Sunday, 10 May 2015

Q 4,paper 3,j12.What is Granularity ?


options (A) The size of database
(B) The size of data item
(C) The size of record
(D) The size of file
Answer (B) size of data item.
Explanation. Granularity is the extent to which a material or system is composed of distinguishable pieces or grains. It can either refer to the extent to which a larger entity is subdivided, or the extent to which groups of smaller indistinguishable entities have joined together to become larger distinguishable entities. For example, a kilometer broken into centimeters has finer granularity than a kilometer broken into meters. In contrast, molecules of photographic emulsion may clump together to form distinct noticeable granules, reflecting coarser granularity. Composed or appearing to be composed of granules or grains: granular sugar; granular snow. Granularity means having a high level of detail, as in a set of data: a more granular report that shows daily rather than weekly sales figures.

No comments:

Post a Comment

Note: only a member of this blog may post a comment.