Options: a. Foreign key fields don't allow duplicate values
b. In primary key field you can enter duplicate value
c. In an indexed field you may or may not enter duplicate value depending upon setting
d. All statements are true
The first industrial robot for commercial uses was installed in a Japanese plant at Toyota Automatic Loom Company, the parent company of the Toyota Automobile Group. When did this robot go into operation?
Options: June 1965, November 1966, December 1967, April 1970
Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?