Options: a. Do not enter a value in the foreign key field of a child table if that value does not exist in the primary key of the parent table
b. Do not enter a value in the primary key field of chield table if that value does not exist in the primary key of the parent table
c. Do not enter a value in the foreign key field of a parent table if that value does not exist in the primary key of the child table
d. All of above
Options: The design of the screen the user will see and use to enter or display data
B. System analysis defines the format and type of data the program will use
C. System Analysis involves creating formal model of the problem to be solved
D. None of the above
Options: a user computer system, a processor in a large-scale computer that executes operating system instructions, a minicomputer that relieves main-frame computers at a computer centre of communications control functions, preliminary processor of batch jobs.
A transitive dependency is which of the following?
Options: A functional dependency between two or more key attributes., A functional dependency between two or more nonkey attributes., A relation that is in first normal form., A relation that is in second normal form.
Options: a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address, a TCP/IP high level protocol for transferring files from one machine to another, a protocol used to monitor computers, a protocol that handles error and control messages