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1. Hexadecimal number system consists of _______.
A. O to 9
B. A to F
C. Both ‘1’ and ‘2’
D. Either ‘1’ and ‘2’
ANSWER:C
SOLUTION : Unlike the decimal system representing numbers using ten symbols, hexadecimal uses sixteen distinct symbols, most often the symbols “0”–”9″ to represent values 0 to 9, and “A”–”F” (or alternatively “a”–”f”) to represent values from ten to fifteen.
2. Which of the following is invalid hexadecimal number?
A. A0XB
B. A0F6
C. 4568
D. ACDB
ANSWER: B
SOLUTION:A0F6
3. The binary equivalent of decimal number 98 is _______.
A. 1110001
B. 1110100
C. 1100010
D. 1111001
ANSWER:C
SOLUTION:Binary Equivalent of Decimal Number 98 To find the binary equivalent of a decimal number, we need to divide the decimal number by 2 until we get a quotient of 0. Then, we write the remainders in reverse order to get the binary equivalent. Here are the steps to find the binary equivalent of decimal number 98: 1. Divide 98 by 2: 98 ÷ 2 = 49, remainder 0 2. Divide 49 by 2: 49 ÷ 2 = 24, remainder 1 3. Divide 24 by 2: 24 ÷ 2 = 12, remainder 0 4. Divide 12 by 2: 12 ÷ 2 = 6, remainder 0 5. Divide 6 by 2: 6 ÷ 2 = 3, remainder 0 6. Divide 3 by 2: 3 ÷ 2 = 1, remainder 1 7. Divide 1 by 2: 1 ÷ 2 = 0, remainder 1 The remainders in reverse order are 1100010. Therefore, the binary equivalent of decimal number 98 is 1100010.
Read more at: https://edurev.in/question/2048954/The-binary-equivalent-of-decimal-number-98-isa-1110001b-1110100c-1100010d-1111001e-None-of-theseCorr
4. Conversion of decimal number (71)10 _______.
A. 1110001
B. 1110100
C. 1100010
D. 1000111
ANSWER:D
SOLUTION:The binary equivalent of the decimal number \(71\) is \(1000111\).
5. What is the value of the binary number 101?
A. 3
B. 5
C. 6
D. 101
ANSWER:B
SOLUTION:For the binary number 101, the calculation is as follows: 1 * 4 + 0 * 2 + 1 * 1 = 4 + 0 + 1 = 5. Therefore, the decimal value of the binary number 101 is 5.
6. (1010)2 equivalent decimal number is_______.
A. 8
B. 9
C. 10
D. 11
ANSWER: C
SOLUTION:The decimal equivalent of the binary number \((1010)_{2}\) is \(10\).
7. MSD refers as _____________.
A. Most Significant Digit
B. Many Significant Digit
C. Multiple Significant Digit
D. Most Significant Decimal
ANSWER: A
SOLUTION: MSD stands for Most Significant Digit. It is the digit in a decimal number system that has the highest weight, or most impact on the number.
8. How many values can be represented single byte?
A. 4
B. 16
C.64
D. 256
ANSWER:D
SOLUTION: A byte can represent 256 different values. A byte is a sequence of 8 binary digits, or bits. Each digit can be thought of as a switch that is either off (zero) or on (one).
9. The binary addition 1+1+1 gives _______.
A. 111
B. 10
C. 110
D. 11
ANSWER: D
SOLUTION:Binary addition is similar to regular addition (decimal addition), with the exception that it uses a value of 2 instead of a value of 10.