Question

Point out the correct statement?

(a) POSIX represents a portable operating system interface, primarily for UNIX systems

(b) There are different levels of indication that can be used, ranging from mere notification to fatal error

(c) The default input format for POSIX dates consists of the month, followed by the year and day, separated by slashes or dashes

(d) R don’t have any way to indicate to you that something’s not right

This question was addressed to me in a national level competition.

I need to ask this question from Dates and Times topic in portion Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

Correct answer is (a) POSIX represents a portable operating system interface, primarily for UNIX systems

To explain I would say: Dates stored in the POSIX format are date/time values (like dates with the chron library), but also allow modification of time zones.