किस प्रकार का कंप्यूटर वायरस विशेष रूप से निष्पादन योग्य फ़ाइलों (जैसे .exe या .com) से जुड़ जाता है और उन फ़ाइलों के निष्पादित होने पर फैलता है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?