070-521 Free Dumps Study Materials
Question 16: A WCF service code is implemented as follows. (Line numbers are included for reference only.)
01 [ServiceContract]
02 [ServiceBehavior(InstanceContextMode =
03 InstanceContextMode.Single)]
04 public class CalculatorService
05 {
06 [OperationContract]
07 public double Calculate(double op1, string op, double op2)
08 {
...
24 }
25 }
You need to decrease the response time of the service.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution.
Choose two.)
A.Change the service behavior to the following.
[ServiceBehavior(
InstanceContextMode = InstanceContextMode.Single,
ConcurrencyMode = ConcurrencyMode.Multiple)]
B.Change the service behavior to the following.
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]
C.Require the clients use threads, the Parallel Task Library, or other mechanism to issue service calls in
parallel.
D.Require the clients to use async operations when calling the service.
Correct Answer: AB