1. Which of the following is NOT available with a half adder?

   A) Sum B)Carry In C)Carry Out D)None of the above

2. For an 8x1 multiplexer, how many control signals/inputs are in need?

A) 1 B) 2 C) 3 D) 4

3. How many outputs are there for a decoder with 4 inputs (assuming no extra control signals/inputs)?

A) 4 B) 8 C) 12 D) 16

4. After a logic right-shift (by one position), a given sequence 1100 1110 turns into

A) 1100 1110 B) 0110 0111 C) 1110 0111 D) 1001 1100

5. After a logic left-shift (by two positions), a given sequence 1100 1110 turns into

A) 1001 1100 B) 1001 1101 C) 0011 1000 D) 0011 1001

6. After an arithmetic right-shift (by one position), a given sequence 1100 1110 turns into

A) 1100 1110 B) 0110 0111 C) 1110 0111 D) 1001 1100

7. Which of the following shifting operations may cause an overflow?

A) Logic left-shift B) Logic right-shift C) Arithmetic left-shift D) Arithmetic right-shift