Which of the following statements about threads is/are TRUE?
A
Threads can only be implemented in kernel space
B
Each thread has its own file descriptor table for open files
C
All the threads belonging to a process share a common stack
D
Threads belonging to a process are by default not protected from each other
2
GATE CSE 2019
Numerical
+1
-0.33
Consider three concurrent processes P1, P2 and P3 as shown below, which access a shared variable D that has been initialized to 100.
The process are executed on a uniprocessor system running a time-shared operating system. If the minimum and maximum possible values of D after the three processes have completed execution are X and Y respectively, then the value of Y–X is _________.
Your input ____
3
GATE CSE 2015 Set 1
MCQ (Single Correct Answer)
+1
-0.3
A file is organized so that the ordering of data records is the same as or close to the ordering of data entries in some index. Then that index is called
A
Dense
B
Sparse
C
Clustered
D
Unclustered
4
GATE CSE 2015 Set 1
Numerical
+1
-0
The following two functions P1 and P2 that share a variable B with an initial value of 2 execute concurrently.
P1( ) {
C = B – 1;
B = 2 * C;
}
P2( ) {
D = 2 * B;
B = D - 1;
}
The number of distinct values that B can possibly take after the execution is___________.
