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Each of a set of n processes executes the following code using two semaphores a and b initialized to 1 and 0, respectively. Assume that count is a shared variable initialized to 0 and not used in CODE SECTION P. CODE SECTION P wait (a); count=count+1 ; if (count==n) signal (b) ; signal (a) ; wait (b) ; signal (b) ; CODE SECTION Q What does the code achieve?
Consider the following code. int count = 0; void *thfun () { int ctr=0; for (ctr=0; ctr<100; ctr++)      count++; } If thfun is executed by two threads concurrently in a uniprocessor system, what will be the MINIMUM value of count when both threads complete their execution? Assume that count++ is performed using three instructions: (i) read value of count from memory to a CPU register R, (ii) increment R, and (iii) store the value of R in memory. 
Consider the following code snippet : var c = counter(), d = counter(); c.count() d.count() c.reset() c.count() d.count() The state stored in d is :
Quantity I: Mc Donald farm has only Emus and Lions, the total count of legs was 14 less than 4 times the total count of heads. How many legs are counted in total? Quantity II: Mc Donald Farm has only Emus and Lions, the total count of legs was 15 less than 5 times the total count of the head. How many legs are counted in total?
What is the output of the following code snippet:
count = 0
while count     print("Hello")
    count += 1
What is the output of the following code:
class MyClass:
count = 0
def init(self):
MyClass.count += 1
obj1 = MyClass()
obj2 = MyClass()
print(obj1.count)
Which of the following command options are displayed when you use the Router# show frame-relay ? command?
1. dlci
2. neighbors
3. lmi
4. pvc
5. map
What is the significance of the statement "HAVING COUNT (emp_id)>2" in the following MySQL statement?
SELECT d.name, COUNT (emp_id) emp_noFROM department d INNER JOIN Employee eON d.dept_id=e.emp_idGROUP BY d.nameHAVING COUNT (emp_id)>2
What value is stored in the count variable when the loop ends?
For count As Integer = 5 to 9 Step 5MessageBox.Show("Hi")Next count
hat will be the output of the following R code?
> centre <- function(x, type) {+ switch(type,+ mean = mean(x),+ median = median(x),+ trimmed = mean(x, trim = .1))+ }> x <- rcauchy(10)> centre(x, "mean")