Given the following clock and input signals, please trace and select the correct output signal for a positive edge triggered D flip flop. clk Input D clk ○ Input D None of the others clk O Input D clk Input D Given the following clock (clk) and input (D) signals, please select the correct output signals for a positive level sensitive D latch, a positive edge triggered D flip-flop (D ff), and a negative edge triggered D flip-flop. clk Input D (a) clk (b) (c) Input D Positive level sensitive D latch Positive edge triggered D ff Negative edge triggered D ff clk Input D Positive level sensitive D latch Positive edge triggered D ff Negative edge triggered D ff clk (d) Input D Positive level sensitive D latch Positive edge triggered D ff Negative edge triggered D ff clk Input D Positive level sensitive D latch Positive edge triggered D ff Negative edge triggered D ff (e) None of the above

How do you make a chain of precedents?

4. Find all instructors in Finance department who have taught some course in 2008. 5. Find all students from Physics department who took course 'CS-319'.

How does denormalization differ from normalization, and what are the scenarios where denormalization is appropriate?