LFCS Question #112: Real Exam Question with Answer & Explanation

Question

What is true about the file /etc/localtime?

Options

• AIt is a plain text file containing a string such as Europe/Berlin.
• BIt is created and maintained by the NTP service based on the geolocation of the system's IP
• CIt is a symlink to /sys/device/clock/ltime and always contains the current local time.
• DIt is either a symlink to or a copy of a timezone information file such as

Explanation

The /etc/localtime file is either a symbolic link to or a copy of a timezone data file, informing the system of its local timezone.

Common mistakes.

• A. /etc/localtime is not a plain text file with a simple string; it contains binary timezone data or is a symlink to such a file.
• B. The NTP service synchronizes the system clock but does not create or maintain the /etc/localtime file, which is managed by timezone configuration utilities.
• C. /etc/localtime is not typically a symlink to /sys/device/clock/ltime and specifies timezone rules, not the current local time itself.

Concept tested. Linux timezone configuration (/etc/localtime)

Reference. https://man7.org/linux/man-pages/man5/localtime.5.html

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