts?

Accepted Answer

A) 0x00000000 
B) 0x08048000 
C) 0x80000000 
D) 0xbfff0000

Exam 4: Operating System and Process Management