Answer:
Assume that a context switch takes T time. Suggest an upper bound (in terms of T) for holding a spinlock. If the spinlock is held for any longer, a mutex lock (where waiting threads are put to sleep) is a better alternative.
Explanation:
The top limit is to be twice the value of (2xT). Holding the spinlock for a longer time, it will be necessary to put the thread to sleep and get a context switch, so one process awakes the sleeping thread without the need of a second context switch.
In process synchronization, cooperating process can affect or be affected by other processes executing in the system, either directly share a logical address space, both code and data, or be allowed to share data only through files or messages, although concurrent access to shared data may result in data inconsistency. But there are several mechanisms to help the orderly execution of cooperating processes that share a logical address space, so that data consistency is kept.
Answer:
correct option is A. $145
Explanation:
given data
investment cost = $2900
interest rate = 5% per year
solution
formula for present value of perpetuity is
investment cost = fixed cash saving per year ÷ interest rate ..................1
put her value we get fixed cash saving per year that is
saving per year cost = $2900 × 5%
saving per year cost = $2900 × 0.05
saving per year cost = $145
so correct option is A. $145
Answer:
The second year’s depreciation for this equipment using the straight line method is 8,500
Explanation:
Depreciation: Depreciation is a decreasing value of the assets due to the tear & wear, obsolescence, usage,etc.
The formula to compute the depreciation under straight lie method is shown below:
= 
= 
= $8,500
The depreciation amount under straight line method should remain same over the estimated useful life
So, the second year’s depreciation for this equipment is $8,500
Answer:
d) making HR planning more critical and complex.
Explanation:
Globalization refers to the way of interacting with different people around the world in order to get healthy relationship for business purpose. Communication technologies become a helping hand to make globalization so easy and efficient.
Increase Globalization increase the practice of human Resource, in order to maintain the workforce in a more systematic way thus globalization make human resource planning more complex.
