## Discussion Forum

Que. | If there are N people in the world and are using secret key encryption/decryption for privacy purpose, then number of secret keys required will be: |

a. | N |

b. | N-1 |

c. | N*(N-1)/2 |

d. | N*(N+1)/2 |

Answer:N*(N-1)/2 |

Que. | If there are N people in the world and are using secret key encryption/decryption for privacy purpose, then number of secret keys required will be: |

a. | N |

b. | N-1 |

c. | N*(N-1)/2 |

d. | N*(N+1)/2 |

Answer:N*(N-1)/2 |

Questions from Previous year GATE question papers

UGC NET Previous year questions and practice sets

Attempt a small test to analyze your preparation level. This GATE exam includes questions from previous year GATE papers.

Practice test for UGC NET Computer Science Paper. The questions asked in this NET practice paper are from various previous year papers.