Question 76 of 979
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XK0-006 Practice Question: A system administrator needs to configure a Linux…
A system administrator needs to configure a Linux server to automatically synchronize time with the NTP pool servers. The server should also act as an NTP peer for other servers on the local network. Which file should be modified, and which directive should be added?
⚠ Common exam trap
Many exam-takers confuse the legacy `ntpd` configuration file (`/etc/ntp.conf`) with the modern `chrony` configuration file (`/etc/chrony/chrony.conf`) and forget that only chrony (or ntpd with proper restrict rules) can act as a server/peer, while systemd-timesyncd is a client-only service.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
/etc/chrony/chrony.conf with "pool pool.ntp.org iburst" and "allow 192.168.1.0/24"
The system uses chrony (the default NTP implementation on modern RHEL/CentOS 8+ and many other distributions). The `pool` directive with `iburst` synchronizes time from NTP pool servers, and the `allow` directive grants local subnet peers access to the chronyd service, enabling the server to act as an NTP peer for other hosts on 192.168.1.0/24.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
/etc/chrony/chrony.conf with "pool pool.ntp.org iburst" and "allow 192.168.1.0/24"
Why this is correct
Correct file and directives for both client sync and allowing other servers to peer.
- ✗
/etc/npt.conf with "peer pool.ntp.org"
Why it's wrong here
Typo in filename and 'peer' is not used for NTP pool; also missing allow directive.
- ✗
/etc/systemd/timesyncd.conf with "NTP=pool.ntp.org" and "LocalPort=123"
Why it's wrong here
timesyncd is a SNTP client only; it cannot act as a server.
- ✗
/etc/ntp.conf with "server pool.ntp.org iburst"
Why it's wrong here
ntpd does not have a built-in 'allow' directive for acting as a peer; also ntp.conf is not typical for newer systems.
Visual reference
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Last reviewed: Jul 4, 2026
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