Consider the three transactions t1, t2, and t3, and the schedules s1 and s2 given below.

draw the serializability (precedence) graphs for s1 and s2, and state whether each schedule is serializable or not.

if a schedule is serializable, write down the equivalent serial schedule(s).

t1: r1 (x); r1 (z); w1 (x);

t2: r2 (z); r2 (y); w2 (z); w2 (y);

t3: r3 (x); r3 (y); w3 (y);

s1: r1 (x); r2 (z); r1 (z); r3 (x); r3 (y); w1 (x); w3 (y); r2 (y); w2 (z); w2 (y);

s2: r1 (x); r2 (z); r3 (x); r1 (z); r2 (y); r3 (y); w1 (x); w2 (z); w3 (y); w2 (y);

Coca-cola was primarily known for its core competencies in marketing, bottling, and distributing aerated drinks. however, with the success of gatorade, coca-cola developed competencies in the development and marketing of its own sports drink, powerade. which of the following is true of coca-cola? a. it is leveraging existing core competencies to improve current market position. b. it is building new core competencies to protect and extend its current market position. c. it is redeploying and recombining existing core competencies to compete in markets of the future. d. it is targeting the chasm between the early adopter and early majority market segment.