According to IUPAC system, the compound   is named as:

The structure of the IUPAC compound is

Secondary prefix+ primary prefix + root word + Primary suffix + Secondary suffix

It is a cyclic compound, with one $\mathrm{OH}$ group on position $1$ and double bond at position $2$.

There is no secondary prefix in the above compound. primary prefix is cyclo. Root word is hex, primary suffix is en and secondary suffix is ol.

Hence, the name is Cyclohex-2-en-1-ol.