# GATE (Graduate Aptitude Test in Engineering) Computer Science: Questions 1665 - 1669 of 2080

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## Question 1665

Appeared in Year: *2019 (UGC-NET)*

### Question

MCQ▾Replacing the expression by is known as

### Choices

Choice (4) | Response | |
---|---|---|

a. | Constant folding | |

b. | Code reduction | |

c. | Induction variable | |

d. | Strength reduction |

## Question 1666

Appeared in Year: *2019 (UGC-NET)*

### Question

MCQ▾Consider three intensive processes, which requires 10,20 and 30 units of time and arrive at times 0,2 and 6 respectively. How many context switches are needed if the operating system implements a shortest remaining time first scheduling algorithm? Do not count the context switches at time zero ad at the end

### Choices

Choice (4) | Response | |
---|---|---|

a. | 3 | |

b. | 4 | |

c. | 2 | |

d. | 1 |

## Question 1667

Appeared in Year: *2019 (UGC-NET)*

### Question

MCQ▾How many address lines and data lines are required to provide a memory capacity of ?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 16,16 | |

b. | ||

c. | 4,16 | |

d. | 10,4 |

## Question 1668

### Question

MCQ▾The Integral domain is a ________ ring in which the product of any two nonzero elements will be nonzero.

### Choices

Choice (4) | Response | |
---|---|---|

a. | (1) nor (2) | |

b. | Commutative | |

c. | Associative | |

d. | (1) and (2) |

## Question 1669

### Question

MCQ▾In Computer Arithmetic, ________ is used to represent integers and fractions?

### Choices

Choice (4) | Response | |
---|---|---|

a. | Fixed-Point numbers & Variable-Point numbers | |

b. | Fixed-Point numbers | |

c. | Variable-Point numbers | |

d. | All of the above |