A network administrator is setting up a new network for their company. The administrator understands the importance of accurate timekeeping for security and logging purposes and decides to configure an NTP server for the network.

The network administrator wants to ensure the highest level of accuracy for the network's time synchronization.

Which type of NTP server should the network administrator plan to connect to directly for the most accurate time?

answer

Stratum $4$

Stratum $1$

Stratum $2$

Stratum $3$