Multiple choice Which of the following is referred to as an orphan in a client-server model? A waiting client when the server crashes after carrying out the request, but before sending the reply A running server with no waiting parent. A lost message An unacknowledged message A duplicate message Reveal answer Fill a bubble to check yourself B Correct answer Explanation When a client crashes after starting a RPC , the server whose process continues to run is called an orphan and causes wastage of CPU cycles and other resources.