Why should a power supply be rated about 30 percent higher than expected needs?
What will be an ideal response?
Power supplies that run at less than peak performance last longer and don't overheat. In addition, a power supply loses some of its capacity over time. Also, don't worry about a higher-rated power supply using too much electricity. Components only draw what they need. For example, a power supply rated at 1000 watts and running at a 500 watts draw will last longer and give off less heat than a power supply rated at 750 watts and running at a 500 watts draw.
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What string lists the protocol that should be used to access a database, the name of the database, and potentially other items?
a. JDBC driver b. Database URL c. JDBC locator d. Database specifier
There are many specialized blogs that are divided by categories
Indicate whether the statement is true or false
_____ is a widely used method of visualizing and documenting an information system.
A. Unified Modeling Language (UML) B. The Java Virtual Machine (JVM) C. The UNiplexed Information and Computing System (UNIX) D. Multimedia Logic (ML)
A JOIN that returns all rows from the first table matched with all rows from a second table is known as a what?
a. INNER JOIN b. OUTER JOIN c. NATURAL JOIN d. CROSS JOIN