In the context of data communication, which of the following is true of e-collaboration?

A) It improves customer service.
B) It reduces decision makers' effectiveness.
C) It increases the cost involved in data communication.
D) It promotes face-to-face interactions among individuals.

A

Business

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Which of the following is true of leverage?

A) It refers to the effects that operating and financial fixed costs have on the returns that shareholders earn. B) It is associated with risks which are out of the control of managers. C) It includes the effect of operating fixed costs on the returns of shareholders and not the financial fixed costs. D) It is used to evaluate the profitability associated with various levels of sales.

Business

The 802.11i standard defines security and authentication mechanisms at the MAC sublayer

Indicate whether the statement is true or false

Business