Science & Technology – 200 MCQs (Page 3)

Shaktimatha Learning – Competitive Exams Special

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MCQs (81–120)

81. Role of Operating System?
A) Hardware control
B) Software control
C) Both
D) None

82. Keyboard is which type of device?
A) Output
B) Input
C) Storage
D) Network

83. Printer is which type of device?
A) Input
B) Output
C) Storage
D) Software

84. Scanner is?
A) Input device
B) Output device
C) Storage device
D) Network

85. ROM is?
A) Temporary memory
B) Permanent memory
C) Software
D) Hardware

86. ALU stands for?
A) Arithmetic Logic Unit
B) Advanced Logic Unit
C) Automatic Logic Unit
D) None

87. Cache memory is?
A) Slow memory
B) Fast memory
C) External memory
D) Storage

88. Input/Output unit is part of?
A) CPU
B) Computer system
C) Software
D) Network

89. Excel is?
A) Operating system
B) Application software
C) Hardware
D) Network

90. MS Word is?
A) Operating system
B) Application software
C) Hardware
D) Network

91. Database is?
A) Collection of data
B) Device
C) Software
D) Network

92. SQL is used for?
A) Programming
B) Database management
C) Hardware
D) Network

93. Algorithm means?
A) Step-by-step solution
B) Device
C) Software
D) Network

94. Example of programming language?
A) C
B) Java
C) Python
D) All of the above

95. Compiler does?
A) Translate code
B) Store data
C) Output
D) Input

96. Debugging means?
A) Finding errors
B) Removing errors
C) Both
D) None

97. Virus effect?
A) Damage data
B) Slow system
C) Both
D) None

98. Backup is needed for?
A) Data safety
B) Speed
C) Storage
D) Output

99. Password is used for?
A) Security
B) Storage
C) Output
D) Input

100. Login means?
A) Access system
B) Exit system
C) Storage
D) Output

101. Logout means?
A) Enter system
B) Exit system
C) Storage
D) Input

102. Social media is?
A) Communication platform
B) Device
C) Software
D) Network

103. YouTube is?
A) Search engine
B) Video platform
C) Software
D) Hardware

104. Facebook is?
A) Social media
B) Device
C) Network
D) Software

105. Twitter is?
A) Social media
B) Device
C) Software
D) Hardware

106. Email is used for?
A) Communication
B) Storage
C) Output
D) Input

107. Spam is?
A) Important mail
B) Unwanted mail
C) Data
D) Software

108. Attachment is?
A) File
B) Device
C) Software
D) Network

109. Download means?
A) Receive data
B) Send data
C) Storage
D) Output

110. Upload means?
A) Send data
B) Receive data
C) Storage
D) Input

111. Streaming means?
A) Live data viewing
B) Storage
C) Input
D) Output

112. E-commerce means?
A) Online shopping
B) Device
C) Software
D) Network

113. Digital payment means?
A) Online transaction
B) Offline transaction
C) Cash payment
D) None

114. ATM is used for?
A) Withdraw cash
B) Deposit cash
C) Both
D) None

115. Debit card is used for?
A) Payment
B) Storage
C) Input
D) Output

116. Credit card is used for?
A) Loan/payment
B) Cash
C) Storage
D) Network

117. OTP stands for?
A) One Time Password
B) One Type Password
C) Online Password
D) None

118. QR code is used for?
A) Payment
B) Storage
C) Output
D) Input

119. Blockchain is?
A) Digital ledger
B) Device
C) Software
D) Network

120. Cryptocurrency is?
A) Digital currency
B) Paper currency
C) Coin
D) None

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Answer Key (81–120)

81. C
82. B
83. B
84. A
85. B
86. A
87. B
88. B
89. B
90. B
91. A
92. B
93. A
94. D
95. A
96. C
97. C
98. A
99. A
100. A
101. B
102. A
103. B
104. A
105. A
106. A
107. B
108. A
109. A
110. A
111. A
112. A
113. A
114. C
115. A
116. A
117. A
118. A
119. A
120. A

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