Answer
The IUPAC name of the alkyne is $2,2,5-trimethylhept-2-yne$
Work Step by Step
The compound has 7 carbon atoms in its longest carbon chain containing the triple bond(hept−). It has 3 $methyl$− substituents at positions 2,2, and 5, and a triple bond at position 3. So, the IUPAC name of the alkyne is $2,2,5-trimethylhept-2-yne$