Which of the following is true concerning the mainframe?

A. A single copy of the operating system resides in each processor. B. Useful for situations where data must remain in memory to process. C. Bottlenecks increase with uniprocessor systems because tasks are not shared. D. The problems of memory contention are unlikely.

A. Assure that tools will connect with middleware. B. Understand the requirements. C. Determine network bandwidth capabilities. D. Include the use of a file server.

A. New modules can be built to support specific business needs B. Performance improves for compiled SQL statements C. Results in a thinner client and database server D. All of the above.

A. It is language independent. B. It is similar in concept to ODBC. C. It is useful for all object-oriented languages. D. It consists of three main layers.