Which of the following is NOT a version of Windows?

A. XP
B. Vista
C. Safari
D. 7


Answer: C

Computer Science & Information Technology

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Use the unset (Sobell, page 314) builtin to remove myvar. Show that myvar is not available in the interactive shell or in the environment.

What will be an ideal response?

Computer Science & Information Technology

For help with specific context, click within a keyword within the VBA Code window and press ________

A) F1 B) F5 C) Shift + Enter D) Ctrl + Alt + Delete

Computer Science & Information Technology

In your planning phase, the rule of thumb is to ensure that your site is accessible to 80-85% of potential users.

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

Computer Science & Information Technology

Write a program that reads a string from the keyboard and tests whether it contains a valid date. Display the date and a message that indicates whether it is valid. If it is not valid, also display a message explaining why it is not valid. The input date will have the format mm/dd/yyyy. A valid month value mm must be from 1 to 12 (January is 1). The day value dd must be from 1 to a value that is appropriate for the given month. September, April, June, and November each have 30 days. February has 28 days except for leap years when it has 29. The remaining months all have 31 days each. A leap year is any year that is divisible by 4 but not divisible by 100 unless it is also divisible by 400.

This project provides an opportunity to introduce format checking. The solution uses case logic in combination with compound Boolean expressions.

Computer Science & Information Technology