31. The number of binary bits required to represent a hexadecimal digit is

A. 3

B. 4

C. 6

D. 8

E. None of the above

32. Instead of counting with binary numbers, a ring counter uses words that have a single high _____

A. bytes

B. bit

C. gate

D. chip

E. None of the above

33. Multiplication of 111_{2} by 101_{2} is

A. 110011_{2}

B. 100011_{2}

C. 111100_{2}

D. 000101_{2}

E. None of the above

34. For what logic gate the outputs in complement of the input?

A. NOT

B. AND

C. OR

D. XOR

E. None of the above

35. What is the decimal equivalent of 2^{10}?

A. 4096

B. 1024

C. 1000

D. 16

E. None of the above