Efficiently organizing digital information on the virtually unlimited shelf space of one's hard drive or a server on the Internet so that messages, documents, videos, or other digital information may be easily located and retrieved becomes an important task. Discuss the organization of digital information.
What will be an ideal response?
There are two popular approaches to organizing digital information: hierarchical and nonhierarchical. A hierarchical organization arranges and classifies each item in a relationship to the others as being above, below, or at the same level, such as in an outline, or as files within folders stored on your hard drive. A nonhierarchical organization allows information to be categorized in an unlimited number of ways by using tags, or labels, to describe items. Unrelated items become related to each other when they are described with the same tags. Locating information with nonhierarchical organization involves searching for a tag and examining all of the information associated with that tag. Dmoz is a hierarchical directory of Web content, and Delicious provides nonhierarchical access to Web content.
Users of Dmoz, a systematic, open directory of Web content, who are interested in articles about Entertainment must click the Arts topic and then find Entertainment as a subtopic of the Arts topic. Users would continue following links to lower levels of the hierarchy until they reach individual articles. The top-level home page lists the three most popular subtopics of Arts. The Top link at any level returns the user to the top-level home page.
Users of Delicious, a nonhierarchical directory of Web content, see a tag cloud view of popular topics on the Delicious Explore Everyone's Tags page. A tag cloud, or tagroll, is a visualization in which more popular or more frequently used tags are displayed in a larger font size. Many tag-based Web sites display their most popular tags using a tag cloud, in which each tag is a hyperlink to a Web page that has been associated with that tag.
Clicking the "photography" tag displays a list of bookmarks, or tagged Web pages, about photography. Entering a keyword in the search box will result in a list of links to pages that have been tagged with your keyword.
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Can you confirm that link state databases are identical? Compare the output of the command show ip ospf databases from the Cisco routers and the Linux PCs.
What will be an ideal response?
A(n) ____ has a simple format, with three sections: name, properties, and methods.
A. screen form B. class diagram C. access modifier D. graphical user interface
When writing C# code, how do you indicate a namespace?
A. You must specify the namespace by using the "namespace" keyword, followed by the namespace. B. You must use the "declare namespace" keywords, followed by the namespace. C. You must utilize the using clause, or using directive, by specifying "using", followed by the namespace. D. You must use create a file called "namespaces", and include all namespace code in this file. Then, the namespace can be used by name in your program.
Which of the following is an example of a false negative?
A. The IDS does not identify a buffer overflow B. Anti-virus identifies a benign application as malware. C. Anti-virus protection interferes with the normal operation of an application. D. A user account is locked out after the user mistypes the password too many times.