In the context of database security, user ______ management allows access to data on an as-needed basis.

Discuss whether it is possible to improve upon the ‘pull’ model of service discovery by multicasting (or broadcasting) and caching replies to queries.

What will be an ideal response?

Suppose that outFile is an ofstream variable and output is to be stored in the file outputData.out. Which of the following statements opens the file outputData.out and associates outFile to the output file?

A. outFile("outputData.out"); B. outFile.open("outputData.out"); C. open(outFile,"outputData.out"); D. open.outFile("outputData.out");