Which of the following represents an entity in a relational database model?
a. A column
b. A row
c. An attribute
d. A degree
b. A row
The relational database model is a simple but highly useful way to organize structured data into collections of two-dimensional tables called relations. Each row in a table represents an entity (person, place, or thing) in a database.
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In graph terms, what is a path that begins and ends at the same vertex?
A. a simple path B. an undirected path C. a cycle D. a directed path
Match each term in the second column with its correct definition in the first column by writing the letter of the term on the blank line in front of the correct definition.
_____ 1. Programs that direct the computer to carry out specific tasks; for example, doing word processing, playing a game, or computing numbers on a worksheet. _____ 2. Software that has its source code published and made available to the public, enabling anyone to copy, modify, and redistribute it without paying fees. _____ 3. Graphics, video, animation, and sound. _____ 4. An algorithm used to reduce the size of media files. _____ 5. A single point on a display screen. _____ 6. A technology that is applied to digital media files, such as music, eBooks, and videos, to impose restrictions on the use of these files. _____ 7. Software offered in trial form or for a limited period that allows the user to try it out before purchasing a license. _____ 8. Contract between the software user and the software publisher. _____ 9. Part of cloud computing: the delivery of applications over the Internet. _____ 10. An online programming environment in which to develop, deploy, and manage custom web applications. A Application software B Codec C Digital rights management (DRM) D EULA (end-user license agreement) E Media F Open source G Pixel H Platform-as-a-Service (PaaS) I Shareware J Software-as-a-Service (SaaS)
____________ are reserved for use by Java.
Fill in the blank(s) with the appropriate word(s).
If a field is shortened after being populated, the danger is that some information might be "cut off" or ________
Fill in the blank(s) with correct word