Exam 20: Systems Operations and Support

System enhancement can be done in response to all of the following events EXCEPT:

Poor maintenance can cause program understanding can take considerable time.

The __________________________ is a data store of all application programs. The source code for these programs must be maintained for the life of the system.

Cycle complexity is an example of software metrics.

The _________________________ is a data store(s) of accumulated system knowledge - system models, detailed specifications, and any other documentation that has been accumulated during the systems development.

______________________________ is the day-to-day, week-to-week, month-to-month and year-to-year execution of an information system's business processes and application programs.

With proper system maintenance a system will always remain cost-effective to support and maintain.

Which of the following is NOT a reason why understanding applications can be slow?

As an adaptive process, ________________________ can be in response to the following events: new business problems, new business requirements, new technology requirements.

The high cost of system maintenance is largely due to failure to update system knowledge (in the repository) and program source code documentation (in the program library).

Which of the following ensures that the entire application, of which the modified program was a part, still works?

Which of the following is NOT a task of systems maintenance?

Which of the following is NOT a possible system recovery activity?

_______________________________ extrapolates the impact of the changes on program and application throughput and response time from the before and after results using the test data and current performance.

Which of the following extrapolates the impact of the changes on program and application throughput and response time from the before and after results using the test data?

System maintenance typically involves the following tasks:

Two types of adaptive maintenance are system enhancement and systems reengineering.

___________________________________ is the number of times logic paths cross one another. Ideally, a program should have zero.

_________________________________ restructures the modular organization and/or logic of the program. Logic may be restructured to eliminate control flow knots and reduce cycle complexity.

If a system crash occurs in the middle of a transaction, then any transactional updates to the database the occurred before the crash must be undone. This is called a roll back.