CBSE Class 11 Computer Science Boolean Algebra MCQs

Question. Boolean Algebra is also called
a) Switching algebra
b) Arithmetic algebra
c) Linear algebra
d) Algebra

Answer : A

Question. Which of the following is/are the universal logic gates?
a) OR and NOR
b) AND
c) NAND and NOR
d) NOT

Answer : C

Question. Boolean algebra is define as a set of ______________
a) One value
b) Two value
c) Three value
d) Four value

Answer : B

Question. The base of hexadecimal number system is
a) 6
b) 8
c) 16

d) 10

Answer : C

Question. One nibble contains the number of bits equivalent to
a) 3
b) 4
c) 8
d) 16

Answer : B

Question. When we convert 0010010100 binary to octal. Then the solution is :
a) 201
b) 226
c) 224
d) 161

Answer : C

Question. ISCII can represent ______bit character
a) 5
b) 6
c) 7
d) 8

Answer : D

Question. The ASCII is capable to encode characters of any language.
a) True
b) False

Answer : B

Question. The ASCII was develolped in _________.
a) 1950s
b) 1960s
c) 1970s
d) 1980s

Answer : B

Question. DE Morgan’s law states that
a) (AB)’ = A’ + B’
b) (A + B)’ = A’ * B
c) A’ + B’ = A’B’
d) (AB)’ = A’ + B

Answer : C

Question. A __________ gate gives the output as 1 only if all the inputs signals are 1.
a) AND
b) OR
c) EXOR
d) NOR

Answer : A

Question. Boolean algebra is an algebraic structure with two arithmetic operations.
a) Addition and subtraction
b) Subtraction and multiplication
c) Addition and multiplication
d) Addition and division

Answer : C

Question. The number of digit in binary number systems are
a) 10
b) 2
c) 4
d) 6

Answer : B

Question. How many number of digits are there in octal number system
a) 6
b) 9
c) 5
d) 8

Answer : D

Question. Convert hexadecimal (FACE)16 to its equivalent binary
a) 1111101011001110
b) 0011101011010011
c) 1100111111100011
d) 101010101101111

Answer : A

Question. Every keyboard present on the key is mapped to a unique code.
a) True
b) False

Answer : A

Question. ASCII uses _______ bits to represent characters.
a) 5
b) 6
c) 7
d) 8

Answer : C

Question. Which gate returns true if both inputs are similar otherwise false.
a) NAND
b) NOR
c) XOR
d) None of the above

Answer : B

Question. he symbol + in Boolean is also known as the ____________ operator.
a) AND
b) OR
c) EXOR
d) NOR

Answer : B

Question. NAND is a complement of
a) AND
b) OR
c) NOT
d) XOR

Answer : A

Question. Which out of the following binary number is equivalent to decimal number 24.
a) 11011
b) 11000
c) 11111
d) 11001

Answer : B

Question. Conversion of hexadecimal number (69)16 to octal equivalent will be
a) 451
b) 351
c) 251
d) 151

Answer : D

Question. Which of the following encoding scheme is commonly used for encoding scheme?
a) ASCII
b) ANSI
c) ISCII
d) UNICODE

Answer : A

Question. Each cell of the table contains a character along with its equivalent ________ value in Unicode table for the Devanagari script.
a) decimal
b) binary
c) hexadecimal
d) octal

Answer : C

Question. The expression of a NAND gate is_______
a) A.B
b) A’B+AB’
c) (A.B)’
d) (A+B)’

Answer : C

Question. When we convert 10010 binary numbers to decimals. Then the solution is :
a) 20
b) 18
c) 14
d) 16

Answer : B

Question. Name the number system which uses alphabets as well as numerical.
a) Binary number system
b) octal number system
c) Decimal number system
d) Hexadecimal number system

Answer : D

Question. The result after converting the binary number (100011)2 to decimal will be
a) 30
b) 43
c) 35
d) None of the above

Answer : C

Question. The __________ provides a unique number for every character for various devices like servers, desktop, mobile and operating system linux, windows, iOS or software application.
a) ASCII
b) ANSI
c) ISCII
d) UNICODE

Answer : D

Question. ISCII was developed in ________.
a) 1950s
b) 1960s
c) 1970s
d) 1980s

Answer : D

Question. In Boolean algebra 23 would have
a) Three value
b) Four value
c) Six value
d) eight value

Answer : D

Question. The octal equivalent of (13)10 is
a) 18
b) 14
c) 15
d) 16

Answer : C

Question. Convert hexadecimal (EB4A)16 to its equivalent octal
a) 165512
b) 156641
c) 165511
d) 165012

Answer : A

Question. The gate which is used to reverse the output obtained is _____
a) NOR
b) NAND
c) EXOR
d) NOT

Answer : D

Question. Convert (22) from octal to its corresponding decimal equivalent.
a) 20
b) 18
c) 14
d) 81

Answer : B

Question. Convert the binary number (100110)2 to hexadecimal equivalent is give
a) 46
b) 36
c) 26
d) 34

Answer : C

Question. Which of the following is not a commonly used encoding scheme?
a) UTF-8
b) UTF-16
c) UTF-34
d) UTF-64

Answer : D