Which key can you press to cancel a dialog box?

A) Escape B) Shift C) Alt D) Option


A

Computer Science & Information Technology

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The cost of computing power and communications bandwidth has been

a) about the same each year. b) going up. c) going down dramatically. d) undetermined.

Computer Science & Information Technology

What is the value of variable s after execution of the program fragment below?

``` char h[6] = "wild"; char p[6] = "crazy"; char s[10]; strcpy(s, h); strcat(s, p); ``` a. "wild crazy" b. "wild craz" c. "wildcrazy" d. The value of s is undefined. e. none of the above.

Computer Science & Information Technology

The Fresnel zone is the dispersal pattern of waves as they travel from sending to receiving antennas.

Answer the following statement true (T) or false (F)

Computer Science & Information Technology

Given the following relation schema and its functional dependencies:

![15241|384x159](upload://OgujQ0vW3Bn30kr8wc01w1z979.png) (a) Specify candidate keys and state the primary key. (b) Assuming that the relation is in first normal form (1NF), describe and illustrate the process of normalising the relation schema to second (2NF) and third (3NF) normal forms. Identify the primary and foreign keys in your schemas.

Computer Science & Information Technology