Chapter 2 – Binary System

Binary System – MCQ’s

  1. Expression (A + B). (A + C) is equal to:

(a) A + (B.C)  ✓

(b) A. B + A.C

(c) A. (B.C)

(d) A+ (B+C)

  1. The order of application of two separate terms is not important in:

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(a) Associative Law

(b) Commutative Law ✓

(c) Distributive Law

(d) Identity Law

  1. “Is it cold outside” is:

(a) Boolean Proposition ✓

(b) Categorical Proposition

(c) Moral Propositions

(d) None of above

  1. Number “17” is equal to ____ in binary system.

(a) 10000

(b) 10110

(c) 10001 ✓

(d) 10100

  1. 1 Petabyte is equal to _____ .

(a) (1,024)4 bytes

(b) (1,024)6 bytes

(c) (1,024)5 bytes       ✓

(d) (1,024)7 bytes

  1. Hexadecimal system has total ______ numbers.

(a) 17

(b) 16 ✓

(c) 18

(d) 15

  1. Temporary memory is ____ and permanent memory is ____.

(a) Volatile, Non-volatile ✓

(b) Slow, Fast

(c) Low, High

(d) All of these

  1. Data to a processor is provided through:

(a) ROM

(b) RAM ✓



  1. At least ____ byte is required to store any piece of information in a computer’s memory.

(a) Five

(b) Three

(c) One ✓

(d) Two

  1. Which is used to assemble more than one propositions into one proposition?

(a) Literal

(b) Simple proposition

(c) Proposition

(d) Compound proposition ✓

  1. In primary and secondary storages, data is stored in the form of:

(a) Bytes ✓

(b) Bit

(c) Nibble

(d) GB

  1. According to ____ law there is no change in results if priority of expressions is changed.

(a) Associative ✓

(b) Commutative

(c) Duality

(d) Complement

  1. Which number system consists of 0s and 1s?

(a) Decimal

(b) Hexa

(c) Binary ✓

(d) Octal

  1. Which language is understood by the computer?

(a) Binary language   ✓

(b) HLL

(c) High level

(d) Middle level

  1. Which number system has base 10 as it uses ten digits from 0 to 9?

(a) Decimal ✓

(b) Hexa

(c) Binary

(d) Octal

  1. Which number system has base 2?

(a) Decimal

(b) Hexa decimal

(c) Binary ✓

(d) Octal

  1. Which number system has base 16?

(a) Decimal

(b) Hexadecimal ✓

(c) Binary

(d) Octal

  1. Which number system has base 10?

(a) Binary

(b) Decimal ✓

(c) Hexadecimal

(d) Octal

  1. Which is a physical device capable of storing information temporarily or permanently?

(a) Cell

(b) Computer memory ✓

(c) Voltage

(d) Non voltage

  1. A device which holds the data as long as it has power supply connected to it is called:

(a) HDD

(b) Storage

(c) Volatile memory ✓

(d) Non volatile

  1. A device which can hold data even if it is not connected to any power source is called:

(a) Non – Volatile Memory ✓

(b) Volatile Memory

(c) Both A and B

(d) Central memory

  1. In Boolean algebra “AND’ operation is denoted by:

(a) . ✓

(b) *

(c) +

(d) /

  1. In Boolean algebra ‘OR’ operation is denoted by:

(a) *

(b) /

  1. C) + ✓

(d) .

  1. In Boolean algebra plus sign is used for operation.

(a) OR ✓

(b) AND

(c) NAND

(d) NOT

  1. An inverter is called a:

(a) AND

(b) NAND

(c) NOT ✓

(d) NOR

  1. Which table is used to show whether the statement is true or false?

(a) Value table

(b) Boolean table

(c) Truth table ✓

(d) Central table

  1. A number system is the system for representation of ____ data.

(a) Value

(b) Boolean

(c) Truth

(d) Numeric ✓

  1. The number system we use in our daily life is the:

(a) Decimal number system ✓

(b) Binary number system

(c) Octal number system

(d) Numeric

  1. Your name is in the form of alphabets, but for a computer each alphabet has some ____ value.

(a) Binary ✓

(b) Decimal

(c) Octal

(d) Numeric

  1. The binary value of the letter ‘A’ is 01000001 and its decimal value is:

(a) 67

(b) 66

(c) 69

(d) 65 ✓

  1. To convert a decimal number to binary, we divide the number by _____ and take quotient and remainder.

(a) 8

(b) 16

(c) 2 ✓

(d) 12

  1. To convert a decimal number to hexadecimal, we divide the number by _____ and take quotient and remainder.

(a) 8

(b) 16 ✓

(c) 2

(d) 12

  1. To convert a hexadecimal number to binary, simply convert each hexadecimal digit to____ digits binary value.

(a) Four ✓

(b) Two

(c) Three

(d) Five

  1. Which is an example of volatile memory?

(a)RAM ✓

(b) ROM

(c) Hard disk

(d) Floppy disk

  1. As soon as the power supply is disconnected, all the data in___ is cleared.

(a)RAM ✓

(b) ROM

(c) Hard disk

(d) Floppy disk

  1. Hard drives, flash drives and memory cards are example of memory:

(a) Non-volatile ✓

(b) Volatile

(c) Hard disk

(d) Floppy disk

  1. Digital computers store data in _____form.

(a) Numeric

(b) Decimal

(c) Octal

(d) Binary ✓

  1. All the characters on your keyboard has an associated code in binary. This code is called:

(a) BCD

(b) Unicode

(c) ASCII ✓


  1. ASCII stands for:

(a) American Standard code

(b) American Standard Code for Information Interchange. ✓

(c) Information code

(d) Standard institute

  1. Any computing hardware that is used for storing, porting and extracting data, is called a:

(a) Storage device ✓

(b) ROM

(c) PROM

(d) SRAM

  1. Which is an example of primary memory?

(a) Floppy disk

(b) CD-ROM

(c) Hard disk

(d) RAM ✓

  1. The smallest amount of data to be stored in computer’s memory is a 0 or 1 is called:

(a) Byte

(b) KB

(c) Bit ✓

(d) GB

  1. Which is a group of eight bits, enough space to store single ASCII character?

(a)Byte ✓

(b) KB

(c) Bit

(d) GB

  1. (1,024) TB or (1,024)5 bytes is equal to:

(a) 1 GB

(b) TB

(c) 1 KB

(d) 1 PB ✓

  1. IKB = _______ bytes.

(a) 1,024 ✓

(b) 200

(c) 300

(d) 400

  1. 1MB = _____ bytes.

(a) (1,024)5 bytes

(b) (1,024) KB or (1,024)2? ✓

(c) 3000

(d) 400

  1. 1GB = (1,024) MB or_____ bytes.

(a) (1,024)5 bytes

(b) (1,024) KB or (1,024)2?

(c) 8

(d) (1,024)3 ✓

  1. 1TB = (1,024) GB or ____bytes.

(a) (1,024)5 bytes

(b) (1,024) KB or (1,024)2

(c) (1,024)4 ✓

(d) (1,024)3

  1. A _____ is a sentence that can either be true or false.

(a) Algebra

(b) Variable

(c)Proposition ✓

(d) Constant

  1. Every proposition takes one of two values true or false, and these values are called the:

(a) Algebra

(b) Variable

(c) Proposition

(d) Truth values ✓

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