A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered?
Options: The cables are attached firmly, Â Â The external drive has been preÂ¬loaded with the appropriate software, Â Â The external drive was attached before the computer was on, Â Â The external drive is turned on
We have Market Basket data for 1,000 rental transactions at a Video Store. There are four videos for rent -- Video A, Video B, Video C and Video D. The probability that Video D will be rented given that Video C has been rented is known as ________ .
Options: the basic probability, support, lift, confidence
What is the significance of the J and K terminals on the J-K flip-flop?
Options: There is no known significance in their designations., The J represents "jump," which is how the Q output reacts whenever the clock goes HIGH and the J input is also HIGH., The letters represent the initials of Johnson and King, the co-inventors of the J-K flip-flop., All of the other letters of the alphabet are already in use.
Which of the following is correct regarding Aggregate functions?
Options: it takes a list of values and return a single values as result
B. it takes a list of values and return a list of values as result
C. it takes a single value and returns a list of values as result
D. it takes a single value and returns a single value as result
Ans:– A ,
The parts of a system may be analyzed in the sequence
Options: outputs, objective, management, information processor, input, transformation, objectives, outputs, management, information processor, input, transformation, objectives, outputs, information processor, management, input transformation, outputs, inputs, objectives, management, information processor, transformation
. Relationship can be establish between two tables by
Options: a. Drag Primary key of a table into Foreign key of another table
b. Drag Foreign key of a table into Primary key of another table
c. Drag any key of a table into any key of another table
d. All of the above
What is the main difference between a mainframe and a super computer?
Options: A) Super computer is much larger than mainframe computers
B) Super computers are much smaller than mainframe computers
C) Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently
D) Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.