[ Invention & Inventors ]

झारखंड में आयोजित होने वाली JPSC, JSSC, JET, झारखंड पुलिस भर्ती परीक्षा आदि के लिए उपयोगी सामान्य अध्ययन।

[ Invention & Inventors ]

Useful GK for JPSC, JSSC, JET, Jharkhand Police and other exams.
81. MONGODB
81.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: MongoDB Inc.
व्याख्या: NoSQL database system
Correct Answer:
Explanation: Important question.
82. SQL SERVER
82.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Microsoft
व्याख्या: Database management system
Correct Answer:
Explanation: Important question.
83. POSTGRESQL
83.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: University of California
व्याख्या: Open source database system
Correct Answer:
Explanation: Important question.
84. WINDOWS
84.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Microsoft (Bill Gates)
व्याख्या: Graphical operating system
Correct Answer:
Explanation: Important question.
85. LINUX
85.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Linus Torvalds
व्याख्या: Open source operating system
Correct Answer:
Explanation: Important question.
86. ANDROID
86.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Google
व्याख्या: Mobile operating system
Correct Answer:
Explanation: Important question.
87. IOS
87.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Apple Inc.
व्याख्या: Apple mobile OS
Correct Answer:
Explanation: Important question.
88. SNAPCHAT
88.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Evan Spiegel
व्याख्या: Disappearing message app
Correct Answer:
Explanation: Important question.
89. LINKEDIN
89.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Reid Hoffman
व्याख्या: Professional networking platform
Correct Answer:
Explanation: Important question.
90. TELEGRAM
90.
[A]
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[B]
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[C]
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[D]
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सही उत्तर: Pavel Durov
व्याख्या: Secure messaging app
Correct Answer:
Explanation: Important question.