The only way to access the data in a database is through the DBMS. a. True b. False The correct answer and explanation is : The correct answer is a. True. Explanation: A Database Management System (DBMS) is the software that provides an interface between users or applications and the underlying database. It is the […]
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Metadata describe the data characteristics and the set of relationships that links the data found within the database. a. True b. False The correct answer and explanation is : Correct Answer: a. True Explanation: Metadata can be thought of as “data about data.” In the context of databases, metadata describes the characteristics of the stored
Data constitute the building blocks of information. a. True b. False The correct answer and explanation is : Correct Answer:a. True Explanation: Data indeed constitute the building blocks of information. Data are raw, unprocessed facts that by themselves may have little meaning. They can come in many forms—numbers, text, images, audio, etc. Without context, data
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When data are entered into a form and saved, they are placed in the underlying database as knowledge. a. True b. False The correct answer and explanation is : The correct answer is: b. False Explanation: When data are entered into a form and saved, they are placed into the underlying database as data, not
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Which of the following is no longer considered valid? a. the ptolemaic systemb. the copernican systemc. Kepler’s laws of planetary motiond. Newton’s law of gravity The correct answer and explanation is : The correct answer is: a. the Ptolemaic system Explanation: The Ptolemaic system, developed by Claudius Ptolemy in the 2nd century AD, described the
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Data is the result of processing raw facts to reveal its meaning. a. True b. False The correct answer and explanation is : The correct answer is: b. False Explanation (around 300 words): Data and information are closely related concepts, but they are not the same. Data refers to raw facts, figures, or observations that
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Which of the following best avoids a long lead-in? A This is to advise you that we will send the information you requested. B Yes, we will send the information you requested. C I am writing this letter to inform you that we will send the information you requested. D You may be interested to
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A tank initially contains 200 gallons of water in which 50 lbs of salt are dissolved. A salt solution containing 0.5 lb of salt per gallon is poured into the tank at a rate of 1 gal/min. The mixture in the tank is stirred and drained off at the rate of 2 gal/min.a) Find the
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Which of the following statement DOES NOT describe a continuous random variable? A. Height of students in a certain class B. The average weight of chicken each day C. The number of towns belong to Quezon Province D. The distance travelled by a delivery van in an hour The correct answer and explanation is :
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Draw a six-carbon alkyne that can exist as diastereomers. You do not need to specify wedge or dashed bonds The correct answer and explanation is : Alright, here’s the direct answer first: A six-carbon alkyne that can exist as diastereomers is:3-Hexyne-2,4-diol, or drawn structurally: Explanation (about 300 words): To find a six-carbon alkyne that can
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