In ______, the left and right subtrees of any node have heights that differ by at most 1.

a. all trees
b. all binary tress
c. n-ary trees
d. balanced binary trees


d. balanced binary trees

Computer Science & Information Technology

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How many and what kind of variables (primitive or object) are created in the code below?

``` > String fileName = FileChooser.pickAFile(); // fileName is an object variable. > Picture p1 = new Picture(fileName); // p1 is an object variable. > p1.show(); ```

Computer Science & Information Technology

Which technique involves each participant speaking or passing when it is his or her turn?

A. stratified sampling  B. unstructured brainstorming C. structured brainstorming D. systematic sampling

Computer Science & Information Technology

By creating a __________, a user can cause a series of command language commands to be executed in sequence.

a. batch file b. command file c. primitive file d. source file

Computer Science & Information Technology

A program feature that grants access to certain functions only to visitors with the appropriate rights is a(n):

A) administration function. B) authentication value. C) session form. D) password.

Computer Science & Information Technology