Working with Dates and Times in Ruby MCQ question and answer with solution

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Current Affairs Interview Blog

How do you find the number of days in the current month in Ruby?

A) Date.today.days_in_month B) Time.now.days_in_month C) DateTime.current.days_in_month D) Time.days_in_current_month

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Answer & Solution

Answer: Option A

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What does the utc method do for a Time object in Ruby?

A) Converts the Time object to the number of seconds since the Unix epoch B) Returns the time zone of the Time object C) Converts the Time object to the user's local time zone D) Converts the Time object to Coordinated Universal Time (UTC)

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Answer & Solution

Answer: Option D

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How do you find the number of weeks in the current year in Ruby?

A) Time.now.weeks_in_year B) DateTime.current.weeks_in_year C) Date.today.weeks_in_year D) Date.today.days_in_year

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Answer & Solution

Answer: Option C

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How do you find the number of seconds between two DateTime objects in Ruby?

A) Use the difference method with the seconds option B) Subtract one DateTime object from another and convert the result to seconds C) Use the delta method with the seconds option D) None of the above

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Answer & Solution

Answer: Option B

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What does the at_beginning_of_day method do for a DateTime object in Ruby?

A) Sets the time of the DateTime object to 23:59:59 B) Sets the date of the DateTime object to the beginning of the year C) Sets the time of the DateTime object to 00:00:00 D) Sets the date of the DateTime object to the beginning of the month

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Answer & Solution

Answer: Option C

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How do you find the number of milliseconds between two Time objects in Ruby?

A) Use the milliseconds_between method B) Use the difference method with the milliseconds option C) Use the delta method with the milliseconds option D) Subtract one Time object from another and multiply the result by 1000 to convert to milliseconds

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Answer & Solution

Answer: Option D

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What is the purpose of the beginning_of_week method for a Date object in Ruby?

A) Sets the Date object to the beginning of the current week B) Sets the Date object to the beginning of the month C) Sets the Date object to the beginning of the year D) Sets the Date object to the beginning of the day

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Answer & Solution

Answer: Option A

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How do you find the number of hours between two DateTime objects in Ruby?

A) Use the delta method with the hours option B) Use the difference method with the hours option C) Use the hours_between method D) Subtract one DateTime object from another and divide the result by 3600 to convert to hours

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Answer & Solution

Answer: Option D

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What does the advance method do for a Date object in Ruby?

A) Subtracts a specified number of days, months, or years from the Date object B) Adds a specified number of seconds, minutes, or hours to the Date object C) Adds a specified number of days, months, or years to the Date object D) Subtracts a specified number of seconds, minutes, or hours from the Date object

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Answer & Solution

Answer: Option C

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What is the purpose of the seconds_since_midnight method for a Time object in Ruby?

A) Returns the number of seconds since the beginning of the month B) Returns the number of seconds since midnight on the current day C) Returns the number of seconds since the beginning of the year D) None of the above

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Answer & Solution

Answer: Option B

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Working with Dates and Times in Ruby MCQ question and answer with solution | Ruby Programming MCQs