A __________ is a column (or columns) that uniquely identifies each row of data in a database.
a. selector
b. main key
c. identifier
d. primary key
d. primary key
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Opening a file for output means that
(A) data may be stored onto the disk. (B) data may be read from the disk. (C) anything that appears as output on the screen is written to the disk. (D) data may be read from and stored onto the disk.
Which of the following keywords allows a subclass to access a superclass method even when the subclass has overridden the superclass method?
a. base. b. this. c. public. d. super.
You can add more RAM (random-access memory) and ROM (read-only memory) to a computer by installing additional memory cards on the motherboard.
Answer the following statement true (T) or false (F)
Why is it important to know about a firm’s work before interviewing with that firm?
What will be an ideal response?