Why should you strive to avoid data redundancy in a database?
What will be an ideal response?
Data redundancy, the unnecessary storing of duplicate data in two or more tables, should be avoided because errors may result. If a customer address, for example, were stored in two different tables, it is completely likely that an address change would be updated in one table and not the other table.
You might also like to view...
____________ routes are manually configured routes that direct all packets not specifically configured in the routing table.
Fill in the blank(s) with the appropriate word(s).
A ________ is a region of memory that the kernel guarantees will be available to a kernel thread or device driver regardless of how much memory is currently occupied.
a) page cache b) slab cache c) DMA memory d) memory pool
____ data is composed of letters, symbols, and numerals that will not be used in arithmetic operations.
A. Character B. Alphanumeric C. Digital D. All of the above.
Match the terms below with their definitions.
A. Moves an object clockwise or counterclockwise around its center point B. Built-in effect that can be applied to layers C. Creates a mirror image of the artwork D. Combining two or more layers into a single layer E. Allows you to define which areas of artwork on a single layer are visible, not visible, or partly visible