Which two statements about NTP version 4 are true? (Choose two)

A.
It supports fast synchronization at starting and before network failures.

B.
It supports automatic server discovery.

C.
It uses a fixed-point arithmetic

D.
It supports the “nanokernel” kernel implementation.

E.
It does not support Public-Key Cryptography

Explanation:
4.1.9. What’s new in Version 4?
According to the NTP Version 4 Release Notes found in release.htm, the new features of version
four (as compared to version three) arE.
Use of floating-point arithmetic instead of fixed-point arithmetic.
Redesigned clock discipline algorithm that improves accuracy, handling of network jitter, and
polling intervals.
Support for the nanokernel kernel implementation that provides nanosecond precision as well as
improved algorithms.
Public-Key cryptography known as autokey that avoids having common secret keys.
Automatic server discovery (manycast mode)
Fast synchronization at startup and after network failures (burst mode)
New and revised drivers for reference clocks
Support for new platforms and operating systems