Computer Science Exams quiz

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Sample questions

• Determine the output of the following program READ (2, 3) I, J 3FORMAT (2I11) IF (I - J) 5,6,6 6WRITE (3,10) I 10FORMAT (1X, I11) GO TO 7 5WRITE (3,10) J 7STOP
• Consider an additive white Gaussian noise channel with an expected output power constraint $P=2$. Thus $Y = X + Z$, $Z \sim N(0, 1)$, $Z$ is independent of $X$, and $E(Y)^2 \leq 2$. Find the channel capacity in bits.
• In Chord, assume the size of the identifier space is 16. The active nodes are N3, N6, N8 and N12. Show all the target key (in ascending order, ignore the node's identifier itself) for N6.

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