A situation, where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which the access takes place, is called race condition To guard against the race condition we need to ensure that only one process at a time can be manipulating the same data The technique we use for this is called process synchronization
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1. In the relational model, relationships between relations or tables are created by using:
Correct Answer: Object Repository means not a collection of objects it's a common repository for all the people (testing, developers) for seeing all the data in single login for example QA wants to see 5 testers works then he goes to each person login and see the data It's very difficult job for this we can use Object Repository
Correct Answer: The OSI Model is used as a reference model The primary reason the OSI model was created was so that different networks could inter-operate Hence, different networks could communicate