MC Providing a foreign-key value that does not appear as a primary-key value in another table breaks the_________ .
a) Rule of Entity Integrity.
b) Rule of Referential Integrity.
c) Rule of Database Integrity.
d) None of the above.
b) Rule of Referential Integrity.
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The collections framework algorithms are __________, i.e., each of these algorithms can operate on objects that implement specified interfaces without concern for the underlying implementations.
a. stable. b. lexicographical. c. polymorphic. d. implementation dependent.
The data type Unix uses to record login records is called a
A. struct utmp B. struct pwd
Write a script that outputs HTML text that displays the following checkerboard pattern:
Your program may use only three output statements, one of the form
```
document.write( "* " );
```
one of the form
```
document.write( " " );
```
and one of the form
```
document.writeln( "
" );
```
[Hint: Repetition structures are required in this exercise.]
What are the steps in the engineering process model for developing MobileApps?
What will be an ideal response?