What is a VSAT satellite?
What will be an ideal response?
A major change in satellite occurred with the emergence of a technology known as a Very
Small Aperture Terminal (VSAT) that uses dishes less than three meters in diameter. A typical VSAT
antenna is less than one meter in diameter.
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The part of the computer that allocates memory and processor time is the ____________.
Fill in the blank(s) with the appropriate word(s).
Suppose we do not require that all attributes in the primary key are non-null and instead request that, in every tuple, at least one key (primary or candidate) does not have nulls in it. (Tuples can have nulls in other places and the non-null key can be di?erent for di?erent tuples.) Give an example of a relational instance that has two distinct tuples that might become one once the values for all nulls become known (that is, are replaced with real values). Explain why this is not possible when one key (such as the primary key) is designated to be non-null for all tuples in the relation.
What will be an ideal response?
The logical function NOT takes only one argument and tests one condition
Indicate whether the statement is true or false
What are the major components of contingency planning?
What will be an ideal response?