A __________ is a special field that plays a specific role in a table.
a. Table
b. Record
c. Field
d. Key
e. View
d. Key
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The Ariane 5 satellite launch vehicle failed because
a. a faulty on-board computer caused the other computers in the network to crash repeatedly. b. a bad sensor fed faulty information into the flight control computer, causing it to fail. c. the rocket’s on-board computer sent back faulty information to ground control, causing the human controllers to destroy the rocket. d. code that worked correctly on the Ariane 4 failed on the Ariane 5 e. a software failure caused the rocket to self-destruct when in actuality the rocket’s flight was going perfectly.
When the value of a variable is changed as the result of carrying out some operation on it, it is called _______________.
Fill in the blank(s) with the appropriate word(s).