OMG OMG-OCRES-I200 問題集

質問 1：
Which of the following can be controlled using RT CORBA? (Choose two)
A. memory addresses
B. transport connections
C. thread pools
D. number of CORBA objects
正解：B,C

質問 2：
What is the general concurrency model based on?
A. resource model
B. causality model
C. event model
D. scenario model
正解：B

質問 3：
What two phrases are true about the Real-time CORBA specification scope? (Choose two.)
A. includes thread pool management for both client and server side
B. includes both static and dynamic scheduling
C. includes thread pool management for server side only
D. includes static scheduling only
正解：A,B

質問 4：
Which class acts as the factory used to construct WaitSet objects?
A. DomainParticipant
B. There is no factory forWaitSet objects
C. DomainParticipantFactory
D. Subscriber
E. DataReader
正解：B

質問 5：
TCP/IP is used in many real-time applications because it------------------
A. is ubiquitous in Internet applications and is therefore widely available
B. is implemented directly in networked hardware devices
C. is so pervasive that it has achieved very high efficiency
D. readily supports the bounded time constraints imposed on real-time applications
正解：A

質問 6：
What are two reasons to use Exception Declarations? (Choose two.)
A. to provide a mechanism to determine the nature of an error
B. to provide a structure to indicate that an error has occurred
C. as a simple flag to indicate that an error occurred during an operation
D. to handle standard system exceptions only
正解：A,B

質問 7：
The Lightweight Event Service provides an interface for ---------------
A. an asynchronous, one-to-one, first-in, first-out (FIFO) event channel
B. suppliers to push events to an event channel, which in turn pushes events to consumers
C. storing events in an event channel, from which they are polled by listeners
D. event consumers to request (poll) events from event suppliers
正解：B

質問 8：
If the ORB cannot map the configured range of priorities, CORBA::ORB_init will raise _____.
A. INITIALIZE with minor code 1
B. MARSHAL with minor code 4
C. DATA_CONVERSION with minor code 2
D. BAD_INV_ORDER with minor code 18
正解：C

質問 9：
Max_buffered_requests or max_request_buffer_size has been reached, and new requests are incoming.
What two actions occur? (Choose two.)
A. newer requests are discarded
B. exception NO_RESOURCES is raised
C. exception NO_RESOURCES is raised after a timeout
D. oldest requests are discarded
正解：A,B