What is ISO, and why is it important to a systems developer?
What will be an ideal response?
The International Organization for Standardization (ISO) is a worldwide body that establishes quality standards for products and services. ISO standards can help firms deliver consistently high-quality products and services. Because software is so important to a company’s success, many firms seek assurance that software systems, either purchased or developed in-house, will meet rigid quality standards. In 2004, ISO updated a set of guidelines called ISO 9000-3:2004, which provided a quality assurance framework for developing and maintaining software. According to ISO, a revision of this standard will be released in 2013. A company can specify ISO standards when it purchases software from a supplier or use ISO guidelines for in-house software development to ensure that the final result measures up to ISO standards.
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A(n) __________ is a special type of linked list in which insertions occur at the rear and deletions occur at the front of the list.
a. queue b. stack c. array d. file
The standard currency unit of measurement is the same for the United States as it is for Europe
Indicate whether the statement is true or false
The table Faculty has 60,000 rows, each row occupies 100 bytes, and the database page size is 4 k bytes. Assuming pages in the index and data ?les are 100% occupied, estimate the number of page transfers required for the following SELECT statement in each of the cases listed below.
``` SELECT F.DeptId FROM Facu lty F WHERE F.Id = ’111111111’ ``` a. The table has no index. b. The table has a clustered B+ tree index on Id. Assume a (nonleaf) index entry has 20 characters. c. The table has an unclustered B+ tree index on Id. Assume a (nonleaf) index entry has 20 characters. d. The table has an unclustered B+ tree index on (Id, DeptId). Assume that an index entry now has 25 characters. e. The table has an unclustered B+ tree index on (DeptId, Id). Assume that an index entry now has 25 characters.
____ view is useful when you are working with a complex animation and you want to see how the objects from the various layers overlap each other.
A. Index B. Overlap C. Outline D. Preview