సైన్స్ మరియు సాంకేతికం – 200 MCQs (Page 3)
Shaktimatha Learning – Competitive Exams Special
MCQs (81–120)
81. Operating System యొక్క పని ఏమిటి?
A) Hardware control
B) Software control
C) Both
D) None
82. Keyboard ఏ రకం device?
A) Output
B) Input
C) Storage
D) Network
83. Printer ఏ రకం device?
A) Input
B) Output
C) Storage
D) Software
84. Scanner ఏది?
A) Input device
B) Output device
C) Storage device
D) Network
85. ROM అంటే ఏమిటి?
A) Temporary memory
B) Permanent memory
C) Software
D) Hardware
86. ALU అంటే ఏమిటి?
A) Arithmetic Logic Unit
B) Advanced Logic Unit
C) Automatic Logic Unit
D) None
87. Cache Memory ఏమిటి?
A) Slow memory
B) Fast memory
C) External memory
D) Storage
88. Input Output unit ఏదిలో భాగం?
A) CPU
B) Computer system
C) Software
D) Network
89. Excel ఏమిటి?
A) OS
B) Application software
C) Hardware
D) Network
90. MS Word ఏమిటి?
A) OS
B) Application software
C) Hardware
D) Network
91. Database అంటే ఏమిటి?
A) Collection of data
B) Device
C) Software
D) Network
92. SQL ఉపయోగం ఏమిటి?
A) Programming
B) Database management
C) Hardware
D) Network
93. Algorithm అంటే ఏమిటి?
A) Step-by-step solution
B) Device
C) Software
D) Network
94. Programming language ఉదాహరణ ఏది?
A) C
B) Java
C) Python
D) All
95. Compiler పని ఏమిటి?
A) Translate code
B) Store data
C) Output
D) Input
96. Debugging అంటే ఏమిటి?
A) Error finding
B) Error removing
C) Both
D) None
97. Virus ప్రభావం ఏమిటి?
A) Damage data
B) Slow system
C) Both
D) None
98. Backup ఎందుకు అవసరం?
A) Data safety
B) Speed
C) Storage
D) Output
99. Password ఉపయోగం ఏమిటి?
A) Security
B) Storage
C) Output
D) Input
100. Login అంటే ఏమిటి?
A) Access system
B) Exit system
C) Storage
D) Output
101. Logout అంటే ఏమిటి?
A) Enter system
B) Exit system
C) Storage
D) Input
102. Social media అంటే ఏమిటి?
A) Communication platform
B) Device
C) Software
D) Network
103. YouTube ఏమిటి?
A) Search engine
B) Video platform
C) Software
D) Hardware
104. Facebook ఏమిటి?
A) Social media
B) Device
C) Network
D) Software
105. Twitter ఏమిటి?
A) Social media
B) Device
C) Software
D) Hardware
106. Email ఉపయోగం ఏమిటి?
A) Communication
B) Storage
C) Output
D) Input
107. Spam అంటే ఏమిటి?
A) Important mail
B) Unwanted mail
C) Data
D) Software
108. Attachment అంటే ఏమిటి?
A) File
B) Device
C) Software
D) Network
109. Download అంటే ఏమిటి?
A) Data receive
B) Data send
C) Storage
D) Output
110. Upload అంటే ఏమిటి?
A) Data send
B) Data receive
C) Storage
D) Input
111. Streaming అంటే ఏమిటి?
A) Live data viewing
B) Storage
C) Input
D) Output
112. E-commerce అంటే ఏమిటి?
A) Online shopping
B) Device
C) Software
D) Network
113. Digital payment అంటే ఏమిటి?
A) Online transaction
B) Offline transaction
C) Cash payment
D) None
114. ATM ఉపయోగం ఏమిటి?
A) Withdraw cash
B) Deposit cash
C) Both
D) None
115. Debit card ఉపయోగం ఏమిటి?
A) Payment
B) Storage
C) Input
D) Output
116. Credit card ఉపయోగం ఏమిటి?
A) Loan payment
B) Cash
C) Storage
D) Network
117. OTP అంటే ఏమిటి?
A) One Time Password
B) One Type Password
C) Online Password
D) None
118. QR code ఉపయోగం ఏమిటి?
A) Payment
B) Storage
C) Output
D) Input
119. Blockchain అంటే ఏమిటి?
A) Digital ledger
B) Device
C) Software
D) Network
120. Cryptocurrency అంటే ఏమిటి?
A) Digital currency
B) Paper currency
C) Coin
D) None
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
Shaktimatha Learning | Mega Learning Library
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