NU664C EXAM 2 2026 CERTIFICATION TEST
QUESTIONS AND ANSWERS UPDATED
◉ The ______ number system is used in digital and microprocessor
circuits because of its simplicity. Answer: binary
◉ The decimal system is called a base-______ system. Answer: ten
◉ The binary system is base-______ system. Answer: 2
◉ To determine the largest value that can be represented by a given
number of places in base 2, use the following formula:_____. Answer:
highest number= 2n-1
◉ The most popular way to convert decimal numbers to binary
numbers is to progressively divide the decimal number by _____,
writing down the remainder after each division. The remainders,
taken in reverse order, form the binary number. Answer: 2
◉ To convert binary to an octal number requires dividing the binary
number into groups of _____ starting from the right. Answer: three
, ◉ The ______ number system is used primarily for entering and
reading data of microprocessor-based 4-,8-,16-,32-, and 64-bit
systems. Answer: hexadecimal
◉ ______ numbers allows the breaking of a binary number into
groups of four to reduce error when entering data. Answer:
hexadecimal
◉ The hexadecimal number system is referred to as base _____.
Answer: 16
◉ The _____ gate produces an output of 1, only when all its inputs are
1s. If any of the inputs are 0s, the output is 0. Answer: AND
◉ The ______ gate produces a 1 output if any of its inputs are 1s. The
output is a 0 if all the inputs are 0s. Answer: OR
◉ The _____ gate performs the basic operation of addition. Answer:
OR
◉ The _____ gate performs the function called inversion, or
complementation, and is commonly referred to as an inverter.
Answer: NOT
QUESTIONS AND ANSWERS UPDATED
◉ The ______ number system is used in digital and microprocessor
circuits because of its simplicity. Answer: binary
◉ The decimal system is called a base-______ system. Answer: ten
◉ The binary system is base-______ system. Answer: 2
◉ To determine the largest value that can be represented by a given
number of places in base 2, use the following formula:_____. Answer:
highest number= 2n-1
◉ The most popular way to convert decimal numbers to binary
numbers is to progressively divide the decimal number by _____,
writing down the remainder after each division. The remainders,
taken in reverse order, form the binary number. Answer: 2
◉ To convert binary to an octal number requires dividing the binary
number into groups of _____ starting from the right. Answer: three
, ◉ The ______ number system is used primarily for entering and
reading data of microprocessor-based 4-,8-,16-,32-, and 64-bit
systems. Answer: hexadecimal
◉ ______ numbers allows the breaking of a binary number into
groups of four to reduce error when entering data. Answer:
hexadecimal
◉ The hexadecimal number system is referred to as base _____.
Answer: 16
◉ The _____ gate produces an output of 1, only when all its inputs are
1s. If any of the inputs are 0s, the output is 0. Answer: AND
◉ The ______ gate produces a 1 output if any of its inputs are 1s. The
output is a 0 if all the inputs are 0s. Answer: OR
◉ The _____ gate performs the basic operation of addition. Answer:
OR
◉ The _____ gate performs the function called inversion, or
complementation, and is commonly referred to as an inverter.
Answer: NOT
