caching
Throw water on it. The logical answer.
The internal schema represents the physical storage structure of data, the external schema represents how different users view the data, and the conceptual schema defines the logical structure of the entire database. Logical data independence means that the conceptual schema can change without affecting the external schemas, while physical data independence means that changes in the physical storage structures do not affect the conceptual or external schemas.
planning,writting,revising,external feedback
2 must always equal 2. To have otherwise is a logical contradiction, and an impossibility.
All this is done by theArthimatical Logical Unit(ALU) in theCPU.
The internal test would be logical consistency. The external test would be observation of the real world.
The internal test would be logical consistency. The external test would be observation of the real world.
External coherence refers to the clear and logical connection between a piece of writing and external sources such as research studies, data, or facts. It demonstrates that the information presented is well-supported by credible sources and adds credibility to the writing.
In Windows operating systems, the drive letter (F in this example) is assigned to a logical partition of an internal, external or even virtual device, so it could stand for any of these.
Science is orderly knowledge proven by empirical evidence obtained through observation, experimentation, and logical reasoning.
Logical data independence refers to the ability to modify the conceptual schema without changing the external schemas or application programs. In contrast, physical data independence allows changes to the internal schema – like indexes and storage structures – without affecting the conceptual or external schemas.
Q No. 3: (a) How MMU is used to address the physical and logical cache arrangement? Explain the difference between Least recently used and least frequently used replacement algorithm.