Symmetric keys

a. allow the same algorithm to be used to encrypt and decrypt data
b. require the same key to be used by sender and receiver
c. require that the algorithm changes for each transmission
d. can be used in public key systems

b

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F you purchase the number of shares specified, then the beta of your portfolio will be:

You are thinking about purchasing 1,000 shares of stock in the following firms: Number of Shares Firm's Beta Firm A 100 0.75 Firm B 200 1.47 Firm C 200 0.82 Firm D 600 1.60 A) 1.16. B) 1.35. C) 1.00. D) Cannot be determined without knowing the stock prices.

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