You are fixing the time zone on a minimal system that has no systemd and no timedatectl. The machine must use Europe/Lisbon. Which action configures it correctly?
LPIC-1 Exam 102-500, objective 107. Administrative tasks hard
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How these questions are written — where each question comes from, what the verification ledger records, and what happens when one is found wrong.
The options
Correct ln -sf /usr/share/zoneinfo/Europe/Lisbon /etc/localtime
Correct. /etc/localtime must be, or point at, the compiled zone file for the chosen zone; a forced symbolic link is the standard way to repoint it.
Not correct echo Europe/Lisbon > /etc/localtime
Wrong. /etc/localtime holds binary TZif data, not a zone name. Overwriting it with text leaves the C library unable to parse it, and times fall back to UTC.
Not correct cp /etc/localtime /usr/share/zoneinfo/Europe/Lisbon
Wrong direction. This overwrites the distribution's zone database entry with the old configuration, corrupting the source of truth while leaving the system's zone unchanged.
Not correct tzselect Europe/Lisbon
Wrong. tzselect asks a series of questions and then prints the TZ value it recommends. It is an advisory helper and changes no file on the system.
Why
/usr/share/zoneinfo holds the compiled zone database, one TZif file per zone including its historic offsets and daylight-saving rules, and /etc/localtime is the system's pointer into it, usually a symlink but sometimes a copy. Some distributions additionally keep the zone name as text in /etc/timezone for their own tooling, but that file is documentation for the package manager rather than something the C library reads.
Where this comes from
- Cited
- manual page tzset(3)
Practise this
Reading one question is not practice. The trainer will draw a short set from objective 107 and space the ones you get wrong.
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