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QusWhat is the main purpose of a firewall in network security? Qusनेटवर्क सुरक्षा में फ़ायरवॉल का मुख्य उद्देश्य क्या है?

A. To store data
B. To prevent unauthorized access
C. To accelerate internet speed
D. To diagnose network issues


Solution
B. To prevent unauthorized access



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