The logic employed in multi-user database management systems was the inspiration for which type of concurrency?

If the compiler partitions the iterations of a loop across processors in a multi-processor computing system, we refer to this as

How many semaphores do we need to support Cooperation synchronization?

We have the following piece of Ada code. Let us assume that two Bar messages have arrived before we get to the accept clause. During the processing of the accept clause a third Bar message arrives.

How many Bar messages will this task process in total?

task body Foo is
  begin
      -- do some non-message Foo processing here
      accept Bar (parameters) do
        -- do Bar processing here
      end Bar;
      -- do some non-message Foo processing here
  end Foo;

Which data type is used by Clojure's STM?

Let's say that we are writing a concurrent Java program. 

A group of threads are waiting for a certain condition to become true, and each calls wait so that they can be informed about changes that will occur at some future point. The wait calls occur in the following order:

thread1 calls wait

thread2 calls wait

thread3 calls wait

thread4 now changes some shared variable, and needs to inform the others about the change. So thread4 invokes the following

notify

Which of the threads will be notified, given the order in which they called wait?

pthreads are built-in to the syntax of which language?

In Ada, entry points are defined in...

Assume that we have the Clojure code below (the syntax is valid, the @foo notation represents the value of foo ). Given this code, which of the following observations is true?

(def foo (future   
   (Thread/sleep 2000) 4000 )
)
(println @foo)

Assume that we have the Clojure code below. What would the println statement display?

(def foo (atom 10))
(future (swap! foo + 15))
(future (swap! foo - 5))
(Thread/sleep 2000)
(println (deref foo))