The ____ of a variable means where a variable can be referenced within a program.
A. range
B. life
C. versatility
D. scope
Answer: D
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The element in a foreach statement _____.
a) must be of type int b) must be of (or convertible to) the same type as the collection or array type c) must be of type ArrayList d) None of the above.
Cell A2 contains the regular price $100. Cell B2 contains the discount rate 15%. Cell C3 contains =A2*(1-B2) to calculate the sale price of $85. Which of the following formulas produces the same result?
What will be an ideal response?
Describe the two greatest challenges for e-commerce.
What will be an ideal response?
A _______________is a smart card reader that includes a PIN pad, a biometric reader, or both to allow multi-factor authentication.
A. multitechnology card B. multiapplication card C. multifactor reader D. multitechnology reader E. multimodal