The Maintenance and Evolution Phase of the Database Life Cycle

question 2

Multiple Choice

The maintenance and evolution phase of the Database Life Cycle (DBLC) involves _____.

• A) defining objectives
• B) introducing changes
• C) testing the database
• D) installing the DBMS

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Definitions:

Benthic Zone

The ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and sub-surface layers.

Littoral Zone

The shallow nearshore area of a body of water, where sunlight can reach the bottom, supporting diverse aquatic plants and animals.

Limnetic Zone

The open surface waters in a freshwater habitat, away from the shore, where there is enough light penetration to support photosynthesis.

Profundal Zone

The deep zone of a body of water, below the range of effective light penetration, where photosynthesis cannot occur.